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It doesn't need the option in the struct annotation which is allocated
for each symbol. It can directly use the global options and save 8
bytes per symbol.
Reviewed-by: Ian Rogers <[email protected]>
Signed-off-by: Namhyung Kim <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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So that it can get rid of the unused data.
Reviewed-by: Ian Rogers <[email protected]>
Signed-off-by: Namhyung Kim <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Now it only cares about the global options so it can just handle it
without the argument.
Reviewed-by: Ian Rogers <[email protected]>
Signed-off-by: Namhyung Kim <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Now it can use the global options and no need save local browser
options separately.
Reviewed-by: Ian Rogers <[email protected]>
Signed-off-by: Namhyung Kim <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Now it can directly use the global options and no need to pass it as an
argument.
Reviewed-by: Ian Rogers <[email protected]>
Signed-off-by: Namhyung Kim <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
[ Fixup build with GTK2=1 ]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Use the global option and drop the local copy.
Reviewed-by: Ian Rogers <[email protected]>
Signed-off-by: Namhyung Kim <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Use the global option and drop the local copy.
Reviewed-by: Ian Rogers <[email protected]>
Signed-off-by: Namhyung Kim <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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The annotation options are to control the behavior of objdump and the
output. It's basically used by 'perf annotate' but 'perf report' and
'perf top' can call it on TUI dynamically.
But it doesn't need to have a copy of annotation options in many places.
As most of the work is done in the util/annotate.c file, add a global
variable and set/use it instead of having their own copies.
Reviewed-by: Ian Rogers <[email protected]>
Signed-off-by: Namhyung Kim <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Metrics were added by a callback but commit a4b8cfcabb1d90ec ("perf
stat: Delay metric parsing") postponed this to allow optimizations based
on the CPU configuration.
In doing so it stopped errors in metric parsing from causing 'perf stat'
termination.
This change adds the termination for bad metric names back in.
Fixes: a4b8cfcabb1d90ec ("perf stat: Delay metric parsing")
Reported-by: Arnaldo Carvalho de Melo <[email protected]>
Signed-off-by: Ian Rogers <[email protected]>
Tested-by: Arnaldo Carvalho de Melo <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Ian Rogers <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Closes: https://lore.kernel.org/lkml/[email protected]/
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Comparing pointers without RC_CHK_ACCESS means the indirect object
will be compared rather than the underlying maps when REFCNT_CHECKING
is enabled. Fix by adding missing RC_CHK_EQUAL.
Signed-off-by: Ian Rogers <[email protected]>
Acked-by: Namhyung Kim <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: Athira Jajeev <[email protected]>
Cc: Changbin Du <[email protected]>
Cc: Colin Ian King <[email protected]>
Cc: Dmitrii Dolgov <[email protected]>
Cc: German Gomez <[email protected]>
Cc: Guilherme Amadio <[email protected]>
Cc: Huacai Chen <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: James Clark <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: K Prateek Nayak <[email protected]>
Cc: Kajol Jain <[email protected]>
Cc: Kan Liang <[email protected]>
Cc: Leo Yan <[email protected]>
Cc: Li Dong <[email protected]>
Cc: Liam Howlett <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Masami Hiramatsu (Google) <[email protected]>
Cc: Miguel Ojeda <[email protected]>
Cc: Ming Wang <[email protected]>
Cc: Nick Terrell <[email protected]>
Cc: Paolo Bonzini <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Ravi Bangoria <[email protected]>
Cc: Sandipan Das <[email protected]>
Cc: Sean Christopherson <[email protected]>
Cc: Steinar H. Gunderson <[email protected]>
Cc: Vincent Whitchurch <[email protected]>
Cc: Wenyu Liu <[email protected]>
Cc: Yang Jihong <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Move the find and certain other symbol maps__* functions to maps.c for
better abstraction.
Signed-off-by: Ian Rogers <[email protected]>
Acked-by: Namhyung Kim <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: Athira Jajeev <[email protected]>
Cc: Changbin Du <[email protected]>
Cc: Colin Ian King <[email protected]>
Cc: Dmitrii Dolgov <[email protected]>
Cc: German Gomez <[email protected]>
Cc: Guilherme Amadio <[email protected]>
Cc: Huacai Chen <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: James Clark <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: K Prateek Nayak <[email protected]>
Cc: Kajol Jain <[email protected]>
Cc: Kan Liang <[email protected]>
Cc: Leo Yan <[email protected]>
Cc: Li Dong <[email protected]>
Cc: Liam Howlett <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Masami Hiramatsu (Google) <[email protected]>
Cc: Miguel Ojeda <[email protected]>
Cc: Ming Wang <[email protected]>
Cc: Nick Terrell <[email protected]>
Cc: Paolo Bonzini <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Ravi Bangoria <[email protected]>
Cc: Sandipan Das <[email protected]>
Cc: Sean Christopherson <[email protected]>
Cc: Steinar H. Gunderson <[email protected]>
Cc: Vincent Whitchurch <[email protected]>
Cc: Wenyu Liu <[email protected]>
Cc: Yang Jihong <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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When mapping an IP it is either an identity mapping or a DSO relative
mapping, so a single bit is required in the struct to identify
this.
The current code uses function pointers, adding 2 pointers per map and
also pushing the size of a map beyond 1 cache line.
Switch to using a byte to identify the mapping type (as well as priv and
erange_warned), to avoid any masking.
Change struct maps's layout to avoid holes.
Before:
```
struct map {
u64 start; /* 0 8 */
u64 end; /* 8 8 */
_Bool erange_warned:1; /* 16: 0 1 */
_Bool priv:1; /* 16: 1 1 */
/* XXX 6 bits hole, try to pack */
/* XXX 3 bytes hole, try to pack */
u32 prot; /* 20 4 */
u64 pgoff; /* 24 8 */
u64 reloc; /* 32 8 */
u64 (*map_ip)(const struct map *, u64); /* 40 8 */
u64 (*unmap_ip)(const struct map *, u64); /* 48 8 */
struct dso * dso; /* 56 8 */
/* --- cacheline 1 boundary (64 bytes) --- */
refcount_t refcnt; /* 64 4 */
u32 flags; /* 68 4 */
/* size: 72, cachelines: 2, members: 12 */
/* sum members: 68, holes: 1, sum holes: 3 */
/* sum bitfield members: 2 bits, bit holes: 1, sum bit holes: 6 bits */
/* last cacheline: 8 bytes */
};
```
After:
```
struct map {
u64 start; /* 0 8 */
u64 end; /* 8 8 */
u64 pgoff; /* 16 8 */
u64 reloc; /* 24 8 */
struct dso * dso; /* 32 8 */
refcount_t refcnt; /* 40 4 */
u32 prot; /* 44 4 */
u32 flags; /* 48 4 */
enum mapping_type mapping_type:8; /* 52: 0 4 */
/* Bitfield combined with next fields */
_Bool erange_warned; /* 53 1 */
_Bool priv; /* 54 1 */
/* size: 56, cachelines: 1, members: 11 */
/* padding: 1 */
/* last cacheline: 56 bytes */
};
```
Signed-off-by: Ian Rogers <[email protected]>
Acked-by: Namhyung Kim <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: Athira Jajeev <[email protected]>
Cc: Changbin Du <[email protected]>
Cc: Colin Ian King <[email protected]>
Cc: Dmitrii Dolgov <[email protected]>
Cc: German Gomez <[email protected]>
Cc: Guilherme Amadio <[email protected]>
Cc: Huacai Chen <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: James Clark <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: K Prateek Nayak <[email protected]>
Cc: Kajol Jain <[email protected]>
Cc: Kan Liang <[email protected]>
Cc: Leo Yan <[email protected]>
Cc: Li Dong <[email protected]>
Cc: Liam Howlett <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Masami Hiramatsu (Google) <[email protected]>
Cc: Miguel Ojeda <[email protected]>
Cc: Ming Wang <[email protected]>
Cc: Nick Terrell <[email protected]>
Cc: Paolo Bonzini <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Ravi Bangoria <[email protected]>
Cc: Sandipan Das <[email protected]>
Cc: Sean Christopherson <[email protected]>
Cc: Steinar H. Gunderson <[email protected]>
Cc: Vincent Whitchurch <[email protected]>
Cc: Wenyu Liu <[email protected]>
Cc: Yang Jihong <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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binary
The diff test depends on finding the symbol test_loop in perf and will
fail if perf has been stripped and no debug object is available. In that
case, skip the test instead.
Suggested-by: Adrian Hunter <[email protected]>
Signed-off-by: Ian Rogers <[email protected]>
Tested-by: Adrian Hunter <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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In the ELF file, multiple NOTE segments may exist.
To locate the build id, the process shall persist
in parsing NOTE segments until the build id is found.
Signed-off-by: Chengen Du <[email protected]>
Acked-by: Ian Rogers <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Wait until a lost sample occurs to allocate the lost samples buffer,
often the buffer isn't necessary. This saves a 64kb allocation and
5.3kb of peak memory consumption.
Signed-off-by: Ian Rogers <[email protected]>
Acked-by: Namhyung Kim <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: Athira Jajeev <[email protected]>
Cc: Changbin Du <[email protected]>
Cc: Colin Ian King <[email protected]>
Cc: Dmitrii Dolgov <[email protected]>
Cc: German Gomez <[email protected]>
Cc: Guilherme Amadio <[email protected]>
Cc: Huacai Chen <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: James Clark <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: K Prateek Nayak <[email protected]>
Cc: Kajol Jain <[email protected]>
Cc: Kan Liang <[email protected]>
Cc: Leo Yan <[email protected]>
Cc: Li Dong <[email protected]>
Cc: Liam Howlett <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Masami Hiramatsu (Google) <[email protected]>
Cc: Miguel Ojeda <[email protected]>
Cc: Ming Wang <[email protected]>
Cc: Nick Terrell <[email protected]>
Cc: Paolo Bonzini <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Ravi Bangoria <[email protected]>
Cc: Sandipan Das <[email protected]>
Cc: Sean Christopherson <[email protected]>
Cc: Steinar H. Gunderson <[email protected]>
Cc: Vincent Whitchurch <[email protected]>
Cc: Wenyu Liu <[email protected]>
Cc: Yang Jihong <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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When the "cycles" event isn't available evsel will fallback to the
"cpu-clock" software event.
"task-clock" is similar to "cpu-clock" but only runs when the process is
running.
Falling back to "cpu-clock" when not system wide leads to confusion, by
falling back to "task-clock" it is hoped the confusion is less.
Pass the target to determine if "task-clock" is more appropriate.
Update a nearby comment and debug string for the change.
Signed-off-by: Ian Rogers <[email protected]>
Tested-by: Athira Rajeev <[email protected]>
Acked-by: Namhyung Kim <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Ajay Kaher <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Alexey Makhalov <[email protected]>
Cc: Ian Rogers <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Kan Liang <[email protected]>
Cc: Leo Yan <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Ravi Bangoria <[email protected]>
Cc: Sandipan Das <[email protected]>
Cc: Yang Jihong <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Json output didn't set the skip_duplicate_pmus callback yielding a
segfault.
Fixes: cd4e1efbbc40 ("perf pmus: Skip duplicate PMUs and don't print list suffix by default")
Signed-off-by: Ian Rogers <[email protected]>
Cc: James Clark <[email protected]>
Cc: Kan Liang <[email protected]>
Cc: Athira Rajeev <[email protected]>
Cc: [email protected]
Link: https://lore.kernel.org/r/[email protected]
[namhyung: updated subject line according to Arnaldo]
Signed-off-by: Namhyung Kim <[email protected]>
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"synchronous"
There is a spelling mistake in an option description. Fix it.
Signed-off-by: Colin Ian King <[email protected]>
Acked-by: Ian Rogers <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: [email protected]
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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There are some old bug reports on perf diff crashing:
https://rhaas.blogspot.com/2012/06/perf-good-bad-ugly.html
Happening across them I was prompted to add two very basic tests that
will give some 'perf diff' coverage.
Signed-off-by: Ian Rogers <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Athira Jajeev <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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The below error can be triggered on a hybrid machine.
$ perf mem record -t load sleep 1
event syntax error: 'breakpoint/mem-loads,ldlat=30/P'
\___ Bad event or PMU
Unable to find PMU or event on a PMU of 'breakpoint'
In the perf_mem_events__record_args(), the current perf never checks the
availability of a mem event on a given PMU. All the PMUs will be added
to the perf mem event list. Perf errors out for the unsupported PMU.
Extend perf_mem_event__supported() and take a PMU into account. Check
the mem event for each PMU before adding it to the perf mem event list.
Optimize the perf_mem_events__init() a little bit. The function is to
check whether the mem events are supported in the system. It doesn't
need to scan all PMUs. Just return with the first supported PMU is good
enough.
Fixes: 5752c20f3787c9bc ("perf mem: Scan all PMUs instead of just core ones")
Reported-by: Ammy Yi <[email protected]>
Signed-off-by: Kan Liang <[email protected]>
Tested-by: Ammy Yi <[email protected]>
Acked-by: Ian Rogers <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Ravi Bangoria <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Running "perf list" on powerpc fails with segfault as below:
$ ./perf list
Segmentation fault (core dumped)
$
This happens because of duplicate events in the JSON list. The powerpc
JSON event list contains some event with same event name, but different
event code. They are:
- PM_INST_FROM_L3MISS (Present in datasource and frontend)
- PM_MRK_DATA_FROM_L2MISS (Present in datasource and marked)
- PM_MRK_INST_FROM_L3MISS (Present in datasource and marked)
- PM_MRK_DATA_FROM_L3MISS (Present in datasource and marked)
pmu_events_table__num_events() uses the value from table_pmu->num_entries
which includes duplicate events as well. This causes issue during "perf
list" and results in a segmentation fault.
Since both event codes are valid, append _DSRC to the Data Source events
(datasource.json), so that they would have a unique name.
Also add PM_DATA_FROM_L2MISS_DSRC and PM_DATA_FROM_L3MISS_DSRC events.
With the fix, 'perf list' works as expected.
Fixes: fc143580753348c6 ("perf vendor events power10: Update JSON/events")
Signed-off-by: Athira Jajeev <[email protected]>
Tested-by: Disha Goel <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Disha Goel <[email protected]>
Cc: Ian Rogers <[email protected]>
Cc: James Clark <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Kajol Jain <[email protected]>
Cc: [email protected]
Cc: Madhavan Srinivasan <[email protected]>
Cc: Namhyung Kim <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Test that JSON output produces valid JSON.
Reviewed-by: Athira Jajeev <[email protected]>
Signed-off-by: Ian Rogers <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Athira Jajeev <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: James Clark <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Kan Liang <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Avoid replicated logic by having a common library to set the PYTHON
environment variable.
Reviewed-by: Athira Jajeev <[email protected]>
Signed-off-by: Ian Rogers <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: James Clark <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Kan Liang <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Migrate Makefile.tests to Build so that variables like rule_mkdir are
defined via Makefile.build (needed so the output directory can be
created). This requires SHELLCHECK being exported and the clean rule
tweaking to remove the files in find.
Change find "-perm -o=x" as it was failing on my Debian based Linux
kernel tree, switch to using "-executable".
Adding a filename prefix of "." to the shellcheck log files is a pain
and error prone in make, remove this prefix and just add the
shellcheck log files to .gitignore.
Fix the command echo so that running the test is displayed.
Fixes: 1638b11ef8156c85 ("perf tools: Add perf binary dependent rule for shellcheck log in Makefile.perf")
Reviewed-by: Athira Jajeev <[email protected]>
Signed-off-by: Ian Rogers <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: James Clark <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Kan Liang <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Add JSON files for AmpereOneX core PMU events and metrics.
Reviewed-by: Ian Rogers <[email protected]>
Signed-off-by: Ilkka Koskinen <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: James Clark <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: John Garry <[email protected]>
Cc: Leo Yan <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Mike Leach <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Will Deacon <[email protected]>
Cc: [email protected]
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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GPC_FLUSH_MEM_FAULT
The documentation wrongly called the event as BPU_FLUSH_MEM_FAULT and now
has been fixed. Correct the name in the perf tool as well.
Fixes: a9650b7f6fc09d16 ("perf vendor events arm64: Add AmpereOne core PMU events")
Reviewed-by: Ian Rogers <[email protected]>
Signed-off-by: Ilkka Koskinen <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Ilkka Koskinen <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: James Clark <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: John Garry <[email protected]>
Cc: Leo Yan <[email protected]>
Cc: [email protected]
Cc: Mark Rutland <[email protected]>
Cc: Mike Leach <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Will Deacon <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
AmpereOne metrics were missing DefaultMetricgroupName from metrics with
"Default" in group name resulting perf to segfault. Add the missing
field to address the issue.
Fixes: 59faeaf80d02 ("perf vendor events arm64: Fix for AmpereOne metrics")
Signed-off-by: Ilkka Koskinen <[email protected]>
Reviewed-by: Ian Rogers <[email protected]>
Cc: James Clark <[email protected]>
Cc: Will Deacon <[email protected]>
Cc: Leo Yan <[email protected]>
Cc: Mike Leach <[email protected]>
Cc: John Garry <[email protected]>
Cc: [email protected]
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Namhyung Kim <[email protected]>
|
|
A metric is default by having "Default" within its groups. The default
metricgroup name needn't be set and this can result in segv in
default_metricgroup_cmp and perf_stat__print_shadow_stats_metricgroup
that assume it has a value when there is a Default metric group. To
avoid the segv initialize the value to "".
Fixes: 1c0e47956a8e ("perf metrics: Sort the Default metricgroup")
Signed-off-by: Ian Rogers <[email protected]>
Reviewed-and-tested-by: Ilkka Koskinen <[email protected]>
Cc: James Clark <[email protected]>
Cc: Will Deacon <[email protected]>
Cc: Leo Yan <[email protected]>
Cc: Mike Leach <[email protected]>
Cc: Kajol Jain <[email protected]>
Cc: Kan Liang <[email protected]>
Cc: John Garry <[email protected]>
Cc: [email protected]
Cc: [email protected]
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Namhyung Kim <[email protected]>
|
|
The 'vg' register for arm64 shows up in --user_regs as available when
masking the variable AT_HWCAP with 1 << 22 returns '1' as done in
perf_regs.c.
However, in subtests for support of SVE, the check for the 'vg' register
is done by masking the variable AT_HWCAP with the value 0x200000 which
is equals to 1 << 21 instead of 1 << 22.
This results in inconsistencies on certain systems where the test
expects that the 'vg' register is not operational when it is, and
vice-versa.
During the testing on a machine that the test expected not to have the
'vg' register available, 'perf record' with the option --user-regs
showed records for the 'vg' register together with all of the others,
which means that the mask for the subtest of perf_event_attr is off by
one.
Change the value of the mask from 0x200000 to 0x400000 to correct it.
Fixes: 9440ebdc333dd12e ("perf test arm64: Add attr tests for new VG register")
Reviewed-by: Leo Yan <[email protected]>
Signed-off-by: Veronika Molnarova <[email protected]>
Cc: James Clark <[email protected]>
Cc: Michael Petlan <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
So that we don't have to go thru the series of strcmp(arch) calls for
each id -> string translation.
Reviewed-by: Ian Rogers <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: David Laight <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Namhyung Kim <[email protected]>
Link: https://lore.kernel.org/lkml/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
That will cache the arch specific function translating error numbers to
strings.
Reviewed-by: Ian Rogers <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: David Laight <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Namhyung Kim <[email protected]>
Link: https://lore.kernel.org/lkml/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
Namhyung reported:
I'm seeing a build error on my Alpine linux image which uses busybox +
musl libc:
In file included from trace/beauty/arch_errno_names.c:1,
from builtin-trace.c:899:
/build/trace/beauty/generated/arch_errno_name_array.c: In function 'arch_syscalls__strerrno':
/build/trace/beauty/generated/arch_errno_name_array.c:142:49: error: unused parameter 'arch' [-Werror=unused-parameter]
142 | const char *arch_syscalls__strerrno(const char *arch, int err)
It looks like busybox find command doesn't have -printf option
find: unrecognized: -printf
, Yesterday 9:16 PM
,
BusyBox v1.36.1 (2023-07-27 17:12:24 UTC) multi-call binary.
Usage: find [-HL] [PATH]... [OPTIONS] [ACTIONS]
Search for files and perform actions on them.
First failed action stops processing of current file.
Defaults: PATH is current directory, action is '-print'
So just remove it and pipe find's entry to a basename loop to produce
the same result.
Then use an alternative loop that relies on the shell to avoid needless
forks and execs.
The discussion about it generated the impetus to stop doing strcmps to
find the right table at each errno to string translation but instead do
this just once and then use a function pointer to the right arch
specific table.
Suggested-by: David Laight <[email protected]>
Reported-by: Namhyung Kim <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Hendrik Brueckner <[email protected]>
Cc: Ian Rogers <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Michael Petlan <[email protected]>
Cc: Thomas Richter <[email protected]>
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
This makes "CONTENTION" a top level section (rather than a subsection of
"INFO").
Fixes: 79079f21f50a501f ("perf lock: Add -k and -F options to 'contention' subcommand")
Reviewed-by: James Clark <[email protected]>
Signed-off-by: Nick Forrington <[email protected]>
Tested-by: Ian Rogers <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Namhyung Kim <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
The perf test "probe libc's inet_pton & backtrace it with ping" fails on
powerpc as below:
# perf test -v "probe libc's inet_pton & backtrace it with
ping"
85: probe libc's inet_pton & backtrace it with ping :
--- start ---
test child forked, pid 96028
ping 96056 [002] 127271.101961: probe_libc:inet_pton: (7fffa1779a60)
7fffa1779a60 __GI___inet_pton+0x0 (/usr/lib64/glibc-hwcaps/power10/libc.so.6)
7fffa172a73c getaddrinfo+0x121c (/usr/lib64/glibc-hwcaps/power10/libc.so.6)
FAIL: expected backtrace entry
"gaih_inet.*\+0x[[:xdigit:]]+[[:space:]]\(/usr/lib64/glibc-hwcaps/power10/libc.so.6\)$"
got "7fffa172a73c getaddrinfo+0x121c (/usr/lib64/glibc-hwcaps/power10/libc.so.6)"
test child finished with -1
---- end ----
probe libc's inet_pton & backtrace it with ping: FAILED!
This test installs a probe on libc's inet_pton function, which will use
uprobes and then uses perf trace on a ping to localhost. It gets 3
levels deep backtrace and checks whether it is what we expected or not.
The test started failing from RHEL 9.4 where as it works in previous
distro version (RHEL 9.2). Test expects gaih_inet function to be part of
backtrace. But in the glibc version (2.34-86) which is part of distro
where it fails, this function is missing and hence the test is failing.
From nm and ping command output we can confirm that gaih_inet function
is not present in the expected backtrace for glibc version glibc-2.34-86
[root@xxx perf]# nm /usr/lib64/glibc-hwcaps/power10/libc.so.6 | grep gaih_inet
00000000001273e0 t gaih_inet_serv
00000000001cd8d8 r gaih_inet_typeproto
[root@xxx perf]# perf script -i /tmp/perf.data.6E8
ping 104048 [000] 128582.508976: probe_libc:inet_pton: (7fff83779a60)
7fff83779a60 __GI___inet_pton+0x0 (/usr/lib64/glibc-hwcaps/power10/libc.so.6)
7fff8372a73c getaddrinfo+0x121c (/usr/lib64/glibc-hwcaps/power10/libc.so.6)
11dc73534 [unknown] (/usr/bin/ping)
7fff8362a8c4 __libc_start_call_main+0x84 (/usr/lib64/glibc-hwcaps/power10/libc.so.6)
FAIL: expected backtrace entry
"gaih_inet.*\+0x[[:xdigit:]]+[[:space:]]\(/usr/lib64/glibc-hwcaps/power10/libc.so.6\)$"
got "7fff9d52a73c getaddrinfo+0x121c (/usr/lib64/glibc-hwcaps/power10/libc.so.6)"
With version glibc-2.34-60 gaih_inet function is present as part of the
expected backtrace. So we cannot just remove the gaih_inet function from
the backtrace.
[root@xxx perf]# nm /usr/lib64/glibc-hwcaps/power10/libc.so.6 | grep gaih_inet
0000000000130490 t gaih_inet.constprop.0
000000000012e830 t gaih_inet_serv
00000000001d45e4 r gaih_inet_typeproto
[root@xxx perf]# ./perf script -i /tmp/perf.data.b6S
ping 67906 [000] 22699.591699: probe_libc:inet_pton_3: (7fffbdd80820) 7fffbdd80820 __GI___inet_pton+0x0
(/usr/lib64/glibc-hwcaps/power10/libc.so.6) 7fffbdd31160 gaih_inet.constprop.0+0xcd0
(/usr/lib64/glibc-hwcaps/power10/libc.so.6) 7fffbdd31c7c getaddrinfo+0x14c
(/usr/lib64/glibc-hwcaps/power10/libc.so.6) 1140d3558 [unknown] (/usr/bin/ping)
This patch solves this issue by doing a conditional skip. If there is a
gaih_inet function present in the libc then it will be added to the
expected backtrace else the function will be skipped from being added
to the expected backtrace.
Output with the patch
[root@xxx perf]# ./perf test -v "probe libc's inet_pton & backtrace it
with ping"
83: probe libc's inet_pton & backtrace it with ping :
--- start ---
test child forked, pid 102662
ping 102692 [000] 127935.549973: probe_libc:inet_pton: (7fff93379a60)
7fff93379a60 __GI___inet_pton+0x0 (/usr/lib64/glibc-hwcaps/power10/libc.so.6)
7fff9332a73c getaddrinfo+0x121c (/usr/lib64/glibc-hwcaps/power10/libc.so.6)
11ef03534 [unknown] (/usr/bin/ping)
test child finished with 0
---- end ----
probe libc's inet_pton & backtrace it with ping: Ok
Reported-by: Disha Goel <[email protected]>
Reviewed-by: Athira Jajeev <[email protected]>
Reviewed-by: Ian Rogers <[email protected]>
Signed-off-by: Likhitha Korrapati <[email protected]>
Tested-by: Disha Goel <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Disha Goel <[email protected]>
Cc: James Clark <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Kajol Jain <[email protected]>
Cc: Madhavan Srinivasan <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: [email protected]
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
There are issues as reported that need some more investigation on the
RT kernel front, till that is addressed, skip this test.
This test is already skipped for multiple hardware architectures where
the tested kernel feature is not supported.
Acked-by: Marco Elver <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Clark Williams <[email protected]>
Cc: Ian Rogers <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Juri Lelli <[email protected]>
Cc: Kate Carcia <[email protected]>
Cc: Marco Elver <[email protected]>
Cc: Mike Galbraith <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Link: https://lore.kernel.org/all/[email protected]/
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
Move the part that loads the BTF info to a "btf__available()" that will
lazy load the BTF info so that if we need it for some other test, which
we will in the following cset, we can reuse it.
At some point this will move from this specific 'perf test' entry to be
used in other parts of perf, do it when needed.
Cc: Adrian Hunter <[email protected]>
Cc: Clark Williams <[email protected]>
Cc: Ian Rogers <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Kate Carcia <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
Zstd streams create dictionaries that can require significant RAM,
especially when there is one per-CPU. Tools like 'perf record' won't use
the streams without the -z option, and so the creation of the streams
is pure overhead. Switch to creating the streams on first use.
Committer notes:
ssize_t comes from sys/types.h, size_t from stddef.h. This worked on
glibc as stdlib.h includes both, but not on musl libc. So do what 'man
size_t' says and include sys/types.h and stddef.h instead of stdlib.h
Signed-off-by: Ian Rogers <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: Athira Jajeev <[email protected]>
Cc: Changbin Du <[email protected]>
Cc: Colin Ian King <[email protected]>
Cc: Dmitrii Dolgov <[email protected]>
Cc: German Gomez <[email protected]>
Cc: Huacai Chen <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: James Clark <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: K Prateek Nayak <[email protected]>
Cc: Kajol Jain <[email protected]>
Cc: Kan Liang <[email protected]>
Cc: Leo Yan <[email protected]>
Cc: Li Dong <[email protected]>
Cc: Liam Howlett <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Masami Hiramatsu (Google) <[email protected]>
Cc: Miguel Ojeda <[email protected]>
Cc: Ming Wang <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Nick Terrell <[email protected]>
Cc: Paolo Bonzini <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Ravi Bangoria <[email protected]>
Cc: Sandipan Das <[email protected]>
Cc: Sean Christopherson <[email protected]>
Cc: Steinar H. Gunderson <[email protected]>
Cc: Vincent Whitchurch <[email protected]>
Cc: Wenyu Liu <[email protected]>
Cc: Yang Jihong <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
The die_find_variable_by_addr() is to find a variables in the given DIE
using given (PC-relative) address. Global variables will have a
location expression with DW_OP_addr which has an address so can simply
compare it with the address.
<1><143a7>: Abbrev Number: 2 (DW_TAG_variable)
<143a8> DW_AT_name : loops_per_jiffy
<143ac> DW_AT_type : <0x1cca>
<143b0> DW_AT_external : 1
<143b0> DW_AT_decl_file : 193
<143b1> DW_AT_decl_line : 213
<143b2> DW_AT_location : 9 byte block: 3 b0 46 41 82 ff ff ff ff
(DW_OP_addr: ffffffff824146b0)
Note that the type-offset should be calculated from the base address of
the global variable.
Signed-off-by: Namhyung Kim <[email protected]>
Acked-by: Masami Hiramatsu (Google) <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: Ian Rogers <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Linus Torvalds <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Stephane Eranian <[email protected]>
Cc: [email protected]
Cc: [email protected]
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
Currently, debug messages is output to stderr, add --debug-file option to
support redirection to a specified file.
Some test scenarios:
# perf --list-opts
--help --version --exec-path --html-path --paginate --no-pager --debugfs-dir --buildid-dir --list-cmds --list-opts --debug --debug-file
# perf --debug-file
No path given for --debug-file.
Usage: perf [--version] [--help] [OPTIONS] COMMAND [ARGS]
# perf --debug-file /sys/perf.log record -v true
Open debug file '/sys/perf.log' failed: Permission denied
Usage: perf [--version] [--help] [OPTIONS] COMMAND [ARGS]
# perf --debug-file /tmp/perf.log record -v true
[ perf record: Woken up 1 times to write data ]
[ perf record: Captured and wrote 0.013 MB perf.data (26 samples) ]
# cat /tmp/perf.log
DEBUGINFOD_URLS=
Using CPUID GenuineIntel-6-3E-4
nr_cblocks: 0
affinity: SYS
mmap flush: 1
comp level: 0
mmap size 528384B
Control descriptor is not initialized
mmap size 528384B
Looking at the vmlinux_path (8 entries long)
Using /proc/kcore for kernel data
Using /proc/kallsyms for symbols
symbol:unmap_start file:(null) line:0 offset:0 return:0 lazy:(null)
symbol:unmap_complete file:(null) line:0 offset:0 return:0 lazy:(null)
symbol:map_start file:(null) line:0 offset:0 return:0 lazy:(null)
symbol:map_complete file:(null) line:0 offset:0 return:0 lazy:(null)
symbol:reloc_start file:(null) line:0 offset:0 return:0 lazy:(null)
symbol:reloc_complete file:(null) line:0 offset:0 return:0 lazy:(null)
symbol:init_start file:(null) line:0 offset:0 return:0 lazy:(null)
symbol:init_complete file:(null) line:0 offset:0 return:0 lazy:(null)
symbol:lll_lock_wait_private file:(null) line:0 offset:0 return:0 lazy:(null)
symbol:lll_lock_wait file:(null) line:0 offset:0 return:0 lazy:(null)
symbol:setjmp file:(null) line:0 offset:0 return:0 lazy:(null)
symbol:longjmp file:(null) line:0 offset:0 return:0 lazy:(null)
symbol:longjmp_target file:(null) line:0 offset:0 return:0 lazy:(null)
failed to write feature HYBRID_TOPOLOGY
Signed-off-by: Yang Jihong <[email protected]>
Acked-by: Arnaldo Carvalho de Melo <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Ian Rogers <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
It needs to check all possible information in an instruction. Let's add
a field indicating if the operand has multiple registers. I'll be used
to search type information like in an array access on x86 like:
mov 0x10(%rax,%rbx,8), %rcx
-------------
here
Signed-off-by: Namhyung Kim <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Ian Rogers <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Linus Torvalds <[email protected]>
Cc: Masami Hiramatsu <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Stephane Eranian <[email protected]>
Cc: [email protected]
Cc: [email protected]
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
There is already an existing config value for changing the objdump path,
so instead of having two values that do the same thing, make 'perf test'
use annotate.objdump as well.
Signed-off-by: James Clark <[email protected]>
Acked-by: Namhyung Kim <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Fangrui Song <[email protected]>
Cc: Ian Rogers <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Kan Liang <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Yang Jihong <[email protected]>
Cc: Yonghong Song <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
Add JSON file of T-HEAD C9xx series events.
The event idx (raw value) is summary as following:
event id range | support cpu
0x01 - 0x2a | c906,c910,c920
The event ids are based on the public document of T-HEAD and cover the
c900 series.
These events are the max that c900 series support. Since T-HEAD let
manufacturers decide whether events are usable, the final support of the
perf events is determined by the pmu node of the soc dtb.
Signed-off-by: Inochi Amaoto <[email protected]>
Tested-by: Guo Ren <[email protected]>
Acked-by: Palmer Dabbelt <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Albert Ou <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Chen Wang <[email protected]>
Cc: Ian Rogers <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Jisheng Zhang <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Paul Walmsley <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Wei Fu <[email protected]>
Cc: [email protected]
Link: https://lore.kernel.org/r/IA1PR20MB495325FCF603BAA841E29281BBBAA@IA1PR20MB4953.namprd20.prod.outlook.com
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
Add upi_data_receive_bw metric for skylakex, cascadelakex, icelakex
and sapphirerapids. The metric was added to perfmon metrics in:
https://github.com/intel/perfmon/pull/119
Signed-off-by: Ian Rogers <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Caleb Biggers <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Kan Liang <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Perry Taylor <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
perf data symbol test depends on finding symbol buf1 in perf, and fails if
perf has been stripped and no debug object is available. In that case, skip
the test instead.
Example:
Before:
$ strip tools/perf/perf
$ tools/perf/perf buildid-cache -p `realpath tools/perf/perf`
$ tools/perf/perf test -v 'data symbol'
113: Test data symbol :
--- start ---
test child forked, pid 125646
Recording workload...
[ perf record: Woken up 3 times to write data ]
[ perf record: Captured and wrote 0.577 MB /tmp/__perf_test.perf.data.Jhbdp (7794 samples) ]
Cleaning up files...
test child finished with -1
---- end ----
Test data symbol: FAILED!
After:
$ tools/perf/perf test -v 'data symbol'
113: Test data symbol :
--- start ---
test child forked, pid 125747
perf does not have symbol 'buf1'
perf is missing symbols - skipping test
test child finished with -2
---- end ----
Test data symbol: Skip
Signed-off-by: Adrian Hunter <[email protected]>
Acked-by: Ian Rogers <[email protected]>
Cc: German Gomez <[email protected]>
Cc: James Clark <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Leo Yan <[email protected]>
Cc: Namhyung Kim <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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The perf data symbol test waits 1 second for perf to run and collect data,
which may be too little if perf takes a long time to start up, which has
been noticed on systems with many CPUs. Use existing wait_for_perf_to_start
helper to wait for perf to start.
Signed-off-by: Adrian Hunter <[email protected]>
Acked-by: Ian Rogers <[email protected]>
Cc: German Gomez <[email protected]>
Cc: James Clark <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Leo Yan <[email protected]>
Cc: Namhyung Kim <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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The test "Check branch stack sampling" depends on finding symbol
brstack_bench (and several others) in perf, and fails if perf has been
stripped and no debug object is available. In that case, skip the test
instead.
Example:
Before:
$ strip tools/perf/perf
$ tools/perf/perf buildid-cache -p `realpath tools/perf/perf`
$ tools/perf/perf test -v 'branch stack sampling'
112: Check branch stack sampling :
--- start ---
test child forked, pid 123741
Testing user branch stack sampling
+ grep -E -m1 ^brstack_bench\+[^ ]*/brstack_foo\+[^ ]*/IND_CALL/.*$ /tmp/__perf_test.program.5Dz1U/perf.script
+ cleanup
+ rm -rf /tmp/__perf_test.program.5Dz1U
test child finished with -1
---- end ----
Check branch stack sampling: FAILED!
After:
$ tools/perf/perf test -v 'branch stack sampling'
112: Check branch stack sampling :
--- start ---
test child forked, pid 125157
perf does not have symbol 'brstack_bench'
perf is missing symbols - skipping test
test child finished with -2
---- end ----
Check branch stack sampling: Skip
Signed-off-by: Adrian Hunter <[email protected]>
Acked-by: Ian Rogers <[email protected]>
Cc: German Gomez <[email protected]>
Cc: James Clark <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Leo Yan <[email protected]>
Cc: Namhyung Kim <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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The test "Check Arm64 callgraphs are complete in fp mode" depends on
finding symbol leafloop in perf, and fails if perf has been stripped and no
debug object is available. In that case, skip the test instead.
Signed-off-by: Adrian Hunter <[email protected]>
Acked-by: Ian Rogers <[email protected]>
Cc: German Gomez <[email protected]>
Cc: James Clark <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Leo Yan <[email protected]>
Cc: Namhyung Kim <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
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perf record test depends on finding symbol test_loop in perf, and fails if
perf has been stripped and no debug object is available. In that case, skip
the test instead.
Example:
Note, building with perl support adds option -Wl,-E which causes the
linker to add all (global) symbols to the dynamic symbol table. So the
test_loop symbol, being global, does not get stripped unless NO_LIBPERL=1
Before:
$ make NO_LIBPERL=1 -C tools/perf >/dev/null 2>&1
$ strip tools/perf/perf
$ tools/perf/perf buildid-cache -p `realpath tools/perf/perf`
$ tools/perf/perf test -v 'record tests'
91: perf record tests :
--- start ---
test child forked, pid 118750
Basic --per-thread mode test
Per-thread record [Failed missing output]
Register capture test
Register capture test [Success]
Basic --system-wide mode test
System-wide record [Skipped not supported]
Basic target workload test
Workload record [Failed missing output]
test child finished with -1
---- end ----
perf record tests: FAILED!
After:
$ tools/perf/perf test -v 'record tests'
91: perf record tests :
--- start ---
test child forked, pid 120025
perf does not have symbol 'test_loop'
perf is missing symbols - skipping test
test child finished with -2
---- end ----
perf record tests: Skip
Signed-off-by: Adrian Hunter <[email protected]>
Acked-by: Ian Rogers <[email protected]>
Cc: German Gomez <[email protected]>
Cc: James Clark <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Leo Yan <[email protected]>
Cc: Namhyung Kim <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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perf pipe recording and injection test depends on finding symbol noploop in
perf, and fails if perf has been stripped and no debug object is available.
In that case, skip the test instead.
Example:
Before:
$ strip tools/perf/perf
$ tools/perf/perf buildid-cache -p `realpath tools/perf/perf`
$ tools/perf/perf test -v pipe
86: perf pipe recording and injection test :
--- start ---
test child forked, pid 47734
[ perf record: Woken up 1 times to write data ]
[ perf record: Captured and wrote 0.000 MB - ]
47741 47741 -1 |perf
[ perf record: Woken up 1 times to write data ]
[ perf record: Captured and wrote 0.000 MB - ]
cannot find noploop function in pipe #1
test child finished with -1
---- end ----
perf pipe recording and injection test: FAILED!
After:
$ tools/perf/perf test -v pipe
86: perf pipe recording and injection test :
--- start ---
test child forked, pid 48996
perf does not have symbol 'noploop'
perf is missing symbols - skipping test
test child finished with -2
---- end ----
perf pipe recording and injection test: Skip
Signed-off-by: Adrian Hunter <[email protected]>
Acked-by: Ian Rogers <[email protected]>
Cc: German Gomez <[email protected]>
Cc: James Clark <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Leo Yan <[email protected]>
Cc: Namhyung Kim <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Some shell tests depend on finding symbols for perf itself, and fail if
perf has been stripped and no debug object is available. Add helper
functions to check if perf has a needed symbol. This is preparation for
amending the tests themselves to be skipped if a needed symbol is not
found.
The functions make use of the "Symbols" test which reads and checks symbols
from a dso, perf itself by default. Note the "Symbols" test will find
symbols using the same method as other perf tests, including, for example,
looking in the buildid cache.
An alternative would be to prevent the needed symbols from being stripped,
which seems to work with gcc's externally_visible attribute, but that
attribute is not supported by clang.
Another alternative would be to use option -Wl,-E (which is already used
when perf is built with perl support) which causes the linker to add all
(global) symbols to the dynamic symbol table. Then the required symbols
need only be made global in scope to avoid being strippable. However that
goes beyond what is needed.
Signed-off-by: Adrian Hunter <[email protected]>
Acked-by: Ian Rogers <[email protected]>
Cc: German Gomez <[email protected]>
Cc: James Clark <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Leo Yan <[email protected]>
Cc: Namhyung Kim <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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