| Age | Commit message (Collapse) | Author | Files | Lines |
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":=" usage
perf test "perf script tests" fails as below in systems
with python 3.6
File "/home/athira/linux/tools/perf/tests/shell/../../scripts/python/parallel-perf.py", line 442
if line := p.stdout.readline():
^
SyntaxError: invalid syntax
--- Cleaning up ---
---- end(-1) ----
92: perf script tests: FAILED!
This happens because ":=" is a new syntax that assigns values
to variables as part of a larger expression. This is introduced
from python 3.8 and hence fails in setup with python 3.6
Address this by splitting the large expression and check the
value in two steps:
Previous line: if line := p.stdout.readline():
Current change:
line = p.stdout.readline()
if line:
With patch
./perf test "perf script tests"
93: perf script tests: Ok
Signed-off-by: Athira Rajeev <[email protected]>
Acked-by: Adrian Hunter <[email protected]>
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Signed-off-by: Namhyung Kim <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
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pattern /tmp/perf-%d.map
commit 80d496be89ed ("perf report: Add support for profiling JIT
generated code") added support for profiling JIT generated code.
This patch handles dso's of form "/tmp/perf-$PID.map".
Some of the references doesn't check exactly for same pattern.
some uses "if (!strncmp(dso_name, "/tmp/perf-", 10))". Fix
this by using helper function perf_pid_map_tid and
is_perf_pid_map_name which looks for proper pattern of
form: "/tmp/perf-$PID.map" for these checks.
Signed-off-by: Athira Rajeev <[email protected]>
Reviewed-by: Adrian Hunter <[email protected]>
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Signed-off-by: Namhyung Kim <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
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Perf test for perf probe of function from different CU fails
as below:
./perf test -vv "test perf probe of function from different CU"
116: test perf probe of function from different CU:
--- start ---
test child forked, pid 2679
Failed to find symbol foo in /tmp/perf-uprobe-different-cu-sh.Msa7iy89bx/testfile
Error: Failed to add events.
--- Cleaning up ---
"foo" does not hit any event.
Error: Failed to delete events.
---- end(-1) ----
116: test perf probe of function from different CU : FAILED!
The test does below to probe function "foo" :
# gcc -g -Og -flto -c /tmp/perf-uprobe-different-cu-sh.XniNxNEVT7/testfile-foo.c
-o /tmp/perf-uprobe-different-cu-sh.XniNxNEVT7/testfile-foo.o
# gcc -g -Og -c /tmp/perf-uprobe-different-cu-sh.XniNxNEVT7/testfile-main.c
-o /tmp/perf-uprobe-different-cu-sh.XniNxNEVT7/testfile-main.o
# gcc -g -Og -o /tmp/perf-uprobe-different-cu-sh.XniNxNEVT7/testfile
/tmp/perf-uprobe-different-cu-sh.XniNxNEVT7/testfile-foo.o
/tmp/perf-uprobe-different-cu-sh.XniNxNEVT7/testfile-main.o
# ./perf probe -x /tmp/perf-uprobe-different-cu-sh.XniNxNEVT7/testfile foo
Failed to find symbol foo in /tmp/perf-uprobe-different-cu-sh.XniNxNEVT7/testfile
Error: Failed to add events.
Perf probe fails to find symbol foo in the executable placed in
/tmp/perf-uprobe-different-cu-sh.XniNxNEVT7
Simple reproduce:
# mktemp -d /tmp/perf-checkXXXXXXXXXX
/tmp/perf-checkcWpuLRQI8j
# gcc -g -o test test.c
# cp test /tmp/perf-checkcWpuLRQI8j/
# nm /tmp/perf-checkcWpuLRQI8j/test | grep foo
00000000100006bc T foo
# ./perf probe -x /tmp/perf-checkcWpuLRQI8j/test foo
Failed to find symbol foo in /tmp/perf-checkcWpuLRQI8j/test
Error: Failed to add events.
But it works with any files like /tmp/perf/test. Only for
patterns with "/tmp/perf-", this fails.
Further debugging, commit 80d496be89ed ("perf report: Add support
for profiling JIT generated code") added support for profiling JIT
generated code. This patch handles dso's of form
"/tmp/perf-$PID.map" .
The check used "if (strncmp(self->name, "/tmp/perf-", 10) == 0)"
to match "/tmp/perf-$PID.map". With this commit, any dso in
/tmp/perf- folder will be considered separately for processing
(not only JIT created map files ). Fix this by changing the
string pattern to check for "/tmp/perf-%d.map". Add a helper
function is_perf_pid_map_name to do this check. In "struct dso",
dso->long_name holds the long name of the dso file. Since the
/tmp/perf-$PID.map check uses the complete name, use dso___long_name for
the string name.
With the fix,
# ./perf test "test perf probe of function from different CU"
117: test perf probe of function from different CU : Ok
Fixes: 56cbeacf1435 ("perf probe: Add test for regression introduced by switch to die_get_decl_file()")
Signed-off-by: Athira Rajeev <[email protected]>
Reviewed-by: Chaitanya S Prakash <[email protected]>
Reviewed-by: Adrian Hunter <[email protected]>
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Signed-off-by: Namhyung Kim <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
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The 2 second sleep can cause the test to fail on very slow network file
systems because Perf ends up being killed before it finishes starting
up.
Fix it by making the leafloop workload end after a fixed time like the
other workloads so there is no need to kill it after 2 seconds.
Also remove the 1 second start sampling delay because it is similarly
fragile. Instead, search through all samples for a matching one, rather
than just checking the first sample and hoping it's in the right place.
Fixes: cd6382d82752 ("perf test arm64: Test unwinding using fame-pointer (fp) mode")
Signed-off-by: James Clark <[email protected]>
Acked-by: Namhyung Kim <[email protected]>
Cc: German Gomez <[email protected]>
Cc: Spoorthy S <[email protected]>
Cc: Kajol Jain <[email protected]>
Signed-off-by: Namhyung Kim <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
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When either of these have a shorter version, like 1.8, the expression
that computes the version has a syntax error that can be seen in the
output of make:
expr: syntax error: missing argument after +
Link: https://bugs.gentoo.org/917559
Reported-by: Peter Volkov <[email protected]>
Signed-off-by: Guilherme Amadio <[email protected]>
Reviewed-by: Leo Yan <[email protected]>
Signed-off-by: Namhyung Kim <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
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Needed to add required include directories for the feature detection
to succeed. The header tracefs.h is installed either into the include
directory /usr/include/tracefs/tracefs.h when using the Makefile, or
into /usr/include/libtracefs/tracefs.h when using meson to build
libtracefs. The header tracefs.h uses #include <event-parse.h> from
libtraceevent, so pkg-config needs to pick the correct include directory
for libtracefs and add the one for libtraceevent to succeed.
Note that in baa2ca59ec1e31ccbe3f24ff0368152b36f68720 the variable
LIBTRACEEVENT_DIR was introduced, and now the method to compile against
non-standard locations requires PKG_CONFIG_PATH to be set instead, which
works for both libtraceevent and libtracefs.
Signed-off-by: Guilherme Amadio <[email protected]>
Reviewed-by: Leo Yan <[email protected]>
Signed-off-by: Namhyung Kim <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
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When PMUs have a cpu map in the 'cpus' or 'cpumask' file, perf will
try to open events on those CPUs. ARM doesn't remove offline CPUs
meaning taking a CPU offline will cause perf commands to fail unless a
CPU map is passed on the command line.
More context in:
https://lore.kernel.org/lkml/[email protected]/
Reported-by: Yicong Yang <[email protected]>
Closes: https://lore.kernel.org/lkml/[email protected]/
Signed-off-by: Ian Rogers <[email protected]>
Tested-by: Yicong Yang <[email protected]>
Tested-by: Leo Yan <[email protected]>
Cc: James Clark <[email protected]>
Cc: Suzuki K Poulose <[email protected]>
Cc: Will Deacon <[email protected]>
Cc: Mike Leach <[email protected]>
Cc: Leo Yan <[email protected]>
Cc: [email protected]
Cc: [email protected]
Cc: John Garry <[email protected]>
Signed-off-by: Namhyung Kim <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
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The hard-coded metrics is wrongly calculated on the hybrid machine.
$ perf stat -e cycles,instructions -a sleep 1
Performance counter stats for 'system wide':
18,205,487 cpu_atom/cycles/
9,733,603 cpu_core/cycles/
9,423,111 cpu_atom/instructions/ # 0.52 insn per cycle
4,268,965 cpu_core/instructions/ # 0.23 insn per cycle
The insn per cycle for cpu_core should be 4,268,965 / 9,733,603 = 0.44.
When finding the metric events, the find_stat() doesn't take the PMU
type into account. The cpu_atom/cycles/ is wrongly used to calculate
the IPC of the cpu_core.
In the hard-coded metrics, the events from a different PMU are only
SW_CPU_CLOCK and SW_TASK_CLOCK. They both have the stat type,
STAT_NSECS. Except the SW CLOCK events, check the PMU type as well.
Fixes: 0a57b910807a ("perf stat: Use counts rather than saved_value")
Reported-by: Khalil, Amiri <[email protected]>
Reviewed-by: Ian Rogers <[email protected]>
Signed-off-by: Kan Liang <[email protected]>
Acked-by: Namhyung Kim <[email protected]>
Cc: [email protected]
Signed-off-by: Namhyung Kim <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
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Add counter information necessary for optimizing event grouping the
perf tool.
The most recent RFC patch set using this information:
https://lore.kernel.org/lkml/[email protected]/
The information was added in:
https://github.com/intel/perfmon/commit/475892a9690cb048949e593fe39cee65cd4765e1
and later patches.
Co-authored-by: Weilin Wang <[email protected]>
Co-authored-by: Caleb Biggers <[email protected]>
Signed-off-by: Ian Rogers <[email protected]>
Reviewed-by: Kan Liang <[email protected]>
Cc: Alexandre Torgue <[email protected]>
Cc: Maxime Coquelin <[email protected]>
Signed-off-by: Namhyung Kim <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
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Add counter information necessary for optimizing event grouping the
perf tool.
The most recent RFC patch set using this information:
https://lore.kernel.org/lkml/[email protected]/
The information was added in:
https://github.com/intel/perfmon/commit/475892a9690cb048949e593fe39cee65cd4765e1
and later patches.
Co-authored-by: Weilin Wang <[email protected]>
Co-authored-by: Caleb Biggers <[email protected]>
Signed-off-by: Ian Rogers <[email protected]>
Reviewed-by: Kan Liang <[email protected]>
Cc: Alexandre Torgue <[email protected]>
Cc: Maxime Coquelin <[email protected]>
Signed-off-by: Namhyung Kim <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
|
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Add counter information necessary for optimizing event grouping the
perf tool.
The most recent RFC patch set using this information:
https://lore.kernel.org/lkml/[email protected]/
The information was added in:
https://github.com/intel/perfmon/commit/475892a9690cb048949e593fe39cee65cd4765e1
and later patches.
Co-authored-by: Weilin Wang <[email protected]>
Co-authored-by: Caleb Biggers <[email protected]>
Signed-off-by: Ian Rogers <[email protected]>
Reviewed-by: Kan Liang <[email protected]>
Cc: Alexandre Torgue <[email protected]>
Cc: Maxime Coquelin <[email protected]>
Signed-off-by: Namhyung Kim <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
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Update events from v1.15 to v1.16.
Update TMA metrics from v4.7 to v4.8.
Bring in the event updates v1.16:
https://github.com/intel/perfmon/commit/43f3b8d6f82f3174bd3bffe8587e2179f086d2ce
The TMA 4.8 information was added in:
https://github.com/intel/perfmon/commit/59194d4d90ca50a3fcb2de0d82b9f6fc0c9a5736
Add counter information. The most recent RFC patch set using this
information:
https://lore.kernel.org/lkml/[email protected]/
Co-authored-by: Weilin Wang <[email protected]>
Co-authored-by: Caleb Biggers <[email protected]>
Signed-off-by: Ian Rogers <[email protected]>
Reviewed-by: Kan Liang <[email protected]>
Cc: Alexandre Torgue <[email protected]>
Cc: Maxime Coquelin <[email protected]>
Signed-off-by: Namhyung Kim <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
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Update/remove events as per v1.23:
https://github.com/intel/perfmon/commit/9debd874e1b2b0cca42b9ba2342cacaaace2f0ce
Add counter information necessary for optimizing event grouping the
perf tool.
The most recent RFC patch set using this information:
https://lore.kernel.org/lkml/[email protected]/
The information was added in:
https://github.com/intel/perfmon/commit/475892a9690cb048949e593fe39cee65cd4765e1
and later patches.
Co-authored-by: Weilin Wang <[email protected]>
Co-authored-by: Caleb Biggers <[email protected]>
Signed-off-by: Ian Rogers <[email protected]>
Reviewed-by: Kan Liang <[email protected]>
Cc: Alexandre Torgue <[email protected]>
Cc: Maxime Coquelin <[email protected]>
Signed-off-by: Namhyung Kim <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
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Update events from v1.33 to v1.35.
Update TMA metrics from v4.7 to v4.8.
Bring in the event updates v1.35:
https://github.com/intel/perfmon/commit/c99b60c147b96f40f96dd961abfae54909f47e5f
The TMA 4.8 information was added in:
https://github.com/intel/perfmon/commit/59194d4d90ca50a3fcb2de0d82b9f6fc0c9a5736
Add counter information. The most recent RFC patch set using this
information:
https://lore.kernel.org/lkml/[email protected]/
Adds the event SW_PREFETCH_ACCESS.ANY.
Co-authored-by: Weilin Wang <[email protected]>
Co-authored-by: Caleb Biggers <[email protected]>
Signed-off-by: Ian Rogers <[email protected]>
Reviewed-by: Kan Liang <[email protected]>
Cc: Alexandre Torgue <[email protected]>
Cc: Maxime Coquelin <[email protected]>
Signed-off-by: Namhyung Kim <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
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Update events from v58 to v59.
Update TMA metrics from v4.7 to v4.8.
Bring in the event updates v59:
https://github.com/intel/perfmon/commit/5d36f1835b02f056031a06e777e4bf54a5964930
The TMA 4.8 information was added in:
https://github.com/intel/perfmon/commit/59194d4d90ca50a3fcb2de0d82b9f6fc0c9a5736
Add counter information. The most recent RFC patch set using this
information:
https://lore.kernel.org/lkml/[email protected]/
Adds the event SW_PREFETCH_ACCESS.ANY.
Co-authored-by: Weilin Wang <[email protected]>
Co-authored-by: Caleb Biggers <[email protected]>
Signed-off-by: Ian Rogers <[email protected]>
Reviewed-by: Kan Liang <[email protected]>
Cc: Alexandre Torgue <[email protected]>
Cc: Maxime Coquelin <[email protected]>
Signed-off-by: Namhyung Kim <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
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Add counter information necessary for optimizing event grouping the
perf tool.
The most recent RFC patch set using this information:
https://lore.kernel.org/lkml/[email protected]/
The information was added in:
https://github.com/intel/perfmon/commit/475892a9690cb048949e593fe39cee65cd4765e1
and later patches.
Co-authored-by: Weilin Wang <[email protected]>
Co-authored-by: Caleb Biggers <[email protected]>
Signed-off-by: Ian Rogers <[email protected]>
Reviewed-by: Kan Liang <[email protected]>
Cc: Alexandre Torgue <[email protected]>
Cc: Maxime Coquelin <[email protected]>
Signed-off-by: Namhyung Kim <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
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Update events from v1.02 to v1.04.
Add TMA metrics v4.8.
Bring in the event updates v1.04:
https://github.com/intel/perfmon/commit/0a9546cdf63c8b07f5c33ebf6fe49e6ebec89f86
v1.03:
https://github.com/intel/perfmon/commit/c7dd26ce67ca4477d40fb4b55b6baa0584b3e5d6
The TMA 4.8 information was added in:
https://github.com/intel/perfmon/commit/59194d4d90ca50a3fcb2de0d82b9f6fc0c9a5736
Add counter information. The most recent RFC patch set using this
information:
https://lore.kernel.org/lkml/[email protected]/
New events are:
FP_INST_RETIRED.128B_DP,
FP_INST_RETIRED.128B_SP,
FP_INST_RETIRED.256B_DP,
FP_INST_RETIRED.32B_SP,
FP_INST_RETIRED.64B_DP,
OCR.DEMAND_DATA_RD.L3_HIT.SNOOP_HITM,
OCR.DEMAND_DATA_RD.L3_HIT.SNOOP_HIT_WITH_FWD,
OCR.DEMAND_RFO.L3_HIT.SNOOP_HITM,
OCR.STREAMING_WR.ANY_RESPONSE,
UNC_CHA_TOR_INSERTS.IO_ITOMCACHENEAR_LOCAL,
UNC_CHA_TOR_INSERTS.IO_ITOMCACHENEAR_REMOTE,
UNC_CHA_TOR_INSERTS.IO_ITOM_LOCAL,
UNC_CHA_TOR_INSERTS.IO_ITOM_REMOTE,
UNC_CHA_TOR_INSERTS.IO_MISS,
UNC_CHA_TOR_INSERTS.IO_MISS_ITOM,
UNC_CHA_TOR_INSERTS.IO_MISS_ITOMCACHENEAR,
UNC_CHA_TOR_INSERTS.IO_PCIRDCUR_LOCAL,
UNC_CHA_TOR_INSERTS.IO_PCIRDCUR_REMOTE,
UNC_CXLCM_RxC_PACK_BUF_INSERTS.MEM_DATA,
UNC_CXLDP_TxC_AGF_INSERTS.M2S_DATA.
Co-authored-by: Weilin Wang <[email protected]>
Co-authored-by: Caleb Biggers <[email protected]>
Signed-off-by: Ian Rogers <[email protected]>
Reviewed-by: Kan Liang <[email protected]>
Cc: Alexandre Torgue <[email protected]>
Cc: Maxime Coquelin <[email protected]>
Signed-off-by: Namhyung Kim <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
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Update events from v1.20 to v1.23.
Update TMA metrics from v4.7 to v4.8.
Bring in the event updates v1.23:
https://github.com/intel/perfmon/commit/6ace93281c0f573b90d3f8f624486ad59dde1c93
v1.22:
https://github.com/intel/perfmon/commit/356eba05c07c4d54ed5b92c1164ce00fab545636
The TMA 4.8 information was added in:
https://github.com/intel/perfmon/commit/59194d4d90ca50a3fcb2de0d82b9f6fc0c9a5736
Add counter information. The most recent RFC patch set using this
information:
https://lore.kernel.org/lkml/[email protected]/
New events are:
EXE_ACTIVITY.2_3_PORTS_UTIL,
ICACHE_DATA.STALL_PERIODS,
L2_TRANS.L2_WB,
MEM_TRANS_RETIRED.LOAD_LATENCY_GT_1024,
OFFCORE_REQUESTS.DEMAND_CODE_RD,
OFFCORE_REQUESTS.DEMAND_RFO,
OFFCORE_REQUESTS_OUTSTANDING.CYCLES_WITH_DEMAND_CODE_RD,
OFFCORE_REQUESTS_OUTSTANDING.DEMAND_CODE_RD,
RS.EMPTY_RESOURCE,
SW_PREFETCH_ACCESS.ANY,
UOPS_ISSUED.CYCLES.
Co-authored-by: Weilin Wang <[email protected]>
Co-authored-by: Caleb Biggers <[email protected]>
Signed-off-by: Ian Rogers <[email protected]>
Reviewed-by: Kan Liang <[email protected]>
Cc: Alexandre Torgue <[email protected]>
Cc: Maxime Coquelin <[email protected]>
Signed-off-by: Namhyung Kim <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
|
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Add counter information necessary for optimizing event grouping the
perf tool.
The most recent RFC patch set using this information:
https://lore.kernel.org/lkml/[email protected]/
The information was added in:
https://github.com/intel/perfmon/commit/475892a9690cb048949e593fe39cee65cd4765e1
and later patches.
The TMA 4.8 information was updated in:
https://github.com/intel/perfmon/commit/59194d4d90ca50a3fcb2de0d82b9f6fc0c9a5736
Co-authored-by: Weilin Wang <[email protected]>
Co-authored-by: Caleb Biggers <[email protected]>
Signed-off-by: Ian Rogers <[email protected]>
Reviewed-by: Kan Liang <[email protected]>
Cc: Alexandre Torgue <[email protected]>
Cc: Maxime Coquelin <[email protected]>
Signed-off-by: Namhyung Kim <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
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Update events from v1.02 to v1.03.
Update TMA metrics from v4.7 to v4.8.
Bring in the event updates v1.03:
https://github.com/intel/perfmon/commit/a7c75ffd56c7056494cd3acc2749336cd6363b90
The TMA 4.8 information was added in:
https://github.com/intel/perfmon/commit/59194d4d90ca50a3fcb2de0d82b9f6fc0c9a5736
Add counter information. The most recent RFC patch set using this
information:
https://lore.kernel.org/lkml/[email protected]/
Adds the event SW_PREFETCH_ACCESS.ANY.
Co-authored-by: Weilin Wang <[email protected]>
Co-authored-by: Caleb Biggers <[email protected]>
Signed-off-by: Ian Rogers <[email protected]>
Reviewed-by: Kan Liang <[email protected]>
Cc: Alexandre Torgue <[email protected]>
Cc: Maxime Coquelin <[email protected]>
Signed-off-by: Namhyung Kim <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
|
|
Add counter information necessary for optimizing event grouping the
perf tool.
The most recent RFC patch set using this information:
https://lore.kernel.org/lkml/[email protected]/
The information was added in:
https://github.com/intel/perfmon/commit/475892a9690cb048949e593fe39cee65cd4765e1
and later patches.
Co-authored-by: Weilin Wang <[email protected]>
Co-authored-by: Caleb Biggers <[email protected]>
Signed-off-by: Ian Rogers <[email protected]>
Reviewed-by: Kan Liang <[email protected]>
Cc: Alexandre Torgue <[email protected]>
Cc: Maxime Coquelin <[email protected]>
Signed-off-by: Namhyung Kim <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
|
|
Add counter information necessary for optimizing event grouping the
perf tool.
The most recent RFC patch set using this information:
https://lore.kernel.org/lkml/[email protected]/
The information was added in:
https://github.com/intel/perfmon/commit/475892a9690cb048949e593fe39cee65cd4765e1
and later patches.
Co-authored-by: Weilin Wang <[email protected]>
Co-authored-by: Caleb Biggers <[email protected]>
Signed-off-by: Ian Rogers <[email protected]>
Reviewed-by: Kan Liang <[email protected]>
Cc: Alexandre Torgue <[email protected]>
Cc: Maxime Coquelin <[email protected]>
Signed-off-by: Namhyung Kim <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
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Update events from v1.08 to v1.10.
Bring in the event updates v1.10:
https://github.com/intel/perfmon/commit/3bee3dc150164df0bec5980ca5586930730e5778
v1.09:
https://github.com/intel/perfmon/commit/01c8c99f17a72460b2eaf7efe3495913f36c9d42
Add counter information. The most recent RFC patch set using this
information:
https://lore.kernel.org/lkml/[email protected]/
New events are:
EXE_ACTIVITY.2_3_PORTS_UTIL,
FP_INST_RETIRED.128B_DP,
FP_INST_RETIRED.128B_SP,
FP_INST_RETIRED.256B_DP,
FP_INST_RETIRED.32B_SP,
FP_INST_RETIRED.64B_DP,
FP_VINT_UOPS_EXECUTED.STD,
L2_LINES_OUT.USELESS_HWPF,
L2_RQSTS.SWPF_HIT,
L2_RQSTS.SWPF_MISS,
LOAD_HIT_PREFETCH.SWPF,
MACHINE_CLEARS.ANY,
MACHINE_CLEARS.MRN_NUKE,
MISC_RETIRED.LBR_INSERTS,
SW_PREFETCH_ACCESS.ANY.
The metrics aren't updated as they require retirement latency support
that is added in this series:
https://lore.kernel.org/lkml/[email protected]/
Co-authored-by: Weilin Wang <[email protected]>
Co-authored-by: Caleb Biggers <[email protected]>
Signed-off-by: Ian Rogers <[email protected]>
Reviewed-by: Kan Liang <[email protected]>
Cc: Alexandre Torgue <[email protected]>
Cc: Maxime Coquelin <[email protected]>
Signed-off-by: Namhyung Kim <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
|
|
Add counter information necessary for optimizing event grouping the
perf tool.
The most recent RFC patch set using this information:
https://lore.kernel.org/lkml/[email protected]/
The information was added in:
https://github.com/intel/perfmon/commit/475892a9690cb048949e593fe39cee65cd4765e1
and later patches.
Co-authored-by: Weilin Wang <[email protected]>
Co-authored-by: Caleb Biggers <[email protected]>
Signed-off-by: Ian Rogers <[email protected]>
Reviewed-by: Kan Liang <[email protected]>
Cc: Alexandre Torgue <[email protected]>
Cc: Maxime Coquelin <[email protected]>
Signed-off-by: Namhyung Kim <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
|
|
Add counter information necessary for optimizing event grouping the
perf tool.
The most recent RFC patch set using this information:
https://lore.kernel.org/lkml/[email protected]/
The information was added in:
https://github.com/intel/perfmon/commit/475892a9690cb048949e593fe39cee65cd4765e1
and later patches.
Co-authored-by: Weilin Wang <[email protected]>
Co-authored-by: Caleb Biggers <[email protected]>
Signed-off-by: Ian Rogers <[email protected]>
Reviewed-by: Kan Liang <[email protected]>
Cc: Alexandre Torgue <[email protected]>
Cc: Maxime Coquelin <[email protected]>
Signed-off-by: Namhyung Kim <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
|
|
Add counter information necessary for optimizing event grouping the
perf tool.
The most recent RFC patch set using this information:
https://lore.kernel.org/lkml/[email protected]/
The information was added in:
https://github.com/intel/perfmon/commit/475892a9690cb048949e593fe39cee65cd4765e1
and later patches.
The TMA 4.8 information was updated in:
https://github.com/intel/perfmon/commit/59194d4d90ca50a3fcb2de0d82b9f6fc0c9a5736
Co-authored-by: Weilin Wang <[email protected]>
Co-authored-by: Caleb Biggers <[email protected]>
Signed-off-by: Ian Rogers <[email protected]>
Reviewed-by: Kan Liang <[email protected]>
Cc: Alexandre Torgue <[email protected]>
Cc: Maxime Coquelin <[email protected]>
Signed-off-by: Namhyung Kim <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
|
|
Add counter information necessary for optimizing event grouping the
perf tool.
The most recent RFC patch set using this information:
https://lore.kernel.org/lkml/[email protected]/
The information was added in:
https://github.com/intel/perfmon/commit/475892a9690cb048949e593fe39cee65cd4765e1
and later patches.
The TMA 4.8 information was updated in:
https://github.com/intel/perfmon/commit/59194d4d90ca50a3fcb2de0d82b9f6fc0c9a5736
Co-authored-by: Weilin Wang <[email protected]>
Co-authored-by: Caleb Biggers <[email protected]>
Signed-off-by: Ian Rogers <[email protected]>
Reviewed-by: Kan Liang <[email protected]>
Cc: Alexandre Torgue <[email protected]>
Cc: Maxime Coquelin <[email protected]>
Signed-off-by: Namhyung Kim <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
|
|
Add counter information necessary for optimizing event grouping the
perf tool.
The most recent RFC patch set using this information:
https://lore.kernel.org/lkml/[email protected]/
The information was added in:
https://github.com/intel/perfmon/commit/475892a9690cb048949e593fe39cee65cd4765e1
and later patches.
The TMA 4.8 information was updated in:
https://github.com/intel/perfmon/commit/59194d4d90ca50a3fcb2de0d82b9f6fc0c9a5736
Co-authored-by: Weilin Wang <[email protected]>
Co-authored-by: Caleb Biggers <[email protected]>
Signed-off-by: Ian Rogers <[email protected]>
Reviewed-by: Kan Liang <[email protected]>
Cc: Alexandre Torgue <[email protected]>
Cc: Maxime Coquelin <[email protected]>
Signed-off-by: Namhyung Kim <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
|
|
Update events from v1.24 to v1.26.
Add TMA metrics v4.8.
Bring in the event updates v1.26:
https://github.com/intel/perfmon/commit/c607c739e05f2569f95998cc98e1283f042b4fd1
v1.25:
https://github.com/intel/perfmon/commit/42d996769069921ec06f6fbb600b0c663b9ec5a9
The TMA 4.8 information was added in:
https://github.com/intel/perfmon/commit/59194d4d90ca50a3fcb2de0d82b9f6fc0c9a5736
Adds the event SW_PREFETCH_ACCESS.ANY.
Co-authored-by: Weilin Wang <[email protected]>
Co-authored-by: Caleb Biggers <[email protected]>
Signed-off-by: Ian Rogers <[email protected]>
Reviewed-by: Kan Liang <[email protected]>
Cc: Alexandre Torgue <[email protected]>
Cc: Maxime Coquelin <[email protected]>
Signed-off-by: Namhyung Kim <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
|
|
Update events from v1.21 to v1.22.
Add TMA metrics v4.8.
Bring in the event updates v1.22:
https://github.com/intel/perfmon/commit/e5640646e96d59e3c1c1e0d0100a475220ff1dfe
The TMA 4.8 information was added in:
https://github.com/intel/perfmon/commit/59194d4d90ca50a3fcb2de0d82b9f6fc0c9a5736
Adds the event SW_PREFETCH_ACCESS.ANY.
Co-authored-by: Weilin Wang <[email protected]>
Co-authored-by: Caleb Biggers <[email protected]>
Signed-off-by: Ian Rogers <[email protected]>
Reviewed-by: Kan Liang <[email protected]>
Cc: Alexandre Torgue <[email protected]>
Cc: Maxime Coquelin <[email protected]>
Signed-off-by: Namhyung Kim <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
|
|
Add counter information necessary for optimizing event grouping the
perf tool.
The most recent RFC patch set using this information:
https://lore.kernel.org/lkml/[email protected]/
The information was added in:
https://github.com/intel/perfmon/commit/475892a9690cb048949e593fe39cee65cd4765e1
and later patches.
The TMA 4.8 information was updated in:
https://github.com/intel/perfmon/commit/59194d4d90ca50a3fcb2de0d82b9f6fc0c9a5736
Co-authored-by: Weilin Wang <[email protected]>
Co-authored-by: Caleb Biggers <[email protected]>
Signed-off-by: Ian Rogers <[email protected]>
Reviewed-by: Kan Liang <[email protected]>
Cc: Alexandre Torgue <[email protected]>
Cc: Maxime Coquelin <[email protected]>
Signed-off-by: Namhyung Kim <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
|
|
Add counter information necessary for optimizing event grouping the
perf tool.
The most recent RFC patch set using this information:
https://lore.kernel.org/lkml/[email protected]/
The information was added in:
https://github.com/intel/perfmon/commit/475892a9690cb048949e593fe39cee65cd4765e1
and later patches.
Co-authored-by: Weilin Wang <[email protected]>
Co-authored-by: Caleb Biggers <[email protected]>
Signed-off-by: Ian Rogers <[email protected]>
Reviewed-by: Kan Liang <[email protected]>
Cc: Alexandre Torgue <[email protected]>
Cc: Maxime Coquelin <[email protected]>
Signed-off-by: Namhyung Kim <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
|
|
Update events from v1.01 to v1.02.
Bring in the event updates v1.02:
https://github.com/intel/perfmon/commit/0ff9f681bd07d0e84026c52f4941d21b1cd4c171
Add counter information. The most recent RFC patch set using this
information:
https://lore.kernel.org/lkml/[email protected]/
There are over 1000 new events.
Co-authored-by: Weilin Wang <[email protected]>
Co-authored-by: Caleb Biggers <[email protected]>
Signed-off-by: Ian Rogers <[email protected]>
Reviewed-by: Kan Liang <[email protected]>
Cc: Alexandre Torgue <[email protected]>
Cc: Maxime Coquelin <[email protected]>
Signed-off-by: Namhyung Kim <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
|
|
Update events from v1.02 to v1.03.
Add TMA metrics v4.8.
Bring in the event updates v1.03:
https://github.com/intel/perfmon/commit/5ec7a252d0f6ec461f80cc397c9ac25abcd9184f
The TMA 4.8 information was added in:
https://github.com/intel/perfmon/commit/59194d4d90ca50a3fcb2de0d82b9f6fc0c9a5736
New events are:
FP_INST_RETIRED.128B_DP,
FP_INST_RETIRED.128B_SP,
FP_INST_RETIRED.256B_DP,
FP_INST_RETIRED.32B_SP,
FP_INST_RETIRED.64B_DP,
OCR.DEMAND_DATA_RD.L3_HIT.SNOOP_HITM,
OCR.DEMAND_DATA_RD.L3_HIT.SNOOP_HIT_WITH_FWD,
OCR.DEMAND_RFO.L3_HIT.SNOOP_HITM,
OCR.STREAMING_WR.ANY_RESPONSE.
Co-authored-by: Weilin Wang <[email protected]>
Co-authored-by: Caleb Biggers <[email protected]>
Signed-off-by: Ian Rogers <[email protected]>
Reviewed-by: Kan Liang <[email protected]>
Cc: Alexandre Torgue <[email protected]>
Cc: Maxime Coquelin <[email protected]>
Signed-off-by: Namhyung Kim <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
|
|
Add counter information necessary for optimizing event grouping the
perf tool.
The most recent RFC patch set using this information:
https://lore.kernel.org/lkml/[email protected]/
The information was added in:
https://github.com/intel/perfmon/commit/475892a9690cb048949e593fe39cee65cd4765e1
and later patches.
Co-authored-by: Weilin Wang <[email protected]>
Co-authored-by: Caleb Biggers <[email protected]>
Signed-off-by: Ian Rogers <[email protected]>
Reviewed-by: Kan Liang <[email protected]>
Cc: Alexandre Torgue <[email protected]>
Cc: Maxime Coquelin <[email protected]>
Signed-off-by: Namhyung Kim <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
|
|
Add counter information necessary for optimizing event grouping the
perf tool.
The most recent RFC patch set using this information:
https://lore.kernel.org/lkml/[email protected]/
The information was added in:
https://github.com/intel/perfmon/commit/475892a9690cb048949e593fe39cee65cd4765e1
and later patches.
Co-authored-by: Weilin Wang <[email protected]>
Co-authored-by: Caleb Biggers <[email protected]>
Signed-off-by: Ian Rogers <[email protected]>
Reviewed-by: Kan Liang <[email protected]>
Cc: Alexandre Torgue <[email protected]>
Cc: Maxime Coquelin <[email protected]>
Signed-off-by: Namhyung Kim <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
|
|
Update events from v1.06 to v1.09.
Add TMA metrics v4.8.
Bring in the event updates v1.09:
https://github.com/intel/perfmon/commit/3fd5892bb4aece9c1e5c17630570d0462838e85d
v1.08:
https://github.com/intel/perfmon/commit/54525c4508f4a1ce4a8b854aa808a4ee2fb5930b
The TMA 4.8 information was added in:
https://github.com/intel/perfmon/commit/59194d4d90ca50a3fcb2de0d82b9f6fc0c9a5736
New events are:
EXE_ACTIVITY.2_3_PORTS_UTIL,
ICACHE_DATA.STALL_PERIODS,
L2_TRANS.L2_WB,
MEM_TRANS_RETIRED.LOAD_LATENCY_GT_1024,
OFFCORE_REQUESTS.DEMAND_CODE_RD,
OFFCORE_REQUESTS.DEMAND_RFO,
OFFCORE_REQUESTS_OUTSTANDING.CYCLES_WITH_DEMAND_CODE_RD,
OFFCORE_REQUESTS_OUTSTANDING.DEMAND_CODE_RD,
RS.EMPTY_RESOURCE,
SW_PREFETCH_ACCESS.ANY,
UNC_IIO_BANDWIDTH_OUT.PART[0-7]_FREERUN,
UOPS_ISSUED.CYCLES.
Co-authored-by: Weilin Wang <[email protected]>
Co-authored-by: Caleb Biggers <[email protected]>
Signed-off-by: Ian Rogers <[email protected]>
Reviewed-by: Kan Liang <[email protected]>
Cc: Alexandre Torgue <[email protected]>
Cc: Maxime Coquelin <[email protected]>
Signed-off-by: Namhyung Kim <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
|
|
Update events from v1.04 to v1.05. Bring in event updates from:
https://github.com/intel/perfmon/commit/fb91e1851ca40a5b443e2c3cd79bc7fc34c8237e
The most recent RFC patch set using this information:
https://lore.kernel.org/lkml/[email protected]/
The information was added in:
https://github.com/intel/perfmon/commit/475892a9690cb048949e593fe39cee65cd4765e1
and later patches.
Co-authored-by: Weilin Wang <[email protected]>
Co-authored-by: Caleb Biggers <[email protected]>
Signed-off-by: Ian Rogers <[email protected]>
Reviewed-by: Kan Liang <[email protected]>
Cc: Alexandre Torgue <[email protected]>
Cc: Maxime Coquelin <[email protected]>
Signed-off-by: Namhyung Kim <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
|
|
Update events from v1.21 to v1.22.
Bring in the event updates v1.22
https://github.com/intel/perfmon/commit/013877729c4ed96427932ca48722bc3bfd2a0075
The TMA 4.8 information was updated in:
https://github.com/intel/perfmon/commit/59194d4d90ca50a3fcb2de0d82b9f6fc0c9a5736
New events are:
SW_PREFETCH_ACCESS.ANY
Co-authored-by: Weilin Wang <[email protected]>
Co-authored-by: Caleb Biggers <[email protected]>
Signed-off-by: Ian Rogers <[email protected]>
Reviewed-by: Kan Liang <[email protected]>
Cc: Alexandre Torgue <[email protected]>
Cc: Maxime Coquelin <[email protected]>
Signed-off-by: Namhyung Kim <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
|
|
Add counter information necessary for optimizing event grouping the
perf tool.
The most recent RFC patch set using this information:
https://lore.kernel.org/lkml/[email protected]/
The information was added in:
https://github.com/intel/perfmon/commit/475892a9690cb048949e593fe39cee65cd4765e1
and later patches.
The TMA 4.8 information was updated in:
https://github.com/intel/perfmon/commit/59194d4d90ca50a3fcb2de0d82b9f6fc0c9a5736
Co-authored-by: Weilin Wang <[email protected]>
Co-authored-by: Caleb Biggers <[email protected]>
Signed-off-by: Ian Rogers <[email protected]>
Reviewed-by: Kan Liang <[email protected]>
Cc: Alexandre Torgue <[email protected]>
Cc: Maxime Coquelin <[email protected]>
Signed-off-by: Namhyung Kim <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
|
|
Add counter information necessary for optimizing event grouping the
perf tool.
The most recent RFC patch set using this information:
https://lore.kernel.org/lkml/[email protected]/
The information was added in:
https://github.com/intel/perfmon/commit/475892a9690cb048949e593fe39cee65cd4765e1
and later patches.
The TMA 4.8 information was updated in:
https://github.com/intel/perfmon/commit/59194d4d90ca50a3fcb2de0d82b9f6fc0c9a5736
Co-authored-by: Weilin Wang <[email protected]>
Co-authored-by: Caleb Biggers <[email protected]>
Signed-off-by: Ian Rogers <[email protected]>
Reviewed-by: Kan Liang <[email protected]>
Cc: Alexandre Torgue <[email protected]>
Cc: Maxime Coquelin <[email protected]>
Signed-off-by: Namhyung Kim <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
|
|
Add counter information necessary for optimizing event grouping the
perf tool.
The most recent RFC patch set using this information:
https://lore.kernel.org/lkml/[email protected]/
The information was added in:
https://github.com/intel/perfmon/commit/475892a9690cb048949e593fe39cee65cd4765e1
and later patches.
The TMA 4.8 information was updated in:
https://github.com/intel/perfmon/commit/59194d4d90ca50a3fcb2de0d82b9f6fc0c9a5736
Co-authored-by: Weilin Wang <[email protected]>
Co-authored-by: Caleb Biggers <[email protected]>
Signed-off-by: Ian Rogers <[email protected]>
Reviewed-by: Kan Liang <[email protected]>
Cc: Alexandre Torgue <[email protected]>
Cc: Maxime Coquelin <[email protected]>
Signed-off-by: Namhyung Kim <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
|
|
Add counter information necessary for optimizing event grouping the
perf tool.
The most recent RFC patch set using this information:
https://lore.kernel.org/lkml/[email protected]/
The information was added in:
https://github.com/intel/perfmon/commit/475892a9690cb048949e593fe39cee65cd4765e1
and later patches.
Co-authored-by: Weilin Wang <[email protected]>
Co-authored-by: Caleb Biggers <[email protected]>
Signed-off-by: Ian Rogers <[email protected]>
Reviewed-by: Kan Liang <[email protected]>
Cc: Alexandre Torgue <[email protected]>
Cc: Maxime Coquelin <[email protected]>
Signed-off-by: Namhyung Kim <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
|
|
Update events from v1.24 to v1.27.
Update e-core TMA metrics to v3.6.
Bring in the event updates v1.27:
https://github.com/intel/perfmon/commit/ea4f309a04c50ca77a00da2db130fd7cf06db978
v1.26:
https://github.com/intel/perfmon/commit/0052e68d24d9873d5ff22363677794fa3eb05313
The e-core TMA 3.6 information was updated in:
https://github.com/intel/perfmon/commit/d9c2faa70bafe03129dc10f9fe414ef03a95acd9
New events are:
MEM_UOPS_RETIRED.LOCK_LOADS,
SERIALIZATION.C01_MS_SCB,
UOPS_ISSUED.ANY.
Co-authored-by: Weilin Wang <[email protected]>
Co-authored-by: Caleb Biggers <[email protected]>
Signed-off-by: Ian Rogers <[email protected]>
Reviewed-by: Kan Liang <[email protected]>
Cc: Alexandre Torgue <[email protected]>
Cc: Maxime Coquelin <[email protected]>
Signed-off-by: Namhyung Kim <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
|
|
Update events from v1.24 to v1.27.
Update p-core TMA metrics from v4.7 to v4.8, and the e-core TMA
metrics to v3.6.
Bring in the event updates v1.27:
https://github.com/intel/perfmon/commit/ea4f309a04c50ca77a00da2db130fd7cf06db978
v1.26:
https://github.com/intel/perfmon/commit/0052e68d24d9873d5ff22363677794fa3eb05313
The p-core TMA 4.8 information was updated in:
https://github.com/intel/perfmon/commit/59194d4d90ca50a3fcb2de0d82b9f6fc0c9a5736
And e-core in:
https://github.com/intel/perfmon/commit/d9c2faa70bafe03129dc10f9fe414ef03a95acd9
New events are:
EXE_ACTIVITY.2_3_PORTS_UTIL,
ICACHE_DATA.STALL_PERIODS,
L2_TRANS.L2_WB,
MEM_TRANS_RETIRED.LOAD_LATENCY_GT_1024,
MEM_UOPS_RETIRED.LOCK_LOADS,
OFFCORE_REQUESTS.DEMAND_CODE_RD,
OFFCORE_REQUESTS.DEMAND_RFO,
OFFCORE_REQUESTS_OUTSTANDING.CYCLES_WITH_DEMAND_CODE_RD,
OFFCORE_REQUESTS_OUTSTANDING.DEMAND_CODE_RD,
RS.EMPTY_RESOURCE,
SERIALIZATION.C01_MS_SCB,
SW_PREFETCH_ACCESS.ANY,
UOPS_ISSUED.ANY,
UOPS_ISSUED.CYCLES
Co-authored-by: Weilin Wang <[email protected]>
Co-authored-by: Caleb Biggers <[email protected]>
Signed-off-by: Ian Rogers <[email protected]>
Reviewed-by: Kan Liang <[email protected]>
Cc: Alexandre Torgue <[email protected]>
Cc: Maxime Coquelin <[email protected]>
Signed-off-by: Namhyung Kim <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
|
|
Add a perf man page document that describes how to exploit AMD IBS with
Linux perf. Brief intro about IBS and simple one-liner examples will help
naive users to get started. This is not meant to be an exhaustive IBS
guide. User should refer latest AMD64 Architecture Programmer's Manual
for detailed description of IBS.
Usage:
$ man perf-amd-ibs
Signed-off-by: Ravi Bangoria <[email protected]>
Reviewed-by: Arnaldo Carvalho de Melo <[email protected]>
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Signed-off-by: Namhyung Kim <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
|
|
debuginfo is not present
Running "perftool-testsuite_probe" fails as below:
./perf test -v "perftool-testsuite_probe"
83: perftool-testsuite_probe : FAILED
There are three fails:
1. Regexp not found: "\s*probe:inode_permission(?:_\d+)?\s+\(on inode_permission(?:[:\+][0-9A-Fa-f]+)?@.+\)"
-- [ FAIL ] -- perf_probe :: test_adding_kernel :: listing added probe :: perf probe -l (output regexp parsing)
2. Regexp not found: "probe:vfs_mknod"
Regexp not found: "probe:vfs_create"
Regexp not found: "probe:vfs_rmdir"
Regexp not found: "probe:vfs_link"
Regexp not found: "probe:vfs_write"
-- [ FAIL ] -- perf_probe :: test_adding_kernel :: wildcard adding support (command exitcode + output regexp parsing)
3. Regexp not found: "Failed to find"
Regexp not found: "somenonexistingrandomstuffwhichisalsoprettylongorevenlongertoexceed64"
Regexp not found: "in this function|at this address"
Line did not match any pattern: "The /boot/vmlinux file has no debug information."
Line did not match any pattern: "Rebuild with CONFIG_DEBUG_INFO=y, or install an appropriate debuginfo package."
These three tests depends on kernel debug info.
1. Fail 1 expects file name along with probe which needs debuginfo
2. Fail 2 :
perf probe -nf --max-probes=512 -a 'vfs_* $params'
Debuginfo-analysis is not supported.
Error: Failed to add events.
3. Fail 3 :
perf probe 'vfs_read somenonexistingrandomstuffwhichisalsoprettylongorevenlongertoexceed64'
Debuginfo-analysis is not supported.
Error: Failed to add events.
There is already helper function skip_if_no_debuginfo in
lib/probe_vfs_getname.sh which does perf probe and returns
"2" if debug info is not present. Use the skip_if_no_debuginfo
function and skip only the three tests which needs debuginfo
based on the result.
With the patch:
83: perftool-testsuite_probe:
--- start ---
test child forked, pid 3927
-- [ PASS ] -- perf_probe :: test_adding_kernel :: adding probe inode_permission ::
-- [ PASS ] -- perf_probe :: test_adding_kernel :: adding probe inode_permission :: -a
-- [ PASS ] -- perf_probe :: test_adding_kernel :: adding probe inode_permission :: --add
-- [ PASS ] -- perf_probe :: test_adding_kernel :: listing added probe :: perf list
Regexp not found: "\s*probe:inode_permission(?:_\d+)?\s+\(on inode_permission(?:[:\+][0-9A-Fa-f]+)?@.+\)"
-- [ SKIP ] -- perf_probe :: test_adding_kernel :: 2 2 Skipped due to missing debuginfo :: testcase skipped
-- [ PASS ] -- perf_probe :: test_adding_kernel :: using added probe
-- [ PASS ] -- perf_probe :: test_adding_kernel :: deleting added probe
-- [ PASS ] -- perf_probe :: test_adding_kernel :: listing removed probe (should NOT be listed)
-- [ PASS ] -- perf_probe :: test_adding_kernel :: dry run :: adding probe
-- [ PASS ] -- perf_probe :: test_adding_kernel :: force-adding probes :: first probe adding
-- [ PASS ] -- perf_probe :: test_adding_kernel :: force-adding probes :: second probe adding (without force)
-- [ PASS ] -- perf_probe :: test_adding_kernel :: force-adding probes :: second probe adding (with force)
-- [ PASS ] -- perf_probe :: test_adding_kernel :: using doubled probe
-- [ PASS ] -- perf_probe :: test_adding_kernel :: removing multiple probes
Regexp not found: "probe:vfs_mknod"
Regexp not found: "probe:vfs_create"
Regexp not found: "probe:vfs_rmdir"
Regexp not found: "probe:vfs_link"
Regexp not found: "probe:vfs_write"
-- [ SKIP ] -- perf_probe :: test_adding_kernel :: 2 2 Skipped due to missing debuginfo :: testcase skipped
Regexp not found: "Failed to find"
Regexp not found: "somenonexistingrandomstuffwhichisalsoprettylongorevenlongertoexceed64"
Regexp not found: "in this function|at this address"
Line did not match any pattern: "The /boot/vmlinux file has no debug information."
Line did not match any pattern: "Rebuild with CONFIG_DEBUG_INFO=y, or install an appropriate debuginfo package."
-- [ SKIP ] -- perf_probe :: test_adding_kernel :: 2 2 Skipped due to missing debuginfo :: testcase skipped
-- [ PASS ] -- perf_probe :: test_adding_kernel :: function with retval :: add
-- [ PASS ] -- perf_probe :: test_adding_kernel :: function with retval :: record
-- [ PASS ] -- perf_probe :: test_adding_kernel :: function argument probing :: script
## [ PASS ] ## perf_probe :: test_adding_kernel SUMMARY
---- end(0) ----
83: perftool-testsuite_probe : Ok
Only the three specific tests are skipped and remaining
ran successfully.
Signed-off-by: Athira Rajeev <[email protected]>
Reviewed-by: James Clark <[email protected]>
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Signed-off-by: Namhyung Kim <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
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So that it can skip events with no sample according to the config value.
This can omit the dummy event in the output of perf report --group.
An example output:
$ sudo perf mem record -a sleep 1
$ sudo perf report --group
Before)
#
# Samples: 232 of events 'cpu/mem-loads,ldlat=30/P, cpu/mem-stores/P, dummy:u'
# Event count (approx.): 3089861
#
# Overhead Command Shared Object Symbol
# ........................ ........... ................. .....................................
#
9.29% 0.00% 0.00% swapper [kernel.kallsyms] [k] update_blocked_averages
5.26% 0.15% 0.00% swapper [kernel.kallsyms] [k] __update_load_avg_se
4.15% 0.00% 0.00% perf-exec [kernel.kallsyms] [k] slab_update_freelist.isra.0
3.87% 0.00% 0.00% perf-exec [kernel.kallsyms] [k] memcg_slab_post_alloc_hook
3.79% 0.17% 0.00% swapper [kernel.kallsyms] [k] enqueue_task_fair
3.63% 0.00% 0.00% sleep [kernel.kallsyms] [k] next_uptodate_page
2.86% 0.00% 0.00% swapper [kernel.kallsyms] [k] __update_load_avg_cfs_rq
2.78% 0.00% 0.00% swapper [kernel.kallsyms] [k] __schedule
2.34% 0.00% 0.00% swapper [kernel.kallsyms] [k] intel_idle
2.32% 0.97% 0.00% swapper [kernel.kallsyms] [k] psi_group_change
After)
#
# Samples: 232 of events 'cpu/mem-loads,ldlat=30/P, cpu/mem-stores/P'
# Event count (approx.): 3089861
#
# Overhead Command Shared Object Symbol
# ................ ........... ................. .....................................
#
9.29% 0.00% swapper [kernel.kallsyms] [k] update_blocked_averages
5.26% 0.15% swapper [kernel.kallsyms] [k] __update_load_avg_se
4.15% 0.00% perf-exec [kernel.kallsyms] [k] slab_update_freelist.isra.0
3.87% 0.00% perf-exec [kernel.kallsyms] [k] memcg_slab_post_alloc_hook
3.79% 0.17% swapper [kernel.kallsyms] [k] enqueue_task_fair
3.63% 0.00% sleep [kernel.kallsyms] [k] next_uptodate_page
2.86% 0.00% swapper [kernel.kallsyms] [k] __update_load_avg_cfs_rq
2.78% 0.00% swapper [kernel.kallsyms] [k] __schedule
2.34% 0.00% swapper [kernel.kallsyms] [k] intel_idle
2.32% 0.97% swapper [kernel.kallsyms] [k] psi_group_change
Now it doesn't have a column for the dummy event.
Tested-by: Arnaldo Carvalho de Melo <[email protected]>
Signed-off-by: Namhyung Kim <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
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Add the skip_empty flag to symbol_conf and set the value from the report
command to preserve the existing behavior. This makes the code simpler
and will be needed other code which is hard to add a new argument.
Tested-by: Arnaldo Carvalho de Melo <[email protected]>
Signed-off-by: Namhyung Kim <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
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The struct hpp_fmt_data is to keep the values for each group members so
it doesn't need to check the event index in the group.
Tested-by: Arnaldo Carvalho de Melo <[email protected]>
Signed-off-by: Namhyung Kim <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
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