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It is to be displayed in the single cacheline output:
tid
It's a wrapper for global sort_thread sort entry with c2c specific
header.
Signed-off-by: Jiri Olsa <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: David Ahern <[email protected]>
Cc: Don Zickus <[email protected]>
Cc: Joe Mario <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: http://lkml.kernel.org/n/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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It is to be displayed in the single cacheline output:
pid
We currently don't have a single 'pid' sort/display entry, which would
output just pid number, hence adding it into c2c code.
Signed-off-by: Jiri Olsa <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: David Ahern <[email protected]>
Cc: Don Zickus <[email protected]>
Cc: Joe Mario <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: http://lkml.kernel.org/n/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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They are to be displayed in the main cachelines overall output:
dram_lcl, dram_rmt
They display DRAM rmt/lcl access numbers for specific cacheline.
Signed-off-by: Jiri Olsa <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: David Ahern <[email protected]>
Cc: Don Zickus <[email protected]>
Cc: Joe Mario <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: http://lkml.kernel.org/n/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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They are to be displayed in the single cacheline output:
percent_rmt_hitm, percent_lcl_hitm, percent_stores_l1hit, percent_stores_l1miss
They display percentage of HITMs/stores for specific offset in the
cacheline.
Signed-off-by: Jiri Olsa <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: David Ahern <[email protected]>
Cc: Don Zickus <[email protected]>
Cc: Joe Mario <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: http://lkml.kernel.org/n/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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It is to be displayed in the main cachelines overall output:
percent_hitm
It displays HITMs percentage for cacheline.
It counts remote HITMs at the moment, but it is changed later to support
local as well, based on the sort configuration.
Signed-off-by: Jiri Olsa <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: David Ahern <[email protected]>
Cc: Don Zickus <[email protected]>
Cc: Joe Mario <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: http://lkml.kernel.org/n/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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It is to be displayed in the main cachelines overall output:
tot_loads
It displays sum of all load accesses for cacheline.
Signed-off-by: Jiri Olsa <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: David Ahern <[email protected]>
Cc: Don Zickus <[email protected]>
Cc: Joe Mario <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: http://lkml.kernel.org/n/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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It is to be displayed in the main cachelines overall output:
tot_recs
It displays sum of all cachelines accesses.
Signed-off-by: Jiri Olsa <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: David Ahern <[email protected]>
Cc: Don Zickus <[email protected]>
Cc: Joe Mario <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: http://lkml.kernel.org/n/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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It is to be displayed in the main cachelines overall output:
ld_llcmiss
It displays bare number of LLC misses for cacheline.
Signed-off-by: Jiri Olsa <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: David Ahern <[email protected]>
Cc: Don Zickus <[email protected]>
Cc: Joe Mario <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: http://lkml.kernel.org/n/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Add 2 LLC load related dimension key wrappers.
They are to be displayed in the main cachelines overall output:
ld_lclhit, ld_rmthit
They display bare numbers of LLC and remote loads for cacheline.
Signed-off-by: Jiri Olsa <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: David Ahern <[email protected]>
Cc: Don Zickus <[email protected]>
Cc: Joe Mario <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: http://lkml.kernel.org/n/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Add 3 loads related dimension key wrappers.
They are to be displayed in the main cachelines overall output:
ld_fbhit, ld_l1hit, ld_l2hit
They all display bare numbers of loads for
FB (Fill Buffer), L1 and L2 cache.
Signed-off-by: Jiri Olsa <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: David Ahern <[email protected]>
Cc: Don Zickus <[email protected]>
Cc: Joe Mario <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: http://lkml.kernel.org/n/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Add 5 stores related dimension key wrappers.
First 3 are to be displayed in the main cachelines overall output:
stores, stores_l1hit, stores_l1miss
The latter 2 are to be displayed within single cacheline output:
cl_stores_l1hit, cl_stores_l1miss
They all display bare numbers of stores for cacheline or its related
offsets.
Signed-off-by: Jiri Olsa <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: David Ahern <[email protected]>
Cc: Don Zickus <[email protected]>
Cc: Joe Mario <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: http://lkml.kernel.org/n/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Adding 5 hitm related dimension key wrappers.
First 3 are to be displayed in the main cachelines overall output:
tot_hitm, lcl_hitm, rmt_hitm
The latter 2 are to be displayed within single cacheline output:
cl_rmt_hitm, cl_lcl_hitm
They all display bare numbers of remote/local/total HITMs for cacheline
or its related offsets.
Signed-off-by: Jiri Olsa <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: David Ahern <[email protected]>
Cc: Don Zickus <[email protected]>
Cc: Joe Mario <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: http://lkml.kernel.org/n/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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It displays the code address (as hex number) responsible for the
accesses.
Using c2c wrapper to standard 'symbol_iaddr' object to define own header
and simple (just address) code address output.
Signed-off-by: Jiri Olsa <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: David Ahern <[email protected]>
Cc: Don Zickus <[email protected]>
Cc: Joe Mario <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: http://lkml.kernel.org/n/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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It displays cacheline offset as hex number.
Signed-off-by: Jiri Olsa <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: David Ahern <[email protected]>
Cc: Don Zickus <[email protected]>
Cc: Joe Mario <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: http://lkml.kernel.org/n/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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It displays cacheline address as hex number.
Using c2c wrapper to standard 'dcacheline' object to defined own header
and simple (just address) cacheline output.
Signed-off-by: Jiri Olsa <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: David Ahern <[email protected]>
Cc: Don Zickus <[email protected]>
Cc: Joe Mario <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Adding helping macros to define header objects. It will be used in
following patches, that add new dimensions.
The c2c report will support 2 line headers, hence we only define
line[0/1] in macros.
Signed-off-by: Jiri Olsa <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: David Ahern <[email protected]>
Cc: Don Zickus <[email protected]>
Cc: Joe Mario <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Decoding and storing c2c_stats for each hist entry. Changing related
function to work with c2c_* objects.
Signed-off-by: Jiri Olsa <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: David Ahern <[email protected]>
Cc: Don Zickus <[email protected]>
Cc: Joe Mario <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
[ Add '.nr_entries = 0' to the c2c_stats initialization to fix the build on older distros ]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Store cacheline related entries in nested hist object for each cacheline
data. Nested entries are sorted by 'offset' within related cacheline.
We will allow specific sort keys to be configured for nested cacheline
data entries in following patches.
Signed-off-by: Jiri Olsa <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: David Ahern <[email protected]>
Cc: Don Zickus <[email protected]>
Cc: Joe Mario <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
[ he__get_hists() should return NULL when c2c_hists__init() fails ]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Adding basic sample processing specific hist_entry allocation callbacks
(via hists__add_entry_ops).
Overloading 'struct hist_entry' object with new 'struct c2c_hist_entry'.
The new hist entry object will carry specific stats and nested hists
objects.
Signed-off-by: Jiri Olsa <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: David Ahern <[email protected]>
Cc: Don Zickus <[email protected]>
Cc: Joe Mario <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Fallback to standard dimensions in case we don't find the dimension
within c2c ones.
Signed-off-by: Jiri Olsa <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: David Ahern <[email protected]>
Cc: Don Zickus <[email protected]>
Cc: Joe Mario <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Allow to reuse 'struct sort_entry' objects within c2c dimension support.
In case the 'struct sort_entry' object meets the need of c2c report we
will use it directly in following patches.
Signed-off-by: Jiri Olsa <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: David Ahern <[email protected]>
Cc: Don Zickus <[email protected]>
Cc: Joe Mario <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Adding bare bones of dimension support for c2c report.
Main interface functions are:
c2c_hists__init
c2c_hists__reinit
which re/initialize 'struct c2c_hists' object with sort/display entries
string, in a similar way that setup_sorting function does.
We overload the dimension to provide multi line header support for
sort/display entries.
Also we overload base 'struct perf_hpp_fmt' object with 'struct c2c_fmt'
to define c2c specific functions to deal with multi line headers and
spans.
Signed-off-by: Jiri Olsa <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: David Ahern <[email protected]>
Cc: Don Zickus <[email protected]>
Cc: Joe Mario <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Adding c2c report subcommand. It reads the perf.data and displays shared
data analysis.
This patch adds report basic wirings. It gets fully implemented in
following patches.
Signed-off-by: Jiri Olsa <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: David Ahern <[email protected]>
Cc: Don Zickus <[email protected]>
Cc: Joe Mario <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Adding c2c record subcommand. It setups options related to HITM
cacheline analysis and calls standard perf record command.
$ sudo perf c2c record -v -- -a
calling: record -W -d --sample-cpu -e cpu/mem-loads,ldlat=30/P -e cpu/mem-stores/P -a
...
It produces perf.data, which is to be reported by perf c2c report, that
comes in following patches.
Details are described in the man page, which is added in one of the
following patches.
Committer notes:
Testing it:
# perf c2c record -a sleep 1
[ perf record: Woken up 1 times to write data ]
[ perf record: Captured and wrote 5.050 MB perf.data (412 samples) ]
# ls -la perf.data
-rw-------. 1 root root 5301752 Oct 4 13:32 perf.data
# perf evlist
cpu/mem-loads,ldlat=30/P
cpu/mem-stores/P
# perf evlist -v
cpu/mem-loads,ldlat=30/P: type: 4, size: 112, config: 0x1cd, { sample_period, sample_freq }: 4000, sample_type: IP|TID|TIME|ADDR|ID|CPU|PERIOD|DATA_SRC|WEIGHT, read_format: ID, disabled: 1, inherit: 1, mmap: 1, comm: 1, freq: 1, task: 1, precise_ip: 3, mmap_data: 1, sample_id_all: 1, mmap2: 1, comm_exec: 1, { bp_addr, config1 }: 0x1f
cpu/mem-stores/P: type: 4, size: 112, config: 0x82d0, { sample_period, sample_freq }: 4000, sample_type: IP|TID|TIME|ADDR|ID|CPU|PERIOD|DATA_SRC|WEIGHT, read_format: ID, disabled: 1, inherit: 1, freq: 1, precise_ip: 3, sample_id_all: 1
#
# perf report --stdio
<SNIP>
# Total Lost Samples: 14
# Samples: 216 of event 'cpu/mem-loads,ldlat=30/P'
# Event count (approx.): 15207
# Overhead Symbol Shared Object
# ........ ..................................... ............................
10.32% [k] update_blocked_averages [kernel.vmlinux]
3.43% [.] 0x00000000001a2122 qemu-system-x86_64 (deleted)
2.52% [k] enqueue_entity [kernel.vmlinux]
1.88% [.] g_main_context_query libglib-2.0.so.0.4800.2
1.86% [k] __schedule [kernel.vmlinux]
<SNIP>
# Samples: 196 of event 'cpu/mem-stores/P'
# Event count (approx.): 14771346
# Overhead Symbol Shared Object
# ........ ................................... ............................
13.91% [k] intel_idle [kernel.vmlinux]
3.02% [.] 0x00000000022f06ea chrome
2.94% [.] 0x00000000001a1b4c qemu-system-x86_64 (deleted)
2.94% [.] 0x000000000019d8e4 qemu-system-x86_64 (deleted)
2.38% [.] 0x00000000001a1c52 qemu-system-x86_64 (deleted)
<SNIP>
Signed-off-by: Jiri Olsa <[email protected]>
Tested-by: Arnaldo Carvalho de Melo <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: David Ahern <[email protected]>
Cc: Don Zickus <[email protected]>
Cc: Joe Mario <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Adding c2c command base wirings. Its implementation is going to be added
gradually in following patches.
Signed-off-by: Jiri Olsa <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: David Ahern <[email protected]>
Cc: Don Zickus <[email protected]>
Cc: Joe Mario <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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