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/tools/perf/
A Dcommand-list.txt2 # List of known perf commands.
5 perf-annotate mainporcelain common
6 perf-archive mainporcelain common
7 perf-bench mainporcelain common
10 perf-data mainporcelain common
11 perf-diff mainporcelain common
12 perf-c2c mainporcelain common
20 perf-kvm mainporcelain common
22 perf-list mainporcelain common
24 perf-mem mainporcelain common
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A DBuild1 perf-bench-y += builtin-bench.o
2 perf-y += builtin-annotate.o
3 perf-y += builtin-check.o
4 perf-y += builtin-config.o
5 perf-y += builtin-diff.o
6 perf-y += builtin-evlist.o
8 perf-y += builtin-help.o
16 perf-y += builtin-top.o
42 perf-y += perf.o
59 perf-y += arch/
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A D.gitignore6 perf
10 perf-help
11 perf-record
12 perf-report
13 perf-stat
14 perf-top
15 perf*.1
16 perf*.xml
17 perf*.html
19 perf*.data
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/tools/perf/tests/
A DBuild3 perf-test-y += builtin-test.o
6 perf-test-y += dso-data.o
12 perf-test-y += perf-record.o
16 perf-test-y += pmu.o
27 perf-test-y += wp.o
40 perf-test-y += mem.o
42 perf-test-y += stat.o
47 perf-test-y += sdt.o
50 perf-test-y += perf-hooks.o
60 perf-test-y += pfm.o
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/tools/perf/Documentation/
A Dperf.txt1 perf(1)
81 linkperf:perf-stat[1], linkperf:perf-top[1],
82 linkperf:perf-record[1], linkperf:perf-report[1],
89 linkperf:perf-config[1], linkperf:perf-data[1], linkperf:perf-diff[1],
90 linkperf:perf-evlist[1], linkperf:perf-ftrace[1],
91 linkperf:perf-help[1], linkperf:perf-inject[1],
92 linkperf:perf-intel-pt[1], linkperf:perf-iostat[1], linkperf:perf-kallsyms[1],
93 linkperf:perf-kmem[1], linkperf:perf-kvm[1], linkperf:perf-lock[1],
94 linkperf:perf-mem[1], linkperf:perf-probe[1], linkperf:perf-sched[1],
95 linkperf:perf-script[1], linkperf:perf-test[1],
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A Dtips.txt6 Customize output of perf script with: perf script -F event,ip,sym
8 Save output of perf stat using: perf stat record <target workload>
19 Profiling branch (mis)predictions with: perf record -b / perf report
22 Treat branches as callchains: perf record -b ... ; perf report --branch-history
23 Show estimate cycles per function and IPC in annotate use perf record -b ... ; perf report --total-…
27 For memory address profiling, try: perf mem record / perf mem report
33 To not record events from perf itself add --exclude-perf
40 To compute metrics for samples use perf record -e '{cycles,instructions}' ... ; perf script -F +met…
54 To analyze cache line scalability issues use perf c2c record ... ; perf c2c report
59 Add -I to perf record to sample register values, which will be visible in perf report sample contex…
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A Dperf-daemon.txt1 perf-daemon(1)
13 'perf daemon'
14 'perf daemon' [<options>]
129 # perf daemon start
134 # perf daemon
144 # perf daemon -v
172 # perf daemon ping
184 [ perf record: Dump perf.data.2020123017013149 ]
195 [ perf record: Dump perf.data.2020123017024689 ]
198 [ perf record: Dump perf.data.2020123017024713 ]
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A Dperf.data-directory-format.txt1 perf.data directory format
23 $ tree -ps perf.data
24 perf.data
34 $ sudo perf record --kcore uname
36 [ perf record: Woken up 1 times to write data ]
37 [ perf record: Captured and wrote 0.015 MB perf.data (9 samples) ]
38 $ sudo tree -ps perf.data
39 perf.data
47 $ sudo perf script -v
53 Using perf.data/kcore_dir/kcore for kernel data
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/tools/perf/util/
A DBuild6 perf-util-y += annotate.o
11 perf-util-y += config.o
13 perf-util-y += ctype.o
15 perf-util-y += disasm.o
17 perf-util-y += env.o
18 perf-util-y += event.o
21 perf-util-y += evsel.o
28 perf-util-y += mmap.o
34 perf-util-y += perf-regs-arch/
45 perf-util-y += smt.o
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/tools/perf/tests/shell/
A Dlock_contention.sh47 perf lock record -o ${perfdata} -- perf bench sched messaging -p > /dev/null 2>&1
67 perf lock con -a -b -E 1 -q -- perf bench sched messaging -p > /dev/null 2> ${result}
78 perf lock record -o- -- perf bench sched messaging -p 2> /dev/null | \
102 perf lock con -a -b -t -E 1 -q -- perf bench sched messaging -p > /dev/null 2> ${result}
125 perf lock con -a -b -l -E 1 -q -- perf bench sched messaging -p > /dev/null 2> ${result}
143 perf lock con -a -b -g -E 1 -q -- perf bench sched messaging -p > /dev/null 2> ${result}
165 perf lock con -a -b -Y spinlock -q -- perf bench sched messaging -p > /dev/null 2> ${result}
197 perf lock con -a -b -L tasklist_lock -q -- perf bench sched messaging -p > /dev/null 2> ${result}
225 …perf lock con -a -b -S unix_stream -E 1 -q -- perf bench sched messaging -p > /dev/null 2> ${resul…
269 …perf lock con -a -b -g -E 1 -F wait_total -q -- perf bench sched messaging -p > /dev/null 2> ${res…
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A Dpipe_test.sh13 data=$(mktemp /tmp/perf.data.XXXXXX)
14 data2=$(mktemp /tmp/perf.data2.XXXXXX)
42 if ! perf record -e task-clock:u -o - ${prog} | perf report -i - --task | grep -q ${task}
49 if ! perf record -g -e task-clock:u -o - ${prog} | perf report -i - --task | grep -q ${task}
73 …if ! perf record -e task-clock:u -o - ${prog} | perf inject ${inject_opt}| perf report -i - | grep…
80 …if ! perf record -g -e task-clock:u -o - ${prog} | perf inject ${inject_opt} | perf report -i - | …
87 perf record -e task-clock:u -o - ${prog} | perf inject ${inject_opt} -o ${data}
94 perf record -e task-clock:u -o ${data} ${prog}
95 if ! perf inject ${inject_opt} -i ${data} | perf report -i - | grep -q ${sym}; then
102 if ! perf inject ${inject_opt} -i ${data} | perf report -i - | grep -q ${sym}; then
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A Drecord.sh21 perfdata=$(mktemp /tmp/__perf_test.perf.data.XXXXX)
22 script_output=$(mktemp /tmp/__perf_test.perf.data.XXXXX.script)
66 if ! perf report -i "${perfdata}" -q | grep -q "${testsym}"
89 if ! perf report -i "${perfdata}" -q | grep -q "${testsym}"
101 if ! perf list pmu | grep -q 'br_inst_retired.near_call'
113 | perf script -F ip,sym,iregs -i - 2> /dev/null \
154 if ! perf record -o "${perfdata}" ${testprog} 2> /dev/null
166 if ! perf record -e cpu-clock,cs --threads=package \
221 if ! perf report -i "${perfdata}" -D | grep -q "CGROUP"
264 perf test -w brstack 2> /dev/null
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A Drecord_offcpu.sh8 perfdata=$(mktemp /tmp/__perf_test.perf.data.XXXXX)
37 if perf version --build-options 2>&1 | grep HAVE_BPF_SKEL | grep -q OFF
48 if ! perf record --off-cpu -e dummy -o ${perfdata} sleep 1 2> /dev/null
54 if ! perf evlist -i ${perfdata} | grep -q "offcpu-time"
60 if ! perf report -i ${perfdata} -q --percent-limit=90 | grep -E -q sleep
73 if ! perf record --off-cpu -e dummy -o ${perfdata} -- \
74 perf bench sched messaging -g 10 > /dev/null 2>&1
80 if ! perf evlist -i ${perfdata} | grep -q "offcpu-time"
87 if ! perf report -i ${perfdata} -s comm -q -n -t ';' --percent-limit=90 | \
117 if ! perf script --time "0, ${dummy_timestamp}" -i ${perfdata} -F period | \
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A Dtest_task_analyzer.sh5 tmpdir=$(mktemp -d /tmp/perf-script-task-analyzer-XXXXX)
18 rm -f perf.data
19 rm -f perf.data.old
58 perf check feature -q libtraceevent && return 0
75 perf script report task-analyzer > "$out"
89 perf script report task-analyzer --ms --filter-tasks perf --highlight-tasks perf \
98 --limit-to-tasks perf > "$out"
105 perf script report task-analyzer --summary > "$out"
112 perf script report task-analyzer --summary-extended > "$out"
119 perf script report task-analyzer --summary-only > "$out"
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A Dsched.sh13 perfdata=$(mktemp /tmp/__perf_test_sched.perf.data.XXXXX)
33 perf test -w noploop 10 &
36 perf test -w noploop 10 &
64 perf sched record --no-inherit -o "${perfdata}" sleep 1
72 if ! perf sched latency -i "${perfdata}" | grep -q perf-noploop
82 if ! perf sched script -i "${perfdata}" | grep -q perf-noploop
92 if ! perf sched map -i "${perfdata}" | grep -q perf-noploop
102 if ! perf sched timehist -i "${perfdata}" | grep -q perf-noploop
A Drecord_bpf_filter.sh8 perfdata=$(mktemp /tmp/__perf_test.perf.data.XXXXX)
25 if ! perf record -e task-clock --filter 'period > 1' \
51 if perf script -i "${perfdata}" -F ip | grep 'ffffffff[0-9a-f]*'
70 if ! perf record -e task-clock --filter 'cpu > 0' \
78 if ! perf record --sample-cpu -e task-clock --filter 'cpu > 0' \
92 if ! perf record -e task-clock --filter 'period > 1000, ip > 0' \
122 if ! perf record -e task-clock --filter 'period > 100000' \
139 if perf script -i "${perfdata}" -F event,ip | grep page-fault | \
153 if ! perf record -e task-clock --filter 'cgroup == /' \
161 if ! perf record -e task-clock --filter 'cgroup == /' \
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/tools/perf/trace/beauty/
A DBuild1 perf-y += clone.o
2 perf-y += fcntl.o
3 perf-y += flock.o
4 perf-y += fs_at_flags.o
5 perf-y += fsmount.o
6 perf-y += fspick.o
8 perf-y += ioctl.o
10 perf-y += kcmp.o
15 perf-y += prctl.o
18 perf-y += socket.o
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/tools/perf/bench/
A DBuild1 perf-bench-y += sched-messaging.o
2 perf-bench-y += sched-pipe.o
4 perf-bench-y += syscall.o
5 perf-bench-y += mem-functions.o
6 perf-bench-y += futex.o
7 perf-bench-y += futex-hash.o
8 perf-bench-y += futex-wake.o
12 perf-bench-y += epoll-wait.o
13 perf-bench-y += epoll-ctl.o
20 perf-bench-y += pmu-scan.o
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/tools/perf/arch/x86/util/
A DBuild1 perf-util-y += header.o
2 perf-util-y += tsc.o
3 perf-util-y += pmu.o
5 perf-util-y += perf_regs.o
6 perf-util-y += topdown.o
7 perf-util-y += machine.o
8 perf-util-y += event.o
9 perf-util-y += evlist.o
11 perf-util-y += evsel.o
12 perf-util-y += iostat.o
[all …]
/tools/perf/tests/shell/attr/
A DREADME3 This testing support is embedded into perf directly and is governed
8 each event created within single perf command. Each event details
9 are stored into separate text file. Once perf command is finished
33 Following tests are defined (with perf commands):
35 perf record kill (test-record-basic)
44 perf record -c 123 kill (test-record-count)
45 perf record -d kill (test-record-data)
46 perf record -F 100 kill (test-record-freq)
49 perf record --call-graph dwarf kill (test-record-graph-dwarf)
61 perf record -R kill (test-record-raw)
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/tools/perf/ui/
A DBuild1 perf-ui-y += setup.o
2 perf-ui-y += helpline.o
3 perf-ui-y += progress.o
4 perf-ui-y += util.o
5 perf-ui-y += hist.o
6 perf-ui-y += stdio/hist.o
10 perf-ui-$(CONFIG_SLANG) += browser.o
11 perf-ui-$(CONFIG_SLANG) += keysyms.o
12 perf-ui-$(CONFIG_SLANG) += browsers/
13 perf-ui-$(CONFIG_SLANG) += tui/
/tools/perf/arch/powerpc/util/
A DBuild1 perf-util-y += header.o
2 perf-util-$(CONFIG_LIBTRACEEVENT) += kvm-stat.o
3 perf-util-y += perf_regs.o
4 perf-util-y += mem-events.o
5 perf-util-y += pmu.o
6 perf-util-y += sym-handling.o
7 perf-util-y += evsel.o
9 perf-util-$(CONFIG_LIBDW) += skip-callchain-idx.o
11 perf-util-$(CONFIG_LIBUNWIND) += unwind-libunwind.o
12 perf-util-$(CONFIG_LIBDW_DWARF_UNWIND) += unwind-libdw.o
/tools/perf/util/perf-regs-arch/
A DBuild1 perf-util-y += perf_regs_aarch64.o
2 perf-util-y += perf_regs_arm.o
3 perf-util-y += perf_regs_csky.o
4 perf-util-y += perf_regs_loongarch.o
5 perf-util-y += perf_regs_mips.o
6 perf-util-y += perf_regs_powerpc.o
7 perf-util-y += perf_regs_riscv.o
8 perf-util-y += perf_regs_s390.o
9 perf-util-y += perf_regs_x86.o
/tools/perf/tests/shell/lib/
A Dstat_output.sh14 perf stat $2 true
27 perf stat -a $2 true
40 perf stat -A -a --no-merge $2 true
48 perf stat -I 1000 $2 true
56 perf stat -e cpu-clock $2 true
69 perf stat --per-core -a $2 true
95 perf stat --per-cache -a $2 true
108 perf stat --per-cluster -a $2 true
120 perf stat --per-die -a $2 true
133 perf stat --per-node -a $2 true
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/tools/perf/python/
A Dtwatch.py9 import perf
12 cpus = perf.cpu_map()
13 threads = perf.thread_map(thread)
14 evsel = perf.evsel(type = perf.TYPE_SOFTWARE,
15 config = perf.COUNT_SW_DUMMY,
19 sample_type = perf.SAMPLE_PERIOD | perf.SAMPLE_TID | perf.SAMPLE_CPU)
29 evlist = perf.evlist(cpus, threads)

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