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/linux/drivers/ntb/test/
H A Dntb_perf.c144 struct perf_ctx *perf; member
169 struct perf_ctx *perf; member
205 int (*cmd_recv)(struct perf_ctx *perf, int *pidx, enum perf_cmd *cmd,
247 static void perf_terminate_test(struct perf_ctx *perf);
253 link = ntb_link_is_up(peer->perf->ntb, NULL, NULL); in perf_link_is_up()
260 struct perf_ctx *perf = peer->perf; in perf_spad_cmd_send() local
264 dev_dbg(&perf->ntb->dev, "CMD send: %d 0x%llx\n", cmd, data); in perf_spad_cmd_send()
277 sts = ntb_peer_spad_read(perf->ntb, peer->pidx, in perf_spad_cmd_send()
278 PERF_SPAD_CMD(perf->gidx)); in perf_spad_cmd_send()
284 ntb_peer_spad_write(perf->ntb, peer->pidx, in perf_spad_cmd_send()
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/linux/tools/perf/tests/
H A DBuild3 perf-test-y += builtin-test.o
4 perf-test-y += tests-scripts.o
5 perf-test-y += parse-events.o
6 perf-test-y += dso-data.o
7 perf-test-y += vmlinux-kallsyms.o
8 perf-test-y += openat-syscall.o
9 perf-test-y += openat-syscall-all-cpus.o
10 perf-test-$(CONFIG_LIBTRACEEVENT) += openat-syscall-tp-fields.o
11 perf-test-y += mmap-basic.o
12 perf-test-y += perf-record.o
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/linux/tools/perf/util/
H A DBuild4 perf-util-y += annotate-arch/
5 perf-util-y += arm64-frame-pointer-unwind-support.o
6 perf-util-y += addr2line.o
7 perf-util-y += addr_location.o
8 perf-util-y += annotate.o
9 perf-util-y += blake2s.o
10 perf-util-y += block-info.o
11 perf-util-y += block-range.o
12 perf-util-y += build-id.o
13 perf-util-y += cacheline.o
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/linux/drivers/gpu/drm/nouveau/nvkm/subdev/bios/
H A Dperf.c34 u32 perf = 0; in nvbios_perf_table() local
38 perf = nvbios_rd32(bios, bit_P.offset + 0); in nvbios_perf_table()
39 if (perf) { in nvbios_perf_table()
40 *ver = nvbios_rd08(bios, perf + 0); in nvbios_perf_table()
41 *hdr = nvbios_rd08(bios, perf + 1); in nvbios_perf_table()
43 *cnt = nvbios_rd08(bios, perf + 5); in nvbios_perf_table()
44 *len = nvbios_rd08(bios, perf + 2); in nvbios_perf_table()
45 *snr = nvbios_rd08(bios, perf + 4); in nvbios_perf_table()
46 *ssz = nvbios_rd08(bios, perf + 3); in nvbios_perf_table()
47 return perf; in nvbios_perf_table()
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/linux/drivers/gpu/drm/msm/
H A Dmsm_perf.c41 static int wait_sample(struct msm_perf_state *perf) in wait_sample() argument
45 if (time_after(perf->next_jiffies, start_jiffies)) { in wait_sample()
47 perf->next_jiffies - start_jiffies; in wait_sample()
54 perf->next_jiffies += SAMPLE_TIME; in wait_sample()
58 static int refill_buf(struct msm_perf_state *perf) in refill_buf() argument
60 struct msm_drm_private *priv = perf->dev->dev_private; in refill_buf()
62 char *ptr = perf->buf; in refill_buf()
63 int rem = sizeof(perf->buf); in refill_buf()
66 if ((perf->cnt++ % 32) == 0) { in refill_buf()
86 ret = wait_sample(perf); in refill_buf()
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/linux/tools/perf/Documentation/
H A Dtips.txt1 For a higher level overview, try: perf report --sort comm,dso
2 Sample related events with: perf record -e '{cycles,instructions}:S'
3 Compare performance results with: perf diff [<old file> <new file>]
4 Boolean options have negative forms, e.g.: perf report --no-children
6 Customize output of perf script with: perf script -F event,ip,sym
7 Generate a script for your data: perf script -g <lang>
8 Save output of perf stat using: perf stat record <target workload>
9 Create an archive with symtabs to analyse on other machine: perf archiv
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H A Dperf.txt1 perf(1)
6 perf - Performance analysis tools for Linux
11 'perf' [--version] [--help] [OPTIONS] COMMAND [ARGS]
17 Run perf help command.
21 Display perf version.
44 List the most commonly used perf commands.
47 List available perf options.
64 perf-event-open - Print perf_event_open() arguments and
66 kmaps - Print kernel and module maps (perf script
67 and perf report without browser)
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H A Dperf-daemon.txt1 perf-daemon(1)
7 perf-daemon - Run record sessions on background
13 'perf daemon'
14 'perf daemon' [<options>]
15 'perf daemon start' [<options>]
16 'perf daemon stop' [<options>]
17 'perf daemon signal' [<options>]
18 'perf daemon ping' [<options>]
26 You can imagine 'perf daemon' of background process with several
27 'perf record' child tasks, like:
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H A Dperf-kvm.txt1 perf-kvm(1)
6 perf-kvm - Tool to trace/measure kvm guest os
11 'perf kvm' [--host] [--guest] [--guestmount=<path>
14 'perf kvm' [--host] [--guest] [--guestkallsyms=<path> --guestmodules=<path>
16 'perf kvm stat [record|report|live] [<options>]
20 There are a couple of variants of perf kvm:
22 'perf kvm [options] top <command>' to generates and displays
26 'perf kvm record <command>' to record the performance counter profile
27 of an arbitrary workload and save it into a perf data file. We set the
28 default behavior of perf kvm as --guest, so if neither --host nor --guest
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H A Dperf.data-directory-format.txt1 perf.data directory format
4 in following versions of perf. We will remove this
8 This document describes the on-disk perf.data directory format.
20 - there is a single perf.data file named 'data' within the directory.
23 $ tree -ps perf.data
24 perf.data
30 Currently the only 'perf record' option to output to a directory is
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) ]
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/linux/tools/perf/tests/shell/
H A Dlock_contention.sh8 perfdata=$(mktemp /tmp/__perf_test.perf.data.XXXXX)
36 if ! perf list tracepoint | grep -q lock:contention_begin; then
53 perf lock record -o ${perfdata} -- perf bench sched messaging -p > /dev/null 2>&1
55 perf lock contention -i ${perfdata} -E 1 -q 2> ${result}
67 if ! perf lock con -b true > /dev/null 2>&1 ; then
73 perf lock con -a -b -E 1 -q -- perf bench sched messaging -p > /dev/null 2> ${result}
84 perf lock record -o- -- perf bench sched messaging -p 2> ${errout} | \
85 perf lock contention -i- -E 1 -q 2> ${result}
98 perf lock contention -i ${perfdata} -t -E 1 -q 2> ${result}
105 if ! perf lock con -b true > /dev/null 2>&1 ; then
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H A Drecord.sh21 perfdata=$(mktemp /tmp/__perf_test.perf.data.XXXXX)
22 script_output=$(mktemp /tmp/__perf_test.perf.data.XXXXX.script)
55 if ! perf record -o /dev/null --quiet ${testprog} 2> /dev/null
60 if ! perf record --per-thread -o "${perfdata}" ${testprog} 2> /dev/null
66 if ! perf report -i "${perfdata}" -q | grep -q "${testsym}"
80 perf record -p "${TESTPID}" --per-thread -o "${perfdata}" sleep 1 2> /dev/null
89 if ! perf report -i "${perfdata}" -q | grep -q "${testsym}"
101 if ! perf list pmu | grep -q 'br_inst_retired.near_call'
106 …if ! perf record --intr-regs=\? 2>&1 | grep -q 'available registers: AX BX CX DX SI DI BP SP IP FL…
111 if ! perf record -o - --intr-regs=di,r8,dx,cx -e br_inst_retired.near_call \
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H A Dtest_brstack.sh13 if ! perf record -o- --no-buildid --branch-filter any,save_type,u -- true > /dev/null 2>&1 ; then
51 …perf record -o "$TMPDIR/perf.data" --branch-filter any,save_type,u -- ${TESTPROG} > "$TMPDIR/recor…
52 perf script -i "$TMPDIR/perf.data" --fields brstacksym > "$TMPDIR/perf.script"
73 perf script -i "$TMPDIR/perf.data" --fields brstack | \
78 if grep -E -m1 "0x[89a-f][0-9a-f]{15}" $TMPDIR/perf.script; then
91 perf record -o $TMPDIR/perf.data --branch-filter any,save_type,u,k -- \
92 perf test -w traploop 1000
93 perf script -i $TMPDIR/perf.data --fields brstacksym | \
94 tr ' ' '\n' > $TMPDIR/perf.script
105 if ! perf record --branch-filter any,k -o- -- true > /dev/null; then
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H A Dstat.sh8 stat_output=$(mktemp /tmp/perf-stat-test-output.XXXXX)
25 if ! perf stat true 2>&1 | grep -E -q "Performance counter stats for 'true':"
36 if ! perf stat --null true 2>&1 | grep -E -q "Performance counter stats for 'true':"
62 if ! perf stat "-C$cpu" -e cycles true 2>&1 | grep -E -q "No supported events found."
73 if ! perf stat record -e task-clock -o - true | perf stat report -i - 2>&1 | \
85 if ! perf stat record -e task-clock -o - true | perf script -i - 2>&1 | \
97 if ! perf stat -e '{cycles,cycles,cycles,cycles,cycles,cycles,cycles,cycles,cycles,cycles}' \
103 …if ! perf stat -r2 -e '{cycles,cycles,cycles,cycles,cycles,cycles,cycles,cycles,cycles,cycles}:W' \
117 if ! perf stat -e '{slots,topdown-retiring}' true > /dev/null 2>&1
126 if perf stat -e "$events" true 2>&1 | grep -E -q "<not supported>"
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H A Dperf_sched_stats.sh10 if ! perf sched stats record true 2>&1 | \
22 perf sched stats record true > /dev/null
23 if ! perf sched stats report 2>&1 | grep -E -q "Description"
27 rm perf.data
30 rm perf.data
36 if ! perf sched stats true 2>&1 | grep -E -q "Description"
47 perf sched stats record true > /dev/null
48 perf sched stats record true > /dev/null
49 if ! perf sched stats diff > /dev/null
53 rm perf.data.old perf.data
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/linux/tools/perf/
H 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
7 perf-y += builtin-ftrace.o
8 perf-y += builtin-help.o
9 perf-y += builtin-buildid-list.o
10 perf-y += builtin-buildid-cache.o
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H A D.gitignore6 perf
7 !include/perf/
8 perf-read-vdso32
9 perf-read-vdsox32
10 perf-help
11 perf-record
12 perf-report
13 perf-stat
14 perf-top
15 perf*.1
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/linux/tools/perf/bench/
H A DBuild1 perf-bench-y += sched-messaging.o
2 perf-bench-y += sched-pipe.o
3 perf-bench-y += sched-seccomp-notify.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
9 perf-bench-y += futex-wake-parallel.o
10 perf
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/linux/tools/perf/trace/beauty/
H 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
11 perf-y += mount_flags.o
12 perf-y += move_mount.o
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/linux/drivers/cpufreq/
H A Damd-pstate.c141 static inline u8 freq_to_perf(union perf_cached perf, u32 nominal_freq, unsigned int freq_val) in freq_to_perf() argument
143 u32 perf_val = DIV_ROUND_UP_ULL((u64)freq_val * perf.nominal_perf, nominal_freq); in freq_to_perf()
145 return (u8)clamp(perf_val, perf.lowest_perf, perf.highest_perf); in freq_to_perf()
148 static inline u32 perf_to_freq(union perf_cached perf, u32 nominal_freq, u8 perf_val) in perf_to_freq() argument
151 perf.nominal_perf); in perf_to_freq()
248 union perf_cached perf = READ_ONCE(cpudata->perf); in msr_update_perf() local
251 perf.highest_perf, in msr_update_perf()
299 union perf_cached perf = cpudata->perf; in msr_set_epp() local
301 trace_amd_pstate_epp_perf(cpudata->cpu, perf.highest_perf, in msr_set_epp()
344 union perf_cached perf = cpudata->perf; in shmem_set_epp() local
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H A Dacpi-cpufreq.c199 struct acpi_processor_performance *perf; in extract_io() local
202 perf = to_perf_data(data); in extract_io()
204 for (i = 0; i < perf->state_count; i++) { in extract_io()
205 if (value == perf->states[i].status) in extract_io()
215 struct acpi_processor_performance *perf; in extract_msr() local
224 perf = to_perf_data(data); in extract_msr()
227 if (msr == perf->states[pos->driver_data].status) in extract_msr()
309 struct acpi_processor_performance *perf = to_perf_data(data); in drv_read() local
311 .reg = &perf->control_register, in drv_read()
331 struct acpi_processor_performance *perf = to_perf_data(data); in drv_write() local
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/linux/drivers/gpu/drm/i915/
H A Di915_perf.c411 i915_perf_get_oa_config(struct i915_perf *perf, int metrics_set) in i915_perf_get_oa_config() argument
416 oa_config = idr_find(&perf->metrics_idr, metrics_set); in i915_perf_get_oa_config()
471 (GRAPHICS_VER(stream->perf->i915) == 12 ? in oa_report_reason()
487 stream->perf->gen8_valid_ctx_bit); in oa_report_ctx_invalid()
559 hw_tail = stream->perf->ops.oa_hw_tail_read(stream); in oa_buffer_check_unlocked()
598 __ratelimit(&stream->perf->tail_pointer_race)) in oa_buffer_check_unlocked()
907 oaheadptr = GRAPHICS_VER(stream->perf->i915) == 12 ? in gen8_append_oa_reports()
960 oastatus_reg = GRAPHICS_VER(stream->perf->i915) == 12 ? in gen8_oa_read()
986 drm_dbg(&stream->perf->i915->drm, in gen8_oa_read()
990 stream->perf->ops.oa_disable(stream); in gen8_oa_read()
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/linux/drivers/gpu/drm/i915/selftests/
H A Di915_perf.c20 alloc_empty_config(struct i915_perf *perf) in alloc_empty_config() argument
28 oa_config->perf = perf; in alloc_empty_config()
33 mutex_lock(&perf->metrics_lock); in alloc_empty_config()
35 oa_config->id = idr_alloc(&perf->metrics_idr, oa_config, 2, 0, GFP_KERNEL); in alloc_empty_config()
37 mutex_unlock(&perf->metrics_lock); in alloc_empty_config()
42 mutex_unlock(&perf->metrics_lock); in alloc_empty_config()
48 destroy_empty_config(struct i915_perf *perf) in destroy_empty_config() argument
53 mutex_lock(&perf->metrics_lock); in destroy_empty_config()
55 idr_for_each_entry(&perf->metrics_idr, tmp, id) { in destroy_empty_config()
63 idr_remove(&perf->metrics_idr, oa_config->id); in destroy_empty_config()
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/linux/tools/perf/arch/x86/util/
H A DBuild1 perf-util-y += header.o
2 perf-util-y += tsc.o
3 perf-util-y += pmu.o
4 perf-util-y += topdown.o
5 perf-util-y += machine.o
6 perf-util-y += event.o
7 perf-util-y += evlist.o
8 perf-util-y += mem-events.o
9 perf-util-y += evsel.o
10 perf-util-y += iostat.o
[all …]
/linux/tools/perf/python/
H A Dtracepoint.py6 import perf
17 cpus = perf.cpu_map()
18 threads = perf.thread_map(-1)
19 evlist = perf.parse_events("sched:sched_switch", cpus, threads)
27 ev.sample_type = ev.sample_type & ~perf.SAMPLE_IP
41 if not isinstance(event, perf.sample_event):

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