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perf-script-add-support-to-display-sample-misc-...
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File perf-script-add-support-to-display-sample-misc-field.patch of Package perf
From: Jiri Olsa <jolsa@kernel.org> Date: Sun, 7 Jan 2018 17:03:52 +0100 Subject: perf script: Add support to display sample misc field Git-commit: 28a0b39877f5ed64ae9fadf95dddb90999309dee Patch-mainline: v4.16-rc1 References: FATE#326324 (dependent patch) X-Info: Major changes for context. Missing multiple options in perf-script.txt X-Info: Missing a1a587073ccd (perf_sample__fprintf_*) Adding support to display sample misc field in form of letter for each bit: # perf script -F +misc ... sched-messaging 1414 K 28690.636582: 4590 cycles ... sched-messaging 1407 U 28690.636600: 325620 cycles ... sched-messaging 1414 K 28690.636608: 19473 cycles ... misc field __________/ The misc bits are assigned to following letters: PERF_RECORD_MISC_KERNEL K PERF_RECORD_MISC_USER U PERF_RECORD_MISC_HYPERVISOR H PERF_RECORD_MISC_GUEST_KERNEL G PERF_RECORD_MISC_GUEST_USER g PERF_RECORD_MISC_MMAP_DATA* M PERF_RECORD_MISC_COMM_EXEC E PERF_RECORD_MISC_SWITCH_OUT S Signed-off-by: Jiri Olsa <jolsa@kernel.org> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/20180107160356.28203-9-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Tony Jones <tonyj@suse.de> --- tools/perf/Documentation/perf-script.txt | 20 ++++++++- tools/perf/builtin-script.c | 74 +++++++++++++++++++++++++++----- tools/perf/util/event.h | 1 + tools/perf/util/evsel.c | 1 + 4 files changed, 84 insertions(+), 12 deletions(-) diff --git a/tools/perf/Documentation/perf-script.txt b/tools/perf/Documentation/perf-script.txt index 7b622a812a72..93ae8d60e3d3 100644 --- a/tools/perf/Documentation/perf-script.txt +++ b/tools/perf/Documentation/perf-script.txt @@ -116,8 +116,9 @@ --fields:: Comma separated list of fields to print. Options are: comm, tid, pid, time, cpu, event, trace, ip, sym, dso, addr, symoff, - srcline, period, iregs, brstack, brstacksym, flags, bpf-output, brstackinsn, - callindent, insn, insnlen. Field list can be prepended with the type, trace, sw or hw, + srcline, period, iregs, brstack, brstacksym, flags, bpf-output, + brstackinsn, callindent, insn, insnlen, misc. + Field list can be prepended with the type, trace, sw or hw, to indicate to which event type the field list applies. e.g., -F sw:comm,tid,time,ip,sym and -F trace:time,cpu,trace @@ -203,6 +203,24 @@ OPTIONS is printed. This is the full execution path leading to the sample. This is only supported when the sample was recorded with perf record -b or -j any. + For sample events it's possible to display misc field with -F +misc option, + following letters are displayed for each bit: + + PERF_RECORD_MISC_KERNEL K + PERF_RECORD_MISC_USER U + PERF_RECORD_MISC_HYPERVISOR H + PERF_RECORD_MISC_GUEST_KERNEL G + PERF_RECORD_MISC_GUEST_USER g + PERF_RECORD_MISC_MMAP_DATA* M + PERF_RECORD_MISC_COMM_EXEC E + PERF_RECORD_MISC_SWITCH_OUT S + + $ perf script -F +misc ... + sched-messaging 1414 K 28690.636582: 4590 cycles ... + sched-messaging 1407 U 28690.636600: 325620 cycles ... + sched-messaging 1414 K 28690.636608: 19473 cycles ... + misc field ___________/ + -k:: --vmlinux=<file>:: vmlinux pathname diff --git a/tools/perf/builtin-script.c b/tools/perf/builtin-script.c index 330dcd9b9b8f..bb603495cf4a 100644 --- a/tools/perf/builtin-script.c +++ b/tools/perf/builtin-script.c @@ -93,6 +93,7 @@ enum perf_output_field { PERF_OUTPUT_INSN = 1U << 21, PERF_OUTPUT_INSNLEN = 1U << 22, PERF_OUTPUT_BRSTACKINSN = 1U << 23, + PERF_OUTPUT_MISC = 1U << 29, }; struct output_option { @@ -120,6 +120,7 @@ struct output_option { {.str = "insn", .field = PERF_OUTPUT_INSN}, {.str = "insnlen", .field = PERF_OUTPUT_INSNLEN}, {.str = "brstackinsn", .field = PERF_OUTPUT_BRSTACKINSN}, + {.str = "misc", .field = PERF_OUTPUT_MISC}, }; /* default set to maintain compatibility with current format */ @@ -463,7 +463,8 @@ static void print_sample_start(struct perf_sample *sample, struct thread *thread, - struct perf_evsel *evsel) + struct perf_evsel *evsel, + u32 type) { struct perf_event_attr *attr = &evsel->attr; unsigned long secs; @@ -492,6 +493,47 @@ printf("[%03d] ", sample->cpu); } + if (PRINT_FIELD(MISC)) { + int ret = 0; + + #define has(m) \ + (sample->misc & PERF_RECORD_MISC_##m) == PERF_RECORD_MISC_##m + + if (has(KERNEL)) + ret += printf("K"); + if (has(USER)) + ret += printf("U"); + if (has(HYPERVISOR)) + ret += printf("H"); + if (has(GUEST_KERNEL)) + ret += printf("G"); + if (has(GUEST_USER)) + ret += printf("g"); + + switch (type) { + case PERF_RECORD_MMAP: + case PERF_RECORD_MMAP2: + if (has(MMAP_DATA)) + ret += printf("M"); + break; + case PERF_RECORD_COMM: + if (has(COMM_EXEC)) + ret += printf("E"); + break; + case PERF_RECORD_SWITCH: + case PERF_RECORD_SWITCH_CPU_WIDE: + if (has(SWITCH_OUT)) + ret += printf("S"); + default: + break; + } + + #undef has + + printf("%*s", 6 - ret, " "); + } + + if (PRINT_FIELD(TIME)) { nsecs = sample->time; secs = nsecs / NSEC_PER_SEC; @@ -1138,7 +1181,7 @@ if (output[attr->type].fields == 0) return; - print_sample_start(sample, thread, evsel); + print_sample_start(sample, thread, evsel, PERF_RECORD_SAMPLE); if (PRINT_FIELD(PERIOD)) printf("%10" PRIu64 " ", sample->period); @@ -1369,7 +1412,7 @@ sample->tid = event->comm.tid; sample->pid = event->comm.pid; } - print_sample_start(sample, thread, evsel); + print_sample_start(sample, thread, evsel, PERF_RECORD_COMM); perf_event__fprintf(event, stdout); ret = 0; out: @@ -1404,7 +1447,7 @@ sample->tid = event->namespaces.tid; sample->pid = event->namespaces.pid; } - print_sample_start(sample, thread, evsel); + print_sample_start(sample, thread, evsel, PERF_RECORD_NAMESPACES); perf_event__fprintf(event, stdout); ret = 0; out: @@ -1437,7 +1480,7 @@ sample->tid = event->fork.tid; sample->pid = event->fork.pid; } - print_sample_start(sample, thread, evsel); + print_sample_start(sample, thread, evsel, PERF_RECORD_FORK); perf_event__fprintf(event, stdout); thread__put(thread); @@ -1466,7 +1509,7 @@ sample->tid = event->fork.tid; sample->pid = event->fork.pid; } - print_sample_start(sample, thread, evsel); + print_sample_start(sample, thread, evsel, PERF_RECORD_EXIT); perf_event__fprintf(event, stdout); if (perf_event__process_exit(tool, event, sample, machine) < 0) @@ -1501,7 +1544,7 @@ sample->tid = event->mmap.tid; sample->pid = event->mmap.pid; } - print_sample_start(sample, thread, evsel); + print_sample_start(sample, thread, evsel, PERF_RECORD_MMAP); perf_event__fprintf(event, stdout); thread__put(thread); return 0; @@ -1532,7 +1575,7 @@ sample->tid = event->mmap2.tid; sample->pid = event->mmap2.pid; } - print_sample_start(sample, thread, evsel); + print_sample_start(sample, thread, evsel, PERF_RECORD_MMAP2); perf_event__fprintf(event, stdout); thread__put(thread); return 0; @@ -1558,7 +1601,7 @@ return -1; } - print_sample_start(sample, thread, evsel); + print_sample_start(sample, thread, evsel, PERF_RECORD_SWITCH); perf_event__fprintf(event, stdout); thread__put(thread); return 0; diff --git a/tools/perf/util/event.h b/tools/perf/util/event.h index 1ae95efbfb95..e5fbd6dd1b01 100644 --- a/tools/perf/util/event.h +++ b/tools/perf/util/event.h @@ -205,6 +205,7 @@ struct perf_sample { u32 flags; u16 insn_len; u8 cpumode; + u16 misc; char insn[MAX_INSN]; void *raw_data; struct ip_callchain *callchain; diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c index c435b2444153..d934f04e3110 100644 --- a/tools/perf/util/evsel.c +++ b/tools/perf/util/evsel.c @@ -2042,6 +2042,7 @@ int perf_evsel__parse_sample(struct perf_evsel *evsel, union perf_event *event, data->stream_id = data->id = data->time = -1ULL; data->period = evsel->attr.sample_period; data->cpumode = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK; + data->misc = event->header.misc; if (event->header.type != PERF_RECORD_SAMPLE) { if (!evsel->attr.sample_id_all)
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