Messages in this thread Patch in this message | | | From | Namhyung Kim <> | Subject | [PATCH] perf script: Add 'cgroup' field for output | Date | Thu, 26 Jan 2023 11:42:30 -0800 |
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There's no field for the cgroup, let's add one. To do that, users need to specify --all-cgroup option for perf record to capture the cgroup info.
$ perf record --all-cgroups -- true
$ perf script -F comm,pid,cgroup true 337112 /user.slice/user-657345.slice/user@657345.service/... true 337112 /user.slice/user-657345.slice/user@657345.service/... true 337112 /user.slice/user-657345.slice/user@657345.service/... true 337112 /user.slice/user-657345.slice/user@657345.service/...
Signed-off-by: Namhyung Kim <namhyung@kernel.org> --- tools/perf/Documentation/perf-script.txt | 2 +- tools/perf/builtin-script.c | 16 +++++++++++++++- 2 files changed, 16 insertions(+), 2 deletions(-)
diff --git a/tools/perf/Documentation/perf-script.txt b/tools/perf/Documentation/perf-script.txt index 8d77182fbf31..82c4dcb9c42e 100644 --- a/tools/perf/Documentation/perf-script.txt +++ b/tools/perf/Documentation/perf-script.txt @@ -134,7 +134,7 @@ OPTIONS srcline, period, iregs, uregs, brstack, brstacksym, flags, bpf-output, brstackinsn, brstackinsnlen, brstackoff, callindent, insn, insnlen, synth, phys_addr, metric, misc, srccode, ipc, data_page_size, code_page_size, ins_lat, - machine_pid, vcpu. + machine_pid, vcpu, cgroup. 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 diff --git a/tools/perf/builtin-script.c b/tools/perf/builtin-script.c index 69394ac0a20d..79976dde99b3 100644 --- a/tools/perf/builtin-script.c +++ b/tools/perf/builtin-script.c @@ -59,6 +59,7 @@ #include "util/dlfilter.h" #include "util/record.h" #include "util/util.h" +#include "util/cgroup.h" #include "perf.h" #include <linux/ctype.h> @@ -130,6 +131,7 @@ enum perf_output_field { PERF_OUTPUT_BRSTACKINSNLEN = 1ULL << 36, PERF_OUTPUT_MACHINE_PID = 1ULL << 37, PERF_OUTPUT_VCPU = 1ULL << 38, + PERF_OUTPUT_CGROUP = 1ULL << 39, }; struct perf_script { @@ -200,6 +202,7 @@ struct output_option { {.str = "brstackinsnlen", .field = PERF_OUTPUT_BRSTACKINSNLEN}, {.str = "machine_pid", .field = PERF_OUTPUT_MACHINE_PID}, {.str = "vcpu", .field = PERF_OUTPUT_VCPU}, + {.str = "cgroup", .field = PERF_OUTPUT_CGROUP}, }; enum { @@ -2220,6 +2223,17 @@ static void process_event(struct perf_script *script, if (PRINT_FIELD(CODE_PAGE_SIZE)) fprintf(fp, " %s", get_page_size_name(sample->code_page_size, str)); + if (PRINT_FIELD(CGROUP)) { + const char *cgrp_name; + struct cgroup *cgrp = cgroup__find(machine->env, + sample->cgroup); + if (cgrp != NULL) + cgrp_name = cgrp->name; + else + cgrp_name = "unknown"; + fprintf(fp, " %s", cgrp_name); + } + perf_sample__fprintf_ipc(sample, attr, fp); fprintf(fp, "\n"); @@ -3856,7 +3870,7 @@ int cmd_script(int argc, const char **argv) "brstacksym,flags,data_src,weight,bpf-output,brstackinsn," "brstackinsnlen,brstackoff,callindent,insn,insnlen,synth," "phys_addr,metric,misc,srccode,ipc,tod,data_page_size," - "code_page_size,ins_lat", + "code_page_size,ins_lat,machine_pid,vcpu,cgroup", parse_output_fields), OPT_BOOLEAN('a', "all-cpus", &system_wide, "system-wide collection from all CPUs"), -- 2.39.1.456.gfc5497dd1b-goog
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