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perf kwork: Add irq report support

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Implements irq kwork report function.

Test cases:

  # perf kwork record -- sleep 10
  [ perf record: Woken up 0 times to write data ]
  [ perf record: Captured and wrote 6.134 MB perf.data ]

  # perf kwork report

    Kwork Name                     | Cpu  | Total Runtime | Count     | Max runtime   | Max runtime start   | Max runtime end     |
   --------------------------------------------------------------------------------------------------------------------------------
    virtio0-requests:25            | 0000 |   1167.501 ms |     18284 |      1.096 ms |      44004.464905 s |      44004.466001 s |
    eth0:10                        | 0002 |      0.185 ms |         5 |      0.058 ms |      44005.012222 s |      44005.012280 s |
   --------------------------------------------------------------------------------------------------------------------------------

  # perf kwork report -C 2

    Kwork Name                     | Cpu  | Total Runtime | Count     | Max runtime   | Max runtime start   | Max runtime end     |
   --------------------------------------------------------------------------------------------------------------------------------
    eth0:10                        | 0002 |      0.185 ms |         5 |      0.058 ms |      44005.012222 s |      44005.012280 s |
   --------------------------------------------------------------------------------------------------------------------------------

  # perf kwork report -C 3

    Kwork Name                     | Cpu  | Total Runtime | Count     | Max runtime   | Max runtime start   | Max runtime end     |
   --------------------------------------------------------------------------------------------------------------------------------
   --------------------------------------------------------------------------------------------------------------------------------

  # perf kwork report -i perf.data

    Kwork Name                     | Cpu  | Total Runtime | Count     | Max runtime   | Max runtime start   | Max runtime end     |
   --------------------------------------------------------------------------------------------------------------------------------
    virtio0-requests:25            | 0000 |   1167.501 ms |     18284 |      1.096 ms |      44004.464905 s |      44004.466001 s |
    eth0:10                        | 0002 |      0.185 ms |         5 |      0.058 ms |      44005.012222 s |      44005.012280 s |
   --------------------------------------------------------------------------------------------------------------------------------

  # perf kwork report -s max,freq

    Kwork Name                     | Cpu  | Total Runtime | Count     | Max runtime   | Max runtime start   | Max runtime end     |
   --------------------------------------------------------------------------------------------------------------------------------
    virtio0-requests:25            | 0000 |   1167.501 ms |     18284 |      1.096 ms |      44004.464905 s |      44004.466001 s |
    eth0:10                        | 0002 |      0.185 ms |         5 |      0.058 ms |      44005.012222 s |      44005.012280 s |
   --------------------------------------------------------------------------------------------------------------------------------

  # perf kwork report -S

    Kwork Name                     | Cpu  | Total Runtime | Count     | Max runtime   | Max runtime start   | Max runtime end     |
   --------------------------------------------------------------------------------------------------------------------------------
    virtio0-requests:25            | 0000 |   1167.501 ms |     18284 |      1.096 ms |      44004.464905 s |      44004.466001 s |
    eth0:10                        | 0002 |      0.185 ms |         5 |      0.058 ms |      44005.012222 s |      44005.012280 s |
   --------------------------------------------------------------------------------------------------------------------------------
    Total count            :     18289
    Total runtime   (msec) :  1167.686 (0.115% load average)
    Total time span (msec) : 10159.155
   --------------------------------------------------------------------------------------------------------------------------------

  # perf kwork report --time 44005,

    Kwork Name                     | Cpu  | Total Runtime | Count     | Max runtime   | Max runtime start   | Max runtime end     |
   --------------------------------------------------------------------------------------------------------------------------------
    virtio0-requests:25            | 0000 |    402.173 ms |      4695 |      0.981 ms |      44007.831992 s |      44007.832973 s |
    eth0:10                        | 0002 |      0.089 ms |         2 |      0.058 ms |      44005.012222 s |      44005.012280 s |
   --------------------------------------------------------------------------------------------------------------------------------

Committer testing:

  # perf kwork report

    Kwork Name                     | Cpu  | Total Runtime | Count     | Max runtime   | Max runtime start   | Max runtime end     |
   --------------------------------------------------------------------------------------------------------------------------------
    nvme0q5:130                    | 0004 |      1.101 ms |        49 |      0.051 ms |      26035.056403 s |      26035.056455 s |
    amdgpu:162                     | 0002 |      0.176 ms |         9 |      0.046 ms |      26035.268020 s |      26035.268066 s |
    nvme0q24:149                   | 0023 |      0.161 ms |        55 |      0.009 ms |      26035.655280 s |      26035.655288 s |
    nvme0q20:145                   | 0019 |      0.090 ms |        33 |      0.014 ms |      26035.939018 s |      26035.939032 s |
    nvme0q31:156                   | 0030 |      0.075 ms |        21 |      0.010 ms |      26035.052237 s |      26035.052247 s |
    nvme0q8:133                    | 0007 |      0.062 ms |        12 |      0.021 ms |      26035.416840 s |      26035.416861 s |
    nvme0q6:131                    | 0005 |      0.054 ms |        22 |      0.010 ms |      26035.199919 s |      26035.199929 s |
    nvme0q19:144                   | 0018 |      0.052 ms |        14 |      0.010 ms |      26035.110615 s |      26035.110625 s |
    nvme0q7:132                    | 0006 |      0.049 ms |        13 |      0.007 ms |      26035.125180 s |      26035.125187 s |
    nvme0q18:143                   | 0017 |      0.033 ms |        14 |      0.007 ms |      26035.169698 s |      26035.169705 s |
    nvme0q17:142                   | 0016 |      0.013 ms |         1 |      0.013 ms |      26035.565147 s |      26035.565160 s |
    enp5s0-rx-0:164                | 0006 |      0.004 ms |         4 |      0.002 ms |      26035.928882 s |      26035.928884 s |
    enp5s0-tx-0:166                | 0008 |      0.003 ms |         3 |      0.002 ms |      26035.870923 s |      26035.870925 s |
   --------------------------------------------------------------------------------------------------------------------------------

  #

Signed-off-by: Yang Jihong <yangjihong1@huawei.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Clarke <pc@us.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20220709015033.38326-8-yangjihong1@huawei.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Yang Jihong 2022-07-09 09:50:23 +08:00 committed by Arnaldo Carvalho de Melo
parent f98919ec4f
commit 94348520c6
1 changed files with 61 additions and 2 deletions
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63
tools/perf/builtin-kwork.c
View File

@ -479,16 +479,75 @@ static int report_exit_event(struct perf_kwork *kwork,
return 0;
}
static struct kwork_class kwork_irq;
static int process_irq_handler_entry_event(struct perf_tool *tool,
struct evsel *evsel,
struct perf_sample *sample,
struct machine *machine)
{
struct perf_kwork *kwork = container_of(tool, struct perf_kwork, tool);
if (kwork->tp_handler->entry_event)
return kwork->tp_handler->entry_event(kwork, &kwork_irq,
evsel, sample, machine);
return 0;
}
static int process_irq_handler_exit_event(struct perf_tool *tool,
struct evsel *evsel,
struct perf_sample *sample,
struct machine *machine)
{
struct perf_kwork *kwork = container_of(tool, struct perf_kwork, tool);
if (kwork->tp_handler->exit_event)
return kwork->tp_handler->exit_event(kwork, &kwork_irq,
evsel, sample, machine);
return 0;
}
const struct evsel_str_handler irq_tp_handlers[] = {
{ "irq:irq_handler_entry", NULL, },
{ "irq:irq_handler_exit", NULL, },
{ "irq:irq_handler_entry", process_irq_handler_entry_event, },
{ "irq:irq_handler_exit", process_irq_handler_exit_event, },
};
static int irq_class_init(struct kwork_class *class,
struct perf_session *session)
{
if (perf_session__set_tracepoints_handlers(session, irq_tp_handlers)) {
pr_err("Failed to set irq tracepoints handlers\n");
return -1;
}
class->work_root = RB_ROOT_CACHED;
return 0;
}
static void irq_work_init(struct kwork_class *class,
struct kwork_work *work,
struct evsel *evsel,
struct perf_sample *sample,
struct machine *machine __maybe_unused)
{
work->class = class;
work->cpu = sample->cpu;
work->id = evsel__intval(evsel, sample, "irq");
work->name = evsel__strval(evsel, sample, "name");
}
static void irq_work_name(struct kwork_work *work, char *buf, int len)
{
snprintf(buf, len, "%s:%" PRIu64 "", work->name, work->id);
}
static struct kwork_class kwork_irq = {
.name = "irq",
.type = KWORK_CLASS_IRQ,
.nr_tracepoints = 2,
.tp_handlers = irq_tp_handlers,
.class_init = irq_class_init,
.work_init = irq_work_init,
.work_name = irq_work_name,
};
const struct evsel_str_handler softirq_tp_handlers[] = {