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perf test: Introduce --list-workloads to list the available workloads

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Using it:

  $ perf test -w noplop
  No workload found: noplop
  $
  $ perf test -w
   Error: switch `w' requires a value
   Usage: perf test [<options>] [{list <test-name-fragment>|[<test-name-fragments>|<test-numbers>]}]

      -w, --workload <work>
                            workload to run for testing, use '--list-workloads' to list the available ones.
  $
  $ perf test --list-workloads
  noploop
  thloop
  leafloop
  sqrtloop
  brstack
  datasym
  landlock
  $

Would be good at some point to have a description in 'struct test_workload'.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Reviewed-by: James Clark <james.clark@linaro.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Clark Williams <williams@redhat.com>
Link: https://lore.kernel.org/r/20241020021842.1752770-3-acme@kernel.org
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
This commit is contained in:
Arnaldo Carvalho de Melo 2024-10-19 23:18:41 -03:00 committed by Namhyung Kim
parent 18b63d63cd
commit 13c138308d
1 changed files with 19 additions and 1 deletions
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20
tools/perf/tests/builtin-test.c
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@ -505,6 +505,17 @@ static int perf_test__list(int argc, const char **argv)
return 0;
}
static int workloads__fprintf_list(FILE *fp)
{
struct test_workload *twl;
int printed = 0;
workloads__for_each(twl)
printed += fprintf(fp, "%s\n", twl->name);
return printed;
}
static int run_workload(const char *work, int argc, const char **argv)
{
struct test_workload *twl;
@ -535,6 +546,7 @@ int cmd_test(int argc, const char **argv)
};
const char *skip = NULL;
const char *workload = NULL;
bool list_workloads = false;
const struct option test_options[] = {
OPT_STRING('s', "skip", &skip, "tests", "tests to skip"),
OPT_INCR('v', "verbose", &verbose,
@ -544,7 +556,8 @@ int cmd_test(int argc, const char **argv)
OPT_BOOLEAN('p', "parallel", &parallel, "Run the tests in parallel"),
OPT_BOOLEAN('S', "sequential", &sequential,
"Run the tests one after another rather than in parallel"),
OPT_STRING('w', "workload", &workload, "work", "workload to run for testing"),
OPT_STRING('w', "workload", &workload, "work", "workload to run for testing, use '--list-workloads' to list the available ones."),
OPT_BOOLEAN(0, "list-workloads", &list_workloads, "List the available builtin workloads to use with -w/--workload"),
OPT_STRING(0, "dso", &dso_to_test, "dso", "dso to test"),
OPT_STRING(0, "objdump", &test_objdump_path, "path",
"objdump binary to use for disassembly and annotations"),
@ -570,6 +583,11 @@ int cmd_test(int argc, const char **argv)
if (workload)
return run_workload(workload, argc, argv);
if (list_workloads) {
workloads__fprintf_list(stdout);
return 0;
}
if (dont_fork)
sequential = true;
else if (parallel)