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perf test: Add test for #system_tsc_freq in metrics 

The value should be non-zero on Intel while zero on everything else.

Reviewed-by: Kan Liang <kan.liang@linux.intel.com>
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexandre Torgue <alexandre.torgue@foss.st.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Caleb Biggers <caleb.biggers@intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: John Garry <john.garry@huawei.com>
Cc: Kshipra Bopardikar <kshipra.bopardikar@intel.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Maxime Coquelin <mcoquelin.stm32@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Perry Taylor <perry.taylor@intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Link: https://lore.kernel.org/r/20220718164312.3994191-4-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Ian Rogers 2022-07-18 09:43:12 -07:00 committed by Arnaldo Carvalho de Melo
parent 1276ade6a5
commit 6923397cb7
1 changed files with 13 additions and 0 deletions
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13
tools/perf/tests/expr.c
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@ -1,8 +1,10 @@
// SPDX-License-Identifier: GPL-2.0
#include "util/debug.h"
#include "util/expr.h"
#include "util/header.h"
#include "util/smt.h"
#include "tests.h"
#include <math.h>
#include <stdlib.h>
#include <string.h>
#include <linux/zalloc.h>
@ -69,6 +71,11 @@ static int test__expr(struct test_suite *t __maybe_unused, int subtest __maybe_u
double val, num_cpus, num_cores, num_dies, num_packages;
int ret;
struct expr_parse_ctx *ctx;
bool is_intel = false;
char buf[128];
if (!get_cpuid(buf, sizeof(buf)))
is_intel = strstr(buf, "Intel") != NULL;
TEST_ASSERT_EQUAL("ids_union", test_ids_union(), 0);
@ -175,6 +182,12 @@ static int test__expr(struct test_suite *t __maybe_unused, int subtest __maybe_u
if (num_dies) // Some platforms do not have CPU die support, for example s390
TEST_ASSERT_VAL("#num_dies >= #num_packages", num_dies >= num_packages);
TEST_ASSERT_VAL("#system_tsc_freq", expr__parse(&val, ctx, "#system_tsc_freq") == 0);
if (is_intel)
TEST_ASSERT_VAL("#system_tsc_freq > 0", val > 0);
else
TEST_ASSERT_VAL("#system_tsc_freq == 0", fpclassify(val) == FP_ZERO);
/*
* Source count returns the number of events aggregating in a leader
* event including the leader. Check parsing yields an id.