Commit 6923397c authored by Ian Rogers's avatar Ian Rogers Committed by Arnaldo Carvalho de Melo
Browse files

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: default avatarKan Liang <kan.liang@linux.intel.com>
Signed-off-by: default avatarIan 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: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent 1276ade6

tools/perf/tests/expr.c

+13 −0
Original line number Diff line number Diff line 
// 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.