korg/linux
0
0
Fork 0
mirror of https://mirrors.bfsu.edu.cn/git/linux.git synced 2024-12-12 13:34:10 +08:00
Code Issues Packages Projects Releases Wiki Activity
4ee3c4da8b
linux/tools/perf/tests/expr.c
Ian Rogers 6923397cb7 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>
2022-07-25 12:29:07 -03:00

209 lines
6.5 KiB
C
Raw Blame History

// 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>
static int test_ids_union(void)
{
struct hashmap *ids1, *ids2;
/* Empty union. */
ids1 = ids__new();
TEST_ASSERT_VAL("ids__new", ids1);
ids2 = ids__new();
TEST_ASSERT_VAL("ids__new", ids2);
ids1 = ids__union(ids1, ids2);
TEST_ASSERT_EQUAL("union", (int)hashmap__size(ids1), 0);
/* Union {foo, bar} against {}. */
ids2 = ids__new();
TEST_ASSERT_VAL("ids__new", ids2);
TEST_ASSERT_EQUAL("ids__insert", ids__insert(ids1, strdup("foo")), 0);
TEST_ASSERT_EQUAL("ids__insert", ids__insert(ids1, strdup("bar")), 0);
ids1 = ids__union(ids1, ids2);
TEST_ASSERT_EQUAL("union", (int)hashmap__size(ids1), 2);
/* Union {foo, bar} against {foo}. */
ids2 = ids__new();
TEST_ASSERT_VAL("ids__new", ids2);
TEST_ASSERT_EQUAL("ids__insert", ids__insert(ids2, strdup("foo")), 0);
ids1 = ids__union(ids1, ids2);
TEST_ASSERT_EQUAL("union", (int)hashmap__size(ids1), 2);
/* Union {foo, bar} against {bar,baz}. */
ids2 = ids__new();
TEST_ASSERT_VAL("ids__new", ids2);
TEST_ASSERT_EQUAL("ids__insert", ids__insert(ids2, strdup("bar")), 0);
TEST_ASSERT_EQUAL("ids__insert", ids__insert(ids2, strdup("baz")), 0);
ids1 = ids__union(ids1, ids2);
TEST_ASSERT_EQUAL("union", (int)hashmap__size(ids1), 3);
ids__free(ids1);
return 0;
}
static int test(struct expr_parse_ctx *ctx, const char *e, double val2)
{
double val;
if (expr__parse(&val, ctx, e))
TEST_ASSERT_VAL("parse test failed", 0);
TEST_ASSERT_VAL("unexpected value", val == val2);
return 0;
}
static int test__expr(struct test_suite *t __maybe_unused, int subtest __maybe_unused)
{
struct expr_id_data *val_ptr;
const char *p;
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);
ctx = expr__ctx_new();
TEST_ASSERT_VAL("expr__ctx_new", ctx);
expr__add_id_val(ctx, strdup("FOO"), 1);
expr__add_id_val(ctx, strdup("BAR"), 2);
ret = test(ctx, "1+1", 2);
ret |= test(ctx, "FOO+BAR", 3);
ret |= test(ctx, "(BAR/2)%2", 1);
ret |= test(ctx, "1 - -4", 5);
ret |= test(ctx, "(FOO-1)*2 + (BAR/2)%2 - -4", 5);
ret |= test(ctx, "1-1 | 1", 1);
ret |= test(ctx, "1-1 & 1", 0);
ret |= test(ctx, "min(1,2) + 1", 2);
ret |= test(ctx, "max(1,2) + 1", 3);
ret |= test(ctx, "1+1 if 3*4 else 0", 2);
ret |= test(ctx, "1.1 + 2.1", 3.2);
ret |= test(ctx, ".1 + 2.", 2.1);
ret |= test(ctx, "d_ratio(1, 2)", 0.5);
ret |= test(ctx, "d_ratio(2.5, 0)", 0);
ret |= test(ctx, "1.1 < 2.2", 1);
ret |= test(ctx, "2.2 > 1.1", 1);
ret |= test(ctx, "1.1 < 1.1", 0);
ret |= test(ctx, "2.2 > 2.2", 0);
ret |= test(ctx, "2.2 < 1.1", 0);
ret |= test(ctx, "1.1 > 2.2", 0);
ret |= test(ctx, "1.1e10 < 1.1e100", 1);
ret |= test(ctx, "1.1e2 > 1.1e-2", 1);
if (ret) {
expr__ctx_free(ctx);
return ret;
}
p = "FOO/0";
ret = expr__parse(&val, ctx, p);
TEST_ASSERT_VAL("division by zero", ret == -1);
p = "BAR/";
ret = expr__parse(&val, ctx, p);
TEST_ASSERT_VAL("missing operand", ret == -1);
expr__ctx_clear(ctx);
TEST_ASSERT_VAL("find ids",
expr__find_ids("FOO + BAR + BAZ + BOZO", "FOO",
ctx) == 0);
TEST_ASSERT_VAL("find ids", hashmap__size(ctx->ids) == 3);
TEST_ASSERT_VAL("find ids", hashmap__find(ctx->ids, "BAR",
(void **)&val_ptr));
TEST_ASSERT_VAL("find ids", hashmap__find(ctx->ids, "BAZ",
(void **)&val_ptr));
TEST_ASSERT_VAL("find ids", hashmap__find(ctx->ids, "BOZO",
(void **)&val_ptr));
expr__ctx_clear(ctx);
ctx->runtime = 3;
TEST_ASSERT_VAL("find ids",
expr__find_ids("EVENT1\\,param\\=?@ + EVENT2\\,param\\=?@",
NULL, ctx) == 0);
TEST_ASSERT_VAL("find ids", hashmap__size(ctx->ids) == 2);
TEST_ASSERT_VAL("find ids", hashmap__find(ctx->ids, "EVENT1,param=3@",
(void **)&val_ptr));
TEST_ASSERT_VAL("find ids", hashmap__find(ctx->ids, "EVENT2,param=3@",
(void **)&val_ptr));
expr__ctx_clear(ctx);
TEST_ASSERT_VAL("find ids",
expr__find_ids("dash\\-event1 - dash\\-event2",
NULL, ctx) == 0);
TEST_ASSERT_VAL("find ids", hashmap__size(ctx->ids) == 2);
TEST_ASSERT_VAL("find ids", hashmap__find(ctx->ids, "dash-event1",
(void **)&val_ptr));
TEST_ASSERT_VAL("find ids", hashmap__find(ctx->ids, "dash-event2",
(void **)&val_ptr));
/* Only EVENT1 or EVENT2 need be measured depending on the value of smt_on. */
expr__ctx_clear(ctx);
TEST_ASSERT_VAL("find ids",
expr__find_ids("EVENT1 if #smt_on else EVENT2",
NULL, ctx) == 0);
TEST_ASSERT_VAL("find ids", hashmap__size(ctx->ids) == 1);
TEST_ASSERT_VAL("find ids", hashmap__find(ctx->ids,
smt_on() ? "EVENT1" : "EVENT2",
(void **)&val_ptr));
/* The expression is a constant 1.0 without needing to evaluate EVENT1. */
expr__ctx_clear(ctx);
TEST_ASSERT_VAL("find ids",
expr__find_ids("1.0 if EVENT1 > 100.0 else 1.0",
NULL, ctx) == 0);
TEST_ASSERT_VAL("find ids", hashmap__size(ctx->ids) == 0);
/* Test toplogy constants appear well ordered. */
expr__ctx_clear(ctx);
TEST_ASSERT_VAL("#num_cpus", expr__parse(&num_cpus, ctx, "#num_cpus") == 0);
TEST_ASSERT_VAL("#num_cores", expr__parse(&num_cores, ctx, "#num_cores") == 0);
TEST_ASSERT_VAL("#num_cpus >= #num_cores", num_cpus >= num_cores);
TEST_ASSERT_VAL("#num_dies", expr__parse(&num_dies, ctx, "#num_dies") == 0);
TEST_ASSERT_VAL("#num_cores >= #num_dies", num_cores >= num_dies);
TEST_ASSERT_VAL("#num_packages", expr__parse(&num_packages, ctx, "#num_packages") == 0);
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.
*/
expr__ctx_clear(ctx);
TEST_ASSERT_VAL("source count",
expr__find_ids("source_count(EVENT1)",
NULL, ctx) == 0);
TEST_ASSERT_VAL("source count", hashmap__size(ctx->ids) == 1);
TEST_ASSERT_VAL("source count", hashmap__find(ctx->ids, "EVENT1",
(void **)&val_ptr));
expr__ctx_free(ctx);
return 0;
}
DEFINE_SUITE("Simple expression parser", expr);
Reference in New Issue View Git Blame Copy Permalink