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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-11 08:27:49 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-11 08:27:49 +0000 |
commit | ace9429bb58fd418f0c81d4c2835699bddf6bde6 (patch) | |
tree | b2d64bc10158fdd5497876388cd68142ca374ed3 /tools/perf/tests/expr.c | |
parent | Initial commit. (diff) | |
download | linux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.tar.xz linux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.zip |
Adding upstream version 6.6.15.upstream/6.6.15
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'tools/perf/tests/expr.c')
-rw-r--r-- | tools/perf/tests/expr.c | 269 |
1 files changed, 269 insertions, 0 deletions
diff --git a/tools/perf/tests/expr.c b/tools/perf/tests/expr.c new file mode 100644 index 0000000000..81229fa4f1 --- /dev/null +++ b/tools/perf/tests/expr.c @@ -0,0 +1,269 @@ +// SPDX-License-Identifier: GPL-2.0 +#include "util/cputopo.h" +#include "util/debug.h" +#include "util/expr.h" +#include "util/hashmap.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_online, 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, "100 if 1 else 200 if 1 else 300", 100); + ret |= test(ctx, "100 if 0 else 200 if 1 else 300", 200); + ret |= test(ctx, "100 if 1 else 200 if 0 else 300", 100); + ret |= test(ctx, "100 if 0 else 200 if 0 else 300", 300); + 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 == 0); + TEST_ASSERT_VAL("division by zero", isnan(val)); + + 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", &val_ptr)); + TEST_ASSERT_VAL("find ids", hashmap__find(ctx->ids, "BAZ", &val_ptr)); + TEST_ASSERT_VAL("find ids", hashmap__find(ctx->ids, "BOZO", &val_ptr)); + + expr__ctx_clear(ctx); + ctx->sctx.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@", &val_ptr)); + TEST_ASSERT_VAL("find ids", hashmap__find(ctx->ids, "EVENT2,param=3@", &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", &val_ptr)); + TEST_ASSERT_VAL("find ids", hashmap__find(ctx->ids, "dash-event2", &val_ptr)); + + /* Only EVENT1 or EVENT2 need be measured depending on the value of smt_on. */ + { + bool smton = smt_on(); + bool corewide = core_wide(/*system_wide=*/false, + /*user_requested_cpus=*/false); + + 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, + smton ? "EVENT1" : "EVENT2", + &val_ptr)); + + expr__ctx_clear(ctx); + TEST_ASSERT_VAL("find ids", + expr__find_ids("EVENT1 if #core_wide else EVENT2", + NULL, ctx) == 0); + TEST_ASSERT_VAL("find ids", hashmap__size(ctx->ids) == 1); + TEST_ASSERT_VAL("find ids", hashmap__find(ctx->ids, + corewide ? "EVENT1" : "EVENT2", + &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); + + /* The expression is a constant 0.0 without needing to evaluate EVENT1. */ + expr__ctx_clear(ctx); + TEST_ASSERT_VAL("find ids", + expr__find_ids("0 & EVENT1 > 0", NULL, ctx) == 0); + TEST_ASSERT_VAL("find ids", hashmap__size(ctx->ids) == 0); + expr__ctx_clear(ctx); + TEST_ASSERT_VAL("find ids", + expr__find_ids("EVENT1 > 0 & 0", NULL, ctx) == 0); + TEST_ASSERT_VAL("find ids", hashmap__size(ctx->ids) == 0); + expr__ctx_clear(ctx); + TEST_ASSERT_VAL("find ids", + expr__find_ids("1 & EVENT1 > 0", NULL, ctx) == 0); + TEST_ASSERT_VAL("find ids", hashmap__size(ctx->ids) == 1); + TEST_ASSERT_VAL("find ids", hashmap__find(ctx->ids, "EVENT1", &val_ptr)); + expr__ctx_clear(ctx); + TEST_ASSERT_VAL("find ids", + expr__find_ids("EVENT1 > 0 & 1", NULL, ctx) == 0); + TEST_ASSERT_VAL("find ids", hashmap__size(ctx->ids) == 1); + TEST_ASSERT_VAL("find ids", hashmap__find(ctx->ids, "EVENT1", &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 | EVENT1 > 0", NULL, ctx) == 0); + TEST_ASSERT_VAL("find ids", hashmap__size(ctx->ids) == 0); + expr__ctx_clear(ctx); + TEST_ASSERT_VAL("find ids", + expr__find_ids("EVENT1 > 0 | 1", NULL, ctx) == 0); + TEST_ASSERT_VAL("find ids", hashmap__size(ctx->ids) == 0); + expr__ctx_clear(ctx); + TEST_ASSERT_VAL("find ids", + expr__find_ids("0 | EVENT1 > 0", NULL, ctx) == 0); + TEST_ASSERT_VAL("find ids", hashmap__size(ctx->ids) == 1); + TEST_ASSERT_VAL("find ids", hashmap__find(ctx->ids, "EVENT1", &val_ptr)); + expr__ctx_clear(ctx); + TEST_ASSERT_VAL("find ids", + expr__find_ids("EVENT1 > 0 | 0", NULL, ctx) == 0); + TEST_ASSERT_VAL("find ids", hashmap__size(ctx->ids) == 1); + TEST_ASSERT_VAL("find ids", hashmap__find(ctx->ids, "EVENT1", &val_ptr)); + + /* Test toplogy constants appear well ordered. */ + expr__ctx_clear(ctx); + TEST_ASSERT_VAL("#num_cpus_online", + expr__parse(&num_cpus_online, ctx, "#num_cpus_online") == 0); + TEST_ASSERT_VAL("#num_cpus", expr__parse(&num_cpus, ctx, "#num_cpus") == 0); + TEST_ASSERT_VAL("#num_cpus >= #num_cpus_online", num_cpus >= num_cpus_online); + 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", &val_ptr)); + + /* has_event returns 1 when an event exists. */ + expr__add_id_val(ctx, strdup("cycles"), 2); + ret = test(ctx, "has_event(cycles)", 1); + + expr__ctx_free(ctx); + + return 0; +} + +DEFINE_SUITE("Simple expression parser", expr); |