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perf metric: Add cache_miss_cycles to metric parse test
Adding test that compute metric with other metrics in it. cache_miss_cycles = metric:dcache_miss_cpi + metric:icache_miss_cycles Committer notes: Fixed up initializer to cope with: tests/parse-metric.c:242:7: error: missing field 'val' initializer [-Werror,-Wmissing-field-initializers] { 0 }, Signed-off-by: Jiri Olsa <jolsa@kernel.org> Reviewed-by: Kajol Jain <kjain@linux.ibm.com> Acked-by: Ian Rogers <irogers@google.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: John Garry <john.garry@huawei.com> Cc: Michael Petlan <mpetlan@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Clarke <pc@us.ibm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lore.kernel.org/lkml/20200719181320.785305-14-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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@ -11,6 +11,8 @@
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#include "debug.h"
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#include "expr.h"
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#include "stat.h"
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#include <perf/cpumap.h>
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#include <perf/evlist.h>
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static struct pmu_event pme_test[] = {
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{
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@ -22,6 +24,18 @@ static struct pmu_event pme_test[] = {
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"( 1 + cpu_clk_unhalted.one_thread_active / cpu_clk_unhalted.ref_xclk ) )))",
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.metric_name = "Frontend_Bound_SMT",
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},
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{
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.metric_expr = "l1d\\-loads\\-misses / inst_retired.any",
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.metric_name = "dcache_miss_cpi",
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},
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{
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.metric_expr = "l1i\\-loads\\-misses / inst_retired.any",
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.metric_name = "icache_miss_cycles",
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},
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{
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.metric_expr = "(dcache_miss_cpi + icache_miss_cycles)",
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.metric_name = "cache_miss_cycles",
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},
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};
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static struct pmu_events_map map = {
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@ -162,9 +176,28 @@ static int test_frontend(void)
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return 0;
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}
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static int test_cache_miss_cycles(void)
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{
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double ratio;
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struct value vals[] = {
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{ .event = "l1d-loads-misses", .val = 300 },
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{ .event = "l1i-loads-misses", .val = 200 },
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{ .event = "inst_retired.any", .val = 400 },
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{ .event = NULL, },
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};
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TEST_ASSERT_VAL("failed to compute metric",
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compute_metric("cache_miss_cycles", vals, &ratio) == 0);
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TEST_ASSERT_VAL("cache_miss_cycles failed, wrong ratio",
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ratio == 1.25);
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return 0;
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}
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int test__parse_metric(struct test *test __maybe_unused, int subtest __maybe_unused)
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{
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TEST_ASSERT_VAL("IPC failed", test_ipc() == 0);
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TEST_ASSERT_VAL("frontend failed", test_frontend() == 0);
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TEST_ASSERT_VAL("cache_miss_cycles failed", test_cache_miss_cycles() == 0);
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return 0;
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}
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