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-rw-r--r--tools/perf/tests/perf-time-to-tsc.c162
1 files changed, 0 insertions, 162 deletions
diff --git a/tools/perf/tests/perf-time-to-tsc.c b/tools/perf/tests/perf-time-to-tsc.c
deleted file mode 100644
index 5f49484f1..000000000
--- a/tools/perf/tests/perf-time-to-tsc.c
+++ /dev/null
@@ -1,162 +0,0 @@
-#include <stdio.h>
-#include <unistd.h>
-#include <linux/types.h>
-#include <sys/prctl.h>
-
-#include "parse-events.h"
-#include "evlist.h"
-#include "evsel.h"
-#include "thread_map.h"
-#include "cpumap.h"
-#include "tsc.h"
-#include "tests.h"
-
-#define CHECK__(x) { \
- while ((x) < 0) { \
- pr_debug(#x " failed!\n"); \
- goto out_err; \
- } \
-}
-
-#define CHECK_NOT_NULL__(x) { \
- while ((x) == NULL) { \
- pr_debug(#x " failed!\n"); \
- goto out_err; \
- } \
-}
-
-/**
- * test__perf_time_to_tsc - test converting perf time to TSC.
- *
- * This function implements a test that checks that the conversion of perf time
- * to and from TSC is consistent with the order of events. If the test passes
- * %0 is returned, otherwise %-1 is returned. If TSC conversion is not
- * supported then then the test passes but " (not supported)" is printed.
- */
-int test__perf_time_to_tsc(void)
-{
- struct record_opts opts = {
- .mmap_pages = UINT_MAX,
- .user_freq = UINT_MAX,
- .user_interval = ULLONG_MAX,
- .freq = 4000,
- .target = {
- .uses_mmap = true,
- },
- .sample_time = true,
- };
- struct thread_map *threads = NULL;
- struct cpu_map *cpus = NULL;
- struct perf_evlist *evlist = NULL;
- struct perf_evsel *evsel = NULL;
- int err = -1, ret, i;
- const char *comm1, *comm2;
- struct perf_tsc_conversion tc;
- struct perf_event_mmap_page *pc;
- union perf_event *event;
- u64 test_tsc, comm1_tsc, comm2_tsc;
- u64 test_time, comm1_time = 0, comm2_time = 0;
-
- threads = thread_map__new(-1, getpid(), UINT_MAX);
- CHECK_NOT_NULL__(threads);
-
- cpus = cpu_map__new(NULL);
- CHECK_NOT_NULL__(cpus);
-
- evlist = perf_evlist__new();
- CHECK_NOT_NULL__(evlist);
-
- perf_evlist__set_maps(evlist, cpus, threads);
-
- CHECK__(parse_events(evlist, "cycles:u", NULL));
-
- perf_evlist__config(evlist, &opts);
-
- evsel = perf_evlist__first(evlist);
-
- evsel->attr.comm = 1;
- evsel->attr.disabled = 1;
- evsel->attr.enable_on_exec = 0;
-
- CHECK__(perf_evlist__open(evlist));
-
- CHECK__(perf_evlist__mmap(evlist, UINT_MAX, false));
-
- pc = evlist->mmap[0].base;
- ret = perf_read_tsc_conversion(pc, &tc);
- if (ret) {
- if (ret == -EOPNOTSUPP) {
- fprintf(stderr, " (not supported)");
- return 0;
- }
- goto out_err;
- }
-
- perf_evlist__enable(evlist);
-
- comm1 = "Test COMM 1";
- CHECK__(prctl(PR_SET_NAME, (unsigned long)comm1, 0, 0, 0));
-
- test_tsc = rdtsc();
-
- comm2 = "Test COMM 2";
- CHECK__(prctl(PR_SET_NAME, (unsigned long)comm2, 0, 0, 0));
-
- perf_evlist__disable(evlist);
-
- for (i = 0; i < evlist->nr_mmaps; i++) {
- while ((event = perf_evlist__mmap_read(evlist, i)) != NULL) {
- struct perf_sample sample;
-
- if (event->header.type != PERF_RECORD_COMM ||
- (pid_t)event->comm.pid != getpid() ||
- (pid_t)event->comm.tid != getpid())
- goto next_event;
-
- if (strcmp(event->comm.comm, comm1) == 0) {
- CHECK__(perf_evsel__parse_sample(evsel, event,
- &sample));
- comm1_time = sample.time;
- }
- if (strcmp(event->comm.comm, comm2) == 0) {
- CHECK__(perf_evsel__parse_sample(evsel, event,
- &sample));
- comm2_time = sample.time;
- }
-next_event:
- perf_evlist__mmap_consume(evlist, i);
- }
- }
-
- if (!comm1_time || !comm2_time)
- goto out_err;
-
- test_time = tsc_to_perf_time(test_tsc, &tc);
- comm1_tsc = perf_time_to_tsc(comm1_time, &tc);
- comm2_tsc = perf_time_to_tsc(comm2_time, &tc);
-
- pr_debug("1st event perf time %"PRIu64" tsc %"PRIu64"\n",
- comm1_time, comm1_tsc);
- pr_debug("rdtsc time %"PRIu64" tsc %"PRIu64"\n",
- test_time, test_tsc);
- pr_debug("2nd event perf time %"PRIu64" tsc %"PRIu64"\n",
- comm2_time, comm2_tsc);
-
- if (test_time <= comm1_time ||
- test_time >= comm2_time)
- goto out_err;
-
- if (test_tsc <= comm1_tsc ||
- test_tsc >= comm2_tsc)
- goto out_err;
-
- err = 0;
-
-out_err:
- if (evlist) {
- perf_evlist__disable(evlist);
- perf_evlist__delete(evlist);
- }
-
- return err;
-}