// SPDX-License-Identifier: GPL-2.0
|
#include "perf.h"
|
#include "util/debug.h"
|
#include "util/symbol.h"
|
#include "util/sort.h"
|
#include "util/evsel.h"
|
#include "util/event.h"
|
#include "util/evlist.h"
|
#include "util/machine.h"
|
#include "util/thread.h"
|
#include "util/parse-events.h"
|
#include "tests/tests.h"
|
#include "tests/hists_common.h"
|
#include <linux/kernel.h>
|
|
struct sample {
|
u32 pid;
|
u64 ip;
|
struct thread *thread;
|
struct map *map;
|
struct symbol *sym;
|
int socket;
|
};
|
|
/* For the numbers, see hists_common.c */
|
static struct sample fake_samples[] = {
|
/* perf [kernel] schedule() */
|
{ .pid = FAKE_PID_PERF1, .ip = FAKE_IP_KERNEL_SCHEDULE, .socket = 0 },
|
/* perf [perf] main() */
|
{ .pid = FAKE_PID_PERF1, .ip = FAKE_IP_PERF_MAIN, .socket = 0 },
|
/* perf [libc] malloc() */
|
{ .pid = FAKE_PID_PERF1, .ip = FAKE_IP_LIBC_MALLOC, .socket = 0 },
|
/* perf [perf] main() */
|
{ .pid = FAKE_PID_PERF2, .ip = FAKE_IP_PERF_MAIN, .socket = 0 }, /* will be merged */
|
/* perf [perf] cmd_record() */
|
{ .pid = FAKE_PID_PERF2, .ip = FAKE_IP_PERF_CMD_RECORD, .socket = 1 },
|
/* perf [kernel] page_fault() */
|
{ .pid = FAKE_PID_PERF2, .ip = FAKE_IP_KERNEL_PAGE_FAULT, .socket = 1 },
|
/* bash [bash] main() */
|
{ .pid = FAKE_PID_BASH, .ip = FAKE_IP_BASH_MAIN, .socket = 2 },
|
/* bash [bash] xmalloc() */
|
{ .pid = FAKE_PID_BASH, .ip = FAKE_IP_BASH_XMALLOC, .socket = 2 },
|
/* bash [libc] malloc() */
|
{ .pid = FAKE_PID_BASH, .ip = FAKE_IP_LIBC_MALLOC, .socket = 3 },
|
/* bash [kernel] page_fault() */
|
{ .pid = FAKE_PID_BASH, .ip = FAKE_IP_KERNEL_PAGE_FAULT, .socket = 3 },
|
};
|
|
static int add_hist_entries(struct perf_evlist *evlist,
|
struct machine *machine)
|
{
|
struct perf_evsel *evsel;
|
struct addr_location al;
|
struct perf_sample sample = { .period = 100, };
|
size_t i;
|
|
/*
|
* each evsel will have 10 samples but the 4th sample
|
* (perf [perf] main) will be collapsed to an existing entry
|
* so total 9 entries will be in the tree.
|
*/
|
evlist__for_each_entry(evlist, evsel) {
|
for (i = 0; i < ARRAY_SIZE(fake_samples); i++) {
|
struct hist_entry_iter iter = {
|
.evsel = evsel,
|
.sample = &sample,
|
.ops = &hist_iter_normal,
|
.hide_unresolved = false,
|
};
|
struct hists *hists = evsel__hists(evsel);
|
|
/* make sure it has no filter at first */
|
hists->thread_filter = NULL;
|
hists->dso_filter = NULL;
|
hists->symbol_filter_str = NULL;
|
|
sample.cpumode = PERF_RECORD_MISC_USER;
|
sample.pid = fake_samples[i].pid;
|
sample.tid = fake_samples[i].pid;
|
sample.ip = fake_samples[i].ip;
|
|
if (machine__resolve(machine, &al, &sample) < 0)
|
goto out;
|
|
al.socket = fake_samples[i].socket;
|
if (hist_entry_iter__add(&iter, &al,
|
sysctl_perf_event_max_stack, NULL) < 0) {
|
addr_location__put(&al);
|
goto out;
|
}
|
|
fake_samples[i].thread = al.thread;
|
fake_samples[i].map = al.map;
|
fake_samples[i].sym = al.sym;
|
}
|
}
|
|
return 0;
|
|
out:
|
pr_debug("Not enough memory for adding a hist entry\n");
|
return TEST_FAIL;
|
}
|
|
int test__hists_filter(struct test *test __maybe_unused, int subtest __maybe_unused)
|
{
|
int err = TEST_FAIL;
|
struct machines machines;
|
struct machine *machine;
|
struct perf_evsel *evsel;
|
struct perf_evlist *evlist = perf_evlist__new();
|
|
TEST_ASSERT_VAL("No memory", evlist);
|
|
err = parse_events(evlist, "cpu-clock", NULL);
|
if (err)
|
goto out;
|
err = parse_events(evlist, "task-clock", NULL);
|
if (err)
|
goto out;
|
err = TEST_FAIL;
|
|
/* default sort order (comm,dso,sym) will be used */
|
if (setup_sorting(NULL) < 0)
|
goto out;
|
|
machines__init(&machines);
|
|
/* setup threads/dso/map/symbols also */
|
machine = setup_fake_machine(&machines);
|
if (!machine)
|
goto out;
|
|
if (verbose > 1)
|
machine__fprintf(machine, stderr);
|
|
/* process sample events */
|
err = add_hist_entries(evlist, machine);
|
if (err < 0)
|
goto out;
|
|
evlist__for_each_entry(evlist, evsel) {
|
struct hists *hists = evsel__hists(evsel);
|
|
hists__collapse_resort(hists, NULL);
|
perf_evsel__output_resort(evsel, NULL);
|
|
if (verbose > 2) {
|
pr_info("Normal histogram\n");
|
print_hists_out(hists);
|
}
|
|
TEST_ASSERT_VAL("Invalid nr samples",
|
hists->stats.nr_events[PERF_RECORD_SAMPLE] == 10);
|
TEST_ASSERT_VAL("Invalid nr hist entries",
|
hists->nr_entries == 9);
|
TEST_ASSERT_VAL("Invalid total period",
|
hists->stats.total_period == 1000);
|
TEST_ASSERT_VAL("Unmatched nr samples",
|
hists->stats.nr_events[PERF_RECORD_SAMPLE] ==
|
hists->stats.nr_non_filtered_samples);
|
TEST_ASSERT_VAL("Unmatched nr hist entries",
|
hists->nr_entries == hists->nr_non_filtered_entries);
|
TEST_ASSERT_VAL("Unmatched total period",
|
hists->stats.total_period ==
|
hists->stats.total_non_filtered_period);
|
|
/* now applying thread filter for 'bash' */
|
hists->thread_filter = fake_samples[9].thread;
|
hists__filter_by_thread(hists);
|
|
if (verbose > 2) {
|
pr_info("Histogram for thread filter\n");
|
print_hists_out(hists);
|
}
|
|
/* normal stats should be invariant */
|
TEST_ASSERT_VAL("Invalid nr samples",
|
hists->stats.nr_events[PERF_RECORD_SAMPLE] == 10);
|
TEST_ASSERT_VAL("Invalid nr hist entries",
|
hists->nr_entries == 9);
|
TEST_ASSERT_VAL("Invalid total period",
|
hists->stats.total_period == 1000);
|
|
/* but filter stats are changed */
|
TEST_ASSERT_VAL("Unmatched nr samples for thread filter",
|
hists->stats.nr_non_filtered_samples == 4);
|
TEST_ASSERT_VAL("Unmatched nr hist entries for thread filter",
|
hists->nr_non_filtered_entries == 4);
|
TEST_ASSERT_VAL("Unmatched total period for thread filter",
|
hists->stats.total_non_filtered_period == 400);
|
|
/* remove thread filter first */
|
hists->thread_filter = NULL;
|
hists__filter_by_thread(hists);
|
|
/* now applying dso filter for 'kernel' */
|
hists->dso_filter = fake_samples[0].map->dso;
|
hists__filter_by_dso(hists);
|
|
if (verbose > 2) {
|
pr_info("Histogram for dso filter\n");
|
print_hists_out(hists);
|
}
|
|
/* normal stats should be invariant */
|
TEST_ASSERT_VAL("Invalid nr samples",
|
hists->stats.nr_events[PERF_RECORD_SAMPLE] == 10);
|
TEST_ASSERT_VAL("Invalid nr hist entries",
|
hists->nr_entries == 9);
|
TEST_ASSERT_VAL("Invalid total period",
|
hists->stats.total_period == 1000);
|
|
/* but filter stats are changed */
|
TEST_ASSERT_VAL("Unmatched nr samples for dso filter",
|
hists->stats.nr_non_filtered_samples == 3);
|
TEST_ASSERT_VAL("Unmatched nr hist entries for dso filter",
|
hists->nr_non_filtered_entries == 3);
|
TEST_ASSERT_VAL("Unmatched total period for dso filter",
|
hists->stats.total_non_filtered_period == 300);
|
|
/* remove dso filter first */
|
hists->dso_filter = NULL;
|
hists__filter_by_dso(hists);
|
|
/*
|
* now applying symbol filter for 'main'. Also note that
|
* there's 3 samples that have 'main' symbol but the 4th
|
* entry of fake_samples was collapsed already so it won't
|
* be counted as a separate entry but the sample count and
|
* total period will be remained.
|
*/
|
hists->symbol_filter_str = "main";
|
hists__filter_by_symbol(hists);
|
|
if (verbose > 2) {
|
pr_info("Histogram for symbol filter\n");
|
print_hists_out(hists);
|
}
|
|
/* normal stats should be invariant */
|
TEST_ASSERT_VAL("Invalid nr samples",
|
hists->stats.nr_events[PERF_RECORD_SAMPLE] == 10);
|
TEST_ASSERT_VAL("Invalid nr hist entries",
|
hists->nr_entries == 9);
|
TEST_ASSERT_VAL("Invalid total period",
|
hists->stats.total_period == 1000);
|
|
/* but filter stats are changed */
|
TEST_ASSERT_VAL("Unmatched nr samples for symbol filter",
|
hists->stats.nr_non_filtered_samples == 3);
|
TEST_ASSERT_VAL("Unmatched nr hist entries for symbol filter",
|
hists->nr_non_filtered_entries == 2);
|
TEST_ASSERT_VAL("Unmatched total period for symbol filter",
|
hists->stats.total_non_filtered_period == 300);
|
|
/* remove symbol filter first */
|
hists->symbol_filter_str = NULL;
|
hists__filter_by_symbol(hists);
|
|
/* now applying socket filters */
|
hists->socket_filter = 2;
|
hists__filter_by_socket(hists);
|
|
if (verbose > 2) {
|
pr_info("Histogram for socket filters\n");
|
print_hists_out(hists);
|
}
|
|
/* normal stats should be invariant */
|
TEST_ASSERT_VAL("Invalid nr samples",
|
hists->stats.nr_events[PERF_RECORD_SAMPLE] == 10);
|
TEST_ASSERT_VAL("Invalid nr hist entries",
|
hists->nr_entries == 9);
|
TEST_ASSERT_VAL("Invalid total period",
|
hists->stats.total_period == 1000);
|
|
/* but filter stats are changed */
|
TEST_ASSERT_VAL("Unmatched nr samples for socket filter",
|
hists->stats.nr_non_filtered_samples == 2);
|
TEST_ASSERT_VAL("Unmatched nr hist entries for socket filter",
|
hists->nr_non_filtered_entries == 2);
|
TEST_ASSERT_VAL("Unmatched total period for socket filter",
|
hists->stats.total_non_filtered_period == 200);
|
|
/* remove socket filter first */
|
hists->socket_filter = -1;
|
hists__filter_by_socket(hists);
|
|
/* now applying all filters at once. */
|
hists->thread_filter = fake_samples[1].thread;
|
hists->dso_filter = fake_samples[1].map->dso;
|
hists__filter_by_thread(hists);
|
hists__filter_by_dso(hists);
|
|
if (verbose > 2) {
|
pr_info("Histogram for all filters\n");
|
print_hists_out(hists);
|
}
|
|
/* normal stats should be invariant */
|
TEST_ASSERT_VAL("Invalid nr samples",
|
hists->stats.nr_events[PERF_RECORD_SAMPLE] == 10);
|
TEST_ASSERT_VAL("Invalid nr hist entries",
|
hists->nr_entries == 9);
|
TEST_ASSERT_VAL("Invalid total period",
|
hists->stats.total_period == 1000);
|
|
/* but filter stats are changed */
|
TEST_ASSERT_VAL("Unmatched nr samples for all filter",
|
hists->stats.nr_non_filtered_samples == 2);
|
TEST_ASSERT_VAL("Unmatched nr hist entries for all filter",
|
hists->nr_non_filtered_entries == 1);
|
TEST_ASSERT_VAL("Unmatched total period for all filter",
|
hists->stats.total_non_filtered_period == 200);
|
}
|
|
|
err = TEST_OK;
|
|
out:
|
/* tear down everything */
|
perf_evlist__delete(evlist);
|
reset_output_field();
|
machines__exit(&machines);
|
|
return err;
|
}
|
