[mirror_ubuntu-focal-kernel.git] / tools / perf / tests / hists_filter.c

#include "perf.h"
#include "util/debug.h"
#include "util/symbol.h"
#include "util/sort.h"
#include "util/evsel.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"

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(evlist, evsel) {
		for (i = 0; i < ARRAY_SIZE(fake_samples); i++) {
			const union perf_event event = {
				.header = {
					.misc = PERF_RECORD_MISC_USER,
				},
			};
			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.pid = fake_samples[i].pid;
			sample.tid = fake_samples[i].pid;
			sample.ip = fake_samples[i].ip;

			if (perf_event__preprocess_sample(&event, machine, &al,
							  &sample) < 0)
				goto out;

			al.socket = fake_samples[i].socket;
			if (hist_entry_iter__add(&iter, &al,
						 PERF_MAX_STACK_DEPTH, 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(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;

	/* 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(evlist, evsel) {
		struct hists *hists = evsel__hists(evsel);

		hists__collapse_resort(hists, NULL);
		hists__output_resort(hists, 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;
}
Commit	Line	Data
3c3cfd99 NK	1	#include "perf.h"
	2	#include "util/debug.h"
	3	#include "util/symbol.h"
	4	#include "util/sort.h"
	5	#include "util/evsel.h"
	6	#include "util/evlist.h"
	7	#include "util/machine.h"
	8	#include "util/thread.h"
	9	#include "util/parse-events.h"
	10	#include "tests/tests.h"
	11	#include "tests/hists_common.h"
	12
	13	struct sample {
	14	u32 pid;
	15	u64 ip;
	16	struct thread *thread;
	17	struct map *map;
	18	struct symbol *sym;
92d424ae	19	int socket;
3c3cfd99 NK	20	};
	21
	22	/* For the numbers, see hists_common.c */
	23	static struct sample fake_samples[] = {
	24	/* perf [kernel] schedule() */
92d424ae	25	{ .pid = FAKE_PID_PERF1, .ip = FAKE_IP_KERNEL_SCHEDULE, .socket = 0 },
3c3cfd99	26	/* perf [perf] main() */
92d424ae	27	{ .pid = FAKE_PID_PERF1, .ip = FAKE_IP_PERF_MAIN, .socket = 0 },
3c3cfd99	28	/* perf [libc] malloc() */
92d424ae	29	{ .pid = FAKE_PID_PERF1, .ip = FAKE_IP_LIBC_MALLOC, .socket = 0 },
3c3cfd99	30	/* perf [perf] main() */
92d424ae	31	{ .pid = FAKE_PID_PERF2, .ip = FAKE_IP_PERF_MAIN, .socket = 0 }, /* will be merged */
3c3cfd99	32	/* perf [perf] cmd_record() */
92d424ae	33	{ .pid = FAKE_PID_PERF2, .ip = FAKE_IP_PERF_CMD_RECORD, .socket = 1 },
3c3cfd99	34	/* perf [kernel] page_fault() */
92d424ae	35	{ .pid = FAKE_PID_PERF2, .ip = FAKE_IP_KERNEL_PAGE_FAULT, .socket = 1 },
3c3cfd99	36	/* bash [bash] main() */
92d424ae	37	{ .pid = FAKE_PID_BASH, .ip = FAKE_IP_BASH_MAIN, .socket = 2 },
3c3cfd99	38	/* bash [bash] xmalloc() */
92d424ae	39	{ .pid = FAKE_PID_BASH, .ip = FAKE_IP_BASH_XMALLOC, .socket = 2 },
3c3cfd99	40	/* bash [libc] malloc() */
92d424ae	41	{ .pid = FAKE_PID_BASH, .ip = FAKE_IP_LIBC_MALLOC, .socket = 3 },
3c3cfd99	42	/* bash [kernel] page_fault() */
92d424ae	43	{ .pid = FAKE_PID_BASH, .ip = FAKE_IP_KERNEL_PAGE_FAULT, .socket = 3 },
3c3cfd99 NK	44	};
3c3cfd99 NK	45
69bcb019	46	static int add_hist_entries(struct perf_evlist *evlist,
f498784c	47	struct machine *machine)
3c3cfd99 NK	48	{
	49	struct perf_evsel *evsel;
	50	struct addr_location al;
a1891aa4	51	struct perf_sample sample = { .period = 100, };
3c3cfd99 NK	52	size_t i;
	53
	54	/*
	55	* each evsel will have 10 samples but the 4th sample
	56	* (perf [perf] main) will be collapsed to an existing entry
	57	* so total 9 entries will be in the tree.
	58	*/
	59	evlist__for_each(evlist, evsel) {
	60	for (i = 0; i < ARRAY_SIZE(fake_samples); i++) {
	61	const union perf_event event = {
	62	.header = {
	63	.misc = PERF_RECORD_MISC_USER,
	64	},
	65	};
69bcb019	66	struct hist_entry_iter iter = {
063bd936 NK	67	.evsel = evsel,
063bd936 NK	68	.sample = &sample,
69bcb019 NK	69	.ops = &hist_iter_normal,
	70	.hide_unresolved = false,
	71	};
4ea062ed	72	struct hists *hists = evsel__hists(evsel);
3c3cfd99 NK	73
3c3cfd99 NK	74	/* make sure it has no filter at first */
4ea062ed ACM	75	hists->thread_filter = NULL;
	76	hists->dso_filter = NULL;
	77	hists->symbol_filter_str = NULL;
3c3cfd99 NK	78
3c3cfd99 NK	79	sample.pid = fake_samples[i].pid;
13ce34df	80	sample.tid = fake_samples[i].pid;
3c3cfd99 NK	81	sample.ip = fake_samples[i].ip;
	82
	83	if (perf_event__preprocess_sample(&event, machine, &al,
	84	&sample) < 0)
	85	goto out;
	86
92d424ae	87	al.socket = fake_samples[i].socket;
063bd936	88	if (hist_entry_iter__add(&iter, &al,
b91fc39f ACM	89	PERF_MAX_STACK_DEPTH, NULL) < 0) {
b91fc39f ACM	90	addr_location__put(&al);
3c3cfd99	91	goto out;
b91fc39f	92	}
3c3cfd99 NK	93
	94	fake_samples[i].thread = al.thread;
	95	fake_samples[i].map = al.map;
	96	fake_samples[i].sym = al.sym;
3c3cfd99 NK	97	}
	98	}
	99
	100	return 0;
	101
	102	out:
	103	pr_debug("Not enough memory for adding a hist entry\n");
	104	return TEST_FAIL;
	105	}
	106
721a1f53	107	int test__hists_filter(int subtest __maybe_unused)
3c3cfd99 NK	108	{
	109	int err = TEST_FAIL;
	110	struct machines machines;
	111	struct machine *machine;
	112	struct perf_evsel *evsel;
	113	struct perf_evlist *evlist = perf_evlist__new();
	114
	115	TEST_ASSERT_VAL("No memory", evlist);
	116
b39b8393	117	err = parse_events(evlist, "cpu-clock", NULL);
3c3cfd99 NK	118	if (err)
3c3cfd99 NK	119	goto out;
b39b8393	120	err = parse_events(evlist, "task-clock", NULL);
3c3cfd99 NK	121	if (err)
	122	goto out;
	123
	124	/* default sort order (comm,dso,sym) will be used */
40184c46	125	if (setup_sorting(NULL) < 0)
3c3cfd99 NK	126	goto out;
	127
	128	machines__init(&machines);
	129
	130	/* setup threads/dso/map/symbols also */
	131	machine = setup_fake_machine(&machines);
	132	if (!machine)
	133	goto out;
	134
	135	if (verbose > 1)
	136	machine__fprintf(machine, stderr);
	137
	138	/* process sample events */
	139	err = add_hist_entries(evlist, machine);
	140	if (err < 0)
	141	goto out;
	142
	143	evlist__for_each(evlist, evsel) {
4ea062ed	144	struct hists *hists = evsel__hists(evsel);
3c3cfd99 NK	145
3c3cfd99 NK	146	hists__collapse_resort(hists, NULL);
740b97f9	147	hists__output_resort(hists, NULL);
3c3cfd99 NK	148
	149	if (verbose > 2) {
	150	pr_info("Normal histogram\n");
4e754e1c	151	print_hists_out(hists);
3c3cfd99 NK	152	}
	153
	154	TEST_ASSERT_VAL("Invalid nr samples",
	155	hists->stats.nr_events[PERF_RECORD_SAMPLE] == 10);
	156	TEST_ASSERT_VAL("Invalid nr hist entries",
	157	hists->nr_entries == 9);
	158	TEST_ASSERT_VAL("Invalid total period",
	159	hists->stats.total_period == 1000);
	160	TEST_ASSERT_VAL("Unmatched nr samples",
	161	hists->stats.nr_events[PERF_RECORD_SAMPLE] ==
	162	hists->stats.nr_non_filtered_samples);
	163	TEST_ASSERT_VAL("Unmatched nr hist entries",
	164	hists->nr_entries == hists->nr_non_filtered_entries);
	165	TEST_ASSERT_VAL("Unmatched total period",
	166	hists->stats.total_period ==
	167	hists->stats.total_non_filtered_period);
	168
	169	/* now applying thread filter for 'bash' */
4ea062ed	170	hists->thread_filter = fake_samples[9].thread;
3c3cfd99 NK	171	hists__filter_by_thread(hists);
	172
	173	if (verbose > 2) {
	174	pr_info("Histogram for thread filter\n");
4e754e1c	175	print_hists_out(hists);
3c3cfd99 NK	176	}
	177
	178	/* normal stats should be invariant */
	179	TEST_ASSERT_VAL("Invalid nr samples",
	180	hists->stats.nr_events[PERF_RECORD_SAMPLE] == 10);
	181	TEST_ASSERT_VAL("Invalid nr hist entries",
	182	hists->nr_entries == 9);
	183	TEST_ASSERT_VAL("Invalid total period",
	184	hists->stats.total_period == 1000);
	185
	186	/* but filter stats are changed */
	187	TEST_ASSERT_VAL("Unmatched nr samples for thread filter",
	188	hists->stats.nr_non_filtered_samples == 4);
	189	TEST_ASSERT_VAL("Unmatched nr hist entries for thread filter",
	190	hists->nr_non_filtered_entries == 4);
	191	TEST_ASSERT_VAL("Unmatched total period for thread filter",
	192	hists->stats.total_non_filtered_period == 400);
	193
	194	/* remove thread filter first */
4ea062ed	195	hists->thread_filter = NULL;
3c3cfd99 NK	196	hists__filter_by_thread(hists);
	197
	198	/* now applying dso filter for 'kernel' */
4ea062ed	199	hists->dso_filter = fake_samples[0].map->dso;
3c3cfd99 NK	200	hists__filter_by_dso(hists);
	201
	202	if (verbose > 2) {
	203	pr_info("Histogram for dso filter\n");
4e754e1c	204	print_hists_out(hists);
3c3cfd99 NK	205	}
	206
	207	/* normal stats should be invariant */
	208	TEST_ASSERT_VAL("Invalid nr samples",
	209	hists->stats.nr_events[PERF_RECORD_SAMPLE] == 10);
	210	TEST_ASSERT_VAL("Invalid nr hist entries",
	211	hists->nr_entries == 9);
	212	TEST_ASSERT_VAL("Invalid total period",
	213	hists->stats.total_period == 1000);
	214
	215	/* but filter stats are changed */
	216	TEST_ASSERT_VAL("Unmatched nr samples for dso filter",
	217	hists->stats.nr_non_filtered_samples == 3);
	218	TEST_ASSERT_VAL("Unmatched nr hist entries for dso filter",
	219	hists->nr_non_filtered_entries == 3);
	220	TEST_ASSERT_VAL("Unmatched total period for dso filter",
	221	hists->stats.total_non_filtered_period == 300);
	222
	223	/* remove dso filter first */
4ea062ed	224	hists->dso_filter = NULL;
3c3cfd99 NK	225	hists__filter_by_dso(hists);
	226
	227	/*
	228	* now applying symbol filter for 'main'. Also note that
	229	* there's 3 samples that have 'main' symbol but the 4th
	230	* entry of fake_samples was collapsed already so it won't
	231	* be counted as a separate entry but the sample count and
	232	* total period will be remained.
	233	*/
4ea062ed	234	hists->symbol_filter_str = "main";
3c3cfd99 NK	235	hists__filter_by_symbol(hists);
	236
	237	if (verbose > 2) {
	238	pr_info("Histogram for symbol filter\n");
4e754e1c	239	print_hists_out(hists);
3c3cfd99 NK	240	}
	241
	242	/* normal stats should be invariant */
	243	TEST_ASSERT_VAL("Invalid nr samples",
	244	hists->stats.nr_events[PERF_RECORD_SAMPLE] == 10);
	245	TEST_ASSERT_VAL("Invalid nr hist entries",
	246	hists->nr_entries == 9);
	247	TEST_ASSERT_VAL("Invalid total period",
	248	hists->stats.total_period == 1000);
	249
	250	/* but filter stats are changed */
	251	TEST_ASSERT_VAL("Unmatched nr samples for symbol filter",
	252	hists->stats.nr_non_filtered_samples == 3);
	253	TEST_ASSERT_VAL("Unmatched nr hist entries for symbol filter",
	254	hists->nr_non_filtered_entries == 2);
	255	TEST_ASSERT_VAL("Unmatched total period for symbol filter",
	256	hists->stats.total_non_filtered_period == 300);
	257
92d424ae KL	258	/* remove symbol filter first */
	259	hists->symbol_filter_str = NULL;
	260	hists__filter_by_symbol(hists);
	261
	262	/* now applying socket filters */
	263	hists->socket_filter = 2;
	264	hists__filter_by_socket(hists);
	265
	266	if (verbose > 2) {
	267	pr_info("Histogram for socket filters\n");
	268	print_hists_out(hists);
	269	}
	270
	271	/* normal stats should be invariant */
	272	TEST_ASSERT_VAL("Invalid nr samples",
	273	hists->stats.nr_events[PERF_RECORD_SAMPLE] == 10);
	274	TEST_ASSERT_VAL("Invalid nr hist entries",
	275	hists->nr_entries == 9);
	276	TEST_ASSERT_VAL("Invalid total period",
	277	hists->stats.total_period == 1000);
	278
	279	/* but filter stats are changed */
	280	TEST_ASSERT_VAL("Unmatched nr samples for socket filter",
	281	hists->stats.nr_non_filtered_samples == 2);
	282	TEST_ASSERT_VAL("Unmatched nr hist entries for socket filter",
	283	hists->nr_non_filtered_entries == 2);
	284	TEST_ASSERT_VAL("Unmatched total period for socket filter",
	285	hists->stats.total_non_filtered_period == 200);
	286
	287	/* remove socket filter first */
	288	hists->socket_filter = -1;
	289	hists__filter_by_socket(hists);
	290
3c3cfd99	291	/* now applying all filters at once. */
4ea062ed ACM	292	hists->thread_filter = fake_samples[1].thread;
4ea062ed ACM	293	hists->dso_filter = fake_samples[1].map->dso;
3c3cfd99 NK	294	hists__filter_by_thread(hists);
	295	hists__filter_by_dso(hists);
	296
	297	if (verbose > 2) {
	298	pr_info("Histogram for all filters\n");
4e754e1c	299	print_hists_out(hists);
3c3cfd99 NK	300	}
	301
	302	/* normal stats should be invariant */
	303	TEST_ASSERT_VAL("Invalid nr samples",
	304	hists->stats.nr_events[PERF_RECORD_SAMPLE] == 10);
	305	TEST_ASSERT_VAL("Invalid nr hist entries",
	306	hists->nr_entries == 9);
	307	TEST_ASSERT_VAL("Invalid total period",
	308	hists->stats.total_period == 1000);
	309
	310	/* but filter stats are changed */
	311	TEST_ASSERT_VAL("Unmatched nr samples for all filter",
	312	hists->stats.nr_non_filtered_samples == 2);
	313	TEST_ASSERT_VAL("Unmatched nr hist entries for all filter",
	314	hists->nr_non_filtered_entries == 1);
	315	TEST_ASSERT_VAL("Unmatched total period for all filter",
	316	hists->stats.total_non_filtered_period == 200);
	317	}
	318
	319
	320	err = TEST_OK;
	321
	322	out:
	323	/* tear down everything */
	324	perf_evlist__delete(evlist);
f21d1815	325	reset_output_field();
3c3cfd99 NK	326	machines__exit(&machines);
	327
	328	return err;
	329	}