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

// SPDX-License-Identifier: GPL-2.0
#include "util/debug.h"
#include "util/map.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/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 evlist *evlist,
			    struct machine *machine)
{
	struct 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 evsel *evsel;
	struct evlist *evlist = 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 */
	evlist__delete(evlist);
	reset_output_field();
	machines__exit(&machines);

	return err;
}
Commit	Line	Data
b2441318	1	// SPDX-License-Identifier: GPL-2.0
3c3cfd99	2	#include "util/debug.h"
1101f69a	3	#include "util/map.h"
3c3cfd99 NK	4	#include "util/symbol.h"
	5	#include "util/sort.h"
	6	#include "util/evsel.h"
5ab8c689	7	#include "util/event.h"
3c3cfd99 NK	8	#include "util/evlist.h"
3c3cfd99 NK	9	#include "util/machine.h"
3c3cfd99 NK	10	#include "util/parse-events.h"
	11	#include "tests/tests.h"
	12	#include "tests/hists_common.h"
877a7a11	13	#include <linux/kernel.h>
3c3cfd99 NK	14
	15	struct sample {
	16	u32 pid;
	17	u64 ip;
	18	struct thread *thread;
	19	struct map *map;
	20	struct symbol *sym;
92d424ae	21	int socket;
3c3cfd99 NK	22	};
	23
	24	/* For the numbers, see hists_common.c */
	25	static struct sample fake_samples[] = {
	26	/* perf [kernel] schedule() */
92d424ae	27	{ .pid = FAKE_PID_PERF1, .ip = FAKE_IP_KERNEL_SCHEDULE, .socket = 0 },
3c3cfd99	28	/* perf [perf] main() */
92d424ae	29	{ .pid = FAKE_PID_PERF1, .ip = FAKE_IP_PERF_MAIN, .socket = 0 },
3c3cfd99	30	/* perf [libc] malloc() */
92d424ae	31	{ .pid = FAKE_PID_PERF1, .ip = FAKE_IP_LIBC_MALLOC, .socket = 0 },
3c3cfd99	32	/* perf [perf] main() */
92d424ae	33	{ .pid = FAKE_PID_PERF2, .ip = FAKE_IP_PERF_MAIN, .socket = 0 }, /* will be merged */
3c3cfd99	34	/* perf [perf] cmd_record() */
92d424ae	35	{ .pid = FAKE_PID_PERF2, .ip = FAKE_IP_PERF_CMD_RECORD, .socket = 1 },
3c3cfd99	36	/* perf [kernel] page_fault() */
92d424ae	37	{ .pid = FAKE_PID_PERF2, .ip = FAKE_IP_KERNEL_PAGE_FAULT, .socket = 1 },
3c3cfd99	38	/* bash [bash] main() */
92d424ae	39	{ .pid = FAKE_PID_BASH, .ip = FAKE_IP_BASH_MAIN, .socket = 2 },
3c3cfd99	40	/* bash [bash] xmalloc() */
92d424ae	41	{ .pid = FAKE_PID_BASH, .ip = FAKE_IP_BASH_XMALLOC, .socket = 2 },
3c3cfd99	42	/* bash [libc] malloc() */
92d424ae	43	{ .pid = FAKE_PID_BASH, .ip = FAKE_IP_LIBC_MALLOC, .socket = 3 },
3c3cfd99	44	/* bash [kernel] page_fault() */
92d424ae	45	{ .pid = FAKE_PID_BASH, .ip = FAKE_IP_KERNEL_PAGE_FAULT, .socket = 3 },
3c3cfd99 NK	46	};
3c3cfd99 NK	47
63503dba	48	static int add_hist_entries(struct evlist *evlist,
f498784c	49	struct machine *machine)
3c3cfd99	50	{
32dcd021	51	struct evsel *evsel;
3c3cfd99	52	struct addr_location al;
a1891aa4	53	struct perf_sample sample = { .period = 100, };
3c3cfd99 NK	54	size_t i;
	55
	56	/*
	57	* each evsel will have 10 samples but the 4th sample
	58	* (perf [perf] main) will be collapsed to an existing entry
	59	* so total 9 entries will be in the tree.
	60	*/
e5cadb93	61	evlist__for_each_entry(evlist, evsel) {
3c3cfd99	62	for (i = 0; i < ARRAY_SIZE(fake_samples); i++) {
69bcb019	63	struct hist_entry_iter iter = {
063bd936 NK	64	.evsel = evsel,
063bd936 NK	65	.sample = &sample,
69bcb019 NK	66	.ops = &hist_iter_normal,
	67	.hide_unresolved = false,
	68	};
4ea062ed	69	struct hists *hists = evsel__hists(evsel);
3c3cfd99 NK	70
3c3cfd99 NK	71	/* make sure it has no filter at first */
4ea062ed ACM	72	hists->thread_filter = NULL;
	73	hists->dso_filter = NULL;
	74	hists->symbol_filter_str = NULL;
3c3cfd99	75
473398a2	76	sample.cpumode = PERF_RECORD_MISC_USER;
3c3cfd99	77	sample.pid = fake_samples[i].pid;
13ce34df	78	sample.tid = fake_samples[i].pid;
3c3cfd99 NK	79	sample.ip = fake_samples[i].ip;
3c3cfd99 NK	80
bb3eb566	81	if (machine__resolve(machine, &al, &sample) < 0)
3c3cfd99 NK	82	goto out;
3c3cfd99 NK	83
92d424ae	84	al.socket = fake_samples[i].socket;
063bd936	85	if (hist_entry_iter__add(&iter, &al,
4cb93446	86	sysctl_perf_event_max_stack, NULL) < 0) {
b91fc39f	87	addr_location__put(&al);
3c3cfd99	88	goto out;
b91fc39f	89	}
3c3cfd99 NK	90
	91	fake_samples[i].thread = al.thread;
	92	fake_samples[i].map = al.map;
	93	fake_samples[i].sym = al.sym;
3c3cfd99 NK	94	}
	95	}
	96
	97	return 0;
	98
	99	out:
	100	pr_debug("Not enough memory for adding a hist entry\n");
	101	return TEST_FAIL;
	102	}
	103
81f17c90	104	int test__hists_filter(struct test *test __maybe_unused, int subtest __maybe_unused)
3c3cfd99 NK	105	{
	106	int err = TEST_FAIL;
	107	struct machines machines;
	108	struct machine *machine;
32dcd021	109	struct evsel *evsel;
0f98b11c	110	struct evlist *evlist = evlist__new();
3c3cfd99 NK	111
	112	TEST_ASSERT_VAL("No memory", evlist);
	113
b39b8393	114	err = parse_events(evlist, "cpu-clock", NULL);
3c3cfd99 NK	115	if (err)
3c3cfd99 NK	116	goto out;
b39b8393	117	err = parse_events(evlist, "task-clock", NULL);
3c3cfd99 NK	118	if (err)
3c3cfd99 NK	119	goto out;
b0500c16	120	err = TEST_FAIL;
3c3cfd99 NK	121
3c3cfd99 NK	122	/* default sort order (comm,dso,sym) will be used */
40184c46	123	if (setup_sorting(NULL) < 0)
3c3cfd99 NK	124	goto out;
	125
	126	machines__init(&machines);
	127
	128	/* setup threads/dso/map/symbols also */
	129	machine = setup_fake_machine(&machines);
	130	if (!machine)
	131	goto out;
	132
	133	if (verbose > 1)
	134	machine__fprintf(machine, stderr);
	135
	136	/* process sample events */
	137	err = add_hist_entries(evlist, machine);
	138	if (err < 0)
	139	goto out;
	140
e5cadb93	141	evlist__for_each_entry(evlist, evsel) {
4ea062ed	142	struct hists *hists = evsel__hists(evsel);
3c3cfd99 NK	143
3c3cfd99 NK	144	hists__collapse_resort(hists, NULL);
452ce03b	145	perf_evsel__output_resort(evsel, NULL);
3c3cfd99 NK	146
	147	if (verbose > 2) {
	148	pr_info("Normal histogram\n");
4e754e1c	149	print_hists_out(hists);
3c3cfd99 NK	150	}
	151
	152	TEST_ASSERT_VAL("Invalid nr samples",
	153	hists->stats.nr_events[PERF_RECORD_SAMPLE] == 10);
	154	TEST_ASSERT_VAL("Invalid nr hist entries",
	155	hists->nr_entries == 9);
	156	TEST_ASSERT_VAL("Invalid total period",
	157	hists->stats.total_period == 1000);
	158	TEST_ASSERT_VAL("Unmatched nr samples",
	159	hists->stats.nr_events[PERF_RECORD_SAMPLE] ==
	160	hists->stats.nr_non_filtered_samples);
	161	TEST_ASSERT_VAL("Unmatched nr hist entries",
	162	hists->nr_entries == hists->nr_non_filtered_entries);
	163	TEST_ASSERT_VAL("Unmatched total period",
	164	hists->stats.total_period ==
	165	hists->stats.total_non_filtered_period);
	166
	167	/* now applying thread filter for 'bash' */
4ea062ed	168	hists->thread_filter = fake_samples[9].thread;
3c3cfd99 NK	169	hists__filter_by_thread(hists);
	170
	171	if (verbose > 2) {
	172	pr_info("Histogram for thread filter\n");
4e754e1c	173	print_hists_out(hists);
3c3cfd99 NK	174	}
	175
	176	/* normal stats should be invariant */
	177	TEST_ASSERT_VAL("Invalid nr samples",
	178	hists->stats.nr_events[PERF_RECORD_SAMPLE] == 10);
	179	TEST_ASSERT_VAL("Invalid nr hist entries",
	180	hists->nr_entries == 9);
	181	TEST_ASSERT_VAL("Invalid total period",
	182	hists->stats.total_period == 1000);
	183
	184	/* but filter stats are changed */
	185	TEST_ASSERT_VAL("Unmatched nr samples for thread filter",
	186	hists->stats.nr_non_filtered_samples == 4);
	187	TEST_ASSERT_VAL("Unmatched nr hist entries for thread filter",
	188	hists->nr_non_filtered_entries == 4);
	189	TEST_ASSERT_VAL("Unmatched total period for thread filter",
	190	hists->stats.total_non_filtered_period == 400);
	191
	192	/* remove thread filter first */
4ea062ed	193	hists->thread_filter = NULL;
3c3cfd99 NK	194	hists__filter_by_thread(hists);
	195
	196	/* now applying dso filter for 'kernel' */
4ea062ed	197	hists->dso_filter = fake_samples[0].map->dso;
3c3cfd99 NK	198	hists__filter_by_dso(hists);
	199
	200	if (verbose > 2) {
	201	pr_info("Histogram for dso filter\n");
4e754e1c	202	print_hists_out(hists);
3c3cfd99 NK	203	}
	204
	205	/* normal stats should be invariant */
	206	TEST_ASSERT_VAL("Invalid nr samples",
	207	hists->stats.nr_events[PERF_RECORD_SAMPLE] == 10);
	208	TEST_ASSERT_VAL("Invalid nr hist entries",
	209	hists->nr_entries == 9);
	210	TEST_ASSERT_VAL("Invalid total period",
	211	hists->stats.total_period == 1000);
	212
	213	/* but filter stats are changed */
	214	TEST_ASSERT_VAL("Unmatched nr samples for dso filter",
	215	hists->stats.nr_non_filtered_samples == 3);
	216	TEST_ASSERT_VAL("Unmatched nr hist entries for dso filter",
	217	hists->nr_non_filtered_entries == 3);
	218	TEST_ASSERT_VAL("Unmatched total period for dso filter",
	219	hists->stats.total_non_filtered_period == 300);
	220
	221	/* remove dso filter first */
4ea062ed	222	hists->dso_filter = NULL;
3c3cfd99 NK	223	hists__filter_by_dso(hists);
	224
	225	/*
	226	* now applying symbol filter for 'main'. Also note that
	227	* there's 3 samples that have 'main' symbol but the 4th
	228	* entry of fake_samples was collapsed already so it won't
	229	* be counted as a separate entry but the sample count and
	230	* total period will be remained.
	231	*/
4ea062ed	232	hists->symbol_filter_str = "main";
3c3cfd99 NK	233	hists__filter_by_symbol(hists);
	234
	235	if (verbose > 2) {
	236	pr_info("Histogram for symbol filter\n");
4e754e1c	237	print_hists_out(hists);
3c3cfd99 NK	238	}
	239
	240	/* normal stats should be invariant */
	241	TEST_ASSERT_VAL("Invalid nr samples",
	242	hists->stats.nr_events[PERF_RECORD_SAMPLE] == 10);
	243	TEST_ASSERT_VAL("Invalid nr hist entries",
	244	hists->nr_entries == 9);
	245	TEST_ASSERT_VAL("Invalid total period",
	246	hists->stats.total_period == 1000);
	247
	248	/* but filter stats are changed */
	249	TEST_ASSERT_VAL("Unmatched nr samples for symbol filter",
	250	hists->stats.nr_non_filtered_samples == 3);
	251	TEST_ASSERT_VAL("Unmatched nr hist entries for symbol filter",
	252	hists->nr_non_filtered_entries == 2);
	253	TEST_ASSERT_VAL("Unmatched total period for symbol filter",
	254	hists->stats.total_non_filtered_period == 300);
	255
92d424ae KL	256	/* remove symbol filter first */
	257	hists->symbol_filter_str = NULL;
	258	hists__filter_by_symbol(hists);
	259
	260	/* now applying socket filters */
	261	hists->socket_filter = 2;
	262	hists__filter_by_socket(hists);
	263
	264	if (verbose > 2) {
	265	pr_info("Histogram for socket filters\n");
	266	print_hists_out(hists);
	267	}
	268
	269	/* normal stats should be invariant */
	270	TEST_ASSERT_VAL("Invalid nr samples",
	271	hists->stats.nr_events[PERF_RECORD_SAMPLE] == 10);
	272	TEST_ASSERT_VAL("Invalid nr hist entries",
	273	hists->nr_entries == 9);
	274	TEST_ASSERT_VAL("Invalid total period",
	275	hists->stats.total_period == 1000);
	276
	277	/* but filter stats are changed */
	278	TEST_ASSERT_VAL("Unmatched nr samples for socket filter",
	279	hists->stats.nr_non_filtered_samples == 2);
	280	TEST_ASSERT_VAL("Unmatched nr hist entries for socket filter",
	281	hists->nr_non_filtered_entries == 2);
	282	TEST_ASSERT_VAL("Unmatched total period for socket filter",
	283	hists->stats.total_non_filtered_period == 200);
	284
	285	/* remove socket filter first */
	286	hists->socket_filter = -1;
	287	hists__filter_by_socket(hists);
	288
3c3cfd99	289	/* now applying all filters at once. */
4ea062ed ACM	290	hists->thread_filter = fake_samples[1].thread;
4ea062ed ACM	291	hists->dso_filter = fake_samples[1].map->dso;
3c3cfd99 NK	292	hists__filter_by_thread(hists);
	293	hists__filter_by_dso(hists);
	294
	295	if (verbose > 2) {
	296	pr_info("Histogram for all filters\n");
4e754e1c	297	print_hists_out(hists);
3c3cfd99 NK	298	}
	299
	300	/* normal stats should be invariant */
	301	TEST_ASSERT_VAL("Invalid nr samples",
	302	hists->stats.nr_events[PERF_RECORD_SAMPLE] == 10);
	303	TEST_ASSERT_VAL("Invalid nr hist entries",
	304	hists->nr_entries == 9);
	305	TEST_ASSERT_VAL("Invalid total period",
	306	hists->stats.total_period == 1000);
	307
	308	/* but filter stats are changed */
	309	TEST_ASSERT_VAL("Unmatched nr samples for all filter",
	310	hists->stats.nr_non_filtered_samples == 2);
	311	TEST_ASSERT_VAL("Unmatched nr hist entries for all filter",
	312	hists->nr_non_filtered_entries == 1);
	313	TEST_ASSERT_VAL("Unmatched total period for all filter",
	314	hists->stats.total_non_filtered_period == 200);
	315	}
	316
	317
	318	err = TEST_OK;
	319
	320	out:
	321	/* tear down everything */
c12995a5	322	evlist__delete(evlist);
f21d1815	323	reset_output_field();
3c3cfd99 NK	324	machines__exit(&machines);
	325
	326	return err;
	327	}