626 lines
18 KiB
C
626 lines
18 KiB
C
// SPDX-License-Identifier: GPL-2.0
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#include "util/debug.h"
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#include "util/dso.h"
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#include "util/event.h"
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#include "util/map.h"
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#include "util/symbol.h"
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#include "util/sort.h"
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#include "util/evsel.h"
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#include "util/evlist.h"
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#include "util/machine.h"
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#include "util/thread.h"
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#include "util/parse-events.h"
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#include "tests/tests.h"
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#include "tests/hists_common.h"
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#include <linux/kernel.h>
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struct sample {
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u32 cpu;
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u32 pid;
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u64 ip;
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struct thread *thread;
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struct map *map;
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struct symbol *sym;
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};
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/* For the numbers, see hists_common.c */
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static struct sample fake_samples[] = {
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/* perf [kernel] schedule() */
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{ .cpu = 0, .pid = FAKE_PID_PERF1, .ip = FAKE_IP_KERNEL_SCHEDULE, },
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/* perf [perf] main() */
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{ .cpu = 1, .pid = FAKE_PID_PERF1, .ip = FAKE_IP_PERF_MAIN, },
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/* perf [perf] cmd_record() */
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{ .cpu = 1, .pid = FAKE_PID_PERF1, .ip = FAKE_IP_PERF_CMD_RECORD, },
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/* perf [libc] malloc() */
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{ .cpu = 1, .pid = FAKE_PID_PERF1, .ip = FAKE_IP_LIBC_MALLOC, },
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/* perf [libc] free() */
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{ .cpu = 2, .pid = FAKE_PID_PERF1, .ip = FAKE_IP_LIBC_FREE, },
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/* perf [perf] main() */
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{ .cpu = 2, .pid = FAKE_PID_PERF2, .ip = FAKE_IP_PERF_MAIN, },
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/* perf [kernel] page_fault() */
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{ .cpu = 2, .pid = FAKE_PID_PERF2, .ip = FAKE_IP_KERNEL_PAGE_FAULT, },
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/* bash [bash] main() */
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{ .cpu = 3, .pid = FAKE_PID_BASH, .ip = FAKE_IP_BASH_MAIN, },
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/* bash [bash] xmalloc() */
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{ .cpu = 0, .pid = FAKE_PID_BASH, .ip = FAKE_IP_BASH_XMALLOC, },
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/* bash [kernel] page_fault() */
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{ .cpu = 1, .pid = FAKE_PID_BASH, .ip = FAKE_IP_KERNEL_PAGE_FAULT, },
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};
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static int add_hist_entries(struct hists *hists, struct machine *machine)
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{
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struct addr_location al;
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struct evsel *evsel = hists_to_evsel(hists);
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struct perf_sample sample = { .period = 100, };
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size_t i;
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for (i = 0; i < ARRAY_SIZE(fake_samples); i++) {
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struct hist_entry_iter iter = {
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.evsel = evsel,
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.sample = &sample,
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.ops = &hist_iter_normal,
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.hide_unresolved = false,
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};
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sample.cpumode = PERF_RECORD_MISC_USER;
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sample.cpu = fake_samples[i].cpu;
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sample.pid = fake_samples[i].pid;
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sample.tid = fake_samples[i].pid;
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sample.ip = fake_samples[i].ip;
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if (machine__resolve(machine, &al, &sample) < 0)
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goto out;
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if (hist_entry_iter__add(&iter, &al, sysctl_perf_event_max_stack,
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NULL) < 0) {
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addr_location__put(&al);
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goto out;
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}
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fake_samples[i].thread = al.thread;
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fake_samples[i].map = al.map;
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fake_samples[i].sym = al.sym;
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}
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return TEST_OK;
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out:
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pr_debug("Not enough memory for adding a hist entry\n");
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return TEST_FAIL;
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}
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static void del_hist_entries(struct hists *hists)
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{
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struct hist_entry *he;
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struct rb_root_cached *root_in;
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struct rb_root_cached *root_out;
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struct rb_node *node;
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if (hists__has(hists, need_collapse))
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root_in = &hists->entries_collapsed;
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else
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root_in = hists->entries_in;
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root_out = &hists->entries;
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while (!RB_EMPTY_ROOT(&root_out->rb_root)) {
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node = rb_first_cached(root_out);
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he = rb_entry(node, struct hist_entry, rb_node);
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rb_erase_cached(node, root_out);
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rb_erase_cached(&he->rb_node_in, root_in);
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hist_entry__delete(he);
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}
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}
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typedef int (*test_fn_t)(struct evsel *, struct machine *);
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#define COMM(he) (thread__comm_str(he->thread))
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#define DSO(he) (he->ms.map->dso->short_name)
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#define SYM(he) (he->ms.sym->name)
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#define CPU(he) (he->cpu)
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#define PID(he) (he->thread->tid)
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/* default sort keys (no field) */
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static int test1(struct evsel *evsel, struct machine *machine)
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{
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int err;
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struct hists *hists = evsel__hists(evsel);
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struct hist_entry *he;
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struct rb_root_cached *root;
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struct rb_node *node;
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field_order = NULL;
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sort_order = NULL; /* equivalent to sort_order = "comm,dso,sym" */
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setup_sorting(NULL);
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/*
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* expected output:
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*
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* Overhead Command Shared Object Symbol
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* ======== ======= ============= ==============
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* 20.00% perf perf [.] main
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* 10.00% bash [kernel] [k] page_fault
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* 10.00% bash bash [.] main
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* 10.00% bash bash [.] xmalloc
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* 10.00% perf [kernel] [k] page_fault
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* 10.00% perf [kernel] [k] schedule
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* 10.00% perf libc [.] free
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* 10.00% perf libc [.] malloc
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* 10.00% perf perf [.] cmd_record
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*/
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err = add_hist_entries(hists, machine);
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if (err < 0)
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goto out;
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hists__collapse_resort(hists, NULL);
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evsel__output_resort(evsel, NULL);
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if (verbose > 2) {
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pr_info("[fields = %s, sort = %s]\n", field_order, sort_order);
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print_hists_out(hists);
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}
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root = &hists->entries;
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node = rb_first_cached(root);
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he = rb_entry(node, struct hist_entry, rb_node);
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TEST_ASSERT_VAL("Invalid hist entry",
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!strcmp(COMM(he), "perf") && !strcmp(DSO(he), "perf") &&
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!strcmp(SYM(he), "main") && he->stat.period == 200);
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node = rb_next(node);
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he = rb_entry(node, struct hist_entry, rb_node);
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TEST_ASSERT_VAL("Invalid hist entry",
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!strcmp(COMM(he), "bash") && !strcmp(DSO(he), "[kernel]") &&
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!strcmp(SYM(he), "page_fault") && he->stat.period == 100);
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node = rb_next(node);
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he = rb_entry(node, struct hist_entry, rb_node);
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TEST_ASSERT_VAL("Invalid hist entry",
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!strcmp(COMM(he), "bash") && !strcmp(DSO(he), "bash") &&
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!strcmp(SYM(he), "main") && he->stat.period == 100);
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node = rb_next(node);
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he = rb_entry(node, struct hist_entry, rb_node);
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TEST_ASSERT_VAL("Invalid hist entry",
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!strcmp(COMM(he), "bash") && !strcmp(DSO(he), "bash") &&
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!strcmp(SYM(he), "xmalloc") && he->stat.period == 100);
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node = rb_next(node);
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he = rb_entry(node, struct hist_entry, rb_node);
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TEST_ASSERT_VAL("Invalid hist entry",
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!strcmp(COMM(he), "perf") && !strcmp(DSO(he), "[kernel]") &&
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!strcmp(SYM(he), "page_fault") && he->stat.period == 100);
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node = rb_next(node);
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he = rb_entry(node, struct hist_entry, rb_node);
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TEST_ASSERT_VAL("Invalid hist entry",
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!strcmp(COMM(he), "perf") && !strcmp(DSO(he), "[kernel]") &&
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!strcmp(SYM(he), "schedule") && he->stat.period == 100);
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node = rb_next(node);
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he = rb_entry(node, struct hist_entry, rb_node);
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TEST_ASSERT_VAL("Invalid hist entry",
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!strcmp(COMM(he), "perf") && !strcmp(DSO(he), "libc") &&
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!strcmp(SYM(he), "free") && he->stat.period == 100);
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node = rb_next(node);
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he = rb_entry(node, struct hist_entry, rb_node);
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TEST_ASSERT_VAL("Invalid hist entry",
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!strcmp(COMM(he), "perf") && !strcmp(DSO(he), "libc") &&
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!strcmp(SYM(he), "malloc") && he->stat.period == 100);
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node = rb_next(node);
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he = rb_entry(node, struct hist_entry, rb_node);
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TEST_ASSERT_VAL("Invalid hist entry",
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!strcmp(COMM(he), "perf") && !strcmp(DSO(he), "perf") &&
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!strcmp(SYM(he), "cmd_record") && he->stat.period == 100);
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out:
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del_hist_entries(hists);
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reset_output_field();
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return err;
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}
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/* mixed fields and sort keys */
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static int test2(struct evsel *evsel, struct machine *machine)
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{
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int err;
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struct hists *hists = evsel__hists(evsel);
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struct hist_entry *he;
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struct rb_root_cached *root;
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struct rb_node *node;
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field_order = "overhead,cpu";
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sort_order = "pid";
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setup_sorting(NULL);
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/*
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* expected output:
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*
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* Overhead CPU Command: Pid
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* ======== === =============
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* 30.00% 1 perf : 100
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* 10.00% 0 perf : 100
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* 10.00% 2 perf : 100
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* 20.00% 2 perf : 200
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* 10.00% 0 bash : 300
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* 10.00% 1 bash : 300
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* 10.00% 3 bash : 300
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*/
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err = add_hist_entries(hists, machine);
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if (err < 0)
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goto out;
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hists__collapse_resort(hists, NULL);
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evsel__output_resort(evsel, NULL);
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if (verbose > 2) {
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pr_info("[fields = %s, sort = %s]\n", field_order, sort_order);
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print_hists_out(hists);
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}
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root = &hists->entries;
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node = rb_first_cached(root);
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he = rb_entry(node, struct hist_entry, rb_node);
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TEST_ASSERT_VAL("Invalid hist entry",
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CPU(he) == 1 && PID(he) == 100 && he->stat.period == 300);
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node = rb_next(node);
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he = rb_entry(node, struct hist_entry, rb_node);
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TEST_ASSERT_VAL("Invalid hist entry",
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CPU(he) == 0 && PID(he) == 100 && he->stat.period == 100);
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out:
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del_hist_entries(hists);
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reset_output_field();
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return err;
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}
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/* fields only (no sort key) */
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static int test3(struct evsel *evsel, struct machine *machine)
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{
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int err;
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struct hists *hists = evsel__hists(evsel);
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struct hist_entry *he;
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struct rb_root_cached *root;
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struct rb_node *node;
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field_order = "comm,overhead,dso";
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sort_order = NULL;
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setup_sorting(NULL);
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/*
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* expected output:
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*
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* Command Overhead Shared Object
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* ======= ======== =============
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* bash 20.00% bash
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* bash 10.00% [kernel]
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* perf 30.00% perf
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* perf 20.00% [kernel]
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* perf 20.00% libc
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*/
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err = add_hist_entries(hists, machine);
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if (err < 0)
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goto out;
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hists__collapse_resort(hists, NULL);
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evsel__output_resort(evsel, NULL);
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if (verbose > 2) {
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pr_info("[fields = %s, sort = %s]\n", field_order, sort_order);
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print_hists_out(hists);
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}
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root = &hists->entries;
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node = rb_first_cached(root);
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he = rb_entry(node, struct hist_entry, rb_node);
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TEST_ASSERT_VAL("Invalid hist entry",
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!strcmp(COMM(he), "bash") && !strcmp(DSO(he), "bash") &&
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he->stat.period == 200);
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node = rb_next(node);
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he = rb_entry(node, struct hist_entry, rb_node);
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TEST_ASSERT_VAL("Invalid hist entry",
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!strcmp(COMM(he), "bash") && !strcmp(DSO(he), "[kernel]") &&
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he->stat.period == 100);
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node = rb_next(node);
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he = rb_entry(node, struct hist_entry, rb_node);
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TEST_ASSERT_VAL("Invalid hist entry",
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!strcmp(COMM(he), "perf") && !strcmp(DSO(he), "perf") &&
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he->stat.period == 300);
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node = rb_next(node);
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he = rb_entry(node, struct hist_entry, rb_node);
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TEST_ASSERT_VAL("Invalid hist entry",
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!strcmp(COMM(he), "perf") && !strcmp(DSO(he), "[kernel]") &&
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he->stat.period == 200);
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node = rb_next(node);
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he = rb_entry(node, struct hist_entry, rb_node);
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TEST_ASSERT_VAL("Invalid hist entry",
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!strcmp(COMM(he), "perf") && !strcmp(DSO(he), "libc") &&
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he->stat.period == 200);
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out:
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del_hist_entries(hists);
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reset_output_field();
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return err;
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}
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/* handle duplicate 'dso' field */
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static int test4(struct evsel *evsel, struct machine *machine)
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{
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int err;
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struct hists *hists = evsel__hists(evsel);
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struct hist_entry *he;
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struct rb_root_cached *root;
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struct rb_node *node;
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field_order = "dso,sym,comm,overhead,dso";
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sort_order = "sym";
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setup_sorting(NULL);
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/*
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* expected output:
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*
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* Shared Object Symbol Command Overhead
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* ============= ============== ======= ========
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* perf [.] cmd_record perf 10.00%
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* libc [.] free perf 10.00%
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* bash [.] main bash 10.00%
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* perf [.] main perf 20.00%
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* libc [.] malloc perf 10.00%
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* [kernel] [k] page_fault bash 10.00%
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* [kernel] [k] page_fault perf 10.00%
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* [kernel] [k] schedule perf 10.00%
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* bash [.] xmalloc bash 10.00%
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*/
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err = add_hist_entries(hists, machine);
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if (err < 0)
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goto out;
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hists__collapse_resort(hists, NULL);
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evsel__output_resort(evsel, NULL);
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if (verbose > 2) {
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pr_info("[fields = %s, sort = %s]\n", field_order, sort_order);
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print_hists_out(hists);
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}
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root = &hists->entries;
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node = rb_first_cached(root);
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he = rb_entry(node, struct hist_entry, rb_node);
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TEST_ASSERT_VAL("Invalid hist entry",
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!strcmp(DSO(he), "perf") && !strcmp(SYM(he), "cmd_record") &&
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!strcmp(COMM(he), "perf") && he->stat.period == 100);
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node = rb_next(node);
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he = rb_entry(node, struct hist_entry, rb_node);
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TEST_ASSERT_VAL("Invalid hist entry",
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!strcmp(DSO(he), "libc") && !strcmp(SYM(he), "free") &&
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!strcmp(COMM(he), "perf") && he->stat.period == 100);
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node = rb_next(node);
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he = rb_entry(node, struct hist_entry, rb_node);
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TEST_ASSERT_VAL("Invalid hist entry",
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!strcmp(DSO(he), "bash") && !strcmp(SYM(he), "main") &&
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!strcmp(COMM(he), "bash") && he->stat.period == 100);
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node = rb_next(node);
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he = rb_entry(node, struct hist_entry, rb_node);
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TEST_ASSERT_VAL("Invalid hist entry",
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!strcmp(DSO(he), "perf") && !strcmp(SYM(he), "main") &&
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!strcmp(COMM(he), "perf") && he->stat.period == 200);
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node = rb_next(node);
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he = rb_entry(node, struct hist_entry, rb_node);
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TEST_ASSERT_VAL("Invalid hist entry",
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!strcmp(DSO(he), "libc") && !strcmp(SYM(he), "malloc") &&
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!strcmp(COMM(he), "perf") && he->stat.period == 100);
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node = rb_next(node);
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he = rb_entry(node, struct hist_entry, rb_node);
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TEST_ASSERT_VAL("Invalid hist entry",
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!strcmp(DSO(he), "[kernel]") && !strcmp(SYM(he), "page_fault") &&
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!strcmp(COMM(he), "bash") && he->stat.period == 100);
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node = rb_next(node);
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he = rb_entry(node, struct hist_entry, rb_node);
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TEST_ASSERT_VAL("Invalid hist entry",
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!strcmp(DSO(he), "[kernel]") && !strcmp(SYM(he), "page_fault") &&
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!strcmp(COMM(he), "perf") && he->stat.period == 100);
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node = rb_next(node);
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he = rb_entry(node, struct hist_entry, rb_node);
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TEST_ASSERT_VAL("Invalid hist entry",
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!strcmp(DSO(he), "[kernel]") && !strcmp(SYM(he), "schedule") &&
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!strcmp(COMM(he), "perf") && he->stat.period == 100);
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node = rb_next(node);
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he = rb_entry(node, struct hist_entry, rb_node);
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TEST_ASSERT_VAL("Invalid hist entry",
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!strcmp(DSO(he), "bash") && !strcmp(SYM(he), "xmalloc") &&
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!strcmp(COMM(he), "bash") && he->stat.period == 100);
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out:
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del_hist_entries(hists);
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reset_output_field();
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return err;
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}
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/* full sort keys w/o overhead field */
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static int test5(struct evsel *evsel, struct machine *machine)
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{
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int err;
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struct hists *hists = evsel__hists(evsel);
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struct hist_entry *he;
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struct rb_root_cached *root;
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struct rb_node *node;
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field_order = "cpu,pid,comm,dso,sym";
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sort_order = "dso,pid";
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setup_sorting(NULL);
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/*
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* expected output:
|
|
*
|
|
* CPU Command: Pid Command Shared Object Symbol
|
|
* === ============= ======= ============= ==============
|
|
* 0 perf: 100 perf [kernel] [k] schedule
|
|
* 2 perf: 200 perf [kernel] [k] page_fault
|
|
* 1 bash: 300 bash [kernel] [k] page_fault
|
|
* 0 bash: 300 bash bash [.] xmalloc
|
|
* 3 bash: 300 bash bash [.] main
|
|
* 1 perf: 100 perf libc [.] malloc
|
|
* 2 perf: 100 perf libc [.] free
|
|
* 1 perf: 100 perf perf [.] cmd_record
|
|
* 1 perf: 100 perf perf [.] main
|
|
* 2 perf: 200 perf perf [.] main
|
|
*/
|
|
err = add_hist_entries(hists, machine);
|
|
if (err < 0)
|
|
goto out;
|
|
|
|
hists__collapse_resort(hists, NULL);
|
|
evsel__output_resort(evsel, NULL);
|
|
|
|
if (verbose > 2) {
|
|
pr_info("[fields = %s, sort = %s]\n", field_order, sort_order);
|
|
print_hists_out(hists);
|
|
}
|
|
|
|
root = &hists->entries;
|
|
node = rb_first_cached(root);
|
|
he = rb_entry(node, struct hist_entry, rb_node);
|
|
|
|
TEST_ASSERT_VAL("Invalid hist entry",
|
|
CPU(he) == 0 && PID(he) == 100 &&
|
|
!strcmp(COMM(he), "perf") && !strcmp(DSO(he), "[kernel]") &&
|
|
!strcmp(SYM(he), "schedule") && he->stat.period == 100);
|
|
|
|
node = rb_next(node);
|
|
he = rb_entry(node, struct hist_entry, rb_node);
|
|
TEST_ASSERT_VAL("Invalid hist entry",
|
|
CPU(he) == 2 && PID(he) == 200 &&
|
|
!strcmp(COMM(he), "perf") && !strcmp(DSO(he), "[kernel]") &&
|
|
!strcmp(SYM(he), "page_fault") && he->stat.period == 100);
|
|
|
|
node = rb_next(node);
|
|
he = rb_entry(node, struct hist_entry, rb_node);
|
|
TEST_ASSERT_VAL("Invalid hist entry",
|
|
CPU(he) == 1 && PID(he) == 300 &&
|
|
!strcmp(COMM(he), "bash") && !strcmp(DSO(he), "[kernel]") &&
|
|
!strcmp(SYM(he), "page_fault") && he->stat.period == 100);
|
|
|
|
node = rb_next(node);
|
|
he = rb_entry(node, struct hist_entry, rb_node);
|
|
TEST_ASSERT_VAL("Invalid hist entry",
|
|
CPU(he) == 0 && PID(he) == 300 &&
|
|
!strcmp(COMM(he), "bash") && !strcmp(DSO(he), "bash") &&
|
|
!strcmp(SYM(he), "xmalloc") && he->stat.period == 100);
|
|
|
|
node = rb_next(node);
|
|
he = rb_entry(node, struct hist_entry, rb_node);
|
|
TEST_ASSERT_VAL("Invalid hist entry",
|
|
CPU(he) == 3 && PID(he) == 300 &&
|
|
!strcmp(COMM(he), "bash") && !strcmp(DSO(he), "bash") &&
|
|
!strcmp(SYM(he), "main") && he->stat.period == 100);
|
|
|
|
node = rb_next(node);
|
|
he = rb_entry(node, struct hist_entry, rb_node);
|
|
TEST_ASSERT_VAL("Invalid hist entry",
|
|
CPU(he) == 1 && PID(he) == 100 &&
|
|
!strcmp(COMM(he), "perf") && !strcmp(DSO(he), "libc") &&
|
|
!strcmp(SYM(he), "malloc") && he->stat.period == 100);
|
|
|
|
node = rb_next(node);
|
|
he = rb_entry(node, struct hist_entry, rb_node);
|
|
TEST_ASSERT_VAL("Invalid hist entry",
|
|
CPU(he) == 2 && PID(he) == 100 &&
|
|
!strcmp(COMM(he), "perf") && !strcmp(DSO(he), "libc") &&
|
|
!strcmp(SYM(he), "free") && he->stat.period == 100);
|
|
|
|
node = rb_next(node);
|
|
he = rb_entry(node, struct hist_entry, rb_node);
|
|
TEST_ASSERT_VAL("Invalid hist entry",
|
|
CPU(he) == 1 && PID(he) == 100 &&
|
|
!strcmp(COMM(he), "perf") && !strcmp(DSO(he), "perf") &&
|
|
!strcmp(SYM(he), "cmd_record") && he->stat.period == 100);
|
|
|
|
node = rb_next(node);
|
|
he = rb_entry(node, struct hist_entry, rb_node);
|
|
TEST_ASSERT_VAL("Invalid hist entry",
|
|
CPU(he) == 1 && PID(he) == 100 &&
|
|
!strcmp(COMM(he), "perf") && !strcmp(DSO(he), "perf") &&
|
|
!strcmp(SYM(he), "main") && he->stat.period == 100);
|
|
|
|
node = rb_next(node);
|
|
he = rb_entry(node, struct hist_entry, rb_node);
|
|
TEST_ASSERT_VAL("Invalid hist entry",
|
|
CPU(he) == 2 && PID(he) == 200 &&
|
|
!strcmp(COMM(he), "perf") && !strcmp(DSO(he), "perf") &&
|
|
!strcmp(SYM(he), "main") && he->stat.period == 100);
|
|
|
|
out:
|
|
del_hist_entries(hists);
|
|
reset_output_field();
|
|
return err;
|
|
}
|
|
|
|
int test__hists_output(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();
|
|
size_t i;
|
|
test_fn_t testcases[] = {
|
|
test1,
|
|
test2,
|
|
test3,
|
|
test4,
|
|
test5,
|
|
};
|
|
|
|
TEST_ASSERT_VAL("No memory", evlist);
|
|
|
|
err = parse_events(evlist, "cpu-clock", NULL);
|
|
if (err)
|
|
goto out;
|
|
err = TEST_FAIL;
|
|
|
|
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);
|
|
|
|
evsel = evlist__first(evlist);
|
|
|
|
for (i = 0; i < ARRAY_SIZE(testcases); i++) {
|
|
err = testcases[i](evsel, machine);
|
|
if (err < 0)
|
|
break;
|
|
}
|
|
|
|
out:
|
|
/* tear down everything */
|
|
evlist__delete(evlist);
|
|
machines__exit(&machines);
|
|
|
|
return err;
|
|
}
|