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linux/tools/perf/tests/hists_output.c
Namhyung Kim a1891aa480 perf tests: Define and use symbolic names for fake symbols 
In various histogram test cases, fake symbols are used as raw numbers.
Define macros for each pid, map, symbols so that it can increase
readability somewhat.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Arun Sharma <asharma@fb.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Link: http://lkml.kernel.org/r/1401335910-16832-27-git-send-email-namhyung@kernel.org
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
2014-06-01 14:35:11 +02:00

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