2014-05-23 17:04:42 +08:00
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#include "perf.h"
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#include "util/debug.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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struct sample {
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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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{ .pid = FAKE_PID_PERF1, .ip = FAKE_IP_KERNEL_SCHEDULE, },
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/* perf [perf] main() */
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{ .pid = FAKE_PID_PERF1, .ip = FAKE_IP_PERF_MAIN, },
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/* perf [perf] cmd_record() */
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{ .pid = FAKE_PID_PERF1, .ip = FAKE_IP_PERF_CMD_RECORD, },
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/* perf [libc] malloc() */
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{ .pid = FAKE_PID_PERF1, .ip = FAKE_IP_LIBC_MALLOC, },
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/* perf [libc] free() */
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{ .pid = FAKE_PID_PERF1, .ip = FAKE_IP_LIBC_FREE, },
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/* perf [perf] main() */
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{ .pid = FAKE_PID_PERF2, .ip = FAKE_IP_PERF_MAIN, },
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/* perf [kernel] page_fault() */
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{ .pid = FAKE_PID_PERF2, .ip = FAKE_IP_KERNEL_PAGE_FAULT, },
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/* bash [bash] main() */
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{ .pid = FAKE_PID_BASH, .ip = FAKE_IP_BASH_MAIN, },
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/* bash [bash] xmalloc() */
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{ .pid = FAKE_PID_BASH, .ip = FAKE_IP_BASH_XMALLOC, },
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/* bash [kernel] page_fault() */
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{ .pid = FAKE_PID_BASH, .ip = FAKE_IP_KERNEL_PAGE_FAULT, },
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};
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/*
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* Will be casted to struct ip_callchain which has all 64 bit entries
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* of nr and ips[].
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*/
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static u64 fake_callchains[][10] = {
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/* schedule => run_command => main */
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{ 3, FAKE_IP_KERNEL_SCHEDULE, FAKE_IP_PERF_RUN_COMMAND, FAKE_IP_PERF_MAIN, },
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/* main */
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{ 1, FAKE_IP_PERF_MAIN, },
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/* cmd_record => run_command => main */
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{ 3, FAKE_IP_PERF_CMD_RECORD, FAKE_IP_PERF_RUN_COMMAND, FAKE_IP_PERF_MAIN, },
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/* malloc => cmd_record => run_command => main */
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{ 4, FAKE_IP_LIBC_MALLOC, FAKE_IP_PERF_CMD_RECORD, FAKE_IP_PERF_RUN_COMMAND,
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FAKE_IP_PERF_MAIN, },
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/* free => cmd_record => run_command => main */
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{ 4, FAKE_IP_LIBC_FREE, FAKE_IP_PERF_CMD_RECORD, FAKE_IP_PERF_RUN_COMMAND,
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FAKE_IP_PERF_MAIN, },
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/* main */
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{ 1, FAKE_IP_PERF_MAIN, },
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/* page_fault => sys_perf_event_open => run_command => main */
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{ 4, FAKE_IP_KERNEL_PAGE_FAULT, FAKE_IP_KERNEL_SYS_PERF_EVENT_OPEN,
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FAKE_IP_PERF_RUN_COMMAND, FAKE_IP_PERF_MAIN, },
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/* main */
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{ 1, FAKE_IP_BASH_MAIN, },
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/* xmalloc => malloc => xmalloc => malloc => xmalloc => main */
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{ 6, FAKE_IP_BASH_XMALLOC, FAKE_IP_LIBC_MALLOC, FAKE_IP_BASH_XMALLOC,
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FAKE_IP_LIBC_MALLOC, FAKE_IP_BASH_XMALLOC, FAKE_IP_BASH_MAIN, },
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/* page_fault => malloc => main */
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{ 3, FAKE_IP_KERNEL_PAGE_FAULT, FAKE_IP_LIBC_MALLOC, FAKE_IP_BASH_MAIN, },
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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 perf_evsel *evsel = hists_to_evsel(hists);
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struct perf_sample sample = { .period = 1000, };
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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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2015-05-19 16:04:10 +08:00
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.evsel = evsel,
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.sample = &sample,
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2014-05-23 17:04:42 +08:00
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.hide_unresolved = false,
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};
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if (symbol_conf.cumulate_callchain)
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iter.ops = &hist_iter_cumulative;
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else
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iter.ops = &hist_iter_normal;
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2016-03-23 05:23:43 +08:00
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sample.cpumode = PERF_RECORD_MISC_USER;
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2014-05-23 17:04:42 +08:00
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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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sample.callchain = (struct ip_callchain *)fake_callchains[i];
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2016-03-23 05:39:09 +08:00
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if (machine__resolve(machine, &al, &sample) < 0)
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2014-05-23 17:04:42 +08:00
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goto out;
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2016-04-27 21:16:24 +08:00
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if (hist_entry_iter__add(&iter, &al, sysctl_perf_event_max_stack,
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2015-05-19 16:04:10 +08:00
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NULL) < 0) {
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perf machine: Protect the machine->threads with a rwlock
In addition to using refcounts for the struct thread lifetime
management, we need to protect access to machine->threads from
concurrent access.
That happens in 'perf top', where a thread processes events, inserting
and deleting entries from that rb_tree while another thread decays
hist_entries, that end up dropping references and ultimately deleting
threads from the rb_tree and releasing its resources when no further
hist_entry (or other data structures, like in 'perf sched') references
it.
So the rule is the same for refcounts + protected trees in the kernel,
get the tree lock, find object, bump the refcount, drop the tree lock,
return, use object, drop the refcount if no more use of it is needed,
keep it if storing it in some other data structure, drop when releasing
that data structure.
I.e. pair "t = machine__find(new)_thread()" with a "thread__put(t)", and
"perf_event__preprocess_sample(&al)" with "addr_location__put(&al)".
The addr_location__put() one is because as we return references to
several data structures, we may end up adding more reference counting
for the other data structures and then we'll drop it at
addr_location__put() time.
Acked-by: David Ahern <dsahern@gmail.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Borislav Petkov <bp@suse.de>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-bs9rt4n0jw3hi9f3zxyy3xln@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-04-07 07:43:22 +08:00
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addr_location__put(&al);
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2014-05-23 17:04:42 +08:00
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goto out;
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perf machine: Protect the machine->threads with a rwlock
In addition to using refcounts for the struct thread lifetime
management, we need to protect access to machine->threads from
concurrent access.
That happens in 'perf top', where a thread processes events, inserting
and deleting entries from that rb_tree while another thread decays
hist_entries, that end up dropping references and ultimately deleting
threads from the rb_tree and releasing its resources when no further
hist_entry (or other data structures, like in 'perf sched') references
it.
So the rule is the same for refcounts + protected trees in the kernel,
get the tree lock, find object, bump the refcount, drop the tree lock,
return, use object, drop the refcount if no more use of it is needed,
keep it if storing it in some other data structure, drop when releasing
that data structure.
I.e. pair "t = machine__find(new)_thread()" with a "thread__put(t)", and
"perf_event__preprocess_sample(&al)" with "addr_location__put(&al)".
The addr_location__put() one is because as we return references to
several data structures, we may end up adding more reference counting
for the other data structures and then we'll drop it at
addr_location__put() time.
Acked-by: David Ahern <dsahern@gmail.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Borislav Petkov <bp@suse.de>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-bs9rt4n0jw3hi9f3zxyy3xln@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-04-07 07:43:22 +08:00
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}
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2014-05-23 17:04:42 +08:00
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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 *root_in;
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struct rb_root *root_out;
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struct rb_node *node;
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2016-05-03 19:54:42 +08:00
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if (hists__has(hists, need_collapse))
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2014-05-23 17:04:42 +08:00
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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)) {
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node = rb_first(root_out);
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he = rb_entry(node, struct hist_entry, rb_node);
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rb_erase(node, root_out);
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rb_erase(&he->rb_node_in, root_in);
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2014-12-19 23:31:40 +08:00
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hist_entry__delete(he);
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2014-05-23 17:04:42 +08:00
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}
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}
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typedef int (*test_fn_t)(struct perf_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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#define DEPTH(he) (he->callchain->max_depth)
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#define CDSO(cl) (cl->ms.map->dso->short_name)
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#define CSYM(cl) (cl->ms.sym->name)
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struct result {
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u64 children;
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u64 self;
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const char *comm;
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const char *dso;
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const char *sym;
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};
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struct callchain_result {
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u64 nr;
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struct {
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const char *dso;
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const char *sym;
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} node[10];
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};
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static int do_test(struct hists *hists, struct result *expected, size_t nr_expected,
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struct callchain_result *expected_callchain, size_t nr_callchain)
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{
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char buf[32];
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size_t i, c;
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struct hist_entry *he;
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struct rb_root *root;
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struct rb_node *node;
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struct callchain_node *cnode;
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struct callchain_list *clist;
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/*
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* adding and deleting hist entries must be done outside of this
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* function since TEST_ASSERT_VAL() returns in case of failure.
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*/
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hists__collapse_resort(hists, NULL);
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2016-01-18 17:24:00 +08:00
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perf_evsel__output_resort(hists_to_evsel(hists), NULL);
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2014-05-23 17:04:42 +08:00
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if (verbose > 2) {
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pr_info("use callchain: %d, cumulate callchain: %d\n",
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symbol_conf.use_callchain,
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symbol_conf.cumulate_callchain);
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print_hists_out(hists);
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}
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root = &hists->entries;
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for (node = rb_first(root), i = 0;
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node && (he = rb_entry(node, struct hist_entry, rb_node));
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node = rb_next(node), i++) {
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scnprintf(buf, sizeof(buf), "Invalid hist entry #%zd", i);
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TEST_ASSERT_VAL("Incorrect number of hist entry",
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i < nr_expected);
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TEST_ASSERT_VAL(buf, he->stat.period == expected[i].self &&
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!strcmp(COMM(he), expected[i].comm) &&
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!strcmp(DSO(he), expected[i].dso) &&
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!strcmp(SYM(he), expected[i].sym));
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if (symbol_conf.cumulate_callchain)
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TEST_ASSERT_VAL(buf, he->stat_acc->period == expected[i].children);
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if (!symbol_conf.use_callchain)
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continue;
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/* check callchain entries */
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root = &he->callchain->node.rb_root;
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2016-07-04 20:16:21 +08:00
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TEST_ASSERT_VAL("callchains expected", !RB_EMPTY_ROOT(root));
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2014-05-23 17:04:42 +08:00
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cnode = rb_entry(rb_first(root), struct callchain_node, rb_node);
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c = 0;
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list_for_each_entry(clist, &cnode->val, list) {
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scnprintf(buf, sizeof(buf), "Invalid callchain entry #%zd/%zd", i, c);
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TEST_ASSERT_VAL("Incorrect number of callchain entry",
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c < expected_callchain[i].nr);
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TEST_ASSERT_VAL(buf,
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!strcmp(CDSO(clist), expected_callchain[i].node[c].dso) &&
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!strcmp(CSYM(clist), expected_callchain[i].node[c].sym));
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c++;
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}
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/* TODO: handle multiple child nodes properly */
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TEST_ASSERT_VAL("Incorrect number of callchain entry",
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c <= expected_callchain[i].nr);
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}
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TEST_ASSERT_VAL("Incorrect number of hist entry",
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i == nr_expected);
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TEST_ASSERT_VAL("Incorrect number of callchain entry",
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!symbol_conf.use_callchain || nr_expected == nr_callchain);
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return 0;
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}
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/* NO callchain + NO children */
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static int test1(struct perf_evsel *evsel, struct machine *machine)
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{
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int err;
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2014-10-10 00:13:41 +08:00
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struct hists *hists = evsel__hists(evsel);
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2014-05-23 17:04:42 +08:00
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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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* ======== ======= ============= ==============
|
|
|
|
|
* 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
|
|
|
|
|
*/
|
|
|
|
|
struct result expected[] = {
|
|
|
|
|
{ 0, 2000, "perf", "perf", "main" },
|
|
|
|
|
{ 0, 1000, "bash", "[kernel]", "page_fault" },
|
|
|
|
|
{ 0, 1000, "bash", "bash", "main" },
|
|
|
|
|
{ 0, 1000, "bash", "bash", "xmalloc" },
|
|
|
|
|
{ 0, 1000, "perf", "[kernel]", "page_fault" },
|
|
|
|
|
{ 0, 1000, "perf", "[kernel]", "schedule" },
|
|
|
|
|
{ 0, 1000, "perf", "libc", "free" },
|
|
|
|
|
{ 0, 1000, "perf", "libc", "malloc" },
|
|
|
|
|
{ 0, 1000, "perf", "perf", "cmd_record" },
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
symbol_conf.use_callchain = false;
|
|
|
|
|
symbol_conf.cumulate_callchain = false;
|
2015-08-11 18:30:48 +08:00
|
|
|
perf_evsel__reset_sample_bit(evsel, CALLCHAIN);
|
2014-05-23 17:04:42 +08:00
|
|
|
|
2015-12-23 01:07:01 +08:00
|
|
|
setup_sorting(NULL);
|
2014-05-23 17:04:42 +08:00
|
|
|
callchain_register_param(&callchain_param);
|
|
|
|
|
|
|
|
|
|
err = add_hist_entries(hists, machine);
|
|
|
|
|
if (err < 0)
|
|
|
|
|
goto out;
|
|
|
|
|
|
|
|
|
|
err = do_test(hists, expected, ARRAY_SIZE(expected), NULL, 0);
|
|
|
|
|
|
|
|
|
|
out:
|
|
|
|
|
del_hist_entries(hists);
|
|
|
|
|
reset_output_field();
|
|
|
|
|
return err;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* callcain + NO children */
|
|
|
|
|
static int test2(struct perf_evsel *evsel, struct machine *machine)
|
|
|
|
|
{
|
|
|
|
|
int err;
|
2014-10-10 00:13:41 +08:00
|
|
|
struct hists *hists = evsel__hists(evsel);
|
2014-05-23 17:04:42 +08:00
|
|
|
/*
|
|
|
|
|
* expected output:
|
|
|
|
|
*
|
|
|
|
|
* Overhead Command Shared Object Symbol
|
|
|
|
|
* ======== ======= ============= ==============
|
|
|
|
|
* 20.00% perf perf [.] main
|
|
|
|
|
* |
|
|
|
|
|
* --- main
|
|
|
|
|
*
|
|
|
|
|
* 10.00% bash [kernel] [k] page_fault
|
|
|
|
|
* |
|
|
|
|
|
* --- page_fault
|
|
|
|
|
* malloc
|
|
|
|
|
* main
|
|
|
|
|
*
|
|
|
|
|
* 10.00% bash bash [.] main
|
|
|
|
|
* |
|
|
|
|
|
* --- main
|
|
|
|
|
*
|
|
|
|
|
* 10.00% bash bash [.] xmalloc
|
|
|
|
|
* |
|
|
|
|
|
* --- xmalloc
|
|
|
|
|
* malloc
|
|
|
|
|
* xmalloc <--- NOTE: there's a cycle
|
|
|
|
|
* malloc
|
|
|
|
|
* xmalloc
|
|
|
|
|
* main
|
|
|
|
|
*
|
|
|
|
|
* 10.00% perf [kernel] [k] page_fault
|
|
|
|
|
* |
|
|
|
|
|
* --- page_fault
|
|
|
|
|
* sys_perf_event_open
|
|
|
|
|
* run_command
|
|
|
|
|
* main
|
|
|
|
|
*
|
|
|
|
|
* 10.00% perf [kernel] [k] schedule
|
|
|
|
|
* |
|
|
|
|
|
* --- schedule
|
|
|
|
|
* run_command
|
|
|
|
|
* main
|
|
|
|
|
*
|
|
|
|
|
* 10.00% perf libc [.] free
|
|
|
|
|
* |
|
|
|
|
|
* --- free
|
|
|
|
|
* cmd_record
|
|
|
|
|
* run_command
|
|
|
|
|
* main
|
|
|
|
|
*
|
|
|
|
|
* 10.00% perf libc [.] malloc
|
|
|
|
|
* |
|
|
|
|
|
* --- malloc
|
|
|
|
|
* cmd_record
|
|
|
|
|
* run_command
|
|
|
|
|
* main
|
|
|
|
|
*
|
|
|
|
|
* 10.00% perf perf [.] cmd_record
|
|
|
|
|
* |
|
|
|
|
|
* --- cmd_record
|
|
|
|
|
* run_command
|
|
|
|
|
* main
|
|
|
|
|
*
|
|
|
|
|
*/
|
|
|
|
|
struct result expected[] = {
|
|
|
|
|
{ 0, 2000, "perf", "perf", "main" },
|
|
|
|
|
{ 0, 1000, "bash", "[kernel]", "page_fault" },
|
|
|
|
|
{ 0, 1000, "bash", "bash", "main" },
|
|
|
|
|
{ 0, 1000, "bash", "bash", "xmalloc" },
|
|
|
|
|
{ 0, 1000, "perf", "[kernel]", "page_fault" },
|
|
|
|
|
{ 0, 1000, "perf", "[kernel]", "schedule" },
|
|
|
|
|
{ 0, 1000, "perf", "libc", "free" },
|
|
|
|
|
{ 0, 1000, "perf", "libc", "malloc" },
|
|
|
|
|
{ 0, 1000, "perf", "perf", "cmd_record" },
|
|
|
|
|
};
|
|
|
|
|
struct callchain_result expected_callchain[] = {
|
|
|
|
|
{
|
|
|
|
|
1, { { "perf", "main" }, },
|
|
|
|
|
},
|
|
|
|
|
{
|
|
|
|
|
3, { { "[kernel]", "page_fault" },
|
|
|
|
|
{ "libc", "malloc" },
|
|
|
|
|
{ "bash", "main" }, },
|
|
|
|
|
},
|
|
|
|
|
{
|
|
|
|
|
1, { { "bash", "main" }, },
|
|
|
|
|
},
|
|
|
|
|
{
|
|
|
|
|
6, { { "bash", "xmalloc" },
|
|
|
|
|
{ "libc", "malloc" },
|
|
|
|
|
{ "bash", "xmalloc" },
|
|
|
|
|
{ "libc", "malloc" },
|
|
|
|
|
{ "bash", "xmalloc" },
|
|
|
|
|
{ "bash", "main" }, },
|
|
|
|
|
},
|
|
|
|
|
{
|
|
|
|
|
4, { { "[kernel]", "page_fault" },
|
|
|
|
|
{ "[kernel]", "sys_perf_event_open" },
|
|
|
|
|
{ "perf", "run_command" },
|
|
|
|
|
{ "perf", "main" }, },
|
|
|
|
|
},
|
|
|
|
|
{
|
|
|
|
|
3, { { "[kernel]", "schedule" },
|
|
|
|
|
{ "perf", "run_command" },
|
|
|
|
|
{ "perf", "main" }, },
|
|
|
|
|
},
|
|
|
|
|
{
|
|
|
|
|
4, { { "libc", "free" },
|
|
|
|
|
{ "perf", "cmd_record" },
|
|
|
|
|
{ "perf", "run_command" },
|
|
|
|
|
{ "perf", "main" }, },
|
|
|
|
|
},
|
|
|
|
|
{
|
|
|
|
|
4, { { "libc", "malloc" },
|
|
|
|
|
{ "perf", "cmd_record" },
|
|
|
|
|
{ "perf", "run_command" },
|
|
|
|
|
{ "perf", "main" }, },
|
|
|
|
|
},
|
|
|
|
|
{
|
|
|
|
|
3, { { "perf", "cmd_record" },
|
|
|
|
|
{ "perf", "run_command" },
|
|
|
|
|
{ "perf", "main" }, },
|
|
|
|
|
},
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
symbol_conf.use_callchain = true;
|
|
|
|
|
symbol_conf.cumulate_callchain = false;
|
2015-08-11 18:30:48 +08:00
|
|
|
perf_evsel__set_sample_bit(evsel, CALLCHAIN);
|
2014-05-23 17:04:42 +08:00
|
|
|
|
2015-12-23 01:07:01 +08:00
|
|
|
setup_sorting(NULL);
|
2014-05-23 17:04:42 +08:00
|
|
|
callchain_register_param(&callchain_param);
|
|
|
|
|
|
|
|
|
|
err = add_hist_entries(hists, machine);
|
|
|
|
|
if (err < 0)
|
|
|
|
|
goto out;
|
|
|
|
|
|
|
|
|
|
err = do_test(hists, expected, ARRAY_SIZE(expected),
|
|
|
|
|
expected_callchain, ARRAY_SIZE(expected_callchain));
|
|
|
|
|
|
|
|
|
|
out:
|
|
|
|
|
del_hist_entries(hists);
|
|
|
|
|
reset_output_field();
|
|
|
|
|
return err;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* NO callchain + children */
|
|
|
|
|
static int test3(struct perf_evsel *evsel, struct machine *machine)
|
|
|
|
|
{
|
|
|
|
|
int err;
|
2014-10-10 00:13:41 +08:00
|
|
|
struct hists *hists = evsel__hists(evsel);
|
2014-05-23 17:04:42 +08:00
|
|
|
/*
|
|
|
|
|
* expected output:
|
|
|
|
|
*
|
|
|
|
|
* Children Self Command Shared Object Symbol
|
|
|
|
|
* ======== ======== ======= ============= =======================
|
|
|
|
|
* 70.00% 20.00% perf perf [.] main
|
|
|
|
|
* 50.00% 0.00% perf perf [.] run_command
|
|
|
|
|
* 30.00% 10.00% bash bash [.] main
|
|
|
|
|
* 30.00% 10.00% perf perf [.] cmd_record
|
|
|
|
|
* 20.00% 0.00% bash libc [.] malloc
|
|
|
|
|
* 10.00% 10.00% bash [kernel] [k] page_fault
|
2014-12-23 12:36:21 +08:00
|
|
|
* 10.00% 10.00% bash bash [.] xmalloc
|
2014-05-23 17:04:42 +08:00
|
|
|
* 10.00% 10.00% perf [kernel] [k] page_fault
|
|
|
|
|
* 10.00% 10.00% perf libc [.] malloc
|
2014-12-23 12:36:21 +08:00
|
|
|
* 10.00% 10.00% perf [kernel] [k] schedule
|
|
|
|
|
* 10.00% 10.00% perf libc [.] free
|
|
|
|
|
* 10.00% 0.00% perf [kernel] [k] sys_perf_event_open
|
2014-05-23 17:04:42 +08:00
|
|
|
*/
|
|
|
|
|
struct result expected[] = {
|
|
|
|
|
{ 7000, 2000, "perf", "perf", "main" },
|
|
|
|
|
{ 5000, 0, "perf", "perf", "run_command" },
|
|
|
|
|
{ 3000, 1000, "bash", "bash", "main" },
|
|
|
|
|
{ 3000, 1000, "perf", "perf", "cmd_record" },
|
|
|
|
|
{ 2000, 0, "bash", "libc", "malloc" },
|
|
|
|
|
{ 1000, 1000, "bash", "[kernel]", "page_fault" },
|
2014-12-23 12:36:21 +08:00
|
|
|
{ 1000, 1000, "bash", "bash", "xmalloc" },
|
2014-05-23 17:04:42 +08:00
|
|
|
{ 1000, 1000, "perf", "[kernel]", "page_fault" },
|
2014-12-23 12:36:21 +08:00
|
|
|
{ 1000, 1000, "perf", "[kernel]", "schedule" },
|
2014-05-23 17:04:42 +08:00
|
|
|
{ 1000, 1000, "perf", "libc", "free" },
|
|
|
|
|
{ 1000, 1000, "perf", "libc", "malloc" },
|
2014-12-23 12:36:21 +08:00
|
|
|
{ 1000, 0, "perf", "[kernel]", "sys_perf_event_open" },
|
2014-05-23 17:04:42 +08:00
|
|
|
};
|
|
|
|
|
|
|
|
|
|
symbol_conf.use_callchain = false;
|
|
|
|
|
symbol_conf.cumulate_callchain = true;
|
2015-08-11 18:30:48 +08:00
|
|
|
perf_evsel__reset_sample_bit(evsel, CALLCHAIN);
|
2014-05-23 17:04:42 +08:00
|
|
|
|
2015-12-23 01:07:01 +08:00
|
|
|
setup_sorting(NULL);
|
2014-05-23 17:04:42 +08:00
|
|
|
callchain_register_param(&callchain_param);
|
|
|
|
|
|
|
|
|
|
err = add_hist_entries(hists, machine);
|
|
|
|
|
if (err < 0)
|
|
|
|
|
goto out;
|
|
|
|
|
|
|
|
|
|
err = do_test(hists, expected, ARRAY_SIZE(expected), NULL, 0);
|
|
|
|
|
|
|
|
|
|
out:
|
|
|
|
|
del_hist_entries(hists);
|
|
|
|
|
reset_output_field();
|
|
|
|
|
return err;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* callchain + children */
|
|
|
|
|
static int test4(struct perf_evsel *evsel, struct machine *machine)
|
|
|
|
|
{
|
|
|
|
|
int err;
|
2014-10-10 00:13:41 +08:00
|
|
|
struct hists *hists = evsel__hists(evsel);
|
2014-05-23 17:04:42 +08:00
|
|
|
/*
|
|
|
|
|
* expected output:
|
|
|
|
|
*
|
|
|
|
|
* Children Self Command Shared Object Symbol
|
|
|
|
|
* ======== ======== ======= ============= =======================
|
|
|
|
|
* 70.00% 20.00% perf perf [.] main
|
|
|
|
|
* |
|
|
|
|
|
* --- main
|
|
|
|
|
*
|
|
|
|
|
* 50.00% 0.00% perf perf [.] run_command
|
|
|
|
|
* |
|
|
|
|
|
* --- run_command
|
|
|
|
|
* main
|
|
|
|
|
*
|
|
|
|
|
* 30.00% 10.00% bash bash [.] main
|
|
|
|
|
* |
|
|
|
|
|
* --- main
|
|
|
|
|
*
|
|
|
|
|
* 30.00% 10.00% perf perf [.] cmd_record
|
|
|
|
|
* |
|
|
|
|
|
* --- cmd_record
|
|
|
|
|
* run_command
|
|
|
|
|
* main
|
|
|
|
|
*
|
|
|
|
|
* 20.00% 0.00% bash libc [.] malloc
|
|
|
|
|
* |
|
|
|
|
|
* --- malloc
|
|
|
|
|
* |
|
|
|
|
|
* |--50.00%-- xmalloc
|
|
|
|
|
* | main
|
|
|
|
|
* --50.00%-- main
|
|
|
|
|
*
|
|
|
|
|
* 10.00% 10.00% bash [kernel] [k] page_fault
|
|
|
|
|
* |
|
|
|
|
|
* --- page_fault
|
|
|
|
|
* malloc
|
|
|
|
|
* main
|
|
|
|
|
*
|
2014-12-23 12:36:21 +08:00
|
|
|
* 10.00% 10.00% bash bash [.] xmalloc
|
2014-05-23 17:04:42 +08:00
|
|
|
* |
|
2014-12-23 12:36:21 +08:00
|
|
|
* --- xmalloc
|
|
|
|
|
* malloc
|
|
|
|
|
* xmalloc <--- NOTE: there's a cycle
|
|
|
|
|
* malloc
|
|
|
|
|
* xmalloc
|
2014-05-23 17:04:42 +08:00
|
|
|
* main
|
|
|
|
|
*
|
|
|
|
|
* 10.00% 0.00% perf [kernel] [k] sys_perf_event_open
|
|
|
|
|
* |
|
|
|
|
|
* --- sys_perf_event_open
|
|
|
|
|
* run_command
|
|
|
|
|
* main
|
|
|
|
|
*
|
|
|
|
|
* 10.00% 10.00% perf [kernel] [k] page_fault
|
|
|
|
|
* |
|
|
|
|
|
* --- page_fault
|
|
|
|
|
* sys_perf_event_open
|
|
|
|
|
* run_command
|
|
|
|
|
* main
|
|
|
|
|
*
|
2014-12-23 12:36:21 +08:00
|
|
|
* 10.00% 10.00% perf [kernel] [k] schedule
|
|
|
|
|
* |
|
|
|
|
|
* --- schedule
|
|
|
|
|
* run_command
|
|
|
|
|
* main
|
|
|
|
|
*
|
2014-05-23 17:04:42 +08:00
|
|
|
* 10.00% 10.00% perf libc [.] free
|
|
|
|
|
* |
|
|
|
|
|
* --- free
|
|
|
|
|
* cmd_record
|
|
|
|
|
* run_command
|
|
|
|
|
* main
|
|
|
|
|
*
|
|
|
|
|
* 10.00% 10.00% perf libc [.] malloc
|
|
|
|
|
* |
|
|
|
|
|
* --- malloc
|
|
|
|
|
* cmd_record
|
|
|
|
|
* run_command
|
|
|
|
|
* main
|
|
|
|
|
*
|
|
|
|
|
*/
|
|
|
|
|
struct result expected[] = {
|
|
|
|
|
{ 7000, 2000, "perf", "perf", "main" },
|
|
|
|
|
{ 5000, 0, "perf", "perf", "run_command" },
|
|
|
|
|
{ 3000, 1000, "bash", "bash", "main" },
|
|
|
|
|
{ 3000, 1000, "perf", "perf", "cmd_record" },
|
|
|
|
|
{ 2000, 0, "bash", "libc", "malloc" },
|
|
|
|
|
{ 1000, 1000, "bash", "[kernel]", "page_fault" },
|
2014-12-23 12:36:21 +08:00
|
|
|
{ 1000, 1000, "bash", "bash", "xmalloc" },
|
2014-05-23 17:04:42 +08:00
|
|
|
{ 1000, 0, "perf", "[kernel]", "sys_perf_event_open" },
|
|
|
|
|
{ 1000, 1000, "perf", "[kernel]", "page_fault" },
|
2014-12-23 12:36:21 +08:00
|
|
|
{ 1000, 1000, "perf", "[kernel]", "schedule" },
|
2014-05-23 17:04:42 +08:00
|
|
|
{ 1000, 1000, "perf", "libc", "free" },
|
|
|
|
|
{ 1000, 1000, "perf", "libc", "malloc" },
|
|
|
|
|
};
|
|
|
|
|
struct callchain_result expected_callchain[] = {
|
|
|
|
|
{
|
|
|
|
|
1, { { "perf", "main" }, },
|
|
|
|
|
},
|
|
|
|
|
{
|
|
|
|
|
2, { { "perf", "run_command" },
|
|
|
|
|
{ "perf", "main" }, },
|
|
|
|
|
},
|
|
|
|
|
{
|
|
|
|
|
1, { { "bash", "main" }, },
|
|
|
|
|
},
|
|
|
|
|
{
|
|
|
|
|
3, { { "perf", "cmd_record" },
|
|
|
|
|
{ "perf", "run_command" },
|
|
|
|
|
{ "perf", "main" }, },
|
|
|
|
|
},
|
|
|
|
|
{
|
|
|
|
|
4, { { "libc", "malloc" },
|
|
|
|
|
{ "bash", "xmalloc" },
|
|
|
|
|
{ "bash", "main" },
|
|
|
|
|
{ "bash", "main" }, },
|
|
|
|
|
},
|
|
|
|
|
{
|
|
|
|
|
3, { { "[kernel]", "page_fault" },
|
|
|
|
|
{ "libc", "malloc" },
|
|
|
|
|
{ "bash", "main" }, },
|
|
|
|
|
},
|
|
|
|
|
{
|
2014-12-23 12:36:21 +08:00
|
|
|
6, { { "bash", "xmalloc" },
|
|
|
|
|
{ "libc", "malloc" },
|
|
|
|
|
{ "bash", "xmalloc" },
|
|
|
|
|
{ "libc", "malloc" },
|
|
|
|
|
{ "bash", "xmalloc" },
|
|
|
|
|
{ "bash", "main" }, },
|
2014-05-23 17:04:42 +08:00
|
|
|
},
|
|
|
|
|
{
|
|
|
|
|
3, { { "[kernel]", "sys_perf_event_open" },
|
|
|
|
|
{ "perf", "run_command" },
|
|
|
|
|
{ "perf", "main" }, },
|
|
|
|
|
},
|
|
|
|
|
{
|
|
|
|
|
4, { { "[kernel]", "page_fault" },
|
|
|
|
|
{ "[kernel]", "sys_perf_event_open" },
|
|
|
|
|
{ "perf", "run_command" },
|
|
|
|
|
{ "perf", "main" }, },
|
|
|
|
|
},
|
2014-12-23 12:36:21 +08:00
|
|
|
{
|
|
|
|
|
3, { { "[kernel]", "schedule" },
|
|
|
|
|
{ "perf", "run_command" },
|
|
|
|
|
{ "perf", "main" }, },
|
|
|
|
|
},
|
2014-05-23 17:04:42 +08:00
|
|
|
{
|
|
|
|
|
4, { { "libc", "free" },
|
|
|
|
|
{ "perf", "cmd_record" },
|
|
|
|
|
{ "perf", "run_command" },
|
|
|
|
|
{ "perf", "main" }, },
|
|
|
|
|
},
|
|
|
|
|
{
|
|
|
|
|
4, { { "libc", "malloc" },
|
|
|
|
|
{ "perf", "cmd_record" },
|
|
|
|
|
{ "perf", "run_command" },
|
|
|
|
|
{ "perf", "main" }, },
|
|
|
|
|
},
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
symbol_conf.use_callchain = true;
|
|
|
|
|
symbol_conf.cumulate_callchain = true;
|
2015-08-11 18:30:48 +08:00
|
|
|
perf_evsel__set_sample_bit(evsel, CALLCHAIN);
|
2014-05-23 17:04:42 +08:00
|
|
|
|
2015-12-23 01:07:01 +08:00
|
|
|
setup_sorting(NULL);
|
2016-07-04 20:16:21 +08:00
|
|
|
|
|
|
|
|
callchain_param = callchain_param_default;
|
2014-05-23 17:04:42 +08:00
|
|
|
callchain_register_param(&callchain_param);
|
|
|
|
|
|
|
|
|
|
err = add_hist_entries(hists, machine);
|
|
|
|
|
if (err < 0)
|
|
|
|
|
goto out;
|
|
|
|
|
|
|
|
|
|
err = do_test(hists, expected, ARRAY_SIZE(expected),
|
|
|
|
|
expected_callchain, ARRAY_SIZE(expected_callchain));
|
|
|
|
|
|
|
|
|
|
out:
|
|
|
|
|
del_hist_entries(hists);
|
|
|
|
|
reset_output_field();
|
|
|
|
|
return err;
|
|
|
|
|
}
|
|
|
|
|
|
perf tests: Pass the subtest index to each test routine
Some tests have sub-tests we want to run, so allow passing this.
Wang tried to avoid having to touch all tests, but then, having the
test.func in an anonymous union makes the build fail on older compilers,
like the one in RHEL6, where:
test a = {
.func = foo,
};
fails.
To fix it leave the func pointer in the main structure and pass the subtest
index to all tests, end result function is the same, but we have just one
function pointer, not two, with and without the subtest index as an argument.
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-5genj0ficwdmelpoqlds0u4y@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-11-19 23:01:48 +08:00
|
|
|
int test__hists_cumulate(int subtest __maybe_unused)
|
2014-05-23 17:04:42 +08:00
|
|
|
{
|
|
|
|
|
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,
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
TEST_ASSERT_VAL("No memory", evlist);
|
|
|
|
|
|
perf tools: Add parse_events_error interface
Adding support to return error information from parse_events function.
Following struct will be populated by parse_events function on return:
struct parse_events_error {
int idx;
char *str;
char *help;
};
where 'idx' is the position in the string where the parsing failed,
'str' contains dynamically allocated error string describing the error
and 'help' is optional help string.
The change contains reporting function, which currently does not display
anything. The code changes to supply error data for specific event types
are coming in next patches. However this is what the expected output is:
$ sudo perf record -e 'sched:krava' ls
event syntax error: 'sched:krava'
\___ unknown tracepoint
...
$ perf record -e 'cpu/even=0x1/' ls
event syntax error: 'cpu/even=0x1/'
\___ unknown term
valid terms: pc,any,inv,edge,cmask,event,in_tx,ldlat,umask,in_tx_cp,offcore_rsp,config,config1,config2,name,period,branch_type
...
$ perf record -e cycles,cache-mises ls
event syntax error: '..es,cache-mises'
\___ parser error
...
The output functions cut the beginning of the event string so the error
starts up to 10th character and cut the end of the string of it crosses
the terminal width.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1429729824-13932-2-git-send-email-jolsa@kernel.org
[ Renamed 'error' variables to 'err', not to clash with util.h error() ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-04-23 03:10:16 +08:00
|
|
|
err = parse_events(evlist, "cpu-clock", NULL);
|
2014-05-23 17:04:42 +08:00
|
|
|
if (err)
|
|
|
|
|
goto out;
|
2016-01-11 21:48:03 +08:00
|
|
|
err = TEST_FAIL;
|
2014-05-23 17:04:42 +08:00
|
|
|
|
|
|
|
|
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;
|
|
|
|
|
}
|
