Fwd: [about perf tool][PATCH 07/16] perf auxtrace: For reporting purposes, un-group AUX area event
Mert Gör
mertgor at dismail.de
Wed Apr 1 10:40:19 UTC 2020
I tried perf report but it gave that output :
hwpplayer1 at hwpplayer1-Aspire-V3-772G:~$ perf report
WARNING: perf not found for kernel 5.4.28
You may need to install the following packages for this specific kernel:
linux-tools-5.4.28-gnu
linux-cloud-tools-5.4.28-gnu
You may also want to install one of the following packages to keep up
to date:
linux-tools-gnu
linux-cloud-tools-gnu
hwpplayer1 at hwpplayer1-Aspire-V3-772G:~$ sudo apt-get install
linux-tools-5.4.28-gnu
Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Unable to locate package linux-tools-5.4.28-gnu
E: Couldn't find any package by glob 'linux-tools-5.4.28-gnu'
E: Couldn't find any package by regex 'linux-tools-5.4.28-gnu'
hwpplayer1 at hwpplayer1-Aspire-V3-772G:~$ sudo apt-get install
linux-cloud-tools-5.4.28-gnu
Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Unable to locate package linux-cloud-tools-5.4.28-gnu
E: Couldn't find any package by glob 'linux-cloud-tools-5.4.28-gnu'
E: Couldn't find any package by regex 'linux-cloud-tools-5.4.28-gnu'
hwpplayer1 at hwpplayer1-Aspire-V3-772G:~$ sudo apt-get install linux-tools-gnu
Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Unable to locate package linux-tools-gnu
hwpplayer1 at hwpplayer1-Aspire-V3-772G:~$ sudo apt-get install
linux-cloud-tools-gnu
Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Unable to locate package linux-cloud-tools-gnu
-------- Forwarded message -------
From: "Adrian Hunter" <adrian.hunter at intel.com>
To: "Arnaldo Carvalho de Melo" <acme at kernel.org>
CC: "Jiri Olsa" <jolsa at redhat.com>, "Andi Kleen" <ak at linux.intel.com>,
linux-kernel at vger.kernel.org, "Adrian Hunter" <adrian.hunter at intel.com>
Sent: April 1, 2020 1:19 PM
Subject: [PATCH 07/16] perf auxtrace: For reporting purposes, un-group
AUX area event
An AUX area event must be the group leader when recording traces in
sample mode, but that does not produce the expected results from
'perf report' because it expects the leader to provide samples. Rather
than teach 'perf report' about AUX area sampling, un-group the AUX
area event during processing, making the 2nd event the leader.
Example:
$ perf record -e '{intel_pt//u,branch-misses:u}' -c 1 uname
Linux
[ perf record: Woken up 1 times to write data ]
[ perf record: Captured and wrote 0.080 MB perf.data ]
Before:
$ perf report
Samples: 800 of events 'anon group { intel_pt//u, branch-misses:u }',
Event count (approx.): 800
Children Self Command Shared Object Symbol
0.00% 47.50% 0.00% 47.50% uname libc-2.28.so [.] _dl_addr
0.00% 16.38% 0.00% 16.38% uname ld-2.28.so [.] __GI___tunables_init
0.00% 54.75% 0.00% 4.75% uname ld-2.28.so [.] dl_main
0.00% 3.12% 0.00% 3.12% uname ld-2.28.so [.] _dl_map_object_from_fd
0.00% 2.38% 0.00% 2.38% uname ld-2.28.so [.] strcmp
0.00% 2.25% 0.00% 2.25% uname ld-2.28.so [.] _dl_check_map_versions
0.00% 2.00% 0.00% 2.00% uname ld-2.28.so [.] _dl_important_hwcaps
0.00% 2.00% 0.00% 2.00% uname ld-2.28.so [.] _dl_map_object_deps
0.00% 51.50% 0.00% 1.50% uname ld-2.28.so [.] _dl_sysdep_start
0.00% 1.25% 0.00% 1.25% uname ld-2.28.so [.] _dl_load_cache_lookup
0.00% 51.12% 0.00% 1.12% uname ld-2.28.so [.] _dl_start
0.00% 50.88% 0.00% 1.12% uname ld-2.28.so [.] do_lookup_x
0.00% 50.62% 0.00% 1.00% uname ld-2.28.so [.] _dl_lookup_symbol_x
0.00% 1.00% 0.00% 1.00% uname ld-2.28.so [.] _dl_map_object
0.00% 1.00% 0.00% 1.00% uname ld-2.28.so [.] _dl_next_ld_env_entry
0.00% 0.88% 0.00% 0.88% uname ld-2.28.so [.] _dl_cache_libcmp
0.00% 0.88% 0.00% 0.88% uname ld-2.28.so [.] _dl_new_object
0.00% 50.88% 0.00% 0.88% uname ld-2.28.so [.] _dl_relocate_object
0.00% 0.62% 0.00% 0.62% uname ld-2.28.so [.] _dl_init_paths
0.00% 0.62% 0.00% 0.62% uname ld-2.28.so [.] _dl_name_match_p
0.00% 0.50% 0.00% 0.50% uname ld-2.28.so [.] get_common_indeces.constprop.1
0.00% 0.50% 0.00% 0.50% uname ld-2.28.so [.] memmove
0.00% 0.50% 0.00% 0.50% uname ld-2.28.so [.] memset
0.00% 0.50% 0.00% 0.50% uname ld-2.28.so [.] open_verify.constprop.11
0.00% 0.38% 0.00% 0.38% uname ld-2.28.so [.] _dl_check_all_versions
0.00% 0.38% 0.00% 0.38% uname ld-2.28.so [.] _dl_find_dso_for_object
0.00% 0.38% 0.00% 0.38% uname ld-2.28.so [.] init_tls
0.00% 0.25% 0.00% 0.25% uname ld-2.28.so [.] __tunable_get_val
0.00% 0.25% 0.00% 0.25% uname ld-2.28.so [.] _dl_add_to_namespace_list
0.00% 0.25% 0.00% 0.25% uname ld-2.28.so [.] _dl_determine_tlsoffset
0.00% 0.25% 0.00% 0.25% uname ld-2.28.so [.] _dl_discover_osversion
0.00% 0.25% 0.00% 0.25% uname ld-2.28.so [.] calloc at plt
0.00% 0.25% 0.00% 0.25% uname ld-2.28.so [.] malloc
0.00% 0.25% 0.00% 0.25% uname ld-2.28.so [.] malloc at plt
0.00% 0.25% 0.00% 0.25% uname libc-2.28.so [.] _nl_load_locale_from_archive
0.00% 0.25% 0.00% 0.25% uname [unknown] [k] 0xffffffffa3a00010
0.00% 0.12% 0.00% 0.12% uname ld-2.28.so [.]
__libc_scratch_buffer_set_array_size
0.00% 0.12% 0.00% 0.12% uname ld-2.28.so [.] _dl_allocate_tls_storage
0.00% 0.12% 0.00% 0.12% uname ld-2.28.so [.] _dl_catch_exception
0.00% 0.12% 0.00% 0.12% uname ld-2.28.so [.] _dl_setup_hash
0.00% 0.12% 0.00% 0.12% uname ld-2.28.so [.] _dl_sort_maps
0.00% 0.12% 0.00% 0.12% uname ld-2.28.so [.] _dl_sysdep_read_whole_file
0.00% 0.12% 0.00% 0.12% uname ld-2.28.so [.] access
0.00% 0.12% 0.00% 0.12% uname ld-2.28.so [.] calloc
0.00% 0.12% 0.00% 0.12% uname ld-2.28.so [.] mmap64
0.00% 0.12% 0.00% 0.12% uname ld-2.28.so [.] openaux
0.00% 0.12% 0.00% 0.12% uname ld-2.28.so [.]
rtld_lock_default_lock_recursive
0.00% 0.12% 0.00% 0.12% uname ld-2.28.so [.]
rtld_lock_default_unlock_recursive
0.00% 0.12% 0.00% 0.12% uname ld-2.28.so [.] strchr
0.00% 0.12% 0.00% 0.12% uname ld-2.28.so [.] strlen
0.00% 0.12% 0.00% 0.12% uname ld-2.28.so [.] 0x0000000000001080
0.00% 0.12% 0.00% 0.12% uname libc-2.28.so [.] __strchrnul_avx2
0.00% 0.12% 0.00% 0.12% uname libc-2.28.so [.] _nl_normalize_codeset
0.00% 0.12% 0.00% 0.12% uname libc-2.28.so [.] malloc
0.00% 0.12% 0.00% 0.12% uname [unknown] [k] 0xffffffffa3a011f0
0.00% 50.00% 0.00% 0.00% uname ld-2.28.so [.] _dl_start_user
0.00% 50.00% 0.00% 0.00% uname [unknown] [.] 0000000000000000
After:
Samples: 800 of event 'branch-misses:u', Event count (approx.): 800
Children Self Command Shared Object Symbol
54.75% 4.75% uname ld-2.28.so [.] dl_main
51.50% 1.50% uname ld-2.28.so [.] _dl_sysdep_start
51.12% 1.12% uname ld-2.28.so [.] _dl_start
50.88% 0.88% uname ld-2.28.so [.] _dl_relocate_object
50.88% 1.12% uname ld-2.28.so [.] do_lookup_x
50.62% 1.00% uname ld-2.28.so [.] _dl_lookup_symbol_x
50.00% 0.00% uname ld-2.28.so [.] _dl_start_user
50.00% 0.00% uname [unknown] [.] 0000000000000000
47.50% 47.50% uname libc-2.28.so [.] _dl_addr
16.38% 16.38% uname ld-2.28.so [.] __GI___tunables_init
3.12% 3.12% uname ld-2.28.so [.] _dl_map_object_from_fd
2.38% 2.38% uname ld-2.28.so [.] strcmp
2.25% 2.25% uname ld-2.28.so [.] _dl_check_map_versions
2.00% 2.00% uname ld-2.28.so [.] _dl_important_hwcaps
2.00% 2.00% uname ld-2.28.so [.] _dl_map_object_deps
1.25% 1.25% uname ld-2.28.so [.] _dl_load_cache_lookup
1.00% 1.00% uname ld-2.28.so [.] _dl_map_object
1.00% 1.00% uname ld-2.28.so [.] _dl_next_ld_env_entry
0.88% 0.88% uname ld-2.28.so [.] _dl_cache_libcmp
0.88% 0.88% uname ld-2.28.so [.] _dl_new_object
0.62% 0.62% uname ld-2.28.so [.] _dl_init_paths
0.62% 0.62% uname ld-2.28.so [.] _dl_name_match_p
0.50% 0.50% uname ld-2.28.so [.] get_common_indeces.constprop.1
0.50% 0.50% uname ld-2.28.so [.] memmove
0.50% 0.50% uname ld-2.28.so [.] memset
0.50% 0.50% uname ld-2.28.so [.] open_verify.constprop.11
0.38% 0.38% uname ld-2.28.so [.] _dl_check_all_versions
0.38% 0.38% uname ld-2.28.so [.] _dl_find_dso_for_object
0.38% 0.38% uname ld-2.28.so [.] init_tls
0.25% 0.25% uname ld-2.28.so [.] __tunable_get_val
0.25% 0.25% uname ld-2.28.so [.] _dl_add_to_namespace_list
0.25% 0.25% uname ld-2.28.so [.] _dl_determine_tlsoffset
0.25% 0.25% uname ld-2.28.so [.] _dl_discover_osversion
0.25% 0.25% uname ld-2.28.so [.] calloc at plt
0.25% 0.25% uname ld-2.28.so [.] malloc
0.25% 0.25% uname ld-2.28.so [.] malloc at plt
0.25% 0.25% uname libc-2.28.so [.] _nl_load_locale_from_archive
0.25% 0.25% uname [unknown] [k] 0xffffffffa3a00010
0.12% 0.12% uname ld-2.28.so [.] __libc_scratch_buffer_set_array_size
0.12% 0.12% uname ld-2.28.so [.] _dl_allocate_tls_storage
0.12% 0.12% uname ld-2.28.so [.] _dl_catch_exception
0.12% 0.12% uname ld-2.28.so [.] _dl_setup_hash
0.12% 0.12% uname ld-2.28.so [.] _dl_sort_maps
0.12% 0.12% uname ld-2.28.so [.] _dl_sysdep_read_whole_file
0.12% 0.12% uname ld-2.28.so [.] access
0.12% 0.12% uname ld-2.28.so [.] calloc
0.12% 0.12% uname ld-2.28.so [.] mmap64
0.12% 0.12% uname ld-2.28.so [.] openaux
0.12% 0.12% uname ld-2.28.so [.] rtld_lock_default_lock_recursive
0.12% 0.12% uname ld-2.28.so [.] rtld_lock_default_unlock_recursive
0.12% 0.12% uname ld-2.28.so [.] strchr
0.12% 0.12% uname ld-2.28.so [.] strlen
0.12% 0.12% uname ld-2.28.so [.] 0x0000000000001080
0.12% 0.12% uname libc-2.28.so [.] __strchrnul_avx2
0.12% 0.12% uname libc-2.28.so [.] _nl_normalize_codeset
0.12% 0.12% uname libc-2.28.so [.] malloc
0.12% 0.12% uname [unknown] [k] 0xffffffffa3a011f0
Signed-off-by: Adrian Hunter <adrian.hunter at intel.com>
---
tools/perf/util/auxtrace.c | 60 ++++++++++++++++++++++++++++++++++----
1 file changed, 55 insertions(+), 5 deletions(-)
diff --git a/tools/perf/util/auxtrace.c b/tools/perf/util/auxtrace.c
index 2c4ad6838766..b60bae8e395c 100644
--- a/tools/perf/util/auxtrace.c
+++ b/tools/perf/util/auxtrace.c
@@ -1234,29 +1234,79 @@ int perf_event__synthesize_auxtrace_info(struct
auxtrace_record *itr,
return err;
}
+static void unleader_evsel(struct evlist *evlist, struct evsel *leader)
+{
+ struct evsel *new_leader = NULL;
+ struct evsel *evsel;
+
+ /* Find new leader for the group */
+ evlist__for_each_entry(evlist, evsel) {
+ if (evsel->leader != leader || evsel == leader)
+ continue;
+ if (!new_leader)
+ new_leader = evsel;
+ evsel->leader = new_leader;
+ }
+
+ /* Update group information */
+ if (new_leader) {
+ zfree(&new_leader->group_name);
+ new_leader->group_name = leader->group_name;
+ leader->group_name = NULL;
+
+ new_leader->core.nr_members = leader->core.nr_members - 1;
+ leader->core.nr_members = 1;
+ }
+}
+
+static void unleader_auxtrace(struct perf_session *session)
+{
+ struct evsel *evsel;
+
+ evlist__for_each_entry(session->evlist, evsel) {
+ if (auxtrace__evsel_is_auxtrace(session, evsel) &&
+ perf_evsel__is_group_leader(evsel)) {
+ unleader_evsel(session->evlist, evsel);
+ }
+ }
+}
+
int perf_event__process_auxtrace_info(struct perf_session *session,
union perf_event *event)
{
enum auxtrace_type type = event->auxtrace_info.type;
+ int err;
if (dump_trace)
fprintf(stdout, " type: %u\n", type);
switch (type) {
case PERF_AUXTRACE_INTEL_PT:
- return intel_pt_process_auxtrace_info(event, session);
+ err = intel_pt_process_auxtrace_info(event, session);
+ break;
case PERF_AUXTRACE_INTEL_BTS:
- return intel_bts_process_auxtrace_info(event, session);
+ err = intel_bts_process_auxtrace_info(event, session);
+ break;
case PERF_AUXTRACE_ARM_SPE:
- return arm_spe_process_auxtrace_info(event, session);
+ err = arm_spe_process_auxtrace_info(event, session);
+ break;
case PERF_AUXTRACE_CS_ETM:
- return cs_etm__process_auxtrace_info(event, session);
+ err = cs_etm__process_auxtrace_info(event, session);
+ break;
case PERF_AUXTRACE_S390_CPUMSF:
- return s390_cpumsf_process_auxtrace_info(event, session);
+ err = s390_cpumsf_process_auxtrace_info(event, session);
+ break;
case PERF_AUXTRACE_UNKNOWN:
default:
return -EINVAL;
}
+
+ if (err)
+ return err;
+
+ unleader_auxtrace(session);
+
+ return 0;
}
s64 perf_event__process_auxtrace(struct perf_session *session,
--
2.17.1
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