[0/4] perf tools: Add printing perf_event_attr `config` and `id` symbol in perf_event_attr__fprintf()
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From: Yang Jihong <yangjihong1@huawei.com>
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Subject: [PATCH 0/4] perf tools: Add printing perf_event_attr `config` and
`id` symbol in perf_event_attr__fprintf()
Date: Wed, 19 Apr 2023 12:29:08 +0000
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| Series |
perf tools: Add printing perf_event_attr `config` and `id` symbol in perf_event_attr__fprintf()
|
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Message
Yang Jihong
April 19, 2023, 12:29 p.m. UTC
Add printing perf_event_attr `config` and `id` symbol to improve the readability of debugging information.
Before:
# perf --debug verbose=2 record -e cycles,cpu-clock,sched:sched_switch,branch-load-misses,r101 -C 0 true
<SNIP>
------------------------------------------------------------
perf_event_attr:
size 136
{ sample_period, sample_freq } 4000
sample_type IP|TID|TIME|CPU|PERIOD|IDENTIFIER
read_format ID
disabled 1
inherit 1
freq 1
sample_id_all 1
exclude_guest 1
------------------------------------------------------------
sys_perf_event_open: pid -1 cpu 0 group_fd -1 flags 0x8 = 6
------------------------------------------------------------
perf_event_attr:
type 1
size 136
{ sample_period, sample_freq } 4000
sample_type IP|TID|TIME|CPU|PERIOD|IDENTIFIER
read_format ID
disabled 1
inherit 1
freq 1
sample_id_all 1
exclude_guest 1
------------------------------------------------------------
sys_perf_event_open: pid -1 cpu 0 group_fd -1 flags 0x8 = 7
------------------------------------------------------------
perf_event_attr:
type 2
size 136
config 0x131
{ sample_period, sample_freq } 1
sample_type IP|TID|TIME|CPU|PERIOD|RAW|IDENTIFIER
read_format ID
disabled 1
inherit 1
sample_id_all 1
exclude_guest 1
------------------------------------------------------------
sys_perf_event_open: pid -1 cpu 0 group_fd -1 flags 0x8 = 8
------------------------------------------------------------
perf_event_attr:
type 3
size 136
config 0x10005
{ sample_period, sample_freq } 4000
sample_type IP|TID|TIME|CPU|PERIOD|IDENTIFIER
read_format ID
disabled 1
inherit 1
freq 1
sample_id_all 1
exclude_guest 1
------------------------------------------------------------
sys_perf_event_open: pid -1 cpu 0 group_fd -1 flags 0x8 = 10
------------------------------------------------------------
perf_event_attr:
type 4
size 136
config 0x101
{ sample_period, sample_freq } 4000
sample_type IP|TID|TIME|CPU|PERIOD|IDENTIFIER
read_format ID
disabled 1
inherit 1
freq 1
sample_id_all 1
exclude_guest 1
------------------------------------------------------------
sys_perf_event_open: pid -1 cpu 0 group_fd -1 flags 0x8 = 11
<SNIP>
After:
# perf --debug verbose=2 record -e cycles,cpu-clock,sched:sched_switch,branch-load-misses,r101 -C 0 true
<SNIP>
------------------------------------------------------------
perf_event_attr:
type 0 (PERF_TYPE_HARDWARE)
size 136
config 0 (PERF_COUNT_HW_CPU_CYCLES)
{ sample_period, sample_freq } 4000
sample_type IP|TID|TIME|CPU|PERIOD|IDENTIFIER
read_format ID
disabled 1
inherit 1
freq 1
sample_id_all 1
exclude_guest 1
------------------------------------------------------------
sys_perf_event_open: pid -1 cpu 0 group_fd -1 flags 0x8 = 6
------------------------------------------------------------
perf_event_attr:
type 1 (PERF_TYPE_SOFTWARE)
size 136
config 0 (PERF_COUNT_SW_CPU_CLOCK)
{ sample_period, sample_freq } 4000
sample_type IP|TID|TIME|CPU|PERIOD|IDENTIFIER
read_format ID
disabled 1
inherit 1
freq 1
sample_id_all 1
exclude_guest 1
------------------------------------------------------------
sys_perf_event_open: pid -1 cpu 0 group_fd -1 flags 0x8 = 7
------------------------------------------------------------
perf_event_attr:
type 2 (PERF_TYPE_TRACEPOINT)
size 136
config 0x131 (sched:sched_switch)
{ sample_period, sample_freq } 1
sample_type IP|TID|TIME|CPU|PERIOD|RAW|IDENTIFIER
read_format ID
disabled 1
inherit 1
sample_id_all 1
exclude_guest 1
------------------------------------------------------------
sys_perf_event_open: pid -1 cpu 0 group_fd -1 flags 0x8 = 8
------------------------------------------------------------
perf_event_attr:
type 3 (PERF_TYPE_HW_CACHE)
size 136
config 0x10005 (PERF_COUNT_HW_CACHE_RESULT_MISS | PERF_COUNT_HW_CACHE_OP_READ | PERF_COUNT_HW_CACHE_BPU)
{ sample_period, sample_freq } 4000
sample_type IP|TID|TIME|CPU|PERIOD|IDENTIFIER
read_format ID
disabled 1
inherit 1
freq 1
sample_id_all 1
exclude_guest 1
------------------------------------------------------------
sys_perf_event_open: pid -1 cpu 0 group_fd -1 flags 0x8 = 10
------------------------------------------------------------
perf_event_attr:
type 4 (PERF_TYPE_RAW)
size 136
config 0x101
{ sample_period, sample_freq } 4000
sample_type IP|TID|TIME|CPU|PERIOD|IDENTIFIER
read_format ID
disabled 1
inherit 1
freq 1
sample_id_all 1
exclude_guest 1
------------------------------------------------------------
sys_perf_event_open: pid -1 cpu 0 group_fd -1 flags 0x8 = 11
<SNIP>
Yang Jihong (4):
perf trace-event-info: Add tracepoint_id_to_name() helper
perf tools: Extend PRINT_ATTRf to support printing of members with a
value of 0
perf tools: Add printing perf_event_attr->type symbol in
perf_event_attr__fprintf()
perf tools: Add printing perf_event_attr->config symbol in
perf_event_attr__fprintf()
tools/perf/util/perf_event_attr_fprintf.c | 169 ++++++++++++++++++++--
tools/perf/util/trace-event-info.c | 13 ++
tools/perf/util/trace-event.h | 6 +
3 files changed, 179 insertions(+), 9 deletions(-)
Comments
Hello, PING. Thanks, Yang. On 2023/4/19 20:29, Yang Jihong wrote: > Add printing perf_event_attr `config` and `id` symbol to improve the readability of debugging information. > > Before: > > # perf --debug verbose=2 record -e cycles,cpu-clock,sched:sched_switch,branch-load-misses,r101 -C 0 true > <SNIP> > ------------------------------------------------------------ > perf_event_attr: > size 136 > { sample_period, sample_freq } 4000 > sample_type IP|TID|TIME|CPU|PERIOD|IDENTIFIER > read_format ID > disabled 1 > inherit 1 > freq 1 > sample_id_all 1 > exclude_guest 1 > ------------------------------------------------------------ > sys_perf_event_open: pid -1 cpu 0 group_fd -1 flags 0x8 = 6 > ------------------------------------------------------------ > perf_event_attr: > type 1 > size 136 > { sample_period, sample_freq } 4000 > sample_type IP|TID|TIME|CPU|PERIOD|IDENTIFIER > read_format ID > disabled 1 > inherit 1 > freq 1 > sample_id_all 1 > exclude_guest 1 > ------------------------------------------------------------ > sys_perf_event_open: pid -1 cpu 0 group_fd -1 flags 0x8 = 7 > ------------------------------------------------------------ > perf_event_attr: > type 2 > size 136 > config 0x131 > { sample_period, sample_freq } 1 > sample_type IP|TID|TIME|CPU|PERIOD|RAW|IDENTIFIER > read_format ID > disabled 1 > inherit 1 > sample_id_all 1 > exclude_guest 1 > ------------------------------------------------------------ > sys_perf_event_open: pid -1 cpu 0 group_fd -1 flags 0x8 = 8 > ------------------------------------------------------------ > perf_event_attr: > type 3 > size 136 > config 0x10005 > { sample_period, sample_freq } 4000 > sample_type IP|TID|TIME|CPU|PERIOD|IDENTIFIER > read_format ID > disabled 1 > inherit 1 > freq 1 > sample_id_all 1 > exclude_guest 1 > ------------------------------------------------------------ > sys_perf_event_open: pid -1 cpu 0 group_fd -1 flags 0x8 = 10 > ------------------------------------------------------------ > perf_event_attr: > type 4 > size 136 > config 0x101 > { sample_period, sample_freq } 4000 > sample_type IP|TID|TIME|CPU|PERIOD|IDENTIFIER > read_format ID > disabled 1 > inherit 1 > freq 1 > sample_id_all 1 > exclude_guest 1 > ------------------------------------------------------------ > sys_perf_event_open: pid -1 cpu 0 group_fd -1 flags 0x8 = 11 > <SNIP> > > After: > > # perf --debug verbose=2 record -e cycles,cpu-clock,sched:sched_switch,branch-load-misses,r101 -C 0 true > <SNIP> > ------------------------------------------------------------ > perf_event_attr: > type 0 (PERF_TYPE_HARDWARE) > size 136 > config 0 (PERF_COUNT_HW_CPU_CYCLES) > { sample_period, sample_freq } 4000 > sample_type IP|TID|TIME|CPU|PERIOD|IDENTIFIER > read_format ID > disabled 1 > inherit 1 > freq 1 > sample_id_all 1 > exclude_guest 1 > ------------------------------------------------------------ > sys_perf_event_open: pid -1 cpu 0 group_fd -1 flags 0x8 = 6 > ------------------------------------------------------------ > perf_event_attr: > type 1 (PERF_TYPE_SOFTWARE) > size 136 > config 0 (PERF_COUNT_SW_CPU_CLOCK) > { sample_period, sample_freq } 4000 > sample_type IP|TID|TIME|CPU|PERIOD|IDENTIFIER > read_format ID > disabled 1 > inherit 1 > freq 1 > sample_id_all 1 > exclude_guest 1 > ------------------------------------------------------------ > sys_perf_event_open: pid -1 cpu 0 group_fd -1 flags 0x8 = 7 > ------------------------------------------------------------ > perf_event_attr: > type 2 (PERF_TYPE_TRACEPOINT) > size 136 > config 0x131 (sched:sched_switch) > { sample_period, sample_freq } 1 > sample_type IP|TID|TIME|CPU|PERIOD|RAW|IDENTIFIER > read_format ID > disabled 1 > inherit 1 > sample_id_all 1 > exclude_guest 1 > ------------------------------------------------------------ > sys_perf_event_open: pid -1 cpu 0 group_fd -1 flags 0x8 = 8 > ------------------------------------------------------------ > perf_event_attr: > type 3 (PERF_TYPE_HW_CACHE) > size 136 > config 0x10005 (PERF_COUNT_HW_CACHE_RESULT_MISS | PERF_COUNT_HW_CACHE_OP_READ | PERF_COUNT_HW_CACHE_BPU) > { sample_period, sample_freq } 4000 > sample_type IP|TID|TIME|CPU|PERIOD|IDENTIFIER > read_format ID > disabled 1 > inherit 1 > freq 1 > sample_id_all 1 > exclude_guest 1 > ------------------------------------------------------------ > sys_perf_event_open: pid -1 cpu 0 group_fd -1 flags 0x8 = 10 > ------------------------------------------------------------ > perf_event_attr: > type 4 (PERF_TYPE_RAW) > size 136 > config 0x101 > { sample_period, sample_freq } 4000 > sample_type IP|TID|TIME|CPU|PERIOD|IDENTIFIER > read_format ID > disabled 1 > inherit 1 > freq 1 > sample_id_all 1 > exclude_guest 1 > ------------------------------------------------------------ > sys_perf_event_open: pid -1 cpu 0 group_fd -1 flags 0x8 = 11 > <SNIP> > > Yang Jihong (4): > perf trace-event-info: Add tracepoint_id_to_name() helper > perf tools: Extend PRINT_ATTRf to support printing of members with a > value of 0 > perf tools: Add printing perf_event_attr->type symbol in > perf_event_attr__fprintf() > perf tools: Add printing perf_event_attr->config symbol in > perf_event_attr__fprintf() > > tools/perf/util/perf_event_attr_fprintf.c | 169 ++++++++++++++++++++-- > tools/perf/util/trace-event-info.c | 13 ++ > tools/perf/util/trace-event.h | 6 + > 3 files changed, 179 insertions(+), 9 deletions(-) >