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a9c5e6c1e9
Call it 'nr', as in this context it should be expressive enough, i.e.:
# perf trace -e sched:*waking/nr=8,call-graph=fp/
0.000 :0/0 sched:sched_waking:comm=rcu_sched pid=10 prio=120 target_cpu=001
try_to_wake_up ([kernel.kallsyms])
sched_clock ([kernel.kallsyms])
3.933 :0/0 sched:sched_waking:comm=rcu_sched pid=10 prio=120 target_cpu=001
try_to_wake_up ([kernel.kallsyms])
sched_clock ([kernel.kallsyms])
3.970 IPDL Backgroun/3622 sched:sched_waking:comm=Gecko_IOThread pid=3569 prio=120 target_cpu=003
try_to_wake_up ([kernel.kallsyms])
__libc_write (/usr/lib64/libpthread-2.26.so)
20.069 IPDL Backgroun/3622 sched:sched_waking:comm=Gecko_IOThread pid=3569 prio=120 target_cpu=003
try_to_wake_up ([kernel.kallsyms])
__libc_write (/usr/lib64/libpthread-2.26.so)
37.170 IPDL Backgroun/3622 sched:sched_waking:comm=Gecko_IOThread pid=3569 prio=120 target_cpu=003
try_to_wake_up ([kernel.kallsyms])
__libc_write (/usr/lib64/libpthread-2.26.so)
53.267 IPDL Backgroun/3622 sched:sched_waking:comm=Gecko_IOThread pid=3569 prio=120 target_cpu=003
try_to_wake_up ([kernel.kallsyms])
__libc_write (/usr/lib64/libpthread-2.26.so)
70.365 IPDL Backgroun/3622 sched:sched_waking:comm=Gecko_IOThread pid=3569 prio=120 target_cpu=003
try_to_wake_up ([kernel.kallsyms])
__libc_write (/usr/lib64/libpthread-2.26.so)
75.781 Web Content/3649 sched:sched_waking:comm=JS Helper pid=3670 prio=120 target_cpu=000
try_to_wake_up ([kernel.kallsyms])
try_to_wake_up ([kernel.kallsyms])
wake_up_q ([kernel.kallsyms])
futex_wake ([kernel.kallsyms])
do_futex ([kernel.kallsyms])
__x64_sys_futex ([kernel.kallsyms])
do_syscall_64 ([kernel.kallsyms])
entry_SYSCALL_64_after_hwframe ([kernel.kallsyms])
pthread_cond_signal@@GLIBC_2.3.2 (/usr/lib64/libpthread-2.26.so)
#
# perf trace -e sched:*switch/nr=2/,block:*_plug/nr=4/,block:*_unplug/nr=1/,net:*dev_queue/nr=3,max-stack=16/
0.000 :0/0 sched:sched_switch:swapper/0:0 [120] S ==> trace:3367 [120]
0.046 :0/0 sched:sched_switch:swapper/1:0 [120] S ==> kworker/u16:58:2722 [120]
570.670 irq/50-iwlwifi/680 net:net_dev_queue:dev=wlp3s0 skbaddr=0xffff93498051ef00 len=66
__dev_queue_xmit ([kernel.kallsyms])
1106.141 jbd2/dm-0-8/476 block:block_plug:[jbd2/dm-0-8]
1106.175 jbd2/dm-0-8/476 block:block_unplug:[jbd2/dm-0-8] 1
1618.088 kworker/u16:30/2694 block:block_plug:[kworker/u16:30]
1810.000 :0/0 net:net_dev_queue:dev=vnet0 skbaddr=0xffff93498051ef00 len=52
__dev_queue_xmit ([kernel.kallsyms])
3857.974 :0/0 net:net_dev_queue:dev=vnet0 skbaddr=0xffff93498051f900 len=52
__dev_queue_xmit ([kernel.kallsyms])
4790.277 jbd2/dm-2-8/748 block:block_plug:[jbd2/dm-2-8]
4790.448 jbd2/dm-2-8/748 block:block_plug:[jbd2/dm-2-8]
#
The global --max-events has precendence:
# trace --max-events 3 -e sched:*switch/nr=2/,block:*_plug/nr=4/,block:*_unplug/nr=1/,net:*dev_queue/nr=3,max-stack=16/
0.000 :0/0 sched:sched_switch:swapper/0:0 [120] S ==> qemu-system-x86:2252 [120]
0.029 qemu-system-x8/2252 sched:sched_switch:qemu-system-x86:2252 [120] D ==> swapper/0:0 [120]
58.047 DNS Res~er #14/31661 net:net_dev_queue:dev=wlp3s0 skbaddr=0xffff9346966af100 len=84
__dev_queue_xmit ([kernel.kallsyms])
__libc_send (/usr/lib64/libpthread-2.26.so)
#
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: https://lkml.kernel.org/n/tip-s4jswltvh660ughvg9nwngah@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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| .. | ||
| android.txt | ||
| asciidoc.conf | ||
| asciidoctor-extensions.rb | ||
| Build.txt | ||
| callchain-overhead-calculation.txt | ||
| examples.txt | ||
| intel-bts.txt | ||
| intel-pt.txt | ||
| itrace.txt | ||
| jit-interface.txt | ||
| jitdump-specification.txt | ||
| Makefile | ||
| manpage-1.72.xsl | ||
| manpage-base.xsl | ||
| manpage-bold-literal.xsl | ||
| manpage-normal.xsl | ||
| manpage-suppress-sp.xsl | ||
| perf-annotate.txt | ||
| perf-archive.txt | ||
| perf-bench.txt | ||
| perf-buildid-cache.txt | ||
| perf-buildid-list.txt | ||
| perf-c2c.txt | ||
| perf-config.txt | ||
| perf-data.txt | ||
| perf-diff.txt | ||
| perf-evlist.txt | ||
| perf-ftrace.txt | ||
| perf-help.txt | ||
| perf-inject.txt | ||
| perf-kallsyms.txt | ||
| perf-kmem.txt | ||
| perf-kvm.txt | ||
| perf-list.txt | ||
| perf-lock.txt | ||
| perf-mem.txt | ||
| perf-probe.txt | ||
| perf-record.txt | ||
| perf-report.txt | ||
| perf-sched.txt | ||
| perf-script-perl.txt | ||
| perf-script-python.txt | ||
| perf-script.txt | ||
| perf-stat.txt | ||
| perf-test.txt | ||
| perf-timechart.txt | ||
| perf-top.txt | ||
| perf-trace.txt | ||
| perf-version.txt | ||
| perf.data-file-format.txt | ||
| perf.txt | ||
| perfconfig.example | ||
| tips.txt | ||