tjh.dev / kernel
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perf: Remove leftover useless options to record trace events from scripts

-f, -c 1, -R are now useless for trace events recording, moreover
-M is useless and event hurts.

Remove them from the documentation examples and from record scripts.

Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Tom Zanussi <tzanussi@gmail.com>

Frederic Weisbecker e5a5f1f0 bc4b473f

+17 -21
+2 -4
tools/perf/Documentation/perf-trace-perl.txt
··· 49 49 As an example, the following perf record command can be used to record 50 50 all sched_wakeup events in the system: 51 51 52 - # perf record -c 1 -f -a -M -R -e sched:sched_wakeup 52 + # perf record -a -e sched:sched_wakeup 53 53 54 54 Traces meant to be processed using a script should be recorded with 55 - the above options: -c 1 says to sample every event, -a to enable 56 - system-wide collection, -M to multiplex the output, and -R to collect 57 - raw samples. 55 + the above option: -a to enable system-wide collection. 58 56 59 57 The format file for the sched_wakep event defines the following fields 60 58 (see /sys/kernel/debug/tracing/events/sched/sched_wakeup/format):
+4 -6
tools/perf/Documentation/perf-trace-python.txt
··· 93 93 the sys_enter events: 94 94 95 95 ---- 96 - # perf record -c 1 -f -a -M -R -e raw_syscalls:sys_enter 96 + # perf record -a -e raw_syscalls:sys_enter 97 97 98 98 ^C[ perf record: Woken up 1 times to write data ] 99 99 [ perf record: Captured and wrote 56.545 MB perf.data (~2470503 samples) ] ··· 359 359 # cat kernel-source/tools/perf/scripts/python/bin/syscall-counts-record 360 360 361 361 #!/bin/bash 362 - perf record -c 1 -f -a -M -R -e raw_syscalls:sys_enter 362 + perf record -a -e raw_syscalls:sys_enter 363 363 ---- 364 364 365 365 The 'report' script is also a shell script with the same base name as ··· 449 449 As an example, the following perf record command can be used to record 450 450 all sched_wakeup events in the system: 451 451 452 - # perf record -c 1 -f -a -M -R -e sched:sched_wakeup 452 + # perf record -a -e sched:sched_wakeup 453 453 454 454 Traces meant to be processed using a script should be recorded with 455 - the above options: -c 1 says to sample every event, -a to enable 456 - system-wide collection, -M to multiplex the output, and -R to collect 457 - raw samples. 455 + the above option: -a to enable system-wide collection. 458 456 459 457 The format file for the sched_wakep event defines the following fields 460 458 (see /sys/kernel/debug/tracing/events/sched/sched_wakeup/format):
+1 -1
tools/perf/scripts/perl/bin/check-perf-trace-record
··· 1 1 #!/bin/bash 2 - perf record -c 1 -f -a -M -R -e kmem:kmalloc -e irq:softirq_entry -e kmem:kfree 2 + perf record -a -e kmem:kmalloc -e irq:softirq_entry -e kmem:kfree
+1 -1
tools/perf/scripts/perl/bin/failed-syscalls-record
··· 1 1 #!/bin/bash 2 - perf record -c 1 -f -a -M -R -e raw_syscalls:sys_exit $@ 2 + perf record -a -e raw_syscalls:sys_exit $@
+1 -1
tools/perf/scripts/perl/bin/rw-by-file-record
··· 1 1 #!/bin/bash 2 - perf record -c 1 -f -a -M -R -e syscalls:sys_enter_read -e syscalls:sys_enter_write $@ 2 + perf record -a -e syscalls:sys_enter_read -e syscalls:sys_enter_write $@ 3 3
+1 -1
tools/perf/scripts/perl/bin/rw-by-pid-record
··· 1 1 #!/bin/bash 2 - perf record -c 1 -f -a -M -R -e syscalls:sys_enter_read -e syscalls:sys_exit_read -e syscalls:sys_enter_write -e syscalls:sys_exit_write $@ 2 + perf record -a -e syscalls:sys_enter_read -e syscalls:sys_exit_read -e syscalls:sys_enter_write -e syscalls:sys_exit_write $@
+1 -1
tools/perf/scripts/perl/bin/rwtop-record
··· 1 1 #!/bin/bash 2 - perf record -c 1 -f -a -M -R -e syscalls:sys_enter_read -e syscalls:sys_exit_read -e syscalls:sys_enter_write -e syscalls:sys_exit_write $@ 2 + perf record -a -e syscalls:sys_enter_read -e syscalls:sys_exit_read -e syscalls:sys_enter_write -e syscalls:sys_exit_write $@
+1 -1
tools/perf/scripts/perl/bin/wakeup-latency-record
··· 1 1 #!/bin/bash 2 - perf record -c 1 -f -a -M -R -e sched:sched_switch -e sched:sched_wakeup $@ 2 + perf record -a -e sched:sched_switch -e sched:sched_wakeup $@ 3 3 4 4 5 5
+1 -1
tools/perf/scripts/perl/bin/workqueue-stats-record
··· 1 1 #!/bin/bash 2 - perf record -c 1 -f -a -M -R -e workqueue:workqueue_creation -e workqueue:workqueue_destruction -e workqueue:workqueue_execution -e workqueue:workqueue_insertion $@ 2 + perf record -a -e workqueue:workqueue_creation -e workqueue:workqueue_destruction -e workqueue:workqueue_execution -e workqueue:workqueue_insertion $@
+1 -1
tools/perf/scripts/python/bin/failed-syscalls-by-pid-record
··· 1 1 #!/bin/bash 2 - perf record -c 1 -f -a -M -R -e raw_syscalls:sys_exit $@ 2 + perf record -a -e raw_syscalls:sys_exit $@
+1 -1
tools/perf/scripts/python/bin/sctop-record
··· 1 1 #!/bin/bash 2 - perf record -c 1 -f -a -M -R -e raw_syscalls:sys_enter $@ 2 + perf record -a -e raw_syscalls:sys_enter $@
+1 -1
tools/perf/scripts/python/bin/syscall-counts-by-pid-record
··· 1 1 #!/bin/bash 2 - perf record -c 1 -f -a -M -R -e raw_syscalls:sys_enter $@ 2 + perf record -a -e raw_syscalls:sys_enter $@
+1 -1
tools/perf/scripts/python/bin/syscall-counts-record
··· 1 1 #!/bin/bash 2 - perf record -c 1 -f -a -M -R -e raw_syscalls:sys_enter $@ 2 + perf record -a -e raw_syscalls:sys_enter $@