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27fafab59a
The -q/--quiet option is to suppress any message. Sometimes users just want to see the numbers and it can be used for that case. Before: $ perf report | head -15 Failed to open /lib/modules/3.19.3-3-ARCH/kernel/fs/ext4/ext4.ko.gz, continuing without symbols Failed to open /lib/modules/3.19.3-3-ARCH/kernel/fs/jbd2/jbd2.ko.gz, continuing without symbols Failed to open /tmp/perf-14507.map, continuing without symbols ... # To display the perf.data header info, please use --header/--header-only options. # # # Total Lost Samples: 0 # # Samples: 39K of event 'cycles' # Event count (approx.): 30444796573 # # Overhead Command Shared Object Symbol # ........ ........... ................... ......................... # 9.28% swapper [kernel.vmlinux] [k] intel_idle 5.64% swapper [kernel.vmlinux] [k] native_write_msr_safe 1.93% swapper [kernel.vmlinux] [k] __switch_to 1.89% swapper [kernel.vmlinux] [k] menu_select 1.75% sched-pipe [kernel.vmlinux] [k] __switch_to After: $ perf report -q | head 9.28% swapper [kernel.vmlinux] [k] intel_idle 5.64% swapper [kernel.vmlinux] [k] native_write_msr_safe 1.93% swapper [kernel.vmlinux] [k] __switch_to 1.89% swapper [kernel.vmlinux] [k] menu_select 1.75% sched-pipe [kernel.vmlinux] [k] __switch_to 1.67% swapper [kernel.vmlinux] [k] cpu_startup_entry 1.48% sched-pipe [kernel.vmlinux] [k] enqueue_entity 1.46% swapper [kernel.vmlinux] [k] __schedule 1.36% swapper [kernel.vmlinux] [k] native_read_tsc 1.34% sched-pipe [kernel.vmlinux] [k] __schedule Signed-off-by: Namhyung Kim <namhyung@kernel.org> Suggested-and-Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: kernel-team@lge.com Link: http://lkml.kernel.org/r/20170217081742.17417-4-namhyung@kernel.org [ Removed builtin-report.c verbose > 0 hunk added to the previous patch ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
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.. | ||
arch | ||
bench | ||
Documentation | ||
jvmti | ||
pmu-events | ||
python | ||
scripts | ||
tests | ||
trace | ||
ui | ||
util | ||
.gitignore | ||
Build | ||
builtin-annotate.c | ||
builtin-bench.c | ||
builtin-buildid-cache.c | ||
builtin-buildid-list.c | ||
builtin-c2c.c | ||
builtin-config.c | ||
builtin-data.c | ||
builtin-diff.c | ||
builtin-evlist.c | ||
builtin-ftrace.c | ||
builtin-help.c | ||
builtin-inject.c | ||
builtin-kallsyms.c | ||
builtin-kmem.c | ||
builtin-kvm.c | ||
builtin-list.c | ||
builtin-lock.c | ||
builtin-mem.c | ||
builtin-probe.c | ||
builtin-record.c | ||
builtin-report.c | ||
builtin-sched.c | ||
builtin-script.c | ||
builtin-stat.c | ||
builtin-timechart.c | ||
builtin-top.c | ||
builtin-trace.c | ||
builtin-version.c | ||
builtin.h | ||
check-headers.sh | ||
command-list.txt | ||
CREDITS | ||
design.txt | ||
Makefile | ||
Makefile.config | ||
Makefile.perf | ||
MANIFEST | ||
perf-archive.sh | ||
perf-completion.sh | ||
perf-read-vdso.c | ||
perf-sys.h | ||
perf-with-kcore.sh | ||
perf.c | ||
perf.h |