linux/tools
Namhyung Kim 63b42fce86 perf diff: Add -q/--quiet option
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.

Committer notes:

Before:

  # perf diff | head -10
  Failed to open /tmp/perf-6678.map, continuing without symbols
  Failed to open /tmp/perf-6678.map, continuing without symbols
  Failed to open /tmp/perf-2646.map, continuing without symbols
  # Event 'cycles'
  #
  # Baseline  Delta Abs  Shared Object               Symbol
  # ........  .........  ..........................  ............................................
  #
       5.36%     -1.76%  [kernel.vmlinux]            [k] intel_idle
       2.80%     +1.48%  firefox                     [.] 0x00000000000101fe
      57.12%     -1.25%  libxul.so                   [.] 0x00000000009bea92
       1.36%     -1.11%  [kernel.vmlinux]            [k] __schedule
       4.26%     -1.00%  perf-6678.map               [.] 0x00007fac4b0e9320

After:

  # perf diff -q | head -10
       5.36%     -1.76%  [kernel.vmlinux]            [k] intel_idle
       2.80%     +1.48%  firefox                     [.] 0x00000000000101fe
      57.12%     -1.25%  libxul.so                   [.] 0x00000000009bea92
       1.36%     -1.11%  [kernel.vmlinux]            [k] __schedule
       4.26%     -1.00%  perf-6678.map               [.] 0x00007fac4b0e9320
       1.86%     +0.95%  [kernel.vmlinux]            [k] update_blocked_averages
       0.80%     -0.70%  [kernel.vmlinux]            [k] native_sched_clock
       0.74%     -0.58%  [kernel.vmlinux]            [k] native_write_msr
       0.76%     -0.56%  qemu-system-x86_64          [.] 0x00000000002395c0
                 +0.54%  libpulsecommon-10.0.so      [.] 0x000000000002d91b
  #

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/20170217081742.17417-5-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-02-20 11:47:08 -03:00
..
accounting tools: move accounting tool from Documentation 2016-09-23 13:07:15 -06:00
arch tools headers: Sync {tools/,}arch/powerpc/include/uapi/asm/kvm.h, {tools/,}arch/x86/include/asm/cpufeatures.h and {tools/,}arch/arm/include/uapi/asm/kvm.h 2017-01-30 16:01:20 -03:00
build perf build: Add special fixdep cleaning rule 2017-02-17 16:04:38 -03:00
cgroup
firewire
gpio Merge branch 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild 2016-12-17 16:24:13 -08:00
hv Char/Misc driver patches for 4.10-rc1 2016-12-13 12:11:01 -08:00
iio tools: iio: iio_generic_buffer: drop unneeded parentheses 2016-10-23 19:34:10 +01:00
include tools include: Introduce linux/compiler-gcc.h 2017-02-13 14:29:29 -03:00
kvm/kvm_stat
laptop tools: move laptops dslm tool from Documentation 2016-09-23 13:07:21 -06:00
leds tools/leds: Add uledmon program for monitoring userspace LEDs 2016-11-22 12:07:02 +01:00
lguest tools/lguest: Don't bork the terminal in case of wrong args 2016-09-08 08:05:24 +02:00
lib tools lib traceevent: It's preempt not prempt 2017-02-17 10:31:44 -03:00
net
nfsd
objtool objtool: Fix IRET's opcode 2017-01-19 08:39:44 +01:00
pcmcia tools: move pcmcia crc32hash tool from Documentation 2016-09-23 13:07:27 -06:00
perf perf diff: Add -q/--quiet option 2017-02-20 11:47:08 -03:00
power Merge branch 'turbostat' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux 2016-12-25 14:01:28 -08:00
scripts tools: Suppress request for warning options not existent in clang 2017-02-14 10:34:35 -03:00
spi spi: spidev_test: Fix input file check when transferring file 2016-11-04 09:56:09 -06:00
testing Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-01-27 12:54:16 -08:00
thermal/tmon
time
usb usbip: add missing compile time generated files to .gitignore 2016-12-06 08:37:41 +01:00
virtio tools/virtio/ringtest: tweaks for s390 2017-01-19 23:46:32 +02:00
vm tools/vm/page_owner: increase temporary buffer size 2016-07-26 16:19:19 -07:00
Makefile tools/leds: Add uledmon program for monitoring userspace LEDs 2016-11-22 12:07:02 +01:00