linux/tools
Namhyung Kim e7024fc378 perf diff: Fix to sort by baseline field by default
The currently perf diff didn't add the baseline and delta (or other
compute) fields to the sort list so output will be sorted by other
fields like alphabetical order of DSO or symbol as below example.

Fix it by adding hpp formats for the fields and provides default compare
functions.

Before:

  $ perf diff
  # Event 'cycles'
  #
  # Baseline    Delta  Shared Object       Symbol
  # ........  .......  ..................  ...............................
  #
                       [bridge]            [k] ip_sabotage_in
                       [btrfs]             [k] __etree_search.constprop.47
       0.01%           [btrfs]             [k] btrfs_file_mmap
       0.01%   -0.01%  [btrfs]             [k] btrfs_getattr
                       [e1000e]            [k] e1000_watchdog
       0.00%           [kernel.vmlinux]    [k] PageHuge
       0.00%           [kernel.vmlinux]    [k] __acct_update_integrals
       0.00%           [kernel.vmlinux]    [k] __activate_page
                       [kernel.vmlinux]    [k] __alloc_fd
       0.02%   +0.02%  [kernel.vmlinux]    [k] __alloc_pages_nodemask
       ...

After:

  # Baseline    Delta  Shared Object       Symbol
  # ........  .......  ..................  ................................
  #
      24.73%   -4.62%  perf                [.] append_chain_children
       7.96%   -1.29%  perf                [.] dso__find_symbol
       6.97%   -2.07%  libc-2.20.so        [.] vfprintf
       4.61%   +0.88%  libc-2.20.so        [.] __fprintf_chk
       4.41%   +2.43%  perf                [.] sort__comm_cmp
       4.10%   -0.16%  perf                [.] comm__str
       4.03%   -0.93%  perf                [.] machine__findnew_thread_time
       3.82%   +3.09%  perf                [.] __hists__add_entry
       2.95%   -0.18%  perf                [.] sort__dso_cmp
       ...

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1419656793-32756-1-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-01-02 23:27:18 -03:00
..
cgroup
firewire
hv tools: hv: ignore ENOBUFS and ENOMEM in the KVP daemon 2014-11-26 19:01:12 -08:00
include tools: Adopt roundup_pow_of_two 2014-12-17 11:58:15 -03:00
lguest tools/lguest: offer VIRTIO_F_ANY_LAYOUT for net device. 2013-07-15 11:18:32 +09:30
lib tools lib: Move asm-generic/bitops/find.h code to tools/include and tools/lib 2014-12-17 11:14:48 -03:00
net tools: bpf_jit_disasm: increase image buffer size 2014-05-16 16:44:08 -04:00
nfsd
perf perf diff: Fix to sort by baseline field by default 2015-01-02 23:27:18 -03:00
power tools / cpupower: Fix no idle state information return value 2014-12-19 23:01:12 +01:00
scripts tools lib traceevent: Add global QUIET_CC_FPIC build output 2013-12-19 16:18:10 -03:00
testing selftests/exec: Use %zu to format size_t 2014-12-22 11:11:36 -07:00
thermal/tmon calloc/xcalloc: Fix argument order 2014-12-09 10:06:29 -03:00
time tools: add script to test udelay 2014-07-23 10:16:38 -07:00
usb USB patches for 3.19-rc1 2014-12-14 14:57:16 -08:00
virtio tools/virtio: add virtio 1.0 in vringh_test 2014-12-15 23:49:22 +02:00
vm mm/page_owner: keep track of page owners 2014-12-13 12:42:48 -08:00
Makefile tools/liblockdep: Build liblockdep from tools/Makefile 2014-05-08 13:34:45 -04:00