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authorArnaldo Carvalho de Melo <acme@redhat.com>2009-12-28 22:48:36 -0200
committerIngo Molnar <mingo@elte.hu>2009-12-30 12:00:00 +0100
commit9c443dfdd31eddea6cbe6ee0ca469fbcc4e1dc3b (patch)
tree6e217aaf89b941fbbc7b905046d5350392d642db /drivers/net/phy/Kconfig
parentcdbae31408cf39372402076cf2e189ec693daa71 (diff)
perf diff: Fix support for all --sort combinations
When we finish creating the hist_entries we _already_ have them sorted "by name", in fact by what is in --sort, that is exactly how we can find the pairs in perf_session__match_hists as 'comm', 'dso' & 'symbol' all are strings we need to find the matches in the baseline session. So only do the sort by hits followed by a resort by --sort if we need to find the position for shwowing the --displacement of hist entries. Now all these modes work correctly: Example is a simple 'perf record -f find / > /dev/null' ran twice then followed by the following commands: $ perf diff -f --sort comm # Baseline Delta Command # ........ .......... ....... # 0.00% +100.00% find $ perf diff -f --sort dso # Baseline Delta Shared Object # ........ .......... .................. # 59.97% -0.44% [kernel] 21.17% +0.28% libc-2.5.so 18.49% +0.16% [ext3] 0.37% find $ perf diff -f --sort symbol | head -8 # Baseline Delta Symbol # ........ .......... ...... # 6.21% +0.36% [k] ext3fs_dirhash 3.43% +0.41% [.] __GI_strlen 3.53% +0.16% [k] __kmalloc 3.17% +0.49% [k] system_call 3.06% +0.37% [k] ext3_htree_store_dirent $ perf diff -f --sort dso,symbol | head -8 # Baseline Delta Shared Object Symbol # ........ .......... .................. ...... # 6.21% +0.36% [ext3] [k] ext3fs_dirhash 3.43% +0.41% libc-2.5.so [.] __GI_strlen 3.53% +0.16% [kernel] [k] __kmalloc 3.17% +0.49% [kernel] [k] system_call 3.06% +0.37% [ext3] [k] ext3_htree_store_dirent $ And we don't have to do two expensive resorts in the common, non --displacement case. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Frédéric Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> LKML-Reference: <1262047716-23171-5-git-send-email-acme@infradead.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'drivers/net/phy/Kconfig')
0 files changed, 0 insertions, 0 deletions