aboutsummaryrefslogtreecommitdiffstats
path: root/tools/perf/util/include
diff options
context:
space:
mode:
authorArnaldo Carvalho de Melo <acme@redhat.com>2009-07-10 22:47:28 -0300
committerIngo Molnar <mingo@elte.hu>2009-07-11 10:24:11 +0200
commit52d422de22b26d96bbdfbc605eb31c2994df6d0b (patch)
treed335960701bc5b3cbefb842672d0d162d8684633 /tools/perf/util/include
parent71a851b4d2a815adcfac09c1adda7ef6811fde66 (diff)
downloadmrst-s0i3-test-52d422de22b26d96bbdfbc605eb31c2994df6d0b.tar.gz
mrst-s0i3-test-52d422de22b26d96bbdfbc605eb31c2994df6d0b.tar.xz
mrst-s0i3-test-52d422de22b26d96bbdfbc605eb31c2994df6d0b.zip
perf report: Adjust column width to the values sampled
Auto-adjust column width of perf report output to the longest occuring string length. Example: [acme@doppio pahole]$ perf report --sort comm,dso,symbol | head -13 12.79% pahole /usr/lib64/libdw-0.141.so [.] __libdw_find_attr 8.90% pahole /lib64/libc-2.10.1.so [.] _int_malloc 8.68% pahole /usr/lib64/libdw-0.141.so [.] __libdw_form_val_len 8.15% pahole /lib64/libc-2.10.1.so [.] __GI_strcmp 6.80% pahole /lib64/libc-2.10.1.so [.] __tsearch 5.54% pahole ./build/libdwarves.so.1.0.0 [.] tag__recode_dwarf_type [acme@doppio pahole]$ [acme@doppio pahole]$ perf report --sort comm,dso,symbol -d /lib64/libc-2.10.1.so | head -10 21.92% pahole /lib64/libc-2.10.1.so [.] _int_malloc 20.08% pahole /lib64/libc-2.10.1.so [.] __GI_strcmp 16.75% pahole /lib64/libc-2.10.1.so [.] __tsearch [acme@doppio pahole]$ Also add these extra options to control the new behaviour: -w, --field-width Force each column width to the provided list, for large terminal readability. -t, --field-separator: Use a special separator character and don't pad with spaces, replacing all occurances of this separator in symbol names (and other output) with a '.' character, that thus it's the only non valid separator. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Frederic 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: <20090711014728.GH3452@ghostprotocols.net> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'tools/perf/util/include')
-rw-r--r--tools/perf/util/include/linux/kernel.h8
1 files changed, 8 insertions, 0 deletions
diff --git a/tools/perf/util/include/linux/kernel.h b/tools/perf/util/include/linux/kernel.h
index 99c1b3d1edd..a6b87390cb5 100644
--- a/tools/perf/util/include/linux/kernel.h
+++ b/tools/perf/util/include/linux/kernel.h
@@ -18,4 +18,12 @@
(type *)((char *)__mptr - offsetof(type, member)); })
#endif
+#ifndef max
+#define max(x, y) ({ \
+ typeof(x) _max1 = (x); \
+ typeof(y) _max2 = (y); \
+ (void) (&_max1 == &_max2); \
+ _max1 > _max2 ? _max1 : _max2; })
+#endif
+
#endif