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9ea811973d
linux/tools/perf
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Jan Beulich 9ea811973d perf bench: Make "default" memcpy() selection actually use glibc's implementation 
Since arch/x86/lib/memcpy_64.S implements not only __memcpy, but also
memcpy, without further precautions this function will get chose by the
static linker for resolving all references, and hence the "default"
measurement didn't really measure anything else than the
"x86-64-unrolled" one.

Fix this by renaming (through the pre-processor) the conflicting symbol.

On my Westmere system, the glibc variant turns out to require about 4%
less instructions, but 15% more cycles for the default 1Mb block size
measured.

Cc: Ingo Molnar <mingo@elte.hu>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/4F16D6FD020000780006D72F@nat28.tlf.novell.com
Signed-off-by: Jan Beulich <jbeulich@suse.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-01-24 19:50:19 -02:00
..
arch perf tools: Make perf.data more self-descriptive (v8) 2011-10-07 17:01:24 -03:00
bench perf bench: Make "default" memcpy() selection actually use glibc's implementation 2012-01-24 19:50:19 -02:00
config perf tools: git mv tools/perf/{features-tests.mak,config/} 2011-04-19 08:18:36 -03:00
Documentation perf tools: Introduce per user view 2012-01-24 19:47:37 -02:00
python perf evlist: Store pointer to the cpu and thread maps 2011-01-31 12:40:52 -02:00
scripts perf script: Add drop monitor script 2011-09-29 16:41:37 -03:00
util perf tools: Introduce per user view 2012-01-24 19:47:37 -02:00
.gitignore perf tools: Makefile: Remove various and sundry cruft 2011-02-18 07:43:06 -02:00
builtin-annotate.c perf annotate: Get rid of field_sep check 2012-01-08 13:29:34 -02:00
builtin-bench.c perf options: Type check all the remaining OPT_ variants 2010-05-17 16:22:41 -03:00
builtin-buildid-cache.c perf buildid: add perfconfig option to specify buildid cache dir 2010-06-05 09:34:04 -03:00
builtin-buildid-list.c perf report: Accept fifos as input file 2011-12-23 17:01:03 -02:00
builtin-diff.c perf tools: Rename perf_event_ops to perf_tool 2011-11-28 10:39:28 -02:00
builtin-evlist.c perf report: Accept fifos as input file 2011-12-23 17:01:03 -02:00
builtin-help.c perf options: Type check all the remaining OPT_ variants 2010-05-17 16:22:41 -03:00
builtin-inject.c perf tools: Rename perf_event_ops to perf_tool 2011-11-28 10:39:28 -02:00
builtin-kmem.c perf kmem: Fix a memory leak 2012-01-08 13:27:54 -02:00
builtin-kvm.c perf kvm: Do guest-only counting by default 2012-01-06 15:47:37 -02:00
builtin-list.c perf list: Allow filtering list of events 2011-02-17 15:38:58 -02:00
builtin-lock.c perf report: Accept fifos as input file 2011-12-23 17:01:03 -02:00
builtin-probe.c perf tools: Eliminate duplicate code and use PATH_MAX consistently 2011-11-28 10:11:04 -02:00
builtin-record.c perf tools: Introduce per user view 2012-01-24 19:47:37 -02:00
builtin-report.c perf report: Accept fifos as input file 2011-12-23 17:01:03 -02:00
builtin-sched.c perf report: Accept fifos as input file 2011-12-23 17:01:03 -02:00
builtin-script.c perf script: Add missing closedir() calls 2012-01-08 12:35:41 -02:00
builtin-stat.c perf tools: Introduce per user view 2012-01-24 19:47:37 -02:00
builtin-test.c perf tools: Introduce per user view 2012-01-24 19:47:37 -02:00
builtin-timechart.c perf report: Accept fifos as input file 2011-12-23 17:01:03 -02:00
builtin-top.c perf tools: Introduce per user view 2012-01-24 19:47:37 -02:00
builtin.h perf tools: Make perf.data more self-descriptive (v8) 2011-10-07 17:01:24 -03:00
command-list.txt perf evlist: New command to list the names of events present in a perf.data file 2011-03-15 11:10:48 -03:00
CREDITS
design.txt perf: Fix few typos + cosmetics 2010-01-13 17:39:44 +01:00
Makefile perf tools: Rename perf_event_ops to perf_tool 2011-11-28 10:39:28 -02:00
MANIFEST perf tools: Add const.h to MANIFEST to make perf-tar-src-pkg work again 2012-01-06 15:52:18 -02:00
perf-archive.sh perf buildid: add perfconfig option to specify buildid cache dir 2010-06-05 09:34:04 -03:00
perf.c perf tools: Simplify debugfs mountpoint handling code 2011-11-28 10:11:28 -02:00
perf.h perf tools: Introduce per user view 2012-01-24 19:47:37 -02:00