linux-stable/tools/perf
David Ahern 5a3446bc64 perf stat: better error message for unsupported events
For unsupported events (e.g., H/W events when running in a VM)
perf stat currently fails with the error message:

      Error: open_counter returned with 2 (No such file or directory).
    /bin/dmesg may provide additional information.

      Fatal: Not all events could be opened.

dmesg is of no help and it is not clear as to why it fails to
open the counter. This patch changes the error message to

      Error: cache-misses event is not supported.
      Fatal: Not all events could be opened.

Cc: Ingo Molnar <mingo@elte.hu>
Cc: Paul Mackerras <paulus@samba.org>
Cc: a.p.zijlstra@chello.nl
LPU-Reference: <1294597272-17335-1-git-send-email-daahern@cisco.com>
Signed-off-by: David Ahern <daahern@cisco.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2011-01-10 11:34:53 -02:00
..
arch Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2010-08-06 09:30:52 -07:00
bench perf bench: Add feature that measures the performance of the arch/x86/lib/memcpy_64.S memcpy routines via 'perf bench mem' 2010-11-26 08:15:57 +01:00
Documentation perf probe: Fix line range description since a single file is allowed 2010-12-21 16:20:12 -02:00
scripts perf script: Finish the rename from trace to script 2010-12-25 11:29:02 -02:00
util perf tools: Pass whole attr to event selectors 2011-01-07 01:44:36 -02:00
.gitignore perf tools: .gitignore += config.make config.make.autogen 2010-06-17 10:24:31 -03:00
builtin-annotate.c perf record,report,annotate,diff: Process events in order 2010-12-21 20:17:51 -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 Merge commit 'v2.6.37-rc8' into perf/core 2011-01-04 08:08:54 +01:00
builtin-diff.c perf symbols: Add symfs option for off-box analysis using specified tree 2010-12-21 20:17:51 -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 session: Fallback to unordered processing if no sample_id_all 2010-12-21 20:17:51 -02:00
builtin-kmem.c perf session: Fallback to unordered processing if no sample_id_all 2010-12-21 20:17:51 -02:00
builtin-kvm.c perf options: Type check all the remaining OPT_ variants 2010-05-17 16:22:41 -03:00
builtin-list.c perf list: Fix large list output by using the pager 2009-08-13 09:05:48 +02:00
builtin-lock.c perf session: Fallback to unordered processing if no sample_id_all 2010-12-21 20:17:51 -02:00
builtin-probe.c perf probe: Fix use of kernel image path given by 'k' option 2010-12-16 09:41:45 -02:00
builtin-record.c perf tools: Refactor all_tids to hold nr and the map 2011-01-04 00:24:16 -02:00
builtin-report.c perf symbols: Add symfs option for off-box analysis using specified tree 2010-12-21 20:17:51 -02:00
builtin-sched.c perf sched: Fix allocation result check 2011-01-10 10:48:47 -02:00
builtin-script.c perf script: Make some lists static 2011-01-05 14:53:59 -02:00
builtin-stat.c perf stat: better error message for unsupported events 2011-01-10 11:34:53 -02:00
builtin-test.c perf tools: Pass whole attr to event selectors 2011-01-07 01:44:36 -02:00
builtin-timechart.c perf timechart: Adjust perf timechart to the new power events 2011-01-04 08:16:54 +01:00
builtin-top.c perf tools: Refactor all_tids to hold nr and the map 2011-01-04 00:24:16 -02:00
builtin.h perf: Rename 'perf trace' to 'perf script' 2010-11-16 19:37:44 +01:00
command-list.txt Merge branch 'perf/rename' into perf/core 2010-12-01 09:22:19 +01:00
CREDITS perf_counter tools: Add CREDITS file for Git contributors 2009-06-24 19:54:29 +02:00
design.txt perf: Fix few typos + cosmetics 2010-01-13 17:39:44 +01:00
feature-tests.mak perf tools: Remove hardcoded include paths for elfutils 2010-11-19 16:38:04 -02:00
Makefile perf tools: Build with frame pointer 2011-01-06 18:04:54 -02:00
MANIFEST perf packaging: add memcpy to perf MANIFEST 2010-11-30 23:00:10 -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 evsel: Delete the event selectors at exit 2011-01-03 16:51:39 -02:00
perf.h perf, MIPS: Support cross compiling of tools/perf for MIPS 2010-10-12 13:34:37 +02:00