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authorMasami Hiramatsu <masami.hiramatsu.pt@hitachi.com>2015-02-27 13:50:26 +0900
committerArnaldo Carvalho de Melo <acme@redhat.com>2015-02-27 15:52:33 -0300
commit8d8c8e4cb3014fcc51f0e127b4316043306f5bb0 (patch)
tree1fe04d062c0cd6041fbeaf1324a3f57cf2ad0536 /tools/perf/Documentation/perf-buildid-cache.txt
parent7335399a6a4bead9ef8b59ce7d811fc4e99ca98c (diff)
downloadlinux-8d8c8e4cb3014fcc51f0e127b4316043306f5bb0.tar.gz
perf buildid-cache: Add --purge FILE to remove all caches of FILE
Add --purge FILE to remove all caches of FILE. Since the current --remove FILE removes a cache which has same build-id of given FILE. Since the command takes a FILE path, it can confuse user who tries to remove cache about FILE path. ----- # ./perf buildid-cache -v --add ./perf Adding 133b7b5486d987a5ab5c3ebf4ea14941f45d4d4f ./perf: Ok # (update the ./perf binary) # ./perf buildid-cache -v --remove ./perf Removing 305bbd1be68f66eca7e2d78db294653031edfa79 ./perf: FAIL ./perf wasn't in the cache ----- Actually, the --remove's FAIL is not shown, it just silently fails. So, this patch adds --purge FILE action for such usecase. perf buildid-cache --purge FILE removes all caches which has same FILE path. In other words, it removes all caches including old binaries. ----- # ./perf buildid-cache -v --add ./perf Adding 133b7b5486d987a5ab5c3ebf4ea14941f45d4d4f ./perf: Ok # (update the ./perf binary) # ./perf buildid-cache -v --purge ./perf Removing 133b7b5486d987a5ab5c3ebf4ea14941f45d4d4f ./perf: Ok ----- BTW, if you want to purge all the caches, remove ~/.debug/* . Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: Hemant Kumar <hemant@linux.vnet.ibm.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/20150227045026.1999.64084.stgit@localhost.localdomain [ s/dirname/dir_name/g to fix build on fedora14, where dirname is a global ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/Documentation/perf-buildid-cache.txt')
-rw-r--r--tools/perf/Documentation/perf-buildid-cache.txt13
1 files changed, 9 insertions, 4 deletions
diff --git a/tools/perf/Documentation/perf-buildid-cache.txt b/tools/perf/Documentation/perf-buildid-cache.txt
index cec6b57e8be6..dd07b55f58d8 100644
--- a/tools/perf/Documentation/perf-buildid-cache.txt
+++ b/tools/perf/Documentation/perf-buildid-cache.txt
@@ -12,9 +12,9 @@ SYNOPSIS
DESCRIPTION
-----------
-This command manages the build-id cache. It can add and remove files to/from
-the cache. In the future it should as well purge older entries, set upper
-limits for the space used by the cache, etc.
+This command manages the build-id cache. It can add, remove, update and purge
+files to/from the cache. In the future it should as well set upper limits for
+the space used by the cache, etc.
OPTIONS
-------
@@ -36,7 +36,12 @@ OPTIONS
actually made.
-r::
--remove=::
- Remove specified file from the cache.
+ Remove a cached binary which has same build-id of specified file
+ from the cache.
+-p::
+--purge=::
+ Purge all cached binaries including older caches which have specified
+ path from the cache.
-M::
--missing=::
List missing build ids in the cache for the specified file.