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| author | Stephane Eranian <eranian@google.com> | 2010-06-01 23:25:01 +0400 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2010-06-05 16:34:04 +0400 |
| commit | 45de34bbe3e1b8f4c8bc8ecaf6c915b4b4c545f8 (patch) | |
| tree | b141c0c68d668db2f718cdb6c6f1adcb351776c0 /tools/perf/util/header.c | |
| parent | 8e5564e6c7554902301543e731354ad2ad58ae53 (diff) | |
| download | linux-45de34bbe3e1b8f4c8bc8ecaf6c915b4b4c545f8.tar.xz | |
perf buildid: add perfconfig option to specify buildid cache dir
This patch adds the ability to specify an alternate directory to store the
buildid cache (buildids, copy of binaries). By default, it is hardcoded to
$HOME/.debug. This directory contains immutable data. The layout of the
directory is such that no conflicts in filenames are possible. A modification
in a file, yields a different buildid and thus a different location in the
subdir hierarchy.
You may want to put the buildid cache elsewhere because of disk space
limitation or simply to share the cache between users. It is also useful for
remote collect vs. local analysis of profiles.
This patch adds a new config option to the perfconfig file. Under the tag
'buildid', there is a dir option. For instance, if you have:
$ cat /etc/perfconfig
[buildid]
dir = /var/cache/perf-buildid
All buildids and binaries are be saved in the directory specified. The perf
record, buildid-list, buildid-cache, report, annotate, and archive commands
will it to pull information out.
The option can be set in the system-wide perfconfig file or in the
$HOME/.perfconfig file.
Cc: David S. Miller <davem@davemloft.net>
Cc: Frédéric Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Tom Zanussi <tzanussi@gmail.com>
LKML-Reference: <4c055fb7.df0ce30a.5f0d.ffffae52@mx.google.com>
Signed-off-by: Stephane Eranian <eranian@google.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/header.c')
| -rw-r--r-- | tools/perf/util/header.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c index 1f62435f96c2..4a6a4b3a4ab7 100644 --- a/tools/perf/util/header.c +++ b/tools/perf/util/header.c @@ -385,8 +385,7 @@ static int perf_session__cache_build_ids(struct perf_session *self) int ret; char debugdir[PATH_MAX]; - snprintf(debugdir, sizeof(debugdir), "%s/%s", getenv("HOME"), - DEBUG_CACHE_DIR); + snprintf(debugdir, sizeof(debugdir), "%s", buildid_dir); if (mkdir(debugdir, 0755) != 0 && errno != EEXIST) return -1; |