diff options
| author | Kan Liang <kan.liang@intel.com> | 2015-06-17 15:51:11 +0200 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2015-06-19 23:27:13 +0200 |
| commit | 9d9cad763ca79dd3697e9f2d1df648e37496582b (patch) | |
| tree | f59dd3c9d866c2fa8aa85b90c1eac83bf4f515a9 /tools/perf/builtin-kvm.c | |
| parent | perf tools: Add time out to force stop proc map processing (diff) | |
| download | linux-9d9cad763ca79dd3697e9f2d1df648e37496582b.tar.xz linux-9d9cad763ca79dd3697e9f2d1df648e37496582b.zip | |
perf tools: Configurable per thread proc map processing time out
The time out to limit the individual proc map processing was hard code
to 500ms. This patch introduce a new option --proc-map-timeout to make
the time limit configurable.
Signed-off-by: Kan Liang <kan.liang@intel.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Ying Huang <ying.huang@intel.com>
Link: http://lkml.kernel.org/r/1434549071-25611-2-git-send-email-kan.liang@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/builtin-kvm.c')
| -rw-r--r-- | tools/perf/builtin-kvm.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/tools/perf/builtin-kvm.c b/tools/perf/builtin-kvm.c index 15fecd3dc5d8..74878cd75078 100644 --- a/tools/perf/builtin-kvm.c +++ b/tools/perf/builtin-kvm.c @@ -1311,6 +1311,8 @@ static int kvm_events_live(struct perf_kvm_stat *kvm, "show events other than" " HLT (x86 only) or Wait state (s390 only)" " that take longer than duration usecs"), + OPT_UINTEGER(0, "proc-map-timeout", &kvm->opts.proc_map_timeout, + "per thread proc mmap processing timeout in ms"), OPT_END() }; const char * const live_usage[] = { @@ -1338,6 +1340,7 @@ static int kvm_events_live(struct perf_kvm_stat *kvm, kvm->opts.target.uses_mmap = false; kvm->opts.target.uid_str = NULL; kvm->opts.target.uid = UINT_MAX; + kvm->opts.proc_map_timeout = 500; symbol__init(NULL); disable_buildid_cache(); @@ -1393,7 +1396,7 @@ static int kvm_events_live(struct perf_kvm_stat *kvm, perf_session__set_id_hdr_size(kvm->session); ordered_events__set_copy_on_queue(&kvm->session->ordered_events, true); machine__synthesize_threads(&kvm->session->machines.host, &kvm->opts.target, - kvm->evlist->threads, false); + kvm->evlist->threads, false, kvm->opts.proc_map_timeout); err = kvm_live_open_events(kvm); if (err) goto out; |