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| author |   Ingo Molnar <mingo@elte.hu> | 2010-03-12 10:20:57 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2010-03-12 10:20:59 +0100 |
| commit | 937779db13fb6cb621e28d9ae0a6cf1d05b57d05 (patch) | |
| tree | 6c27402677c347c4dc01980de78c270630588847 /tools/perf/builtin-record.c | |
| parent | perf record: Mention paranoid sysctl when failing to create counter (diff) | |
| parent | perf record: Don't try to find buildids in a zero sized file (diff) | |
| download | linux-dev-937779db13fb6cb621e28d9ae0a6cf1d05b57d05.tar.xz linux-dev-937779db13fb6cb621e28d9ae0a6cf1d05b57d05.zip | |
Merge branch 'perf/urgent' into perf/core
Merge reason: We want to queue up a dependent patch.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'tools/perf/builtin-record.c')
| -rw-r--r-- | tools/perf/builtin-record.c | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c index 6e4a39328b33..bed175d59e55 100644 --- a/tools/perf/builtin-record.c +++ b/tools/perf/builtin-record.c @@ -22,6 +22,7 @@ #include "util/debug.h" #include "util/session.h" #include "util/symbol.h" +#include "util/cpumap.h" #include <unistd.h> #include <sched.h> @@ -244,6 +245,9 @@ static void create_counter(int counter, int cpu, pid_t pid) attr->sample_type |= PERF_SAMPLE_IP | PERF_SAMPLE_TID; + if (nr_counters > 1) + attr->sample_type |= PERF_SAMPLE_ID; + if (freq) { attr->sample_type |= PERF_SAMPLE_PERIOD; attr->freq = 1; @@ -392,6 +396,9 @@ static int process_buildids(void) { u64 size = lseek(output, 0, SEEK_CUR); + if (size == 0) + return 0; + session->fd = output; return __perf_session__process_events(session, post_processing_offset, size - post_processing_offset, @@ -419,9 +426,6 @@ static int __cmd_record(int argc, const char **argv) char buf; page_size = sysconf(_SC_PAGE_SIZE); - nr_cpus = sysconf(_SC_NPROCESSORS_ONLN); - assert(nr_cpus <= MAX_NR_CPUS); - assert(nr_cpus >= 0); atexit(sig_atexit); signal(SIGCHLD, sig_handler); @@ -545,8 +549,9 @@ static int __cmd_record(int argc, const char **argv) if ((!system_wide && !inherit) || profile_cpu != -1) { open_counters(profile_cpu, target_pid); } else { + nr_cpus = read_cpu_map(); for (i = 0; i < nr_cpus; i++) - open_counters(i, target_pid); + open_counters(cpumap[i], target_pid); } if (file_new) { |