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| author | Peter Zijlstra <a.p.zijlstra@chello.nl> | 2009-06-25 11:27:12 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-06-25 21:39:08 +0200 |
| commit | e6e18ec79b023d5fe84226cef533cf0e3770ce93 (patch) | |
| tree | 6fc1bd9afd21454864abe2aec6a0e35e17d47f04 /tools/perf/builtin-top.c | |
| parent | bfbd3381e63aa2a14c6706afb50ce4630aa0d9a2 (diff) | |
| download | lwn-e6e18ec79b023d5fe84226cef533cf0e3770ce93.tar.gz lwn-e6e18ec79b023d5fe84226cef533cf0e3770ce93.zip | |
perf_counter: Rework the sample ABI
The PERF_EVENT_READ implementation made me realize we don't
actually need the sample_type int the output sample, since
we already have that in the perf_counter_attr information.
Therefore, remove the PERF_EVENT_MISC_OVERFLOW bit and the
event->type overloading, and imply put counter overflow
samples in a PERF_EVENT_SAMPLE type.
This also fixes the issue that event->type was only 32-bit
and sample_type had 64 usable bits.
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'tools/perf/builtin-top.c')
| -rw-r--r-- | tools/perf/builtin-top.c | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c index 5352b5e352ed..cf0d21f1ae10 100644 --- a/tools/perf/builtin-top.c +++ b/tools/perf/builtin-top.c @@ -392,11 +392,11 @@ static void record_ip(u64 ip, int counter) samples--; } -static void process_event(u64 ip, int counter) +static void process_event(u64 ip, int counter, int user) { samples++; - if (ip < min_ip || ip > max_ip) { + if (user) { userspace_samples++; return; } @@ -509,9 +509,10 @@ static void mmap_read_counter(struct mmap_data *md) old += size; - if (event->header.misc & PERF_EVENT_MISC_OVERFLOW) { - if (event->header.type & PERF_SAMPLE_IP) - process_event(event->ip.ip, md->counter); + if (event->header.type == PERF_EVENT_SAMPLE) { + int user = + (event->header.misc & PERF_EVENT_MISC_CPUMODE_MASK) == PERF_EVENT_MISC_USER; + process_event(event->ip.ip, md->counter, user); } } |