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authorPeter Zijlstra <a.p.zijlstra@chello.nl>2009-06-25 11:27:12 +0200
committerIngo Molnar <mingo@elte.hu>2009-06-25 21:39:08 +0200
commite6e18ec79b023d5fe84226cef533cf0e3770ce93 (patch)
tree6fc1bd9afd21454864abe2aec6a0e35e17d47f04 /tools/perf/builtin-top.c
parentbfbd3381e63aa2a14c6706afb50ce4630aa0d9a2 (diff)
downloadop-kernel-dev-e6e18ec79b023d5fe84226cef533cf0e3770ce93.zip
op-kernel-dev-e6e18ec79b023d5fe84226cef533cf0e3770ce93.tar.gz
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.c11
1 files changed, 6 insertions, 5 deletions
diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c
index 5352b5e..cf0d21f 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);
}
}
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