Move PERF_RECORD_TIME so that all the fixed length items vome before the variable length ones. Signed-off-by: Peter Zijlstra --- include/linux/perf_counter.h | 9 ++++----- kernel/perf_counter.c | 26 +++++++++++++------------- 2 files changed, 17 insertions(+), 18 deletions(-) Index: linux-2.6/include/linux/perf_counter.h =================================================================== --- linux-2.6.orig/include/linux/perf_counter.h +++ linux-2.6/include/linux/perf_counter.h @@ -100,9 +100,9 @@ enum sw_event_ids { enum perf_counter_record_format { PERF_RECORD_IP = 1U << 0, PERF_RECORD_TID = 1U << 1, - PERF_RECORD_GROUP = 1U << 2, - PERF_RECORD_CALLCHAIN = 1U << 3, - PERF_RECORD_TIME = 1U << 4, + PERF_RECORD_TIME = 1U << 2, + PERF_RECORD_GROUP = 1U << 3, + PERF_RECORD_CALLCHAIN = 1U << 4, }; /* @@ -250,6 +250,7 @@ enum perf_event_type { * * { u64 ip; } && PERF_RECORD_IP * { u32 pid, tid; } && PERF_RECORD_TID + * { u64 time; } && PERF_RECORD_TIME * * { u64 nr; * { u64 event, val; } cnt[nr]; } && PERF_RECORD_GROUP @@ -259,8 +260,6 @@ enum perf_event_type { * kernel, * user; * u64 ips[nr]; } && PERF_RECORD_CALLCHAIN - * - * { u64 time; } && PERF_RECORD_TIME * }; */ }; Index: linux-2.6/kernel/perf_counter.c =================================================================== --- linux-2.6.orig/kernel/perf_counter.c +++ linux-2.6/kernel/perf_counter.c @@ -1850,6 +1850,16 @@ static void perf_counter_output(struct p header.size += sizeof(tid_entry); } + if (record_type & PERF_RECORD_TIME) { + /* + * Maybe do better on x86 and provide cpu_clock_nmi() + */ + time = sched_clock(); + + header.type |= PERF_RECORD_TIME; + header.size += sizeof(u64); + } + if (record_type & PERF_RECORD_GROUP) { header.type |= PERF_RECORD_GROUP; header.size += sizeof(u64) + @@ -1867,16 +1877,6 @@ static void perf_counter_output(struct p } } - if (record_type & PERF_RECORD_TIME) { - /* - * Maybe do better on x86 and provide cpu_clock_nmi() - */ - time = sched_clock(); - - header.type |= PERF_RECORD_TIME; - header.size += sizeof(u64); - } - ret = perf_output_begin(&handle, counter, header.size, nmi, 1); if (ret) return; @@ -1889,6 +1889,9 @@ static void perf_counter_output(struct p if (record_type & PERF_RECORD_TID) perf_output_put(&handle, tid_entry); + if (record_type & PERF_RECORD_TIME) + perf_output_put(&handle, time); + if (record_type & PERF_RECORD_GROUP) { struct perf_counter *leader, *sub; u64 nr = counter->nr_siblings; @@ -1910,9 +1913,6 @@ static void perf_counter_output(struct p if (callchain) perf_output_copy(&handle, callchain, callchain_size); - if (record_type & PERF_RECORD_TIME) - perf_output_put(&handle, time); - perf_output_end(&handle); } -- -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/