From mboxrd@z Thu Jan 1 00:00:00 1970 From: Arnaldo Carvalho de Melo Subject: [PATCH 38/54] perf intel-pt: Adjust overlap-checking to support sampling mode Date: Thu, 8 Mar 2018 16:50:13 -0300 Message-ID: <20180308195029.14991-39-acme@kernel.org> References: <20180308195029.14991-1-acme@kernel.org> Return-path: In-Reply-To: <20180308195029.14991-1-acme@kernel.org> Sender: linux-kernel-owner@vger.kernel.org To: Ingo Molnar Cc: linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org, Adrian Hunter , Jiri Olsa , Arnaldo Carvalho de Melo List-Id: linux-perf-users.vger.kernel.org From: Adrian Hunter Adjust overlap-checking to support sampling mode. Signed-off-by: Adrian Hunter Cc: Jiri Olsa Link: http://lkml.kernel.org/r/1520431349-30689-10-git-send-email-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/intel-pt.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/tools/perf/util/intel-pt.c b/tools/perf/util/intel-pt.c index 5c5c155fba78..0effaff57020 100644 --- a/tools/perf/util/intel-pt.c +++ b/tools/perf/util/intel-pt.c @@ -230,6 +230,7 @@ static int intel_pt_get_trace(struct intel_pt_buffer *b, void *data) struct auxtrace_buffer *buffer = ptq->buffer; struct auxtrace_buffer *old_buffer = ptq->old_buffer; struct auxtrace_queue *queue; + bool might_overlap; if (ptq->stop) { b->len = 0; @@ -256,7 +257,8 @@ static int intel_pt_get_trace(struct intel_pt_buffer *b, void *data) return -ENOMEM; } - if (ptq->pt->snapshot_mode && !buffer->consecutive && old_buffer && + might_overlap = ptq->pt->snapshot_mode || ptq->pt->sampling_mode; + if (might_overlap && !buffer->consecutive && old_buffer && intel_pt_do_fix_overlap(ptq->pt, old_buffer, buffer)) return -ENOMEM; @@ -269,8 +271,7 @@ static int intel_pt_get_trace(struct intel_pt_buffer *b, void *data) } b->ref_timestamp = buffer->reference; - if (!old_buffer || ptq->pt->sampling_mode || (ptq->pt->snapshot_mode && - !buffer->consecutive)) { + if (!old_buffer || (might_overlap && !buffer->consecutive)) { b->consecutive = false; b->trace_nr = buffer->buffer_nr + 1; } else { -- 2.14.3