From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S935172AbeBMMSQ (ORCPT ); Tue, 13 Feb 2018 07:18:16 -0500 Received: from terminus.zytor.com ([198.137.202.136]:41613 "EHLO terminus.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S934947AbeBMMSO (ORCPT ); Tue, 13 Feb 2018 07:18:14 -0500 Date: Tue, 13 Feb 2018 04:07:52 -0800 From: tip-bot for Kan Liang Message-ID: Cc: kan.liang@intel.com, peterz@infradead.org, tglx@linutronix.de, jolsa@kernel.org, ak@linux.intel.com, yao.jin@linux.intel.com, mingo@kernel.org, wangnan0@huawei.com, linux-kernel@vger.kernel.org, namhyung@kernel.org, hpa@zytor.com, acme@redhat.com Reply-To: linux-kernel@vger.kernel.org, wangnan0@huawei.com, namhyung@kernel.org, hpa@zytor.com, acme@redhat.com, peterz@infradead.org, jolsa@kernel.org, tglx@linutronix.de, kan.liang@intel.com, yao.jin@linux.intel.com, ak@linux.intel.com, mingo@kernel.org In-Reply-To: <1516310792-208685-10-git-send-email-kan.liang@intel.com> References: <1516310792-208685-10-git-send-email-kan.liang@intel.com> To: linux-tip-commits@vger.kernel.org Subject: [tip:perf/urgent] perf test: Update mmap read functions for backward-ring-buffer test Git-Commit-ID: fe00d73152ed18080ea895bc84c495d3bca71019 X-Mailer: tip-git-log-daemon Robot-ID: Robot-Unsubscribe: Contact to get blacklisted from these emails MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset=UTF-8 Content-Disposition: inline Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Commit-ID: fe00d73152ed18080ea895bc84c495d3bca71019 Gitweb: https://git.kernel.org/tip/fe00d73152ed18080ea895bc84c495d3bca71019 Author: Kan Liang AuthorDate: Thu, 18 Jan 2018 13:26:24 -0800 Committer: Arnaldo Carvalho de Melo CommitDate: Tue, 6 Feb 2018 10:11:50 -0300 perf test: Update mmap read functions for backward-ring-buffer test Use the new perf_mmap__read_* interfaces for overwrite ringbuffer test. Commiter notes: Testing: [root@seventh ~]# perf test -v backward 48: Read backward ring buffer : --- start --- test child forked, pid 8309 Using CPUID GenuineIntel-6-9E mmap size 1052672B mmap size 8192B Finished reading overwrite ring buffer: rewind test child finished with 0 ---- end ---- Read backward ring buffer: Ok [root@seventh ~]# Signed-off-by: Kan Liang Acked-by: Jiri Olsa Tested-by: Arnaldo Carvalho de Melo Cc: Andi Kleen Cc: Jin Yao Cc: Namhyung Kim Cc: Peter Zijlstra Cc: Wang Nan Link: http://lkml.kernel.org/r/1516310792-208685-10-git-send-email-kan.liang@intel.com Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/tests/backward-ring-buffer.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/tools/perf/tests/backward-ring-buffer.c b/tools/perf/tests/backward-ring-buffer.c index 4035d43..e0b1b41 100644 --- a/tools/perf/tests/backward-ring-buffer.c +++ b/tools/perf/tests/backward-ring-buffer.c @@ -31,10 +31,12 @@ static int count_samples(struct perf_evlist *evlist, int *sample_count, int i; for (i = 0; i < evlist->nr_mmaps; i++) { + struct perf_mmap *map = &evlist->overwrite_mmap[i]; union perf_event *event; + u64 start, end; - perf_mmap__read_catchup(&evlist->overwrite_mmap[i]); - while ((event = perf_mmap__read_backward(&evlist->overwrite_mmap[i])) != NULL) { + perf_mmap__read_init(map, true, &start, &end); + while ((event = perf_mmap__read_event(map, true, &start, end)) != NULL) { const u32 type = event->header.type; switch (type) { @@ -49,6 +51,7 @@ static int count_samples(struct perf_evlist *evlist, int *sample_count, return TEST_FAIL; } } + perf_mmap__read_done(map); } return TEST_OK; }