Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932997Ab2KERZf (ORCPT ); Mon, 5 Nov 2012 12:25:35 -0500 Received: from casper.infradead.org ([85.118.1.10]:33360 "EHLO casper.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932872Ab2KERSj (ORCPT ); Mon, 5 Nov 2012 12:18:39 -0500 From: Arnaldo Carvalho de Melo To: Ingo Molnar Cc: linux-kernel@vger.kernel.org, Jiri Olsa , Corey Ashford , Frederic Weisbecker , Ingo Molnar , Paul Mackerras , Peter Zijlstra , Arnaldo Carvalho de Melo Subject: [PATCH 25/32] perf tests: Add documentation for attr tests Date: Mon, 5 Nov 2012 14:18:06 -0300 Message-Id: <1352135893-7564-26-git-send-email-acme@infradead.org> X-Mailer: git-send-email 1.7.9.2.358.g22243 In-Reply-To: <1352135893-7564-1-git-send-email-acme@infradead.org> References: <1352135893-7564-1-git-send-email-acme@infradead.org> Content-Type: text/plain; charset="utf-8" X-SRS-Rewrite: SMTP reverse-path rewritten from by casper.infradead.org See http://www.infradead.org/rpr.html Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 4588 Lines: 95 From: Jiri Olsa Adding documentation for attr tests. Signed-off-by: Jiri Olsa Cc: Corey Ashford Cc: Frederic Weisbecker Cc: Ingo Molnar Cc: Paul Mackerras Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/1351634526-1516-26-git-send-email-jolsa@redhat.com Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/tests/attr/README | 64 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 64 insertions(+) create mode 100644 tools/perf/tests/attr/README diff --git a/tools/perf/tests/attr/README b/tools/perf/tests/attr/README new file mode 100644 index 0000000..d102957 --- /dev/null +++ b/tools/perf/tests/attr/README @@ -0,0 +1,64 @@ +The struct perf_event_attr test (attr tests) support +==================================================== +This testing support is embedded into perf directly and is governed +by the PERF_TEST_ATTR environment variable and hook inside the +sys_perf_event_open function. + +The general idea is to store 'struct perf_event_attr' details for +each event created within single perf command. Each event details +are stored into separate text file. Once perf command is finished +these files are checked for values we expect for command. + +The attr tests consist of following parts: + +tests/attr.c +------------ +This is the sys_perf_event_open hook implementation. The hook +is triggered when the PERF_TEST_ATTR environment variable is +defined. It must contain name of existing directory with access +and write permissions. + +For each sys_perf_event_open call event details are stored in +separate file. Besides 'struct perf_event_attr' values we also +store 'fd' and 'group_fd' values to allow checking for groups. + +tests/attr.py +------------- +This is the python script that does all the hard work. It reads +the test definition, executes it and checks results. + +tests/attr/ +----------- +Directory containing all attr test definitions. +Following tests are defined (with perf commands): + + perf record kill (test-record-basic) + perf record -b kill (test-record-branch-any) + perf record -j any kill (test-record-branch-filter-any) + perf record -j any_call kill (test-record-branch-filter-any_call) + perf record -j any_ret kill (test-record-branch-filter-any_ret) + perf record -j hv kill (test-record-branch-filter-hv) + perf record -j ind_call kill (test-record-branch-filter-ind_call) + perf record -j k kill (test-record-branch-filter-k) + perf record -j u kill (test-record-branch-filter-u) + perf record -c 123 kill (test-record-count) + perf record -d kill (test-record-data) + perf record -F 100 kill (test-record-freq) + perf record -g -- kill (test-record-graph-default) + perf record -g dwarf -- kill (test-record-graph-dwarf) + perf record -g fp kill (test-record-graph-fp) + perf record --group -e cycles,instructions kill (test-record-group) + perf record -e '{cycles,instructions}' kill (test-record-group1) + perf record -D kill (test-record-no-delay) + perf record -i kill (test-record-no-inherit) + perf record -n kill (test-record-no-samples) + perf record -c 100 -P kill (test-record-period) + perf record -R kill (test-record-raw) + perf stat -e cycles kill (test-stat-basic) + perf stat kill (test-stat-default) + perf stat -d kill (test-stat-detailed-1) + perf stat -dd kill (test-stat-detailed-2) + perf stat -ddd kill (test-stat-detailed-3) + perf stat --group -e cycles,instructions kill (test-stat-group) + perf stat -e '{cycles,instructions}' kill (test-stat-group1) + perf stat -i -e cycles kill (test-stat-no-inherit) -- 1.7.9.2.358.g22243 -- 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/