From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757515AbcHCCuA (ORCPT ); Tue, 2 Aug 2016 22:50:00 -0400 Received: from mail-qk0-f182.google.com ([209.85.220.182]:33442 "EHLO mail-qk0-f182.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757172AbcHCCto (ORCPT ); Tue, 2 Aug 2016 22:49:44 -0400 From: Brendan Gregg To: Peter Zijlstra , Ingo Molnar , Arnaldo Carvalho de Melo , Alexander Shishkin Cc: linux-kernel@vger.kernel.org, Alexei Starovoitov , Wang Nan , Brendan Gregg Subject: [PATCH v2 0/3] Add a tracepoint for BPF perf sampling Date: Wed, 3 Aug 2016 02:47:46 +0000 Message-Id: <1470192469-11910-1-git-send-email-bgregg@netflix.com> X-Mailer: git-send-email 2.7.4 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This patchset adds a tracepoint for perf sampling, perf:perf_hrtimer, and includes a complete example in samples/bpf for using it to frequency count sampled instruction pointers in a BPF map. Signed-off-by: Brendan Gregg --- Changes in v2: - added samples/bpf/sampleip* example for perf:perf_hrtimer - added bpf-output to perf script usage message Brendan Gregg (3): perf/core: Add a tracepoint for perf sampling samples/bpf: Add a sampling BPF example perf script: add bpf-output field to usage message include/trace/events/perf.h | 29 +++++ kernel/events/core.c | 5 + samples/bpf/Makefile | 4 + samples/bpf/sampleip_kern.c | 48 ++++++++ samples/bpf/sampleip_user.c | 189 +++++++++++++++++++++++++++++++ tools/perf/Documentation/perf-script.txt | 4 +- tools/perf/builtin-script.c | 2 +- 7 files changed, 278 insertions(+), 3 deletions(-) create mode 100644 include/trace/events/perf.h create mode 100644 samples/bpf/sampleip_kern.c create mode 100644 samples/bpf/sampleip_user.c -- 2.7.4