From: Peter Zijlstra <peterz@infradead.org>
To: "Wangnan (F)" <wangnan0@huawei.com>
Cc: He Kuang <hekuang@huawei.com>,
ast@plumgrid.com, rostedt@goodmis.org,
masami.hiramatsu.pt@hitachi.com, mingo@redhat.com,
acme@redhat.com, jolsa@kernel.org, namhyung@kernel.org,
linux-kernel@vger.kernel.org, pi3orama <pi3orama@163.com>
Subject: Re: [RFC PATCH 0/5] Make eBPF programs output data to perf event
Date: Wed, 1 Jul 2015 13:58:25 +0200 [thread overview]
Message-ID: <20150701115825.GV19282@twins.programming.kicks-ass.net> (raw)
In-Reply-To: <559386D7.1020208@huawei.com>
On Wed, Jul 01, 2015 at 02:21:11PM +0800, Wangnan (F) wrote:
>
>
> On 2015/7/1 13:44, Peter Zijlstra wrote:
> >On Wed, Jul 01, 2015 at 02:57:30AM +0000, He Kuang wrote:
> >>This patch adds an extra perf trace buffer for other utilities like
> >>bpf to fill extra data to perf events.
> >What!, why?
>
> The goal of this patchset is to give BPF program a mean to output something
> through
> perf samples.
But why create a separate trace buffer, it should go into the regular
perf buffer.
Your email is unreadably wordwrapped. Please fix your MUA.
next prev parent reply other threads:[~2015-07-01 11:58 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-07-01 2:57 He Kuang
2015-07-01 2:57 ` [RFC PATCH 1/5] bpf: Put perf_events check ahead of bpf prog He Kuang
2015-07-02 3:50 ` Alexei Starovoitov
2015-07-02 5:52 ` Wangnan (F)
2015-07-02 18:02 ` Alexei Starovoitov
2015-07-01 2:57 ` [RFC PATCH 2/5] perf/trace: Add perf extra percpu trace buffer He Kuang
2015-07-01 2:57 ` [RFC PATCH 3/5] tracing/kprobe: Separate inc recursion count out of perf_trace_buf_prepare He Kuang
2015-07-01 2:57 ` [RFC PATCH 4/5] bpf: Introduce function for outputing sample data to perf event He Kuang
2015-07-01 2:57 ` [RFC PATCH 5/5] tracing/kprobe: Combine extra trace buf into perf trace buf He Kuang
2015-07-01 5:44 ` [RFC PATCH 0/5] Make eBPF programs output data to perf event Peter Zijlstra
2015-07-01 6:21 ` Wangnan (F)
2015-07-01 11:58 ` Peter Zijlstra [this message]
2015-07-02 2:48 ` Alexei Starovoitov
2015-07-02 3:38 ` He Kuang
2015-07-02 3:52 ` Alexei Starovoitov
2015-07-02 9:24 ` Wangnan (F)
2015-07-02 18:37 ` Alexei Starovoitov
2015-07-02 9:31 ` Peter Zijlstra
2015-07-02 13:50 ` [RFC PATCH v2 0/4] " He Kuang
2015-07-02 13:50 ` [RFC PATCH v2 1/4] bpf: Put perf_events check ahead of bpf prog He Kuang
2015-07-02 18:41 ` Alexei Starovoitov
2015-07-02 13:50 ` [RFC PATCH v2 2/4] tracing/kprobe: Separate inc recursion count out of perf_trace_buf_prepare He Kuang
2015-07-02 13:50 ` [RFC PATCH v2 3/4] bpf: Introduce function for outputing data to perf event He Kuang
2015-07-02 13:50 ` [RFC PATCH v2 4/4] tracing/kprobe: Combine bpf output and perf event output He Kuang
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