From: "Wangnan (F)" <wangnan0@huawei.com>
To: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: <ast@plumgrid.com>, <brendan.d.gregg@gmail.com>,
<a.p.zijlstra@chello.nl>, <daniel@iogearbox.net>,
<dsahern@gmail.com>, <hekuang@huawei.com>, <jolsa@kernel.org>,
<lizefan@huawei.com>, <masami.hiramatsu.pt@hitachi.com>,
<namhyung@kernel.org>, <paulus@samba.org>,
<linux-kernel@vger.kernel.org>, <pi3orama@163.com>,
<xiakaixu@huawei.com>
Subject: Re: [PATCH 10/31] perf test: Enforce LLVM test for BPF test
Date: Sat, 31 Oct 2015 13:31:39 +0800 [thread overview]
Message-ID: <5634523B.8060109@huawei.com> (raw)
In-Reply-To: <20151029223744.GK2923@kernel.org>
On 2015/10/30 6:37, Arnaldo Carvalho de Melo wrote:
> Em Wed, Oct 14, 2015 at 12:41:21PM +0000, Wang Nan escreveu:
>> This patch replaces the original toy BPF program with previous introduced
>> bpf-script-example.c. Dynamically embedded it into 'llvm-src.c'.
>>
>> The newly introduced BPF program attaches a BPF program at
>> 'sys_epoll_pwait()', and collect half samples from it. perf itself never
> "collect half samples from it"? Can you rephrase this?
I mean half of epoll_pwait syscall will be captured. This test
case totally issue 111 calls.
Thank you.
next prev parent reply other threads:[~2015-10-31 5:32 UTC|newest]
Thread overview: 92+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-10-14 12:41 [GIT PULL 00/31] perf tools: filtering events using eBPF programs Wang Nan
2015-10-14 12:41 ` [PATCH 01/31] perf tools: Make perf depend on libbpf Wang Nan
2015-10-29 12:21 ` [tip:perf/core] " tip-bot for Wang Nan
2015-10-14 12:41 ` [PATCH 02/31] perf ebpf: Add the libbpf glue Wang Nan
2015-10-29 12:21 ` [tip:perf/core] " tip-bot for Wang Nan
2015-10-14 12:41 ` [PATCH 03/31] perf tools: Enable passing bpf object file to --event Wang Nan
2015-10-20 15:12 ` Arnaldo Carvalho de Melo
2015-10-20 15:15 ` Arnaldo Carvalho de Melo
2015-10-20 15:42 ` Arnaldo Carvalho de Melo
2015-10-21 2:01 ` Wangnan (F)
2015-10-21 1:55 ` Wangnan (F)
2015-10-29 12:22 ` [tip:perf/core] " tip-bot for Wang Nan
2015-10-14 12:41 ` [PATCH 04/31] perf record, bpf: Create probe points for BPF programs Wang Nan
2015-10-20 19:12 ` Arnaldo Carvalho de Melo
2015-10-20 19:16 ` David Ahern
2015-10-20 19:21 ` Arnaldo Carvalho de Melo
2015-10-20 20:34 ` Arnaldo Carvalho de Melo
2015-10-21 2:27 ` Wangnan (F)
2015-10-21 3:31 ` Wangnan (F)
2015-10-21 13:28 ` Arnaldo Carvalho de Melo
2015-10-22 16:13 ` Arnaldo Carvalho de Melo
2015-10-29 12:22 ` [tip:perf/core] perf tools: " tip-bot for Wang Nan
2015-10-14 12:41 ` [PATCH 05/31] perf record: Load eBPF object into kernel Wang Nan
2015-10-23 16:58 ` Arnaldo Carvalho de Melo
2015-10-24 0:27 ` Arnaldo Carvalho de Melo
2015-10-26 7:18 ` Wangnan (F)
2015-10-24 1:18 ` pi3orama
2015-10-29 12:22 ` [tip:perf/core] perf tools: " tip-bot for Wang Nan
2015-10-14 12:41 ` [PATCH 06/31] perf tools: Collect perf_evsel in BPF object files Wang Nan
2015-10-29 12:23 ` [tip:perf/core] perf bpf: " tip-bot for Wang Nan
2015-10-14 12:41 ` [PATCH 07/31] perf tools: Attach eBPF program to perf event Wang Nan
2015-10-30 9:13 ` [tip:perf/core] perf bpf: Attach eBPF filter " tip-bot for Wang Nan
2015-10-14 12:41 ` [PATCH 08/31] perf record: Add clang options for compiling BPF scripts Wang Nan
2015-10-30 9:14 ` [tip:perf/core] " tip-bot for Wang Nan
2015-10-14 12:41 ` [PATCH 09/31] perf tools: Compile scriptlets to BPF objects when passing '.c' to --event Wang Nan
2015-10-14 15:45 ` Namhyung Kim
2015-10-15 2:10 ` Wangnan (F)
2015-10-29 16:25 ` Arnaldo Carvalho de Melo
2015-10-29 16:30 ` Arnaldo Carvalho de Melo
2015-10-29 22:52 ` Arnaldo Carvalho de Melo
2015-10-30 9:14 ` [tip:perf/core] " tip-bot for Wang Nan
2015-10-14 12:41 ` [PATCH 10/31] perf test: Enforce LLVM test for BPF test Wang Nan
2015-10-14 15:48 ` Namhyung Kim
2015-10-15 11:58 ` Wangnan (F)
2015-11-03 18:24 ` Arnaldo Carvalho de Melo
2015-11-04 1:41 ` Wangnan (F)
2015-10-29 22:37 ` Arnaldo Carvalho de Melo
2015-10-31 5:31 ` Wangnan (F) [this message]
2015-10-14 12:41 ` [PATCH 11/31] perf test: Add 'perf test BPF' Wang Nan
2015-10-14 12:41 ` [PATCH 12/31] perf probe: Reset args and nargs for probe_trace_event when failure Wang Nan
2015-10-29 22:39 ` Arnaldo Carvalho de Melo
2015-10-30 10:24 ` 平松雅巳 / HIRAMATU，MASAMI
2015-10-14 12:41 ` [PATCH 13/31] bpf tools: Load a program with different instances using preprocessor Wang Nan
2015-10-29 22:44 ` Arnaldo Carvalho de Melo
2015-10-31 10:40 ` Wangnan (F)
2015-10-14 12:41 ` [PATCH 14/31] perf tools: Add BPF_PROLOGUE config options for further patches Wang Nan
2015-10-29 22:45 ` Arnaldo Carvalho de Melo
2015-10-14 12:41 ` [PATCH 15/31] perf tools: Compile dwarf-regs.c if CONFIG_BPF_PROLOGUE is on Wang Nan
2015-10-14 12:41 ` [PATCH 16/31] perf tools: Add prologue for BPF programs for fetching arguments Wang Nan
2015-10-15 5:26 ` Namhyung Kim
2015-10-15 11:56 ` Wangnan (F)
2015-10-14 12:41 ` [PATCH 17/31] perf tools: Generate prologue for BPF programs Wang Nan
2015-10-14 12:41 ` [PATCH 18/31] perf tools: Use same BPF program if arguments are identical Wang Nan
2015-10-14 12:41 ` [PATCH 19/31] perf record: Support custom vmlinux path Wang Nan
2015-10-14 12:41 ` [PATCH 20/31] perf tools: Allow BPF program attach to uprobe events Wang Nan
2015-10-27 2:28 ` Wangnan (F)
2015-10-27 3:07 ` [PATCH] perf tools: Allow BPF program attach to modules Wang Nan
2015-10-14 12:41 ` [PATCH 21/31] perf test: Enforce LLVM test, add kbuild test Wang Nan
2015-10-19 14:42 ` Namhyung Kim
2015-10-19 14:53 ` Arnaldo Carvalho de Melo
2015-10-19 15:21 ` Namhyung Kim
2015-10-20 10:36 ` Wangnan (F)
2015-10-20 13:42 ` Arnaldo Carvalho de Melo
2015-10-20 12:06 ` Wangnan (F)
2015-10-20 13:41 ` Arnaldo Carvalho de Melo
2015-10-14 12:41 ` [PATCH 22/31] perf test: Test BPF prologue Wang Nan
2015-10-14 12:41 ` [PATCH 23/31] bpf tools: Add helper function for updating bpf maps elements Wang Nan
2015-10-14 12:41 ` [PATCH 24/31] bpf tools: Collect map definition in bpf_object Wang Nan
2015-10-14 12:41 ` [PATCH 25/31] bpf tools: Extract and collect map names from BPF object file Wang Nan
2015-10-14 12:41 ` [PATCH 26/31] perf tools: Support perf event alias name Wang Nan
2015-10-21 8:53 ` Namhyung Kim
2015-10-21 13:00 ` Wangnan (F)
2015-10-22 7:16 ` Namhyung Kim
2015-10-22 7:29 ` Wangnan (F)
2015-10-22 7:53 ` Namhyung Kim
2015-10-22 7:59 ` Wangnan (F)
2015-10-14 12:41 ` [PATCH 27/31] perf tools: Pass available CPU number to clang compiler Wang Nan
2015-10-14 12:41 ` [PATCH 28/31] perf tools: Add API to config maps in bpf object Wang Nan
2015-10-14 12:41 ` [PATCH 29/31] perf tools: Add API to apply config to BPF map Wang Nan
2015-10-14 12:41 ` [PATCH 30/31] perf record: Apply config to BPF objects before recording Wang Nan
2015-10-14 12:41 ` [PATCH 31/31] perf tools: Enable BPF object configure syntax Wang Nan
2015-10-14 15:44 ` [GIT PULL 00/31] perf tools: filtering events using eBPF programs Namhyung Kim
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