linux-kernel - Re: [PATCH 12/13] perf test: Test BPF prologue

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Message-ID: <564AE778.2080408@huawei.com>
Date:	Tue, 17 Nov 2015 16:38:16 +0800
From:	"Wangnan (F)" <wangnan0@...wei.com>
To:	Arnaldo Carvalho de Melo <acme@...nel.org>
CC:	Masami Hiramatsu <masami.hiramatsu.pt@...achi.com>,
	Alexei Starovoitov <ast@...nel.org>, <lizefan@...wei.com>,
	Ingo Molnar <mingo@...nel.org>, Jiri Olsa <jolsa@...nel.org>,
	David Ahern <dsahern@...il.com>,
	Namhyung Kim <namhyung@...nel.org>,
	Adrian Hunter <adrian.hunter@...el.com>, <pi3orama@....com>,
	<linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 12/13] perf test: Test BPF prologue

Hi Arnaldo,

On 2015/11/17 9:29, Arnaldo Carvalho de Melo wrote:

[SNIP]
> I've pushed everything to my perf/ebpf branch, please let me know if
> what is there is acceptable, then it will be up to Ingo to decide where
> to put this, if in perf/urgent for this merge window, or in perf/core,
> for the next one.

I have checked and tested your changes in your perf/ebpf and they
are okay to me.

>
> Ah, to extract the output for these BPF sub-tests I had to use -v, i.e.
> just:
>
>    # perf test BPF
>    37: Test BPF filter                                          : Ok
>    #
>
> Ditto for the LLVM one.
>
> Doesn't tell us too much about all those nice sub-tests...
>
> How about:
>
>    # perf test -v BPF
>    37: Test BPF filter:
>    37.1: test a						       : Ok
>    37.2: test b						       : Ok
>    37.3: Test BPF prologue generation			       : Ok
>    37.4: Another...                                             : Ok
>    37: Test BPF filter					       : Ok
>    #

I have sent a cset based on perf/ebpf in [1]. With the last 3 patch
you will see 'perf test' output information in this way. Please have a try:

# ./perf test LLVM BPF
35: Test LLVM searching and compiling                        :
35.1: Basic BPF llvm compiling test                          : Ok
35.2: Test kbuild searching                                  : Ok
35.3: Compile source for BPF prologue generation test        : Ok
37: Test BPF filter                                          :
37.1: Test basic BPF filtering                               : Ok
37.2: Test BPF prologue generation                           : Ok

Thank you.

[1] 
http://lkml.kernel.org/g/1447749170-175898-1-git-send-email-wangnan0@huawei.com

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