Re: [FFmpeg-devel] [PATCH v2 3/4] tests/checkasm: Fix build error when enable linux perf on Android

[Zhao Zhili <quinkblack@foxmail.com>]

> On Jun 7, 2024, at 16:38, Martin Storsjö <martin@martin.st> wrote:
> 
> On Fri, 7 Jun 2024, Martin Storsjö wrote:
> 
>> On Fri, 7 Jun 2024, Zhao Zhili wrote:
>> 
>>> From: Zhao Zhili <zhilizhao@tencent.com>
>>> B0 is defined by system header.
>> 
>> Can you add more details about which header defines this? (I did a quick grep in a copy of the android NDK, and found it in asm-generic/termbits-common.h.)
> 
> Btw, in addition to this, is perf actually usable for doing benchmarking with checkasm on android, or is this just to avoid build errors?

There is a builtin cmd simpleperf on Android, the source code is at [1], which is a simplified version of
perf on Linux.

I have tested checkasm with linux perf on Android, the result seems reliable. I’m not sure whether there is
any difference between perf on Android and on normal linux.

https://android.googlesource.com/platform/system/extras/+/refs/heads/main/simpleperf/main.cpp#29

> 
> // Martin
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