linux-kernel - Re: [linus:master] [filemap] c8be038067: vm-scalability.throughput -27.3% regression

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Message-ID: <133dee64-848b-4212-9432-8760b057fe0a@intel.com>
Date:   Tue, 21 Nov 2023 10:34:11 +0800
From:   Yin Fengwei <fengwei.yin@...el.com>
To:     kernel test robot <oliver.sang@...el.com>
CC:     <oe-lkp@...ts.linux.dev>, <lkp@...el.com>,
        <linux-kernel@...r.kernel.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Feng Tang <feng.tang@...el.com>,
        Huang Ying <ying.huang@...el.com>,
        Matthew Wilcox <willy@...radead.org>,
        <linux-fsdevel@...r.kernel.org>
Subject: Re: [linus:master] [filemap] c8be038067: vm-scalability.throughput
 -27.3% regression



On 11/20/23 21:48, kernel test robot wrote:
> 
> hi, Fengwei,
> 
> we noticed c8be038067 is the fix commit for
> de74976eb65151a2f568e477fc2e0032df5b22b4 ("filemap: add filemap_map_folio_range()")
> 
> and we captured numbers of improvement for this commit
> (refer to below
> "In addition to that, the commit also has significant impact on the following tests"
> part which includes several examples)
> 
> however, recently, we found a regression as title mentioned.

Thanks for the testing. I will take a look at this regression.


Regards
Yin, Fengwei