linux-kernel - Re: [ata] 0568e61225: stress-ng.copy-file.ops_per

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <Yv8sg3J8PLD56osY@xsang-OptiPlex-9020>
Date:   Fri, 19 Aug 2022 14:24:03 +0800
From:   Oliver Sang <oliver.sang@...el.com>
To:     John Garry <john.garry@...wei.com>
CC:     Damien Le Moal <damien.lemoal@...nsource.wdc.com>,
        Christoph Hellwig <hch@....de>,
        "Martin K. Petersen" <martin.petersen@...cle.com>,
        LKML <linux-kernel@...r.kernel.org>,
        Linux Memory Management List <linux-mm@...ck.org>,
        <linux-ide@...r.kernel.org>, <lkp@...ts.01.org>, <lkp@...el.com>,
        <ying.huang@...el.com>, <feng.tang@...el.com>,
        <zhengjun.xing@...ux.intel.com>, <fengwei.yin@...el.com>
Subject: Re: [ata] 0568e61225: stress-ng.copy-file.ops_per_sec -15.0%
 regression

On Thu, Aug 18, 2022 at 10:28:30AM +0100, John Garry wrote:
> On 18/08/2022 03:06, Oliver Sang wrote:
> 
> Hi Oliver,
> 
> > > > did I do the right thing?
> > > Sorry but I was not really interested in 4cbfca5f77 and I see where that
> > > build error is coming, but don't be concerned with it. However, for
> > > avoidance of doubt, if you have results for vanilla v6.0-rc1 then that would
> > > be appreciated.
> > for v6.0-rc1, it's still 512/512
> > 
> > > I will also send a separate patch for testing if you don't mind.
> > sure! we are very glad that we could help.
> 
> As you probably saw, I sent "[RFT PATCH] ata: libata: Set __ATA_BASE_SHT
> max_sectors" for testing on top of v6.0-rc1, and I hope that then we can get
> same performance as v5.19

yeah, our test confirmed your expectation:

stress-ng.copy-file.ops_per_sec
v5.19                 - 26.85
v6.0-rc1              - 23.03
v6.0-rc1 + your patch - 26.94

> 
> Thanks,
> John