Re: mmc: block: bonnie++ runs with errors on arc/hsdk board

From: Evgeniy Didin <Evgeniy.Didin@synopsys.com>
To: "adrian.hunter@intel.com" <adrian.hunter@intel.com>
Cc: "ulf.hansson@linaro.org" <ulf.hansson@linaro.org>,
	"linux-ext4@vger.kernel.org" <linux-ext4@vger.kernel.org>,
	"tytso@mit.edu" <tytso@mit.edu>,
	"linus.walleij@linaro.org" <linus.walleij@linaro.org>,
	"Alexey.Brodkin@synopsys.com" <Alexey.Brodkin@synopsys.com>,
	"linux-mmc@vger.kernel.org" <linux-mmc@vger.kernel.org>,
	"jh80.chung@samsung.com" <jh80.chung@samsung.com>,
	"adilger.kernel@dilger.ca" <adilger.kernel@dilger.ca>,
	"linux-snps-arc@lists.infradead.org"
	<linux-snps-arc@lists.infradead.org>,
	"Eugeniy.Paltsev@synopsys.com" <Eugeniy.Paltsev@synopsys.com>
Subject: Re: mmc: block: bonnie++ runs with errors on arc/hsdk board
Date: Wed, 14 Mar 2018 12:32:50 +0000	[thread overview]
Message-ID: <1521030769.10285.16.camel@synopsys.com> (raw)
In-Reply-To: <1520956602.10285.10.camel@synopsys.com>

Hi Adrian,
> > 
> > Was the performance affected? i.e. the results from bonnie++
> 
> I have run bonnie++ several times before and after mentioned commit. Here is output:
> --------------------------------------------------<8-------------------------------------------------------------------------
> Before commit:
> ARCLinux,512M,6442,50,7211,0,5333,0,12954,99,345638,100,+++++,+++,16,22322,100,+++++,+++,32735,99,22921,100,+++++,+++,32211,100
> ARCLinux,512M,6611,51,7248,0,5162,0,12951,99,344763,99,+++++,+++,16,22649,99,+++++,+++,32723,99,22572,100,+++++,+++,31697,100
> ARCLinux,512M,6597,52,7307,0,5368,0,12934,99,343987,99,+++++,+++,16,22775,100,+++++,+++,32713,99,22832,100,+++++,+++,31899,99
> After commit:
> ARCLinux,512M,4453,36,6474,1,5852,0,12940,99,344329,100,+++++,+++,16,22168,98,+++++,+++,32760,99,22755,100,+++++,+++,32205,100
> ARCLinux,512M,5159,42,6944,1,5658,0,12945,99,344290,100,+++++,+++,16,22295,100,+++++,+++,32715,99,22888,99,+++++,+++,32007,99
> ARCLinux,512M,5170,42,6840,2,5315,0,12946,99,343889,100,+++++,+++,16,22445,100,+++++,+++,32681,99,22967,100,+++++,+++,32117,99
> --------------------------------------------------<8------------------------------------------------------------------------
>               ^^^^ 
> If i understand correctly, in third column is shown "sequential output" per character speed (K/sec), which decreased.
> 
> > What mount options did you use?
> 
> I didn't use any options. Simply:
> # mount /dev/mmcblk0p1 /mnt

Note that the file system on SDcard was ext4. 

Best regards,
Evgeniy Didin
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