linux-kernel - Re: Very slow write on flash drive in sync mode???

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Message-ID: <20060920191343.GA15386@irc.pl>
Date:	Wed, 20 Sep 2006 21:13:44 +0200
From:	Tomasz Torcz <zdzichu@....pl>
To:	CIJOML <cijoml@...ny.cz>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: Very slow write on flash drive in sync mode???

On Wed, Sep 20, 2006 at 08:58:05PM +0200, CIJOML wrote:
> Hi,
> 
> I use SanDisk cruzer Titanium 2 GB mounted as sync in fstab
> /dev/sda1       /mnt/cruzer_sync      vfat    user,noauto,sync                
> 
> When I use flash drive in sync mode, it writes on it only 64kB/s. When I 
> umount it and mount it in not sync mode but do sync manually after it writes 
> into memory, kernel writes on flash drive 11 MB/s!!! What is wrong in my 
> configuration?

  That's expected with sync vfat mount. Use other filesystem or async.

-- 
Tomasz Torcz                "Funeral in the morning, IDE hacking
zdzichu@....-nie.spam-.pl    in the afternoon and evening." - Alan Cox

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