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From: "Łukasz Mierzwa" <prymitive@pcserwis.net>
To: "reiserfs-list@namesys.com" <reiserfs-list@namesys.com>
Subject: any way to disable fsync?
Date: Tue, 11 Jul 2006 23:03:12 +0200	[thread overview]
Message-ID: <op.tcjl3meld4os1z@localhost> (raw)

Hi

I got problem with apps that are calling fsync, it makes my hard drive  
flush like mad and it slows down things quite a lot.
Example:
I'm using amarok and amrok uses sqlite for storing data, sqlite calls  
fsync after every write so on song change amarok writes to sqlite some  
statistic data about what I listen and sqllite calls fsync, now I got  
amarok trying to load next song and sqlite fsyncing and the problem is  
that fsyncing under reiser4 is expensive, it takes a lot of time even if  
I'm only running amarok and nothing else ( I got 4200RPM drive in my  
notebook so it;s not a speed daemon).  I patched sqlite in amarok to fake  
all fsync and it fixed it but there are other apps that try to secure my  
data by syncing (I'm now running azareus and only fsyncs called every  
minute can explain writing to disk at full speed almost non stop while I'm  
downloading only 64KB/s ).
So my question is: is there any way to disable fsync for reiser4? (beside  
patching it to fake fsync instead of doing them).
Thanks for great fs.

£ukasz Mierzwa

             reply	other threads:[~2006-07-11 21:03 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-07-11 21:03 Łukasz Mierzwa [this message]
2006-07-11 21:14 ` any way to disable fsync? Jonathan Briggs
2006-07-11 21:42 ` Hans Reiser
2006-07-11 21:57 ` Valdis.Kletnieks
2006-07-11 23:41   ` Toby Thain
2006-07-11 23:41     ` Toby Thain
2006-07-12  0:04       ` Hans Reiser
2006-07-12  3:14         ` Valdis.Kletnieks
2006-07-12  5:47           ` Hans Reiser
2006-07-12  4:48       ` Łukasz Mierzwa

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