xfs
[Top] [All Lists]

Re: Performance degeneration issues

To: "Dave Chinner" <david@xxxxxxxxxxxxx>
Subject: Re: Performance degeneration issues
From: "Markus Roth" <Markus.Roth@xxxxxxxxxxxxxxx>
Date: Wed, 20 Oct 2010 16:19:14 +0200
Cc: xfs@xxxxxxxxxxx
In-reply-to: 20101019014245.GN29677@dastard
Reply-to: "Markus Roth" <Markus.Roth@xxxxxxxxxxxxxxx>
User-agent: SOGoMail 1.3.1
Hello once more,
 
Am Dienstag 19 Oktober 2010 03:42 CEST, Dave Chinner <david@xxxxxxxxxxxxx> 
schrieb: 

> Also, what's the output of of 'xfs_info <mntpt>'?

here's one
meta-data=/dev/sda3              isize=256    agcount=16, agsize=2949182 blks
         =                       sectsz=512   attr=0
data     =                       bsize=2048   blocks=47186912, imaxpct=25
         =                       sunit=0      swidth=0 blks, unwritten=1
naming   =version 2              bsize=4096
log      =internal               bsize=2048   blocks=32768, version=1
         =                       sectsz=512   sunit=0 blks, lazy-count=0
realtime =none                   extsz=4096   blocks=0, rtextents=0

and another 
meta-data=/dev/sdb1              isize=256    agcount=16, agsize=2621355 blks
         =                       sectsz=512   attr=0
data     =                       bsize=2048   blocks=41941680, imaxpct=25
         =                       sunit=0      swidth=0 blks, unwritten=1
naming   =version 2              bsize=4096
log      =internal               bsize=2048   blocks=32768, version=1
         =                       sectsz=512   sunit=0 blks, lazy-count=0
realtime =none                   extsz=4096   blocks=0, rtextents=0

Please excuse my forgetting to post the requested information.
Used blocks differ because of different states in work process.

What I've also noticed is that compared to ext3, file-descriptors 
get closed quite slowly (although that might also be a VMWare issue
as the one server running on pure hardware currently is testing ext3). 

Greetings,
   Markus

<Prev in Thread] Current Thread [Next in Thread>