xfs
[Top] [All Lists]

Re: synctest results on xfs/ext3(htree) on 2.6.5-rc3-mm4

To: Yusuf Goolamabbas <yusufg@xxxxxxxxxxxx>
Subject: Re: synctest results on xfs/ext3(htree) on 2.6.5-rc3-mm4
From: Steve Lord <lord@xxxxxxx>
Date: Fri, 02 Apr 2004 08:29:52 -0600
Cc: linux-xfs@xxxxxxxxxxx, akpm@xxxxxxxx
In-reply-to: <20040402141138.GB26499@xxxxxxxxxxxx>
References: <20040402104436.GA24772@xxxxxxxxxxxx> <406D6374.5000802@xxxxxxx> <20040402141138.GB26499@xxxxxxxxxxxx>
Sender: linux-xfs-bounce@xxxxxxxxxxx
User-agent: Mozilla Thunderbird 0.5 (X11/20040208)
Yusuf Goolamabbas wrote:

>>Did you use default mkfs parameters on xfs? Try upping the log size:
>>
>>   mkfs -t xfs -f -l size=32768b .....
>>
>>Also try
>>
>>   mount -o logbufs=8 ....
>>The multiple test dirs will make xfs spread out all over the disk,
>>not sure how ext3 will place them.  Probably seek heaven, what
>>does the disk sound like on ext3, it chatters a lot for xfs.
>>    
>>
>
>Big difference
>
>With your mkfs settings and mount options, the same synctest finishes in
>
>real 97.64 user 2.20 sys 30.19
>
>That's close to a 10x difference from the original numbers
>  
>

Thats somewhat of a relief, we should be able to get closer to ext3 than 
that,
but at least it puts us in the same ballpark.

>Can't tell you about disk noise now, doing the test remotely. I'll try
>to listen in on Monday
>
>  
>
That's OK, if our 2 week old lets me I might be able to try ext3 myself, 
just a
matter of being able to get to the basement ;-)

Steve


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