Subject: Re: [linux-audio-user] Journaling filesystems [was: Ardour Crash + can't boot]
From: Joey Reid (joe_AT_joeyreid.com)
Date: Mon Apr 26 2004 - 22:22:03 EEST
I am using xfs on my fedora/ccrma box (kernel from atrpms), but I
haven't got down to any audio work yet - when i do I'll report my
results.
On Apr 26, 2004, at 3:06 PM, Jan Depner wrote:
> I would be willing to bet that XFS might be even better than reiserfs
> but I have no data on that. Mark Knecht documented the responses of
> the
> different filesystems using Benno Senoner's Latency Test program. I
> have the results on my site at:
>
> http://myweb.cableone.net/eviltwin69/Arcana.html
>
>
> My own (totally unscientific) results are also commented on there.
>
>
> Jan
>
>
> On Mon, 2004-04-26 at 12:40, Maarten de Boer wrote:
>>> If you're going to rebuild use ext3 instead of ext2 for the root
>>> partition. It's journalled. Use Reiserfs for the data partition.
>>> The
>>
>> What is the reason for using two different filesystems here? Is
>> reiserfs
>> more suitable for (audio) data?
>>
>> Personally, I am using xfs (also journalled) for all workstations I
>> install, after having used it successfully on a heavy duty fileserver
>> for more than 2 years. It never gave me any problems, and I have done
>> some nasty tests.
>>
>> Now, I have never run Ardour - on top of my TODO list for a looong
>> time
>> :-), so I can't say how Ardour and xfs play together, but I'd be
>> surprised
>> if there are any problems. Anyway, I would be very much interested to
>> hear
>> if others are using xfs, and how it behaves under heavy multitrack
>> audio
>> IO.
>>
>> Ah, and xfs has a special "realtime" mode. From the kernel
>> configuration:
>>
>> If you say Y here you will be able to mount and use XFS filesystems
>> which contain a realtime subvolume. The realtime subvolume is a
>> separate area of disk space where only file data is stored. The
>> realtime subvolume is designed to provide very deterministic
>> data rates suitable for media streaming applications.
>>
>> which sounds very interesting. BUT!:
>>
>> This feature is unsupported at this time, is not yet fully
>> functional, and may cause serious problems.
>>
>> Serious problems... Hmm, looking at Aaron's mail, he already got
>> enough serious problems even without experimental xfs features...
>>
>> xfs is in kernel 2.6.x, and has been included in 2.4.25 as well.
>> (before that, sgi provides patches)
>>
>> maarten
>
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