[mythtv-users] EXT3 problems?

[William Preston]

Along those lines, has anyone noticed any performance improvement by
formatting their ext2/3 partitions with '-T largefile4', which should make
one inode per 4meg?  And to repeat Zac's question, do reiser/xfs/jfs do
anything similar?

Or does this not even come into play when using options like noatime for
ext3?


----- Original Message ----- 
From: "Zachary S. Bedell" <zaclist at adirondack.net>
To: "'Discussion about mythtv'" <mythtv-users at snowman.net>
Sent: Tuesday, May 27, 2003 5:03 PM
Subject: RE: [mythtv-users] EXT3 problems?


> > It may be time to create a new FS for Media.  There is a
> > reason that TiVo didn't use any of the standard FS's.
>
> I'm inclined to agree with that.  One of the benefits of TiVo's MFS
> filesystem is that it allocates space in 512MB clusters.  With TiVo's
usual
> range of recording qualities, that amounts to about 30 minutes per
> allocation.  It really cuts down on the amout of drive space and time
wasted
> in allocating things in (relatively) small cluster sizes that most
normal
> filesystems use.
>
> I wonder if ext[23] or reiser, jfs, or any of the other options
supported by
> current kernels can be formatted with huge cluster sizes?  Or failing
that,
> could they be easily and reliably hacked to do so?
>
> Unfortunately, I'm not even sure if the kernel could handle clusters
that
> large.  For TiVo's MFS, they implemented everything in userspace without
any
> help from the kernel, so who knows...
>
> Best regards,
> Zac Bedell
>
>
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