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wcooley at nakedape.cc
Mon Jul 31 19:01:12 EDT 2006
On Mon, 2006-07-31 at 15:40 -0700, Andrew Morgan wrote:
> On Mon, 31 Jul 2006, Wil Cooley wrote:
> > How big is your journal? I have instructions for determining the size
> > here, because it's non-obvious:
> > http://nakedape.cc/wiki/PlatformNotes_2fLinuxNotes
> > (BTW, you can drop the 'defaults' from the entry in your fstab;
> > 'defaults' exists to fill the column in the table when nothing else is
> > there.)
> Those tools are a little scary, but here is what it reported:
Yeah, but debugfs opens the filesystem read-only w/o '-w'.
> Inode: 8 Type: regular Mode: 0600 Flags: 0x0 Generation: 0
> User: 0 Group: 0 Size: 33554432
> Performance has been okay for me so far. Do you have any feeling for
> whether it is worth changing the journal size?
Well, 32MB is small for a write-heavy filesystem. But if you're not
seeing any problems with kjournald stalling while it flushes, then it
might not be worth the trouble of re-creating the journal as a larger
size. It's unlikely to hurt anything, but I wouldn't make it huge
priority. Did you also read the LOPSA post from Ted Ts'o that I linked
to in the section above the instructions?
Wil Cooley <wcooley at nakedape.cc>
Naked Ape Consulting, Ltd
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