Re: [Lsf-pc] [LSF/MM TOPIC] a few storage topics

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]


Christoph Hellwig <hch@xxxxxxxxxxxxx> writes:

> All three filesystems use the generic mpages code for reads, so they
> all get the same (bad) I/O patterns.  Looks like we need to fix this up
> ASAP.

Actually, in discussing this with Vivek, he mentioned that read ahead
might be involved.  Sure enough, after bumping read_ahead_kb, 1MB I/Os
are sent down to the storage (for xfs anyway).

Cheers,
Jeff

--
dm-devel mailing list
dm-devel@xxxxxxxxxx
https://www.redhat.com/mailman/listinfo/dm-devel


[DM Crypt]     [Fedora Desktop]     [ATA RAID]     [Fedora Marketing]     [Fedora Packaging]     [Fedora SELinux]     [Yosemite Discussion]     [Yosemite Photos]     [KDE Users]     [Fedora Tools]     [Fedora Docs]

Add to Google Powered by Linux