Re: Hmmmm.

From: Dean Gaudet <>
Date: Sat, 22 Mar 1997 19:26:30 -0800 (PST)

It'd probably be possible to use the inode hack for news servers on linux
to improve squid as well. The hack where it provides a mechanism to get
an inode directory without a filename. Then squid needs to keep track of
the inode in its (presumably) more efficient method than the fs.

See <>.


On Wed, 19 Mar 1997, Michael O'Reilly wrote:

> In message <>, "Da
> niel O'Callaghan" writes:
> > If unlinking expired objects is time consuming because of the constant
> > inode metadata updates, it might be an idea to suggest to people with busy
> > caches to 'mount -u -o async /cachedir' on those OSs that support it.
> > Linux does not need this, apparently, because ext2fs defaults to async
> > mode. Async mode causes the inode metadata to be written to disk at the
> > next sync(), rather than immediately.
> Ummm. those timings were taking on a linux system, that also had the
> cache partitions mounted with 'no_atime'. (i.e. don't update the
> access time in the inodes) which further reduces the amount of data
> written.
> I'm not 100% sure why it's so slow, but I suspect is just that the
> number of directories is high enough, and the access random enough
> that the inode caching fails, and it ends up frequently waiting for
> inodes to be loaded.
> Michael.
Received on Sat Mar 22 1997 - 19:34:40 MST

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