Re: NFS Still broken in 2.6.x?

[Trond Myklebust]

On Thu, 2006-02-23 at 15:35 -0500, Bryan Fink wrote:
> Hi All.  I'm running into a bit of trouble with NFS on 2.6.  I see that
> at least Trond thought, mid-January, that "The readahead algorithm has
> been broken in 2.6.x for at least the past 6 months." (
> http://www.ussg.iu.edu/hypermail/linux/kernel/0601.2/0559.html) Anyone
> know if that has been fixed?

No it hasn't been fixed. ...and no, this is not a problem that only
affects NFS: it just happens to give a more noticeable performance
impact due to the larger latency of NFS over a 100Mbps link.

I will get round to this, but the general opacity of the current
readahead code has been a bit of a put-off in the face of other NFS
problems.

Cheers,
  Trond

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