[OpenAFS-devel] salvager stuck on one file?

[Rainer Toebbicke]

Jim Rees wrote:
> I wonder if the fsync is really necessary.  This would go a hundred times
> faster without it.

200 times on a standard RAID. Measured.

While I don't believe it's necessary, I did not dare to remove it 
entirely, believing in the good reasons that must have motivated 
somebody to fsync in the first place.

Instead, I came up with a patch that batches all the fsyncs together 
into one on a suitable scale. We've been running like that for over a 
year now with no ill effects. On the contrary - it motivated migrating 
to the namei file server instead of the inode one which will still do 
this inside the file system through inc()/dec().

I'll dig that one out and submit it.

-- 
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
Rainer Toebbicke
European Laboratory for Particle Physics(CERN) - Geneva, Switzerland
Phone: +41 22 767 8985       Fax: +41 22 767 7155