NFS - slow
wojtek at wojtek.tensor.gdynia.pl
Fri Apr 27 20:05:46 UTC 2012
is there any way to speed up NFS server?
from what i noticed:
- reads works fast and good, like accessed locally, readahead up to
maxbsize works fine on large files etc.
- write works terribly. it performs sync on every write IMHO,
setting vfs.nfsrv.async=1 improves things SLIGHTLY, but still - writes are
sent to hard disk every single block - no clustering.
am i doing something wrong or is it that broken?
i tried user space nfs from ports, it's funny but it's performance is
actually better after i removed fsync from code.
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