Paul Krizak ha scritto:
Interesting...here at AMD we're using NetApp filers (dual Gbit attached) and we're finding that in RHEL 5.1 we get great streaming NFS performance (i.e. "big files") but abysmal small file performance (files smaller than 1KiB or so).
upgrading from version 4 to 5.1 we had a nightmare related to this increbible problems.
Incredible because you can see via the nfsstat command that the new and *currently distributed* kernels flood the filer with a great amount of lookup calls. This not only slowed down the new web servers, but actually made a "DOS attack" on the Netapp, so i think it's incredible Red Hat continues distrubuting these kernels as official ones.
You must downgrade the kernel to the versions released before the bug or get a new one from http://people.redhat.com/dzickus/el5/
-- Alessandro Tinivelli _______________________________________________ rhelv5-list mailing list [email protected] https://www.redhat.com/mailman/listinfo/rhelv5-list
