Red Hat Bugzilla – Bug 123333
NFS throughput problem
Last modified: 2007-11-30 17:10:42 EST
Description of problem:
I have a FC2T3 nfs server and a RH-9.0 nfs client, both connected to a
Trying to write a large file (dd if=/dev/zero of=big500 bs=1M
count=500) to the nfs
server, the copy process takes minutes or infinite time. Doing the
same test, but using RH-9.0 (same hw) as the nfs server, the copy
process takes ~10 seconds.
Taking a tcpdump, I get lots of 'slsfs.nfs: 1472 write fh
4096 bytes @ 0x1d3d000 <unstable>'.
I also tried to increase rmem_default and rmem_max to 512k - no change.
Hardware: Dell PE2650, Broadcom Corporation|NetXtreme BCM5703X Gigabit
NIC driver: TG3
I was also going to test the Broadcom driver, but failed on 'bcm5700:
Unknown symbol genapic'
Kernels test so far (nfs server): 2.6.5-1.358smp and 2.6.5-1.327smp
Is this still an issue with more recent FC kernels?
Fedora Core 2 has now reached end of life, and no further updates will be
provided by Red Hat. The Fedora legacy project will be producing further kernel
updates for security problems only.
If this bug has not been fixed in the latest Fedora Core 2 update kernel, please
try to reproduce it under Fedora Core 3, and reopen if necessary, changing the
product version accordingly.