> > Anyway, I guess we need to measure and improve if necessary.
> 
> ok, i'll do some benchmarks for nfs when i have enough time.
> (hopefully this weekend)
> i guess there're no noticable differences, though.

i did some test.
result is attached.

a.c		test program
s		script for test
log.orig?	without patch
log.test?	with patch

i did like:
cc a.c
/s 2>&1 | tee log.test0

(current directory is on ffs, /nfsv2 is nfsv2 and /nfsv3 is nfsv3.)

YAMAMOTO Takashi