> I set up one NFS server, and mounted on other server by TCP. Servers > connected with Giga network, and running 6.2-RELEASE. > > But I found the performance is very bad while transfering large block > size data. > I dont know if it makes any sense, but at least the following experiment might be fun:
1. With various block sizes (e. g. 32k, 128k, 1m, 2m) on the client box: dd if=/dev/zero of=/dev/null bs=XXX count=1k 2. With various block sizes (e. g. 32k, 128k, 1m, 2m) on the client box: dd if=/dev/zero bs=XXX count=1k | dd of=/path/to/nfs/mount bs=32k 3. With various block sizes (e. g. 32k, 128k, 1m, 2m) on the client box: dd if=/dev/zero bs=XXX count=1k | dd of=/dev/null bs=32k The idea would be, that possibly the client box has problems, when it has to handle big data blocks inside the kernel (in that case part 1 would show the same performance degradation as ur initial test). -Arne ____________________________________________________________________________________ The fish are biting. Get more visitors on your site using Yahoo! Search Marketing. http://searchmarketing.yahoo.com/arp/sponsoredsearch_v2.php _______________________________________________ freebsd-performance@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-performance To unsubscribe, send any mail to "[EMAIL PROTECTED]"
