Date: Fri, 29 Aug 2008 16:50:51 -0400 From: Derek Buttineau <derek@csolve.net> To: freebsd-questions@freebsd.org Subject: NFS and File Over Write Performance Message-ID: <3099DB76-6B35-46D7-8875-DC1CA462C71D@csolve.net>
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Just curious if anyone has run into this before. We are testing an HP DL380 G5 Storage Server. The odd thing I'm experiencing is when over writing a file on the NFS share with the FreeBSD NFS client my transfer speed is about 1/3 of what it is if I'm creating a new file on the share. This is all over a 1Gb link and I'm using clpbar to monitor speeds on the copy. From my tests, initial file creation gets me about 89MB/s, while overwriting gets me about 25MB/s The same test using RHEL4 as the client gives a consistent 79MB/s for creation and overwrite. Seems very strange and I've tested from FreeBSD 6.2, 6.3 and 7.0, all with the same results. Any thoughts? Thanks, Derek
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