Date: Thu, 02 Feb 2012 12:08:07 -0600 From: Tim Daneliuk <tundra@tundraware.com> To: FreeBSD Mailing List <freebsd-questions@freebsd.org> Subject: Asymmetric NFS Performance Message-ID: <4F2AD107.40703@tundraware.com>
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Server: FBSD 8.2-STABLE / MTU set to 15000 Client: Linux Mint 12 / MTU set to 8192 NFS Mount Options: rw,soft,intr Problem: Throughput copying from Server to Client is about 2x that when copying a file from client to server. The client does have a SSD whereas the server has conventional SATA drives but ... This problem is evident with either 100- or 1000- speed ethernet so I don't think it is a drive thing since you'd expect to saturate 100-BASE with either type of drive. Things I've Tried So Far: - Increasing the MTUs - This helped speed things up, but the up/down ratio stayed about the same. - Fiddling with rsize and wsize on the client - No real difference Ideas anyone? ----------------------------------------------------------------------- Tim Daneliuk
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