Date: Tue, 2 Aug 2016 10:49:29 +0200 From: Gerrit =?ISO-8859-1?Q?K=FChn?= <gerrit.kuehn@aei.mpg.de> To: freebsd-net@freebsd.org Subject: NFS on 10G interfaces still painfully slow Message-ID: <20160802104929.a10602a4786c68b4547a45b9@aei.mpg.de>
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Hi all, I already reported this issue here a year ago and unfortunately was not able to fix it back then. Now I had another run at it, using two recent 10.3-machines with a direct 10G link. I still see nfs is painfully slow (around 20-80MB/s). I tried both nfsv3 and nfsv4, with almost the same results. Everything I tried so far (mtu size, wcommitsize, readahead...) only makes things worse or at least not much better. Moving data in different ways (scp, ggate) is much faster, so plain network speed should not be an issue. Is there anyone around here who can confirm that nfs can go faster over 10G links? Any hints for further tuning/debugging are greatly appreciated. cu Gerrit
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