[Bug 276299] Write performance to NFS share is ~4x slower than on 13.2
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Date: Sat, 13 Jan 2024 19:08:39 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=276299 --- Comment #5 from Rick Macklem <rmacklem@FreeBSD.org> --- There is very little difference in the NFS server for 13.2 vs 14.0. As such, the hit is most likely a network fabric issue or a ZFS issue. The only thing I can suggest to try is: rsize=131072,wsize=131072 It should perform about as well as 1Mbyte, but??? If it does help a lot, there is something in the network fabric (most likely the NIC/driver) that cannot handle the burst of TCP segments well. Did you happen to have "sync=disabled" set on your 13.2 ZFS. Setting this runs the risk of data loss when the NFS server crashes/reboots, but will help w.r.t. write performance. -- You are receiving this mail because: You are the assignee for the bug.