Date: Sat, 13 Jan 2024 19:24:40 +0000 From: bugzilla-noreply@freebsd.org To: fs@FreeBSD.org Subject: [Bug 276299] Write performance to NFS share is ~4x slower than on 13.2 Message-ID: <bug-276299-3630-EFWInnTJrp@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-276299-3630@https.bugs.freebsd.org/bugzilla/> References: <bug-276299-3630@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D276299 --- Comment #6 from Rick Macklem <rmacklem@FreeBSD.org> --- Oh, and it might be worth capturing packets while writes are slow and taking a look at them in wireshark. (Unlike tcpdump, wireshark knows NFS.) Something like: # tcpdump -s 0 -w out.pcap host <nfs-client-host> on the NFS server and then look at out.pcap in wireshark. (I just install wireshark on my Windows laptop. No need to bother with X windows.) You might see error replies for NFS RPCs or TCP timeouts/retransmits that would explain the slowdown. (Or TCP reconnects. I once saw a case where the network switch would decide to inject an RST in the TCP stream forcing the NFS client to create a new connection. Why did it do this? No idea.) --=20 You are receiving this mail because: You are the assignee for the bug.=
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