Re: kern/57160: NFS (over TCP) very slow in 10_BETA

[Manuel Bouyer <bouyer%antioche.eu.org@localhost>]

The following reply was made to PR kern/57160; it has been noted by GNATS.

From: Manuel Bouyer <bouyer%antioche.eu.org@localhost>
To: gnats-bugs%netbsd.org@localhost
Cc: kern-bug-people%netbsd.org@localhost, gnats-admin%netbsd.org@localhost, netbsd-bugs%netbsd.org@localhost
Subject: Re: kern/57160: NFS (over TCP) very slow in 10_BETA
Date: Thu, 5 Jan 2023 11:13:45 +0100

 On Wed, Jan 04, 2023 at 07:45:00PM +0000, bouyer%antioche.eu.org@localhost wrote:
 > >Description:
 > 	I have my mailbox (in mbox format) stored on a NFS server (which
 > 	is a cubieboard 2 with a SATA SSD). The NFS mount uses:
 > 	type nfs (nodev, nosuid, fsid: 0xb06/0x70b, reads: sync 0 async 0, writes: sync 0 async 0)
 > 	The client is connected to a gigabit switch (using a alc(4) interface),
 > 	the server is connected at 100Mbs.
 > 	Since upgrading the client to 10.0_BETA loading the mailbox
 > 	with mutt is very slow, and the transfers seems to pause
 > 	several times.
 > 	Reading the mailbox with dd gives expected speed:
 > 	(I made sure there isn't local cache in the way)
 > 	rochebonne:~> dd if=Mail/Inbox of=/dev/null
 > 	132+1 records in
 > 	132+1 records out
 > 	138625298 bytes transferred in 17.273 secs (8025548 bytes/sec)
 > 	I can't reproduce the slow read with dd.
 
 But creating a tar archive with the files on NFS is also slower than it
 used to be.
 
 -- 
 Manuel Bouyer <bouyer%antioche.eu.org@localhost>
      NetBSD: 26 ans d'experience feront toujours la difference
 --