Re: kern/56329: nvme(4) takes long time to umount

["J. Hannken-Illjes" <hannken%mailbox.org@localhost>]

The following reply was made to PR kern/56329; it has been noted by GNATS.

From: "J. Hannken-Illjes" <hannken%mailbox.org@localhost>
To: NetBSD GNATS <gnats-bugs%netbsd.org@localhost>
Cc: 
Subject: Re: kern/56329: nvme(4) takes long time to umount
Date: Sun, 1 May 2022 15:56:19 +0200

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 > On 1. May 2022, at 07:00, matthew green <mrg%eterna.com.au@localhost> wrote:
 >> To me this doesn't look like a regression and recycling ~570000 vnodes
 >> per second looks ok.
 > 
 > it definiately feels like it got slower sometime in the last
 > 6mo-2 years.  it sure didn't take 10s of seconds to reboot
 > because unmounting root took so long before:
 > 
 > [ 2943701.7107086] unmounting 0xffff00000065b000 / (/dev/ld4a)...
 > [ 2943725.4316875] unmounting done
 > 
 > this was just now, on a system up ~34 days.
 
 - Memory size and therefore kern.maxvnodes didn't change over
   the last two years?
 
 - How large is your vnode cache (sysctl -n kern.maxvnodes),
   did you change it manually?
 
 --
 J. Hannken-Illjes - hannken%mailbox.org@localhost
 
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