Re: port-amd64/57266: Poor disk performance on VirtualBox vioscsi0 and NetBSD 10.0_BETA

[mlelstv%serpens.de@localhost (Michael van Elst)]

The following reply was made to PR port-amd64/57266; it has been noted by GNATS.

From: mlelstv%serpens.de@localhost (Michael van Elst)
To: gnats-bugs%netbsd.org@localhost
Cc: 
Subject: Re: port-amd64/57266: Poor disk performance on VirtualBox vioscsi0 and NetBSD 10.0_BETA
Date: Sat, 11 Mar 2023 23:08:44 -0000 (UTC)

 bbartlomiej%gmail.com@localhost writes:
 
 >[  4197.011371] sd0(vioscsi0:0:0:0): adapter resource shortage
 >[  5134.201736] vioscsi0: autoconfiguration error: error reserving 35 (nsegs 18)
 
 vioscsi seems to allocate a too small queue, so it's "natural" to
 overflow it, and then that case isn't handled correctly by the
 driver.
 
 You should see a message like
 
   "cmd_per_lun %u qsize %d seg_max %u max_target %hu max_lun %u\n"
 
 The values come from VirtualBox. Can you please dump the values here?