Re: kern/50604 (ld(4) on top of virtio(4) performs very badly)

[Matthias Scheler <tron%zhadum.org.uk@localhost>]

The following reply was made to PR kern/50604; it has been noted by GNATS.

From: Matthias Scheler <tron%zhadum.org.uk@localhost>
To: gnats-bugs%NetBSD.org@localhost
Cc: jakllsch%NetBSD.org@localhost
Subject: Re: kern/50604 (ld(4) on top of virtio(4) performs very badly)
Date: Sat, 16 Jun 2018 23:59:27 +0100

 On Sat, Jun 16, 2018 at 12:46:53PM +0000, jakllsch%NetBSD.org@localhost wrote:
 > Synopsis: ld(4) on top of virtio(4) performs very badly
 > 
 > State-Changed-From-To: open->feedback
 > State-Changed-By: jakllsch%NetBSD.org@localhost
 > State-Changed-When: Sat, 16 Jun 2018 12:46:53 +0000
 > State-Changed-Why:
 > likely fixed by recent commit
 
 Here are the performance numbers with a 2018-06-16 kernel:
 
 IDE:
 sh -c "tar -xzf /scratch/pkgsrc/distfiles/perl-5.26.2.tar.xz; sync"  1.05s user 2.03s system 60% cpu 5.118 total
 
 virtio(4):
 sh -c "tar -xzf /scratch/pkgsrc/distfiles/perl-5.26.2.tar.xz; sync"  1.18s user 1.55s system 74% cpu 3.665 total
 
 The problem is fixed as far as I can tell.
 
 	Thanks for the good work!
 
 -- 
 Matthias Scheler                                  http://zhadum.org.uk/