hi,

are you using softdeps?  if so, there was a bug in the 1.5 softdep code
which could result in data corruption but made things much faster.
now that the bug is fixed, things are unfortunately slower.  but in
-current we've made other unrelated changes which make things much faster
again (the new dirpref algorithm).  hopefully the dirpref stuff will be
backported to the 1.5 branch so that 1.5.3 can be faster as well.

if you're not using softdeps, then we'll have to look for another cause.

-Chuck


On Fri, Sep 14, 2001 at 09:51:15AM -0700, Bri wrote:
>  Heres the situation
>  K6-2/300MHz, 64MB RAM, NetBSD 1.5.1., 2 physical drives both with
> softdeps
> 
>  While trying to untar pkgsrc.tgz on a un-loaded system (about 20megs of
> RAM used, no swap space used) it's abysmall slow. Disk writes top out at
> about 200KB/second. I did not notice this when the same box was running
> 1.5 (and I did untar those files to upgrade to 1.5.1) and it can do the
> reverse process (i.e. tar up the pkgsrc directory) at full speed. RAM
> never gets filled up though, and no swap space is ever used on disk. It's
> odd too, because it seems to go at full speed for about 80 files then get
> really slow.
> 
>  I've checked when I can, I've tried running the priorities -5 nice,
> I've tried gunziping them first (which is fast) all to no avail.
> 
>  These same tar files untar fast on another box.
> 
>   Any suggestions?
> 
>  itai at replic d0t net