Bill Rushmore wrote:
I am running build SXCR 39 on my Sun Blade 100 and the performance on it is
horrible lately. How horrible you ask? JDS is almost unsable because the
mouse is jumpy and typing lags. The uptime load average is over 4 at idle for
JDS. But how about this as a benchmark for building build 40:
==== Total build time ====
real 44:57:10
The longest this has taken a few builds back was around 10 hours. Nothing else
of any significance was running when I did the build. I did notice using top
that during the build the CPU was at 100%, as to be expexted, most of the CPU
was being used by the kernel, usually over 60% and around 30% for user
processes and load was pretty much over 6 the whole time. One difference I
have with build 39 on this box is that I am running ZFS for my home directory
(compression is turned off). Could ZFS cause that much overhead? I am
doubtful so I don't want to go fdisking my machine just yet. I would
appreciate any suggestions for troubleshooting the issue. With DTrace it
should be easy to discover the problem but I need some advice on where (and
maybe in how) to start.
This message posted from opensolaris.org
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I think this is a known bug in the sparc ATA driver; are you
building on an IDE drive?
6421427 netra x1 slagged by NFS over ZFS leading to long spins in the
ATA driver code
If you're spending a lot of time in ata_wait, this is the
problem.
=- Bart
--
Bart Smaalders Solaris Kernel Performance
[EMAIL PROTECTED] http://blogs.sun.com/barts
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