Henrik Goldman wrote:
> Following my other Sun 280R questions I've had this week I reached a
> state where the system is up and stable.
> I installed it now with Solaris 8 (plain install, Generic_108528-29)
> but comparing with our older Ultra5 I don't see the 3-4 times speed
> increase that I had hoped for.
> We mainly use this system for compilation of c++ code using g++ and the
> specs being 2x 750 MHz with 2GB ram should outperform our Ultra 5 with
> 400 MHz and 512 MB easily.
>
> While I've only done a bit of early testing I noticed that the disks are
> pretty slow. The system comes with 2 Seagate 36GB FC-AL disks but
> currently we only use one of them.
>
> Maybe I'm missing some magic patches compared to a base install that
> would help?
>
> Thanks.
>
> -- Henrik

A modest tuning with no draw backs in /etc/system:
* Double the Solaris 8 thresholds for ufs throttling
set ufs:ufs_HW=786432
set ufs:ufs_LW=524288

Reboot or immediately activate with
echo ufs_HW/W 786432 | adb -kw
echo ufs_LW/W 524288 | adb -kw

For resilience, remount you disk with UFS logging:
In /etc/vfstab put the word logging in the options column.
Reboot or immediately activate with
mount -o remount,logging <mount-point>

UFS logging can also improve speed in some situations
(but decrease speed in others).

Disk mirroring with Disk Suite will further increase
resilience and read performance.

Install glm patch 109885-20.
Reboot to activate.

--
Michael Tosch @ hp : com