I sent out the attached mail about a month ago and the response was great.
Thank you very much to those who reponse, it has helped us a lot.
The summary of the comment is:
There should be performance improvement on a multi-processors machine once it
has been upgraded from SunOS to Solaris. However this also depends whether if
the application running on the machine is written to take advantage of
multi-processing. Performance degrade on a SPARC Workstation 2 after it has
been upgraded to Soalris 2.4 is because Solaris 2.4/2.5 is not design for
single processor machine.
The general consensus is upgrade to Solaris 2.5 instead of Solaris 2.4.
After reading all the responses, we had upgraded to Solaris 2.5 in mid May.
Overall there is a performance improvement except printing. Now it takes
longer to print, but as printing is done over the network, the cause might be
a combination of factors. The major problem we have encounterd is not able to
boot up any XTerms (we are still trying to find a solution!!!).
--------- Original Text ----------
To: sun-managers @ ra.mcs.anl.gov @ Internet
cc:
From: Priscilla Kwok
Date: 05/05/96 12:21:17 PM
Subject: Solaris Performance on Multi-Processors Machine
If a SunSPARC 670MP Server with dual processors, about 352Mb memory is upgraded
from SunOS 4.1.3 to Solaris 2.4, will the system performance likely to be
affected? Improved? Degraded?
We have a SunSPARC Workstation 2 (development machine) and a SunSPARC 670MP
Server (production machine). They were both running SunOS 4.1.3. A couple of
months ago, with the aim of upgrading the system, we have added a second
processors and more memory on to the 670MP server.
Since then we have upgraded the SunSPARC Workstation 2 to Solaris 2.4.
Unfortunatley the system performance has been degraded and we believe it is
because Solaris is resources demanding. We are now having second thought in
upgrading the SunSPARC 670MP Server to Solaris 2.4.
As Solaris 2.4 is built for multi-processors and SunOS 4.1.3 is not, we would
like to know is the existing SunOS 4.1.3 already taking advantage on the second
processors? We are afraid that if it is then there will be performance issue
once the system is upgraded to Solaris 2.4.
Thank you,
Priscilla
This archive was generated by hypermail 2.1.2 : Fri Sep 28 2001 - 23:11:01 CDT