We have a rack of Dell Poweredge 750's which we use as processing nodes
for scientific experiments. The CPU's are P4s with HT. Currently, the
2.6.8-smp kernel is running on the cluster, so /proc/cpuinfo sees each
machine as having 2 processors.
I've spent the last few days googling to find some answers to my
questions without much luck, so I was hoping someone on this list might
have had experience with this.
1) How well will *non-threaded* applications perform? Will they only
get 1/2 the CPU power?
- Most of the apps are not threaded, so might I be better off
not using the HT capabilities?
2) How much of the HT capabilities are tied to the Scheduler/Kernel and
how much is hardware based?
- Would it be worth trying out the -mm & other development
3) Are there any accepted benchmark test suites available that I could
use to run my own tests and compair the performance of different
Maintained by the ILUG website team. The aim of Linux.ie is to
support and help commercial and private users of Linux in Ireland. You can
display ILUG news in your own webpages, read backend
information to find out how. Networking services kindly provided by HEAnet, server kindly donated by
Dell. Linux is a trademark of Linus Torvalds,
used with permission. No penguins were harmed in the production or maintenance
of this highly praised website. Looking for the
Indian Linux Users' Group? Try here. If you've read all this and aren't a lawyer: you should be!