[H-GEN] Hyperthreading and CPU utilisation
Kris Amy
kris at lunadawn.net
Mon Aug 25 18:26:42 EDT 2003
[ Humbug *General* list - semi-serious discussions about Humbug and ]
[ Unix-related topics. Posts from non-subscribed addresses will vanish. ]
I have a HT box at work and for some things it actually runs slower
running 2 threads than just a single. An example of this is some prelim
test on ECC
$ ./ecc-static -bench 1
Benchmode: enabled.
Computation Threads: 1
Benchmark: 1048576 iterations in 2.213935 seconds. That is ~473625 iters/sec.
$ ./ecc-static -bench 2
Benchmode: enabled.
Computation Threads: 2
Benchmark: 1048576 iterations in 5.141547 seconds. That is ~203942 iters/sec.
Benchmark: 1048576 iterations in 5.208848 seconds. That is ~201307 iters/sec.
Kris
--
* This is list (humbug) general handled by majordomo at lists.humbug.org.au .
* Postings to this list are only accepted from subscribed addresses of
* lists 'general' or 'general-post'. See http://www.humbug.org.au/
More information about the General
mailing list