Opteron Benchmarks (22 Jul 2003)

These results are completely unfair and shouldn't be taken as gospel in any way. Lithium is the dual Operton (it's specs are in a previous post), lithium32 is Lithium running 32-bit code (Mandrake 9.1) and Loch is a dual 2.66Ghz Xeon with only 1GB of memory (Lithium has 4). Lithium only has an ATA disk, while Loch is LVD SCSI. I tried as much as possible to allow both systems to keep everything in buffer cache.

Everything was run with GCC 3.3, but keep in mind that Lithium (in 64-bit mode) is actually building a slightly different kernel (x86-64, not i386).

make 2.6.0-test1, default configure, no -j
lithium:	4m33
lithium32:	5m26
loch:		5m41

make 2.6.0-test1, after make clean, -j4
lithium:	2m27
lithium32:	2m48
loch:		2m57

make 2.6.0-test1, after make clean, -j8
lithium:	2m28
lithium32:	2m48
loch:		3m08

md5sum of 512M zero file (in buffer cache)
lithium:	3.1s
lithium32:	10.6s
loch:		3.4s
stimpy:		16.8s

Stimpy is another Mandrake box because I didn't quite believe the result for Lithium in 32-bit mode. It seems that Mandrake 9.1's md5sum just sucks, so ignore lithium32's result in that.