Author: Robert Hyatt
Date: 20:17:39 09/01/03
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On September 01, 2003 at 07:41:58, scott farrell wrote: >On August 31, 2003 at 20:38:23, Russell Reagan wrote: > >I'll vouch for linux SMP being sub par. > >I think for compute intensive it is fine. > >For IO intensive it is lousy. For large memory it is lousy. Based on what? I have some 2 gig and 4 gig linux boxes. Running huge raid-5 NFS-exported filesystems. It runs like the blazes. I can sustain disk-type speeds over a gigabit network connection, which says I/O is not a problem on SMP linux boxes. At least the 4-cpu machines (and duals of course) that I am using here... > >So for chess, its probably OK, and more controllable than windows. > >The fact that CPU are cheaper (INTEL vs SUN) is why people like Robert like it >better. I am sure nobody would knock back solaris on a SUN box with CPUs that >match intel - if you disregard the price difference. The problem is there are _no_ sun CPUs that match intel performance. Not a single one is within a factor of 1/3 the speed of the latest intel boxes... > > >>In a unix system administration class today, the professor said that the SMP >>support in Linux isn't very good. He said it's okay if you're doing 2x or maybe >>4x, but he said that anything higher than that and you should use something like >>Solaris, and gave the impression that Solaris was a very solid choice for an SMP >>machine. >> >>I was suprised that he said this, because (IIRC) Dr. Hyatt uses Redhat Linux, >>and he doesn't seem to think very highly of Sun, and he obviously knows a >>"little" about all things SMP ;-) >> >>I have a few questions in regards to how different operating systems compare in >>terms of SMP support. >> >>Which operating systems are preferred? >> >>Which operating systems should be avoided? >> >>How is Windows? >> >>How is FreeBSD? I heard Gian-Carlo saying something about FreeBSD not having >>good multithreaded support. >> >>If Linux has sub-par SMP support, will this be improved in kernel 2.6?
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