Date: Tue, 16 Mar 2004 15:15:41 +0800 From: Erich Dollansky <oceanare@pacific.net.sg> To: Artem Koutchine <matrix@itlegion.ru> Cc: freebsd-hardware@freebsd.org Subject: Re: Multiprocessor system VS one processor system Message-ID: <4056A99D.8090406@pacific.net.sg> In-Reply-To: <026901c40b22$2c557c50$0c00a8c0@artem> References: <CD1C1AC62C4DA944914E36E7B3DD904313DB17@sestosrv004p.ad.octapharma.se> <002f01c4081c$bd720810$0c00a8c0@artem> <40568DC4.7020209@pacific.net.sg> <026901c40b22$2c557c50$0c00a8c0@artem>
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Hi, Artem Koutchine wrote: > Hm.. > Let me make up a case. > Two boxes: > 1) Dual CPU X Mhz with Y KB of cache > 2) Sinnge CPU with 2X Mhz and 2Y KB of cache > > Which one is faster under FreeBSD? I think the > second one, because SMP overhead is gone. > It still depends on the program you run. The individual task will be completed faster on system 2 but the overall performance will be better on system one. System 2 has always to stop a task when switching to another one. System 1 can run two task at the same moment of time. Erich
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