Date: Sat, 14 Jun 2008 21:29:09 +0200 From: Kris Kennaway <kris@FreeBSD.org> To: Wojciech Puchar <wojtek@wojtek.tensor.gdynia.pl> Cc: Ryan Coleman <ryan.coleman@cwis.biz>, freebsd-questions@FreeBSD.org Subject: Re: 64-bit? Message-ID: <48541C05.9040503@FreeBSD.org> In-Reply-To: <20080614205615.J35816@wojtek.tensor.gdynia.pl> References: <4853E03A.3040307@cwis.biz> <20080614174953.S30950@wojtek.tensor.gdynia.pl> <4853FFAD.5000007@FreeBSD.org> <20080614205615.J35816@wojtek.tensor.gdynia.pl>
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Wojciech Puchar wrote: >>> >>> you should run 64-bit version on 64-bit machine for performance >> >> This is workload-dependent. Some workloads run more slowly on a >> 64-bit CPU, others faster. > could you please give an example of slower running FreeBSD/amd64 thing > than FreeBSD/i386? > > there are more memory usage sometimes, that's why i use 32-bit squid > binary on 64-bit systems Precisely that. If your application relies on memory I/O, it may run slower because data is typically bigger so takes longer to copy. Some java applications can fall into this category, for example. Kris
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