Date: Wed, 22 Nov 2006 23:53:02 +0100 From: Andrea Venturoli <ml.diespammer@netfence.it> To: VeeJay <maanjee@gmail.com>, freebsd-questions@freebsd.org Subject: Re: Does disk encryption causes a performance penalty for Data Access/Read/Write, etc Message-ID: <4564D4CE.1060104@netfence.it> In-Reply-To: <2cd0a0da0611220715n7e88564ahe19f20d033ed39a9@mail.gmail.com> References: <2cd0a0da0611220715n7e88564ahe19f20d033ed39a9@mail.gmail.com>
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VeeJay wrote: > Hi > > Does *disk encryption* causes a *performance* penalty for Data > Access/Read/Write, etc? > *Yes*. If your disk is faster than your CPU, I/O will slowdown. I've seen an Athlon64 4200+ use up to 90% of its computing power just to transfer files from an NFS server to a local SATA disk. In case the CPU was less powerful, or otherwise busy doing something else, total throughput would have decreased. bye av.
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