Date: Tue, 31 Oct 2006 20:53:36 -0800 From: Sam Leffler <sam@errno.com> To: Nicolas Blais <nb_root@videotron.ca> Cc: freebsd-current@freebsd.org, Mike Tancsa <mike@sentex.net> Subject: Re: Hifn 7955/7956 crypto accelerator questions Message-ID: <45482850.4060500@errno.com> In-Reply-To: <200610312326.05311.nb_root@videotron.ca> References: <200610311629.06271.nb_root@videotron.ca> <200611010358.kA13wprx067313@lava.sentex.ca> <200610312326.05311.nb_root@videotron.ca>
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Nicolas Blais wrote: > They do claim 500mbps throughput for the vpn1461 and 250mbps for the > vpn1401. Then again, this remains to be proven :). I believe the 1461 uses a 7955. I was able to get 500+ Mbps for symmetric crypto ops w/ a 64-bit pci hifn reference card that had a 7956 part on it (cryptotest -z). But you need largish block sizes. As Mike noted you won't see single-stream improvements so much as reduced load on the cpu that allows multiple streams to be handled better. Sam
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