On Fri, Feb 19, 2010 at 01:21:18AM +1300, Liam Farr wrote: | I have a AMD Geode LX800 based system (PC Engines ALIX 2C3) and am trying to | use a HIFN 7955 (Soekris VPN1411) crypto card to improve OpenSSL performance | (for SFTP and OpenVPN). | | However after installing the HIFN card I don't seem to get any performance | gain, and all the crypto still seems to be happening in software. | | # fstat /dev/crypto | USER CMD PID FD MOUNT INUM MODE R/W SZ|DV NAME | root sshd 10817 3 / 79183 crw-rw-rw- rw crypto /dev/crypto | root sshd 28851 3 / 79183 crw-rw-rw- rw crypto /dev/crypto | root sshd 2345 3 / 79183 crw-rw-rw- rw crypto /dev/crypto | _openvpn openvpn 15800 5 / 79183 crw-rw-rw- rw crypto /dev/crypto
I quick search of this list's archives or the archives of soekris-t...@lists.soekris.com will likely provide you with an answer. Essentially, on these lower-power devices, the cost of moving the data to and from the crypto card across the PCI bus negates most performance gains you would achieve trying to offload it. This, however, is but one possible answer to your problem. -- Ryan Corder || () ASCII ribbon campaign <ryanc at greengrey.org> || /\ against HTML email http://pgp.mit.edu:11371/pks/lookup?op=get&search=0x1CB59D69 [demime 1.01d removed an attachment of type application/pgp-signature]
