On Thu, Apr 30, 2009 at 11:49 PM, Matthew Dempsky <matt...@dempsky.org> wrote: > On Thu, Apr 30, 2009 at 6:53 PM, Marco Peereboom <sl...@peereboom.us> wrote: >> listen to ted; he told you the real reason why it is slow. > > Ted said it's slow because of the context switches, but Theo confirmed > that there are no context switches for the soft crypto code, which is > what I'm interested in.
If you turn on cryptodevallowsoft and run openssl speed -evp aes-128-cbc, you can watch the crypto thread in the kernel soaking up cpu. In order for the thread to be running, you're definitely context switching to it.
