Re: hifn accelerator slows things down?
[email protected] (Matthias Scheler)
| Newsgroups | gmane.os.netbsd.devel.crypto |
|---|---|
| Organization | Z'Ha'Dum - home of the shadows |
| Message-ID | <[email protected]> |
In article <[email protected]>, "Nathan J. Williams" <[email protected]> writes: > In addition to the usual syscall overhead, the /dev/crypto > implementation has to pay to copy the data into the kernel, perform > the operation, and then copy the result back out. And the data has to cross the PCI bus twice. That's why especially crypto acceletors targeted for SSL only handle the session setup. Kind regards -- Matthias Scheler http://scheler.de/~matthias/