Call for testers: FPU changes

Kostik Belousov kostikbel at
Sat Nov 20 11:11:39 UTC 2010

On Sat, Nov 20, 2010 at 01:30:54AM -0500, Mike Tancsa wrote:
> On 11/16/2010 4:43 AM, Kostik Belousov wrote:
> > On Mon, Nov 15, 2010 at 10:42:50PM -0500, Mike Tancsa wrote:
> >> On 11/15/2010 4:13 PM, Kostik Belousov wrote:
> >>>
> >>> Patch is at
> >>>
> I did some more tests post commit today using the aesni kld taken
> directly from HEAD.  BTW, do you plan to MFC this as well ?
Sure, I will merge aesni(4), it was the only reason to work on the
kern_fpu in stable/8.

I want some pause between KPI and driver MFC, to ease the handling
of possible mismerge or fixing latent bugs (since stable has much
larger testing base then HEAD).
> Results at the bottom of
> It certainly makes a difference with geli. IPSEC and userland stuff, not
> so much. The CPU itself is crazy fast, so its hard to see a difference
> in things like ssh and even ipsec didnt yield any differences.  For ssh
> and userland stuff I guess once there is an aesni userland engine, this
> would probably help over the cryptodev interface.

Yes, the small blocks encoding/decoding has a large overhead of loop setup

Thank you.
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 196 bytes
Desc: not available
Url :

More information about the freebsd-stable mailing list