Hiro Yoshioka <[email protected]> writes:
> Hi,
>
> The following patch does not use MMX regsiters so that we don't have
> to worry about save/restore the FPU/MMX states.
>
> What do you think?
Performance will probably be bad on K7 Athlons - those have a microcoded
movnti which is quite slow.
Also BTW I don't see any code anywhere that tests the CPUID bits,
so your code will fail spectacularly on a PII that didn't do SSE
(intel user copy used to be enabled on those)
One way to solve this might be to use different code using
alternative()
-Andi
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
[Index of Archives]
[Kernel Newbies]
[Netfilter]
[Bugtraq]
[Photo]
[Gimp]
[Yosemite News]
[MIPS Linux]
[ARM Linux]
[Linux Security]
[Linux RAID]
[Video 4 Linux]
[Linux for the blind]
| |
 |