Re: kernel + gcc 4.1 = several problems

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



> cmov is effectively the same cost as a compare and jump, in both cases
> the cpu needs to do a prediction, and on a mispredict, restart.

On a P4 it appears to be slower than compare/jump in most cases

-
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]     [Stuff]     [Gimp]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Video 4 Linux]     [Linux for the blind]     [Linux Resources]
  Powered by Linux