Re: memset as memzero

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

 



22-09-2007, Bernd Eckenfels:
> In article <[email protected]> you wrote:
>> it doesn't add value.... memset with a constant 0 is just as fast
>> (since the compiler knows it's 0) than any wrapper around it, and the
>> syntax around it is otherwise the same.

linux/arch/x86_64/lib/memset.S isn't file for compile, but for
assembler, isn't it? Removing argument processing will have size effect.

> it would however allow easier changing if you need to add a page cleaning
> system (for example new architecture which has support for it).
[]

> On the other hand, is memset used for anything else than zero filling
> or redzone "filling"?

There are non zero ones (not sure what redzone is, though).

> Gruss
> Bernd
(Here are reply-to-all people, BTW)
_____

-
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