| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Date: Sun, 10 Dec 2006 22:41:09 +0100 From: Folkert van Heusden <folkert@...heusden.com> To: Mitchell Blank Jr <mitch@...oth.com> Cc: linux-kernel@...r.kernel.org Subject: Re: optimalisation for strlcpy (lib/string.c) > > Like the other patch (by that other person), I think it is faster to not > > do a strlen first. > Debatable. You've replaced a call to the highly-optimized memcpy function > with a byte-by-byte copy. It's probably a wash performance wise (have you > benchmarked?) and is certainly less clear. I tested it outside the kernel. The test source can be found here: http://www.vanheusden.com/misc/kernel-strlcpy-opt-test.c Folkert van Heusden -- Feeling generous? -> http://www.vanheusden.com/wishlist.php ---------------------------------------------------------------------- Phone: +31-6-41278122, PGP-key: 1F28D8AE, www.vanheusden.com - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists