Date: Tue, 16 Dec 2008 13:58:37 +0000 (UTC) From: Alexander Motin <mav@FreeBSD.org> To: cvs-src-old@freebsd.org Subject: cvs commit: src/sys/crypto/rc4 rc4.c Message-ID: <200812161358.mBGDwqYr069985@repoman.freebsd.org>
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mav 2008-12-16 13:58:37 UTC
FreeBSD src repository
Modified files:
sys/crypto/rc4 rc4.c
Log:
SVN rev 186179 on 2008-12-16 13:58:37Z by mav
Avoid 256 integer divisions per rc4_init() call. Replace it with using
separate index variable.
It gives more then double rc4_init() performance increase on tested i386 P4.
It also gives about 15% speedup to PPTP VPN with stateless MPPE encryption
(by ng_mppc) which calls rc4_init() for every packet.
Revision Changes Path
1.6 +5 -3 src/sys/crypto/rc4/rc4.c
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