Date: Wed, 7 Jan 2009 11:44:03 +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: <200901071144.n07Bi7k0066979@repoman.freebsd.org>
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mav 2009-01-07 11:44:03 UTC
FreeBSD src repository
Modified files: (Branch: RELENG_7)
sys/crypto/rc4 rc4.c
Log:
SVN rev 186857 on 2009-01-07 11:44:03Z by mav
MFC rev. 186179:
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
1.5.20.1 +5 -3 src/sys/crypto/rc4/rc4.c
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