Date: Tue, 10 Jul 2001 16:07:15 -0700 (PDT) From: Bill Paul <wpaul@FreeBSD.org> To: cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/sys/dev/nge if_nge.c Message-ID: <200107102307.f6AN7F451961@freefall.freebsd.org>
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wpaul 2001/07/10 16:07:15 PDT
Modified files:
sys/dev/nge if_nge.c
Log:
Two optimizations:
1) Bite the bullet, and allow unaligned accesses without buffer copies
on the i386 platform. According to some tests run by Andrew Gallatin,
the buffer copy performance hit is greater than the unaligned access
performance hit (especially with jumbo frames). We still need to copy
everywhere else.
2) Enable interrupt moderation with a 100us timeout.
Submitted by: Andrew Gallatin <no longer at duke.edu>
MFC after: 1 week
Revision Changes Path
1.17 +37 -12 src/sys/dev/nge/if_nge.c
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