Re: How to verify RX checksum offload??
Re: How to verify RX checksum offload??
- Subject: Re: How to verify RX checksum offload??
- From: Michael Smith <email@hidden>
- Date: Tue, 7 Jul 2009 19:42:44 -0700
On Jul 7, 2009, at 4:32 PM, Andrew Gallatin wrote: OSes use non-temporal (eg, uncached) copy routines for bulk data, or
they use the IOAT DMA engines (which are present on Apple machines,
but which so far seem to be ignored by MacOSX).
No copy is better than copying, and marshalling around a non-scalable hardware resource for small copies is almost always a lose vs. using the fastest DMA in the system (the LLC).
= Mike
-- True terror is to wake up one morning and discover that your high school class is running the country. -- Kurt Vonnegut
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