On Fri, Aug 20, 2010 at 06:53:44AM +0200, Sander wrote:
> Chris Mason wrote (ao):
> > On Fri, Aug 06, 2010 at 01:55:21PM +0200, Jens Axboe wrote:
> > > Also, I didn't see Chris mention this, but if you have a newer intel box
> > > you can use hw accellerated crc32c instead. For some reason my test box
> > > always loads crc32c and not crc32c-intel, so I need to do that manually.
> > > That helps a lot with higher transfer rates. You can check support for
> > > hw crc32c by checking for the 'sse4_2' flag in /proc/cpuinfo.
> > 
> > Yeah, the HW assisted crc does make a huge difference.
> The above says "newer intel box". I did some googling and it seems to
> mean really Intel CPUs only, not AMD, correct?
> Is there a way to get hardware support for crc32c on ARM based systems?

So far I only know of the intel sse4.2 systems that support this.


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