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. -chris -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html