Here are the numbers Im getting when doing a simple 2MB copy: [src=0x4025b008][dst=0x4045c000][size=0x00200000] Testing memcpy... 2.417694 Testing fmemcpy... 1.156525
Has for using IwMMXt, I will need to run some test and let you know, but a quick asn, I think it should make it faster. Regards, Vince On Wed, 2009-03-18 at 12:13 +0100, Sven Neumann wrote: > Hi, > > On Wed, 2009-03-18 at 10:39 +0000, vince wrote: > > > Ive been working on trying to improve the performance of directfb 1.3.0 > > on the arm platform. The attached patch will replace the default libc > > memcpy with a faster implementation. Ive tested this patch using an > > AT91RM9200, but should work on other ARM targets. > > Very nice. Can you give an estimation of how much faster this optimized > memcpy() is compared to the default implementation? > > Do you see any potential in using the IwMMXt extension to speed up > DirectFB on the ARM platform? > > > Sven > > > _______________________________________________ > directfb-dev mailing list > directfb-dev@directfb.org > http://mail.directfb.org/cgi-bin/mailman/listinfo/directfb-dev > _______________________________________________ directfb-dev mailing list directfb-dev@directfb.org http://mail.directfb.org/cgi-bin/mailman/listinfo/directfb-dev
