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| From: | Vladimir 'φ-coder/phcoder' Serbinenko |
| Subject: | Re: Image scaling performance |
| Date: | Wed, 25 Feb 2015 21:48:27 +0100 |
| User-agent: | Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Icedove/31.4.0 |
On 25.02.2015 19:46, Michael Zimmermann wrote:
maintaining optimised asm routines is a lot of burden. You'll get more bugs than speedup. It's possible to use sdiv/udiv after checking CPU model properly but it doesn't cover 64-bit division and usable only on few cpus anyway.oh ok so linux's div/mod/... assembler is as slow/fast as grub's code? Linux uses armv5>= ifdefs. Maybe we could optimized things a little :)
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