On Wed, Oct 05, 2011 at 08:09:03PM +0300, Fathi Boudra wrote: > libjpeg-turbo is available in Oneiric, using v62 emulation. The performance > improvements aren't significant at the moment.
What are we using to measure these improvements? What is the -turbo lib being used for? > Debian/Ubuntu P are going to move to libjpeg8 by default making > current package obsolete in the future. Note that when we asked Darrell about this he questioned the performance benefits of version 8. Mans probably knows more. At any rate, -turbo as an upstream is the only sane decision. Who is making the choice from the Ubuntu side -- and is there a bug open for this? > There's definitely some work coming to my mind: > - package libjpeg-turbo with v8 compatibility mode enabled > - test v8 emulation mode (it seems there's some functions marked as stubs, > need to be confirmed) > - run tjbench as part of LAVA tests to get comparisons (plain libjpeg vs ljt) > - benchmark on Android platform Agreed. And you could tack onto this optimizing any other routines that are not currently NEON optimized and worth it. > What's the MM WG plan for ljt? Is there some blueprints in MM WG backlog for > the items I mentioned? Same question here! -- Christian Robottom Reis, Engineering VP Brazil (GMT-3) | [+55] 16 9112 6430 | [+1] 612 216 4935 Linaro.org: Open Source Software for ARM SoCs _______________________________________________ linaro-dev mailing list linaro-dev@lists.linaro.org http://lists.linaro.org/mailman/listinfo/linaro-dev
