Fwd: Would you send me your hard float experiment results you presented in Budapest?

Steve,

I'd like you to meet Jim who did the initial hardfloat work. This email contains the results that Jim produced.

I believe that the conclusion was that skia and webkit may benefit, but that such benefits would impose an undue burden on Android's distribution model which tries to create libs that can run on as many architectures as possible.

-Zach

---------- Forwarded message ---------- From: Jim Huang jserv@0xlab.org Date: 7 August 2011 18:01 Subject: Re: Would you send me your hard float experiment results you presented in Budapest? To: Zach Pfeffer zach.pfeffer@linaro.org

2011/8/7 Zach Pfeffer zach.pfeffer@linaro.org:

Jim,

Thanks. Would it be possible to post them by the end of the day?

skia ->

Switch from VFP back to fixed scalar based calculation

Previous configuration enabled ARM VFP for scalar float, but VFP on    ARM11 is not as powerful as VFPv3 or NEON.

Reference benchmark:    Item            Fixed based     VFP-based    ------------    -----------     ---------    Draw Canvas     58.37 fps       58.40 fps    Draw Circle     37.48 fps       22.93 fps    Draw Circle2    17.14 fps       18.31 fps    Draw Rect       17.62 fps       20.69 fps    Draw Arc        24.79 fps       27.45 fps    Draw Image      19.08 fps       18.73 fps    Draw Text       29.22 fps       25.79 fps

Also, have you sync'd up with Mike? He wants to negotiate on your contract.

I sent mail to Mike already.  I don't know how to proceed.

Thanks, -jserv