Lawrence - An 800MHz mips board we test with gets this result:
Richards: 419 DeltaBlue: 733 Crypto: 996 RayTrace: 531 EarleyBoyer: 1531 RegExp: 214 Splay: 413 NavierStokes: 419 ---- Score (version 7): 556 A 900 MHz board with 512k L2 get this: Richards: 966 DeltaBlue: 1295 Crypto: 1222 RayTrace: 906 EarleyBoyer: 1567 RegExp: 225 Splay: 390 NavierStokes: 424 ---- Score (version 7): 730 V8 really needs 256k or greater L2 cache to do well on mips, and many older mips SoCs were implemented with small or no L2. The result Søren linked to was from a 24K board with no L2, and is substantially slower. The 74K cores will be faster than 24K or 34K cores at the same clock freq. I presume from your result that you do have FPU, as things will be quite slow without that, as we do not do the crankshaft optimizations in that case. You can see your core type from /proc/cpuinfo, and your cache size from the kernel startup logs using dmesg. Finally, it has been my experience that v8 will get substantially better results than JSC on the same hardware. Do you see different results than this? thanks, paul On May 30, 2012, at 5:13 AM, Lawrence wrote: > Hi guys, > > Thanks for all your information. I currently use JSC(JavaScriptCore) > in webkit. > According to the result provided by Søren, I think I should get a > reasonable score. > > Thanks, > Lawrence > > On May 30, 6:14 pm, Søren Gjesse <[email protected]> wrote: >> Hi, >> >> There are some older test results from using a Sigma 8654 board, 24Kc core >> running at 500 Mhz >> onhttps://github.com/paul99/v8m-rb/wiki/Test-suite-and-benchmark-result.... >> They show a V8 benchmark score of 164, so what you are seeing >> looks reasonable. What is you current JavaScript engine and how does it >> compare to V8? >> >> Regards, >> Søren >> >> >> >> >> >> >> >> On Wed, May 30, 2012 at 12:00 PM, Lawrence <[email protected]> wrote: >>> Hi Jokob, >> >>> Thanks for your reply and reminding me to switch building tool :) >> >>> I run the simulator on my linux PC so it should have a better >>> performance than your cell phone. >>> Just want to compare the performance between V8 and the other >>> javascript engine. >> >>> I have a MIPS hardware with 700MHz CPU clock. >>> As I talked, I want to replace my original javascript engine with >>> V8. >>> However, the result isn't my expectation. >> >>> Really want to know that's the normal result for MIPS case >>> happened on my side. >> >>> Regards, >> >>> On May 30, 4:46 pm, Jakob Kummerow <[email protected]> wrote: >>>> You should use GYP/make instead of SCons to build V8 (call "make >>>> dependencies" once, then simply "make mips.release -j8"), but that won't >>>> change performance numbers. >> >>>> You seem to be running this on a pretty fast machine; for the MIPS >>>> simulator I get a score of only 45.6 on my box. Simulators are slow, >>> that's >>>> expected. >> >>>> I don't have any MIPS hardware. The closest I have is a Nexus S which >>>> scores roughly 900. Would you expect your MIPS hardware to be about one >>>> third as fast as a 1GHz ARM A8? >> >>>> On Wed, May 30, 2012 at 5:43 AM, Lawrence <[email protected]> >>> wrote: >>>>> I build Version 3.11.6 for little-endian MIPS with command : scons >>>>> arch=mips library=static sample=shell mode=release -j8 . Also setup CC >>>>> CXX AR LD RANLIB CXXFLAGS well. >> >>>>> And got the following result: >>>>> Richards: 542 >>>>> DeltaBlue: 343 >>>>> Crypto: 593 >>>>> RayTrace: 211 >>>>> EarleyBoyer: 979 >>>>> RegExp: 120 >>>>> Splay: 293 >>>>> NavierStokes: 268 >>>>> ---- >>>>> Score (version 7): 348 >> >>>>> Besides, I also built mips simulator and got the following result >>>>> Richards: 65.2 >>>>> DeltaBlue: 94.6 >>>>> Crypto: 49.3 >>>>> RayTrace: 123 >>>>> EarleyBoyer: 133 >>>>> RegExp: 33.2 >>>>> Splay: 243 >>>>> NavierStokes: 37.1 >>>>> ---- >>>>> Score (version 7): 78.8 >> >>>>> Could anyone get good performance on MIPS platform or just I did >>>>> something wrong ? >> >>>>> Regards, >>>>> Lawrence >> >>> -- >>> v8-users mailing list >>> [email protected] >>> http://groups.google.com/group/v8-users > > -- > v8-users mailing list > [email protected] > http://groups.google.com/group/v8-users > -- v8-users mailing list [email protected] http://groups.google.com/group/v8-users
