There is a scratch on cog vm as part of the standard raspbian distro. Have you tried that?
> On Oct 18, 2016, at 09:27, Sven Van Caekenberghe <s...@stfx.eu> wrote: > > >> On 18 Oct 2016, at 14:29, Henrik Johansen <henrik.s.johan...@veloxit.no> >> wrote: >> >> >>> On 17 Oct 2016, at 8:43 , Sven Van Caekenberghe <s...@stfx.eu> wrote: >>> >>> Hi, >>> >>> Does a (faster) Cog VM for the Raspberry Pi actually exist ? >>> >>> I tried comparing the latest OpenSmalltalk VM with some older ones, only to >>> find that they are all equally fast (slow actually): >>> >>> pi@raspberrypi ~/Pharo $ ./pharo -nodisplay Pharo.image printVersion >>> [version] 5.0 #50581 >>> >>> "http://files.pharo.org/vm/pharoS/raspbian/latest.zip"; >>> >>> pi@raspberrypi ~/Pharo $ ./pharo -nodisplay Pharo.image eval '1 >>> tinyBenchmarks' >>> '167429692 bytecodes/sec; 11160247 sends/sec' >>> >>> "http://www.mirandabanda.org/files/Cog/VM/VM.r3427/cogspurlinuxhtARM-15.33.3427.tgz"; >>> >>> pi@raspberrypi ~/Pharo $ ./products/phcogspurlinuxhtRPi/pharo -nodisplay >>> Pharo.image eval '1 tinyBenchmarks' >>> '166992824 bytecodes/sec; 11337746 sends/sec' >>> >>> "https://bintray.com/opensmalltalk/vm/download_file?file_path=cog_linux32ARMv6_pharo.cog.spur_201610142319.tar.gz"; >>> >>> pi@raspberrypi ~/Pharo $ ./products/phcogspurlinuxhtRPi/pharo -nodisplay >>> Pharo.image eval '1 tinyBenchmarks' >>> '166992824 bytecodes/sec; 11337746 sends/sec' >>> >>> That is no significant difference on a RPi 3, at all. Is this normal ? Am I >>> missing something ? >>> >>> Thx, >>> >>> Sven >>> >>> PS: Just for reference, my Mac Book Pro is 10 times faster >>> >>> 1 tinyBenchmarks "'1323852617 bytecodes/sec; 174185794 sends/sec'" >> >> Are you 100% sure you benched different VM's? >> A stack VM (PharoS) getting the same results as a Spur VM >> (cog_linux32ARMv6_pharo.cog.spur_201610142319.tar.gz) is rather suspicious... >> >> At least on my Pi3, the spur Cog VM gives numbers around 250M >> bytecodes/160M sends.... >> which, while still "slow", is a decent bump in speed compared to what you're >> seeing. >> >> Cheers, >> Henry > > Hi Henry, > > That is exactly the kind of reference/experience I am looking for. > Could you please point me to the exact download URL you downloaded ? > I will happily test it ;-) > > Thx, > > Sven > > >
