Jitter 3.1 available for PowerMac (MacOS and Linux)
Doug Way
dway at riskmetrics.com
Sun Nov 12 06:42:31 UTC 2000
Jitter seems to work just fine on my G4 with Mac OS 9.0.4, at least.
(Although I did have a tough time trying to download it with Netscape...
I ended up downloading with Internet Explorer and then I had to use
ResEdit to change the ID's of the image before it would work.)
Anyway, it's pretty cool! I mostly just played around with longish UI
operations, which were anywhere from 1.5 to 2.5 as fast when using
Jitter comparied with the regular 2.8 VM/image. (For example expanding
a 5000-item collection in an object explorer.) The 1.5 to 2.5 mix
probably depended on how much of the task was
message-send/bytecode-bound versus primitive-bound...
The only behavior difference I've noticed so far is that sometimes it
doesn't redraw its display when switching from a different Mac
application to Squeak. It's worth an inconvenience or two to see the
speed of Squeak instantly double. :)
- Doug Way
dway at riskmetrics.com
Karl Ramberg wrote:
>
> Well... I get a stdout :
>
> out of memory
>
> classes: 266 bkts, 5320 byts, 272 ents, 1.0 ents/bkt, 6.5% coverage
> selectors: 759 bkts, 15180 byts, 836 ents, 1.1 ents/bkt, 18.5% coverage
> methods: 957 bkts, 19140 byts, 1103 ents, 1.2 ents/bkt, 23.4% coverage
> mapCache: 1 blks, 77884 byts, 0 lost, 61 byts/ent, 0.0% fragment
> codeCache: 7 blks, 798248 byts, 36184 lost, 676 byts/ent, 4.6% fragment
> iclCache: 1 blks, 2232 byts, 0 lost, 8 byts/ent, 0.0% fragment
> memory: 88816 heap, 878364 cached (227088+461208 = 22.8 bytes/bytecode)
> GC: 0 major, 0 minor, 0.00% 0.00% 0.00% CPU; i-cache: 0.00%
> 0.00 NAN(000)
> traps: 0 SI/sec (avg 0), 0 TF (avg 0); trans: 0 (0/sec)
>
> morituri te salutant
>
> And thats it. (Trying to change the memory allocation given j3 gives a
> strange message about not being able to change the min value to higher
> than max etc.)
> This is on mac os 8.6 swedish on a 8500 /150, 604 ppc
>
> Karl
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