Personal info for willembryce

This person is currently certified at Master level.

Name: Bryce Kampjes

Homepage: www.kampjes.demon.co.uk

Notes: Most (all) of my Squeaking is going into a little compiler called Exupery. Exupery is almost useful now, if you're running Squeak on an x86 Linux box feel free to try it. With luck the next release should be generally useful.

This person is:

Recent diary entries for willembryce:
RSS

3 Mar 2008  »

London Smalltalk Meeting this Saturday

The meeting is this Saturday. There's a good list of people attending, if you'd like to attend please add your name to the wiki page so building security will know to let you in.

If there's anything you'd like to present, please feel free to add your name to the list.

The wiki page is here.

Discussion and our monthly meetings are organised on the UK Smalltalk mailing list here.

18 Feb 2008  »

Reminder London Smalltalk Meeting Saturday 8th of March

There will be a Smalltalk meeting in London on Saturday the 8th of March. We plan to start at 10am with the morning focussed on beginners. Feel free to show up later, normally the afternoon will start around 1pm.

There's already about 20 people signed up on the wiki page, please add your name if you're interested in coming or presenting soemthing so building security will know to let you in.

RSPV required as it's being hosted in corporate offices.

Discussion or suggestions is best placed on the UK Smalltalk mailing list.

27 Jan 2008  »

Smalltalk UK meeting on Saturday 8th March

We're organising a Smalltalk event in London. This is going to be on a Saturday afternoon, we'll probably head to a pub afterwards. We'll aim to get a room with a projector.

Details are here. RSPV required as it's being hosted in corporate offices. Please add your name if you're interested in either attending or presenting.

Discussion will be on the UK Smalltalk mailing list.

3 Jan 2008  »

The next Saturday London Smalltalk Gathering

We're thinking about organising the next Saturday London Smalltalk gathering on the 8th of March. If there's any good reason to pick a better date please tell us before we start booking rooms. We'll aim to have a room with a projector so people can give talks. As always we'll probably migrate to a pub for dinner then a few beers afterwards

Discussion will be on the UK Smalltalk mailing list.

17 Dec 2007  »

Thinking about Exupery 0.14

The primary goal for the next releases will be making the following benchmarks more compelling. I've added a compile time benchmark as there are a few performance bugs in the compiler that should be removed. 

  arithmaticLoopBenchmark 1396 compiled  128 ratio: 10.906
  bytecodeBenchmark       2111 compiled  460 ratio:  4.589
  sendBenchmark           1637 compiled  668 ratio:  2.451
  doLoopsBenchmark        1081 compiled  715 ratio:  1.512
  pointCreation           1245 compiled 1317 ratio:  0.945
  largeExplorers           728 compiled  715 ratio:  1.018
  compilerBenchmark        483 compiled  489 ratio:  0.988
  Cumulative Time         1125 compiled  537 ratio   2.093


   ExuperyBenchmarks>>arithmeticLoop                249ms
  SmallInteger>>benchmark                         1112ms
  InstructionStream>>interpretExtension:in:for: 113460ms
  Average                                         3155.360

First, I'll get the register allocator to allocate each section of method separately. After that, I'll probably do some work on further optimising the register allocator but I might work on improving the generated native code.

Register allocating each section separately will both allow for better and faster allocation. It will make it easy to avoid dealing with registers and interference from other sections of the code and will reduce the size of the problem. Colouring register allocation written well should be on average n log n time but the performance bugs will raise that to probably n^2.

It's possible that just allocating each section of the method separately will be enough to bring allocation down to a reasonable time. It should definitely help for the larger methods but is unlikely to do anything for the arithmaticLoop and will only help the bytecode benchmark slightly. Compiling quicker will make it easier to run more extensive tests.

80 older entries...

This person has certified others as follows:

Others have certified this person as follows:

[ Certification disabled because you're not logged in. ]

[ Home | Articles | Login/Account | People | Projects ]