12 May 2009 rlougher   » (Master)

JamVM on Beagle Board

I've been intending to get a Beagle Board for quite a while now, to replace a Neo1973 as the development platform for JamVM on ARM. The Neo has an ARM920T core, and I've been particularly wanting to test JamVMs code-copying JIT on a more modern implementation (the Beagle Board has a Cortex A8). But I've been waiting for the Rev C board, as this has working EHCI USB host, and 256MB RAM (previous revisions had 128MB). The board arrived 2 weeks ago, but I haven't had much time to set it up until now...

So far, the results are quite encouraging. SciMark 2.0 shows a 55% speed improvement:

While jBYTEmark shows an 82% improvement on Integer tests:

The option -Xcodestats prints out the size of the JIT code-cache when the VM exits. This shows 77K was used after running SciMark 2.0, and 178K after jBYTEmark. This is using the code-profiling introduced in JamVM 1.5.2.

Syndicated 2009-05-11 21:55:00 (Updated 2009-05-12 00:53:32) from Robert Lougher

Latest blog entries     Older blog entries

New Advogato Features

New HTML Parser: The long-awaited libxml2 based HTML parser code is live. It needs further work but already handles most markup better than the original parser.

Keep up with the latest Advogato features by reading the Advogato status blog.

If you're a C programmer with some spare time, take a look at the mod_virgule project page and help us with one of the tasks on the ToDo list!