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Wednesday, January 23, 2008

Performance test of the microB patches

I have tested the microB patches based on Mozilla1.9(Firefox3 alpha6 pre.)

- The microB package contains more 200 patches and several patch sets.
- It is released with Firefox3 alpha6 pre. now.

Two kinds of test case are used.
- Tinderbox DHTML Test
- CSS Rendering

Target Device : PAX320, RAM 256MB

And I got the following results on TestGtkEmbed in Mozilla.

* Tinderbox DHTML Test:
The microB patched Mozilla is 2.2 % faster than Mozilla1.9 (Firefox alpah6 pre).

* CSS Rendering:
The microB patched Mozlla is 5.6 % slower (?) than Mozilla1.9

I applied the default patch set of microB to Mozilla1.9

I can't understand why the microB patches is slow in the case of CSS Rendering.

The following items are performance related patches in the default patch set.

#Performance improvements
perf_addon/attachment.cgi?id=246204.diff
perf_addon/new_cached_scale.gtk2.diff
perf_addon/bug54205.diff
perf_addon/540_BUG54340_js_malloc.diff
perf_addon/545_BUG54340_findkeyword_inline.diff
perf_addon/550_BUG54340_optimization_options.diff
perf_addon/thread_wait_block.diff
perf_addon/spidermonkey_alloc.diff
perf_addon/605_css_erros_parsing_disable.diff

There are also some patches on Cairo.

I did not go through what each patch means.

Looking forward to your opinion & thought about the results.

Thanks


p.s. There is the same article on Mozilla newsgroup.

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