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Mozilla Blog
Perspectives on the internet from Mozilla
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Visit blog.mozilla.com → RSS feedOn Hacker News Apr 2009 – Feb 2012
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MemShrink progress report, week 23
The only significant MemShrink-related change that landed this week was that David Anderson removed TraceMonkey , the tracing JIT compiler. In fact, TraceMonkey was disabled a while ago, so the effects on code size and memory consumption of its removal have been felt since then. But it feels more real now that the…
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Faster JavaScript parsing
Over the past year or so I’ve almost doubled the speed of SpiderMonkey’s JavaScript parser. I did this by speeding up both the scanner ( bug 564369 , bug 584595 , bug 588648 , bug 639420 , bug 645598 ) and the parser ( bug 637549 ). I used patch stacks in several of those bugs, and so in those six bugs I actually…
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SpiderMonkey is on a diet
One thing I’ve learnt while working for Mozilla is that a web browser can be characterized as a JavaScript execution environment that happens to have some multimedia capabilities. In particular, if you look at Firefox’s about:memory page, the JS engine is very often the component responsible for consuming the most…
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