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Apple built the Sunspider benchmarks in 2007, and along with Mozilla, they made dramatic real world performance improvements before Chrome was even publicly ann
by jashmatthews 7y ago
Apple built the Sunspider benchmarks in 2007, and along with Mozilla, they made dramatic real world performance improvements before Chrome was even publicly announced.
https://webkit.org/blog/152/announcing-sunspider-09/ https://webkit.org/blog/152/announcing-sunspider-09/
https://webkit.org/blog/214/introducing-squirrelfish-extreme/ https://webkit.org/blog/214/introducing-squirrelfish-extreme...
Chrome + V8 was already behind in real world performance, not ahead!
http://www.satine.org/archives/2008/09/19/squirrelfish-extreme-fastest-javascript-engine-yet/ http://www.satine.org/archives/2008/09/19/squirrelfish-extre...
Macromedia (later Adobe) funded a whole bunch of JIT research as the Tamarin Tracing project, which was shared with Firefox as TraceMonkey. The NanoJIT assembly backend was actually shared code.
- kragen 7y agoI guess you're right that TraceMonkey was announced before Chrome was released on 2007-09-02, one day after its inadvertent public announcement. TraceMonkey was announced, though incomplete, more than a week earlier, 2008-08-23: https://brendaneich.com/2008/08/tracemonkey-javascript-lightspeed/ https://brendaneich.com/2008/08/tracemonkey-javascript-light.... SFX, however, was announced later, 2008-09-18. I don't want to piss too much on SunSpider, but unsurprisingly V8 did better on V8’s benchmarks, while SFX and TM did better on SunSpider, once they were eventually released. That's because V8 was written to do well on its benchmarks, presumably, not because the benchmarks were rigged. Certainly they were in accordance with my experience at the time. When Chrome was released, V8 was way ahead of the other browser JS engines at JS performance, partly because it had the first JS JIT. But the other browsers took a year or two to catch up, which they had because it also took websites a few years to move most of their functionality into browser JS. I don't know why you keep emphasizing this “real-world” thing. Are you saying you think nbody and fannkuch are especially realistic benchmarks? You're right though that Tamarin was a JS engine, not just an AS engine. We regret the error.
- jashmatthews 7y agoThe point is Mozilla, Apple and Adobe did enormous work on JS before Chrome was released. nbody and Fannkuch are meaningless for real world performance on a client side JS app. V8s benchmarks were widely considered to be unrepresentative of what browsers actually do. Sunspider and derivatives were the most realistic tests at the time and Chrome wasn’t a dramatic improvement. https://johnresig.com/blog/javascript-performance-rundown/ https://johnresig.com/blog/javascript-performance-rundown/ Chrome’s marketing was incredibly successful in getting more people to use a browser better than IE but it didn’t have a dramatic improvement over FF or Safari.
- kragen 7y ago> The point is Mozilla, Apple and Adobe did enormous work on JS before Chrome was released. That's true relative to the work they had done on, for example, Gopher support, but it's not true relative to the work they did after Chrome was released. As I said, JS performance from 1995 to 2008 hadn't increased by even a factor of 4; then Chrome was released in 2008 and it immediately increased by a factor of 4, more than it had increased in the entire previous 13-year history of JS. It's true that there existed other optimization efforts. But they weren't successful, probably because not nearly enough effort was devoted to them. Tamarin Tracing/TraceMonkey was eventually discarded and is not part of SpiderMonkey today, although a different JIT strategy is. (LuaJIT uses the tracing-JIT strategy very successfully, though.) > nbody and Fannkuch are meaningless for real world performance on a client side JS app. V8s benchmarks were widely considered to be unrepresentative of what browsers actually do. Sunspider and derivatives were the most realistic tests I mentioned nbody and fannkuch because they are in SunSpider, so it seems that you are contradicting yourself in addition to, as demonstrated previously, mixing up the historical sequence of how things happened. I had just written a parser generator and an experimental functional language that compiled to JS when Chrome came out, and the performance improvements I saw were in line with the Chrome benchmarks. My experience is not part of Google's marketing.
- jashmatthews 7y agoSafari perf had already improved more than 4x with the move from AST Interpretation to a register based bytecode VM with SquirrelFish. This happened before Chrome. I’m working on a tracing JIT for Ruby at the moment partially inspired by LuaJIT. Fingers crossed it’ll be published research this year! Right, but the Sunspider benchmark also tested strings, regex and date manipulation. V8s original benchmarks didn’t. Performance on stuff like a parser generator was way up, but it didn’t run jQuery based Ajax sites any faster.
- kragen 7y agoBest of luck with that! I look forward to seeing it.
- kragen 7y ago> before Chrome was released on 2007-09-02 This should read, "before Chrome was released on 2008-09-02".