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Article #480680

Re: robimy benchmark ;)

#480680
From: Piotr B.
Date: Thu, 18 Nov 2010 16:50
35 lines
2677 bytes
Tomasz Chmielewski formulated the question :
> On 18.11.2010 16:44, Piotr B. (pb2004) wrote:
>> Tomasz Chmielewski presented the following explanation :
>>> http://digitizor.com/2010/11/17/internet-explorer-9-caught-cheating-in-sunspider-benchmark/
>>>
>>>
>>> While Mozilla engineer Rob Sayre was benchmarking Firefox 4 with
>>> different browsers, he noticed something with Internet Explorer 9 –
>>> Internet Explorer 9 was around 10 times faster than the other browsers
>>> in a particular test (math-cordic) in the SunSpider benchmark. While
>>> Chrome and Opera scored took around 10ms in that test, Internet
>>> Explorer 9 finished it it in about 1ms.
>>>
>>> Sayre investigated further by modifying the code for that test used in
>>> the SunSpider Benchmark a bit. He made two variations of the test
>>> little bits of codes to the original – one by adding a “true” and
>>> another by adding a “return”. As these “true” and “return” in this
>>> context does not do anything there should be minimal impact.
>>>
>>> The result though is startling – Internet Explorer 9 took around 20
>>> times longer with the two new tests compared with the original. While
>>> the original took only 1ms in my laptop, the other two took around
>>> 20ms each.
>>
>> Kolejny który nie słyszał o dead code elimination.
>
> Ba, rowniez madrzejsi robiacy analize tego nie slyszeli o dead code 
> elimination robiacym eliminacje skomplikowanego kodu, a wywalajacym sie na 
> banalnej modyfikacji tegoz.

To już wyszła finalna wersja IE9, że oczekujesz że wszystkie błędy zostały 
naprawione?

-- 
Piotr Borkowski
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Path: mbox-mo1.pugleaf.net!news-archive.icm.edu.pl!news.icm.edu.pl!news.task.gda.pl!news.mm.pl!not-for-mail
From: Piotr B. (pb2004) <p_borkowski@nospamgazeta.pl>
Newsgroups: pl.comp.os.advocacy
Subject: Re: robimy benchmark ;)
Date: Thu, 18 Nov 2010 17:50:56 +0100
Organization: Multimedia Polska SA
Lines: 37
Message-ID: <mn.942e7dab78eede86.110465@pb2004.pl>
References: <8kinliFfe5U1@mid.uni-berlin.de> <mn.93ec7dabc2333b33.110465@pb2004.pl> <8kl1n0Fj65U1@mid.uni-berlin.de>
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