Path: csiph.com!usenet.pasdenom.info!news.albasani.net!.POSTED!not-for-mail From: Lew Newsgroups: comp.lang.java.programmer Subject: Re: Java processors Date: Sat, 07 Jul 2012 23:04:37 -0700 Organization: albasani.net Lines: 20 Message-ID: References: <5f101d00-4bc9-4750-939c-cd53605bfa0e@googlegroups.com> <4ff6318d$0$283$14726298@news.sunsite.dk> <9diev791cc84tsljqusgl14shpseba19o7@4ax.com> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Trace: news.albasani.net EcbzOS/xqQQPZn3bRUS/5EKcJm2kSXhbiH5F/a7tG/IbgAIl2bVCQ29/BynpQv/tyYCcyV8DpbVvBTja9z1dCtM3G4bOdYyOcJTacB0NCGe8APbOpsl3c424m4BuIkXt NNTP-Posting-Date: Sun, 8 Jul 2012 06:04:36 +0000 (UTC) Injection-Info: news.albasani.net; logging-data="R592NjyEaK0Yof1fjQ2Ab8zicz834cKQNM8tyXi41VkT/OVVo6W5xS/m3cC51B36vwOhMybUUpgfQCVb/jvPmGotswCG/bBo9AS78YQ0tILt/+69PPtRV2BQC0EPhwrR"; mail-complaints-to="abuse@albasani.net" User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:13.0) Gecko/20120615 Thunderbird/13.0.1 In-Reply-To: Cancel-Lock: sha1:BgigXy9zfBMLixc4eUF1IZ27HmU= Xref: csiph.com comp.lang.java.programmer:15870 Roedy Green wrote: >> That is just what JITs do. It is only after a while they have gathered >> some stats to they decide which classes to turn to machine code. The >> astounding thing is they stop the interpreter in mid flight executing >> a method, and replace it with machine code and restart it. That to me >> is far more impressive than walking on water. > > I wonder how long until hyperjits. They would burn a programmable > gate array to handle the innermost loops once they saw it was > justified. It would be optimised to the gate level. How would these guys "unburn" the gates - reprogram them to a different configuration? -- Lew Honi soit qui mal y pense. http://upload.wikimedia.org/wikipedia/commons/c/cf/Friz.jpg