Path: csiph.com!x330-a1.tempe.blueboxinc.net!usenet.pasdenom.info!aioe.org!feeder.news-service.com!de-l.enfer-du-nord.net!feeder2.enfer-du-nord.net!talisker.lacave.net!lacave.net!not-for-mail From: Joel VanderWerf Newsgroups: comp.lang.ruby Subject: Re: how to make eval() faster? Date: Thu, 12 May 2011 00:22:55 -0500 Organization: Service de news de lacave.net Lines: 16 Message-ID: <4DCB6EAA.7010101@gmail.com> References: <0229c425b2bf06473387c4f47263eb93@ruby-forum.com> NNTP-Posting-Host: bristol.highgroove.com Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Trace: talisker.lacave.net 1305177797 6543 65.111.164.187 (12 May 2011 05:23:17 GMT) X-Complaints-To: abuse@lacave.net NNTP-Posting-Date: Thu, 12 May 2011 05:23:17 +0000 (UTC) In-Reply-To: <0229c425b2bf06473387c4f47263eb93@ruby-forum.com> X-Received-From: This message has been automatically forwarded from the ruby-talk mailing list by a gateway at comp.lang.ruby. If it is SPAM, it did not originate at comp.lang.ruby. Please report the original sender, and not us. Thanks! For more details about this gateway, please visit: http://blog.grayproductions.net/categories/the_gateway X-Mail-Count: 383028 X-Ml-Name: ruby-talk X-Rubymirror: Yes X-Ruby-Talk: <4DCB6EAA.7010101@gmail.com> Xref: x330-a1.tempe.blueboxinc.net comp.lang.ruby:4320 On 05/11/2011 09:53 PM, Zd Yu wrote: > I use eval() to dynamically calculate performance metrics. > > for example: > I have one configuration file that defines many performance metric > formulas, like IPC=instructions/cpu_cycles. > > I also have another data file that contains many data samples, and I > just call the eval() for every data sample. > > The problem is that I found eval() is really slow. is there a way to > make it faster? Can you eval your formulas into methods, and call the methods on the data samples?