Date: Wed, 29 Oct 2003 13:25:56 -0500 From: Bill Moran <wmoran@potentialtech.com> To: chat@freebsd.org Subject: How much better are 64 but platforms Message-ID: <3FA00634.6000002@potentialtech.com>
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Hey, I've never used FreeBSD on a 64 bit platform, and with a recent project I've got a client asking me, "How much faster would this run if we put it on an Itanium." So, in the future, I'll probably be getting a 64 bit machine to try this out on. But it got me thinking, what should I _expect_ to see in improvement? This application is mostly comparing strings, there are no 64 bit integers or floats to be obvious bottlenecks on a 32 bit platform, so (lacking actual experience) how much can I expect the application to speed up if I move it to a 64 bit platform? I understand that nobody can answer this question exactly, but I'm curious to hear people's experiences. I mean, if you just took FreeBSD (for example) by itself and moved it from 32 - 64 bit, how much faster is it (assuming the same mhz processor, if possible). How about PostgreSQL (which is the database server we're using). In general, how much faster is C compiled on a 64 bit platform? Basically, all this app does is pull a crapload of database records into RAM, do a whole bunch of string comparisons, generate some percentages, and write significant results back to another database table. Should I expect 64 bit to be a big improvement? Any thoughts or experience would be welcome. Thanks in advance. -- Bill Moran Potential Technologies http://www.potentialtech.com
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