Date: Thu, 16 Sep 2004 11:51:27 -0500 From: "Hall, Charles V" <Charles.Hall@Nav-International.com> To: 'Chuck Swiger' <cswiger@mac.com>, "Hall, Charles V" <Charles.Hall@Nav-International.com> Cc: "'freebsd-performance@freebsd.org'" <freebsd-performance@freebsd.org> Subject: RE: Compression performance Message-ID: <1188E2959811D511B35600508B63A90B0B2548A6@CANXSPN2.can.navistar.com>
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Thanks Chuck. It didn't occur to me about the integer arithmetic. I'm going to try gzip. -----Original Message----- From: Chuck Swiger [mailto:cswiger@mac.com] Sent: Thursday, September 16, 2004 11:20 AM To: Hall, Charles V Cc: 'freebsd-performance@freebsd.org' Subject: Re: Compression performance Hall, Charles V wrote: > I'm running 4.10 prod on an Intel P4 and I want to maximize compression > (i.e. /usr/bin/compress) performance--this seems to be my current > bottleneck. > > What steps can I take to accomplish this? (ZLIB, FPU support, anything > else?) Try using 'gzip --fast' instead of 'compress', assuming you are concerned with minimizing the CPU time required to compress files. These types of compression algorithms use integer operations almost exclusively; the FPU isn't used significantly. -- -Chuck CONFIDENTIALITY NOTICE This e-mail and any attachments, as well as any documents from a file server of International Truck and Engine Corporation or its affiliates, are intended for the addressee and may contain information that is privileged, confidential, proprietary, or otherwise protected by law. Any dissemination, distribution, or copying is prohibited. If a confidentiality or nondisclosure agreement exists between International and the recipient or the recipient's employer, this e-mail and any attachments hereto, as well as any documents from a file server of International Truck and Engine Corporation or its affiliates, this notice serves as marking as CONFIDENTIAL information of International Truck and Engine Corporation or its affiliates. If you have received this communication in error, please contact the original sender.
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