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Article #66Re: To compress or not to compress?
From: Jerry Aguirre
Date: Tue, 26 Jan 1993 00:12
Date: Tue, 26 Jan 1993 00:12
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In article <1k18fcINN274@ftp.UU.NET> tom_limoncelli@Warren.MENTORG.COM (Tom Limoncelli) writes: >I expected it to be better to off-load the dirty work to the modem, >since my Sun3 is so slow. However, I found that the 2x bytes going >through the serial port slowed things down worse than running >"compress" on the Sun3. I have measured the CPU used and running compress actually saves cycles because later uuxqt and uucico have half the data to process. The time saved copying, checksumming and servicing interups is slightly more than that used by the compress program. That was for sending. On receive the savings should be even greater as receiving typically results in more interupts and uncompress uses less cycles than compress.
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Path: arc1-ca.pugleaf.net!sparky!uunet!not-for-mail From: jerry@olivea.ATC.Olivetti.Com (Jerry Aguirre) Newsgroups: news.admin.technical Subject: Re: To compress or not to compress? Date: 25 Jan 1993 19:12:41 -0500 Organization: Olivetti ATC; Cupertino CA, USA Lines: 15 Sender: zorch@ftp.UU.NET Approved: zorch@uunet.UU.NET Distribution: world Message-ID: <1k1vlpINNi7u@ftp.UU.NET> References: <1jvjuvINN8l6@ftp.UU.NET> <1k18fcINN274@ftp.UU.NET> NNTP-Posting-Host: ftp.uu.net