Date: Tue, 1 Apr 1997 08:17:33 +0200 From: j@uriah.heep.sax.de (J Wunsch) To: hackers@freebsd.org Subject: Re: 2.2R real slow with 8 meg Message-ID: <19970401081733.BQ30598@uriah.heep.sax.de> In-Reply-To: <3.0.32.19970331185559.00b6b100@etinc.com>; from dennis on Mar 31, 1997 18:56:02 -0500 References: <3.0.32.19970331185559.00b6b100@etinc.com>
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As dennis wrote: > >Your experience is surprising. A friend of mine recently changed to > >3.0-some-time-ago-almost-2.2, from a 2.1R system. He reported me that > >the system now feels faster, this is with 8 MB RAM and X11. > Hmmm...is more swap required, or maybe the generic kernel has > more pithy settings than before...I haven't really examined it yet? > > Maybe its the IDE driver? Ah, that might be the culprit. No, not really the driver, but it's quite possible that 2.2 is more aggressively paging than 2.1 did. With a PIO-only disk subsystem, it's imaginable that this results in a loss of performance. With a decent (busmaster DMA) disk subsystem, it results in a gain of performance however since there's always RAM available when needed. -- cheers, J"org joerg_wunsch@uriah.heep.sax.de -- http://www.sax.de/~joerg/ -- NIC: JW11-RIPE Never trust an operating system you don't have sources for. ;-)
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