Date: Thu, 6 Nov 1997 00:08:14 +0100 From: j@uriah.heep.sax.de (J Wunsch) To: hackers@FreeBSD.ORG Cc: joe@via.net (Joe McGuckin) Subject: Re: 'sys' is consuming %50 of cpu Message-ID: <19971106000814.LR12891@uriah.heep.sax.de> In-Reply-To: <199711052011.MAA27359@monk.via.net>; from Joe McGuckin on Nov 5, 1997 12:11:32 -0800 References: <199711052011.MAA27359@monk.via.net>
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As Joe McGuckin wrote: > What about turning off FAILSAFE? Would that make a noticable difference? Certainly not. AFAIK, it's by now still only the NCR driver that does use this option (and disables tagged command queuing). > Also, the ethernet card I'm using is a 100mb 3COM (VX driver). I notice that > the man page for the vx driver implies that this card is a poor performer. > Is that still true? Yep, that's most likely the reason. These cards do just PIO only (with our driver -- but even the 3Com manual admits that the cost of setting up a busmaster DMA transfer is often too high to be justified by the gain). > What card should I get? Most people will certainly recommend a card with a DEC chip (many vendors build it), or an Intel Etherexpress 100/B. I haven't used the latter myself, but i think wcarchive stands for itself. ;) -- 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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