Date: Mon, 10 Mar 1997 21:20:03 -0600 (CST) From: Tim Tsai <tim@futuresouth.com> To: dg@root.com Cc: hackers@freebsd.org Subject: Re: performance (was: 100 Mb/s cards) Message-ID: <199703110320.VAA04042@shell.futuresouth.com> In-Reply-To: <199703110024.QAA18376@root.com> from David Greenman at "Mar 10, 97 04:24:49 pm"
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> Regarding the difference in performance between the de and fxp drivers, > all I can say to this is that the code paths in the de driver are long and > complicated. It's entirely likely that they have to be this way for whatever > reason (I've not looked into improving it). The time reduction I measured with > the fxp driver was primarily %interrupt, but there is a reduction in system > time as well (too difficult to measure accuraterly on wcarchive, but perhaps > 5-10%). Perhaps this can be reflected in the supported hardware file, especially a note about 21140-AC based cards. I bought these cards based on the hardware list and also by comments that these cards are going to be supported soon (that was 3 months ago), well, that hasn't turned out to be the case. The least we can do is to prevent others from making the same mistake. Tim
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