Messages in this thread | | | Date | Mon, 27 Aug 2001 23:26:48 +0100 | From | Alex Bligh - linux-kernel <> | Subject | Re: [resent PATCH] Re: very slow parallel read performance |
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--On Monday, 27 August, 2001 11:38 PM +0200 Oliver.Neukum@lrz.uni-muenchen.de wrote:
> How do you measure cost of > replacement ?
See previous mail with cost of E. However, this is broken w.r.t. differential speed of consumption by tasks, and as Daniel points out, if the system works as he's designed/designing, the key will be sizing readahead sufficiently intelligently that drops happen infrequently anyway. If it works like TCP windows, it need not be particularly intelligent (very punitive, but infrequent), and we can do the tweaks of what packets to drop (cf RED in TCP) later.
My point w.r.t. penalizing fast consumers is that negative feedback in a control system isn't necessarily bad.
-- Alex Bligh - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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