Messages in this thread | | | From | "Adam J. Richter" <> | Date | Mon, 17 Aug 1998 09:12:56 -0700 | Subject | Re: Winmodem support, some performance tradeoff estimates |
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Thomas Sailer wrote: >Of course you slow down the system, because there will be a task that >consumes >25% of the CPU. But then again "most" users won't notice a decrease in >interactive response :-) (you can simulate that if you want, just write >a SCHED_FIFO >task that consumes 25% of the CPU).
It is misleading to say that soft modem support would consume "25% of the CPU" without saying what kind of CPU. You should say that it would consume approximately some amount of MIPS. For example, if your code consumes 25% of the CPU on a 100MHz Pentium, then it consumes about 3.7% of the CPU on a 450MHz Pentium 2.
Anyhow, according to linker@ml.org, at least the Rockwell based Winmodems have significantly more hardware than a truely soft modem, so it should not be anywhere near the CPU load of a truely soft modem.
Adam J. Richter __ ______________ 4880 Stevens Creek Blvd, Suite 205 adam@yggdrasil.com \ / San Jose, California 95129-1034 +1 408 261-6630 | g g d r a s i l United States of America fax +1 408 261-6631 "Free Software For The Rest Of Us."
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