Things have changed a bit since then, so I doubt that "proof" has any relevance. All polling does , in the context of device polling, is make networking low-priority. You are adding latency to save CPU cycles. You could argue that higher latency is lower performance. Interrupt hold offs are a much better way to reduce interrupts without poisoning your system with extra overhead.
-----Original Message----- From: Anthony Atkielski <[EMAIL PROTECTED]> To: freebsd-questions@freebsd.org Sent: Mon, 28 Mar 2005 16:49:20 +0200 Subject: Re: hyper threading.
Boris Spirialitious writes:
If you understood what I said, then you wouldn't say what you said, because its just plain wrong.
I've written code that proves it right. Someone once told me that a 80286 couldn't handle ordinary terminal communications at speeds of 38400 bps. I proved that it could, but the comm program I wrote to do so used polling rather than interrupts to accomplish it. It was impossible to handle such high speeds with interrupt-driven I/O.
-- Anthony
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