Re: Ingo Molnar and Con Kolivas 2.6 scheduler patches

Re: Ingo Molnar and Con Kolivas 2.6 scheduler patches

Posted Aug 1, 2003 17:54 UTC (Fri) by graydon (subscriber, #5009)
In reply to: Re: Ingo Molnar and Con Kolivas 2.6 scheduler patches by beejaybee
Parent article: Re: Ingo Molnar and Con Kolivas 2.6 scheduler patches

I don't know about this particular implementation of soft realtime, but in theory it's not necessarily true that soft realtime would improve throughput-oriented benchmarks.

the soft realtime means when I sleep (or get preempted) I can get a precise idea of how long in real time it'll be until I run again. it doesn't mean I'll necessarily run for very long, nor frequently, just that there'll be some accuracy in the accounting. I need that accuracy to work out buffer sizes and decoding rates for a media player; I don't necessarily need high CPU throughput. xmms doesn't usually eat more than a fraction of a percent of my CPU.

if I'm given longer, but more random and imprecise timeslices, I might actually do better if I'm a long-lived, non-interactive process. precision might only be achieved at the expense of throughput.

---

(Log in to post comments)