On Thu, May 03, 2007 at 10:50:15AM +0200, Ingo Molnar wrote: > - EEVDF concentrates on real-time (SCHED_RR-alike) workloads where they > know the length of work units
This is what I was thinking when I wrote earlier that EEVDF expects each task will specify "length of each new request" (http://lkml.org/lkml/2007/5/2/339). The other observation that I have of EEVDF is that it tries to be fair in the virtual time scale (each client will get 'wi' real units in 1 virtual unit), whereas sometimes fairness in real-time scale also matters? For ex: a multi-media app would call scheduler fair to it, it it recvs atleast 1 ms cpu time every 10 *real* milleseconds (frame-time). A rogue user (or workload) that does a fork bomb may skew this fairness for that multi-media app in real-time scale under EEVDF? -- Regards, vatsa - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
