On 11/18/10 10:55 AM, Lucius Windschuh wrote: > 2010/11/18 Andriy Gapon<avg_at_freebsd.org>: >> [Grouping of processes into TTY groups] >> >> Well, I think that those improvements apply only to a very specific usage pattern >> and are greatly over-hyped. > But there are serious issue if you use FreeBSD as a desktop OS with > SMP and SCHED_ULE, or? > Because currently, my machine is barely usable if a compile job with > parallelism is running. Movies stutter, Firefox hangs. And even nice > -n 20 doesn't do the job in every case, as +20 seems not to be the > idle priority anymore?!? > And using "idprio 1 $cmd" as a workaround is, well, a kludge. > I am not sure if TTY grouping is the right solution, if you look at > potentially CPU-intensive GUI applications that all run on the same > TTY (or no TTY at all? Same problem). > Maybe, we could simply enhance the algorithm that decides if a task is > interactive? That would also improve the described situation. tty grouping is a variant of what we used to have at one stage which is a "kernel schedulable entity group".. KSEG the idea is that all items in a group share some characteristic and some amount of resources. We stripped the KSEG out of the picture because it really complicated the picture. > Regards, > > Lucius > _______________________________________________ > freebsd-current_at_freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-current > To unsubscribe, send any mail to "freebsd-current-unsubscribe_at_freebsd.org" >Received on Thu Nov 18 2010 - 19:20:23 UTC
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