В Sat, 17 Dec 2011 23:13:16 +0200 Andriy Gapon <a...@freebsd.org> пишет:
> on 17/12/2011 19:33 George Mitchell said the following: > > Summing up for the record, in my original test: > > 1. It doesn't matter whether X is running or not. > > 2. The problem is not limited to two or fewer CPUs. (It also > > happens for me on a six-CPU system.) > > 3. It doesn't require nCPU + 1 compute-bound processes, just nCPU. > > > > With nCPU compute-bound processes running, with SCHED_ULE, any other > > process that is interactive (which to me means frequently waiting > > for I/O) gets ABYSMAL performance -- over an order of magnitude > > worse than it gets with SCHED_4BSD under the same conditions. > > I definitely do not see anything like this. > Specifically: > - with X > - with 2 CPUs > - with nCPU and/or nCPU + 1 compute-bound processes > - with SCHED_ULE obviously :-) > I do not get "abysmal" performance for I/O active tasks. > > Perhaps there is something specific that you would want me to run and > measure. > Well, share your experiences - what to do, what would the others were fine with SCHED_ULE. ;) _______________________________________________ freebsd-stable@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to "freebsd-stable-unsubscr...@freebsd.org"
