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. -- Andriy Gapon _______________________________________________ [email protected] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to "[email protected]"
