On 07/07/11 09:04, Andriy Gapon wrote:
on 07/07/2011 06:11 Steve Kargl said the following:
Unfortunately, I have neither the brain capacity and time nor
the money to fix the issue. To solve OP's problem in the
short, the simplest solution may be to switch to 4BSD. Let's
face, ULE is not a silver bullet.
I think that piling up different problems into a single discussion, even if they
involve a common component (to a certain degree), is not going to help anybody.
If I have read this thread correctly (and taking the subject line as a witness)
the OP had a problem with heavy I/O activity screwing up interactivity. I think
that it's not the same problem as sub-optimal performance of heavy CPU-bound
load, which is what you reported if I am not mistaken.
This is quibbling. On heavy loads on networ, disk et cetera, isn't there
always and also
a CPU bound load?
Whenever this problem came up, it was brought down by force.
Yes, I reported due to the obvious fact that this essential problem
involves usability of several workstations.
It get more obvious when FreeBSD is used with a GUI. But I also
realized, as I reported(!), problems on a headless
server, even with several tunings, performed slowly and with increasing
numbers over time as recommended here
(for instance, kern.sched.preempt_thresh=224 or up to
kern.sched.preempt_thresh=512, with little effect).
Where, if not here, should such problems be discussed? If we open for
each dedicated micro-problem a separate thread,
we would never gather that many problems which seem to be related to one
single well known 'sweet spot'.
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