Date: Tue, 03 Dec 1996 02:27:10 +0100 From: Terje Normann Marthinussen <Terje.N.Marthinussen@cc.uit.no> To: Hogan Whittall <hogan@mystic.sedona.net> Cc: freebsd-smp@freebsd.org Subject: Re: Still system slowdowns with certain apps Message-ID: <199612030127.CAA26717@slibo.cc.uit.no> In-Reply-To: Your message of "Sun, 01 Dec 1996 22:08:03 MET." <199612020508.WAA02550@mystic.sedona.net>
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>The new kernel works great and I've yet to have a program seg fault on
>me...but ever since I got the latest source on Thursday night I've
>experienced a major system slowdown whenever I compile something. The
>compile itself moves right along and gets done fast, but everything else
>on the system takes forever to respond until the compile is done. Before
>Thursday everything worked fine whencompiling and there were still seg
>faults...but this slowdown is new and I was hoping code I got today would
>fix it...but it's still there. Has anyone else experienced this or know
>of a fix?
>
Well, I have experienced the same slowdown. And it seems like things
are a lot worse than just a slowdown.
Thought I should run a couple of parallell dhrystones just for fun before
I went home to my bed. Never got that far. The system locked up the moment
I started the first and didn't allow me to do anything else until it had
finished running.
Then I just wrote:
main()
{
while(1);
}
It didn't start so well, but just when I typed ctrl-c, it froze the system.
Reset button only way out.
Tried again, seems like ctrl-c doesn't have anything to do with it at least.
But the second time I ran the program, things froze quite quickly.
Reset button next....
Seems like it's not as effective as dhrystone (well, that loop by it self
is probably not a very efficient cpu consumer, should be easy enough to
improve it), but when it locks, it locks well ;)
Terje Marthinussen
terjem@cc.uit.no
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