Date: Wed, 06 Jul 2011 11:04:06 +0530 From: Manish Jain <invalid.pointer@gmail.com> To: Dan Nelson <dnelson@allantgroup.com> Cc: freebsd-questions@freebsd.org Subject: Re: PID 11 using 400% CPU Message-ID: <4E13F3CE.8000703@gmail.com> In-Reply-To: <20110705142004.GB6611@dan.emsphone.com> References: <4E0BF66F.9080800@gmail.com> <20110630045559.GD44024@dan.emsphone.com> <CAEL0NofKym1WZ-wodQEXT7Dg6gO0FNuozVz=y%2BnSruh1O5qtQQ@mail.gmail.com> <20110705142004.GB6611@dan.emsphone.com>
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Hello Dan,
I was having multiple problems with my x86 installation, apart from
the disc spinning continuously. Despite tuning many sysctl parameters,
X clients would not open for non-root users ("max number of clients
reached"); for root, they would open, but after about 30 minutes of
playing xboard (gnuchess), the computer would simply shut down
(without even a proper shut down sequence; worse that DOS BSOD - power
off in a flash); while up, the speed and performance of the system was
abysmal.
I therefore yesterday downloaded the iso for amd64, which is the
architecture of my system. I am going to install it and try it out
over the weekend. Hope things will be better this time around.
Thanks for all your suggestions and advice though.
Regards
Manish Jain
[1]invalid.pointer@gmail.com
On 05-Jul-11 19:50, Dan Nelson wrote:
In the last episode (Jul 05), manish jain said:
On 30 June 2011 10:26, Dan Nelson [2]<dnelson@allantgroup.com> wrote:
In the last episode (Jun 30), Manish Jain said:
I have a strange problem with my 8.1 box. After booting, the hard
disk goes into a full-speed never-ending spin.
To see what disk I/O is being done, try running "ktrace -dip 0 ; sleep
10 ; ktrace -C", to capture all syscalls done on the entire system (pid
0 plus children) for 10 seconds, then run "kdump -m64 | less" to view
the results. Look for read or write calls.
It looks like ppp is doing a lot of read and write operations, which keeps
the disk spinning. How do I set this right ? Is there something wrong
with my ppp.conf (see below) ?
I bet that if you ran fstat or lsof on the ppp process, all the writes are
actually to your serial device or a tun device, not to disk. ppp is
unlikely to cause much disk I/O. You'll have to filter out the ppp process
and check your kdump output again.
References
1. mailto:invalid.pointer@gmail.com
2. mailto:dnelson@allantgroup.com
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