From: Marcin Kowalski <kowalski@datrix.co.za>
To: jjasen1@umbc.edu
Cc: hahn@coffee.psychology.mcmaster.ca, tomlins@cam.org,
linux-kernel@vger.kernel.org
Subject: Re: memory usage - continued - iCache/Dentry cacheing bug???
Date: Wed, 11 Apr 2001 16:50:17 +0200 [thread overview]
Message-ID: <0104111650170J.25951@webman> (raw)
In-Reply-To: <Pine.SGI.4.31L.02.0104111030180.3516411-100000@irix2.gl.umbc.e>
In-Reply-To: <Pine.SGI.4.31L.02.0104111030180.3516411-100000@irix2.gl.umbc.e>
Further fun...
Now after bouncing the swap and clearing out memory I decided to run the
test.pl script again to suck up some more memory...
Box dies, pretty much for 15 seconds, when it comes back load is at 8.0
kernel syslog messages..::
----
Apr 11 16:37:13 mkdexii kernel: sym53c896-1-<3,0>: ordered tag forced.
Apr 11 16:37:43 mkdexii last message repeated 2 times
-----
with 181M of Swap in use and 252 mb of Physical RAM.... this is getting
really tricky...
Now to bounce the swap again.... well well IO lock up again, hmmm. sym53c896
driver--- load went up to 12 and now I'm left with 135mb of used physical
ram...
What can I draw from this?? Well memory that is being swapped shouldn't be,
once it is swapped out it doesn't seem to be reaped(my understanding is
lacking :-(( ). In my case 250mb of memory was swapped out during my memory
eater test. The process then died and 750mb of physical ram got freed up but
still 250mb of swap was in use, I then switched off swap and turned it back
on and it was gone. WHy was it there in the first place as I had 750mb of
free physical memory.
Secondly is there a problem with the Sym53c896 driver settings, I upped the
default queu length to 8 and the Synch Freq to 40mhz????, WHy is the machine
locking so badly under high IO... ???
TIA MARCin
--
-----------------------------
Marcin Kowalski
Linux/Perl Developer
Datrix Solutions
Cel. 082-400-7603
***Open Source Kicks Ass***
-----------------------------
next parent reply other threads:[~2001-04-11 14:51 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <Pine.SGI.4.31L.02.0104111030180.3516411-100000@irix2.gl.umbc.e>
2001-04-11 14:50 ` Marcin Kowalski [this message]
[not found] <Pine.LNX.4.10.10104110917410.28937-100000@coffee.psychology.mc>
2001-04-11 14:23 ` memory usage - continued - iCache/Dentry cacheing bug??? Marcin Kowalski
2001-04-11 14:31 ` John Jasen
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=0104111650170J.25951@webman \
--to=kowalski@datrix.co.za \
--cc=hahn@coffee.psychology.mcmaster.ca \
--cc=jjasen1@umbc.edu \
--cc=linux-kernel@vger.kernel.org \
--cc=tomlins@cam.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox