Re: Linux on zSeries and file caching...

2004-07-14 Thread David Boyes
Could you not create a raw device and install a filesystem on it for your data? Access to the raw device would bypass the Linux cache. Your application would need to be specifically coded for that kind of access, and know how to manage raw blocks. Dave: you can't turn the Linux cache

Linux on zSeries and file caching...

2004-07-13 Thread Dave Jones
Folks, does anyone know how to build a Linux 2.4.x kernel that has Linux file caching disabled? I want to disable Linux's file caching and let CP's minidisk caching functions do it instead, and to reduce the virtual storage requirements for the guest. TIA. -- Dave Jones Houston, TX

Re: Linux on zSeries and file caching...

2004-07-13 Thread Post, Mark K
for active stuff. Mark Post -Original Message- From: Linux on 390 Port [mailto:[EMAIL PROTECTED] On Behalf Of Dave Jones Sent: Tuesday, July 13, 2004 12:20 PM To: [EMAIL PROTECTED] Subject: Linux on zSeries and file caching... Folks, does anyone know how to build a Linux 2.4.x kernel that has

Re: Linux on zSeries and file caching...

2004-07-13 Thread Alan Cox
On Maw, 2004-07-13 at 17:19, Dave Jones wrote: Folks, does anyone know how to build a Linux 2.4.x kernel that has Linux file caching disabled? I want to disable Linux's file caching and let CP's minidisk caching functions do it instead, and to reduce the virtual storage requirements for the

Re: Linux on zSeries and file caching...

2004-07-13 Thread Jeffrey Barnard
Dave, Could you not create a raw device and install a filesystem on it for your data? Access to the raw device would bypass the Linux cache. Regards Jeff -- Jeffrey C Barnard Barnard Software, Inc. http://www.bsiopti.com Phone 407-323-4773 Fax 407-323-4775

Linux on zSeries and file caching...

2004-07-13 Thread Barton Robinson
I think there are a few options other than the intuitive ones. I saw in some lab experiments some trick where you can mount a filesystem Synchrounous or something so that Linux does not buffer output. Not sure if this affects reads. There is also the new cooperative memory management where one

Re: Linux on zSeries and file caching...

2004-07-13 Thread Tom Duerbusch
Message- From: Linux on 390 Port [mailto:[EMAIL PROTECTED] On Behalf Of Dave Jones Sent: Tuesday, July 13, 2004 12:20 PM To: [EMAIL PROTECTED] Subject: Linux on zSeries and file caching... Folks, does anyone know how to build a Linux 2.4.x kernel that has Linux file caching disabled? I want