Thread

1. Fwd: Re: Shared memory for RH Linux 7.1

   Ryan Mahoney <ryan@paymentalliance.net> — 2001-05-24T12:37:37Z

   >This is true.  You can adjust the value in the /proc/sys/kernel/shmmax 
   >file.  If you change the value it will be reset when you reboot, so you 
   >will need to write a start-up script to always change this value if you 
   >want it to be permanent.
   >
   >-r
   >
   >At 09:51 AM 5/24/01 -0700, you wrote:
   >
   >>In the past, I had to change the RedHat Linux kernel so that the
   >>shared memory was set to something much higher than the default (which
   >>I think was about 32 MBytes). It seems that this is no longer
   >>necessary in RH 7.1 (kernel 2.4). Can someone confirm this?
   >>
   >>-Tony
   >>
   >>---------------------------(end of broadcast)---------------------------
   >>TIP 1: subscribe and unsubscribe commands go to majordomo@postgresql.org
   >>
   >>
   >>
   >>---
   >>Incoming mail is certified Virus Free.
   >>Checked by AVG anti-virus system (http://www.grisoft.com).
   >>Version: 6.0.251 / Virus Database: 124 - Release Date: 4/26/01
   

2. Re: Fwd: Re: Shared memory for RH Linux 7.1

   Michael J Schout <mschout@gkg.net> — 2001-06-01T20:54:42Z

   On Thu, 24 May 2001, Ryan Mahoney wrote:
   
   > >This is true.  You can adjust the value in the /proc/sys/kernel/shmmax 
   > >file.  If you change the value it will be reset when you reboot, so you 
   > >will need to write a start-up script to always change this value if you 
   > >want it to be permanent.
   
   or you can let sysctl do it with this in /etc/sysctl.conf:
   
   kernel.shmmax = 268435456
   
   (obviously changing the value with what is appropriate for your machine).
   
   This is for a RH 6.2 box.  DOnt know if its the same on 7.1.  We switched to
   FreeBSD between redhat 6.2 and 7.0, so we dont have any RH7.1 boxes laying
   around.  I suspect it hasn't changed though.
   
   Mike