Re: [expert] Memory limits in Mandrake 7.1
Daniel Woods wrote: > > I have a 1000 MHz PIII box running Mandrake 7.1, all stock (no kernel > > recompiles or other stuff), with 1024 MB of RAM & 2048 MB of swap space > > in a swap partition. I am having problems running jobs (processes) which > > want to use large fractions of the RAM (perhaps over 100 %, i.e. more > > than 1024 MB of RAM). Is there a limit on the size of addressable memory > > in this version of Linux ? Is there a per-process memory limit ? If so, > > what are the limits ? Thanks in advance. > > > > Bill Mahaffey > > Check out > /etc/security/limits.conf > > Thanks... Dan. > > > Want to buy your Pack or Services from MandrakeSoft? > Go to http://www.mandrakestore.com Dan: Mine's empty ! I do use the limit command under tcsh to raise memory, vmemory & datasize limits to unlimited & stacksize to 768432 KB (3/4 of RAM), but can't address even all of that. Thanks for any more insight. Want to buy your Pack or Services from MandrakeSoft? Go to http://www.mandrakestore.com
Re: [expert] Memory limits in Mandrake 7.1
On Wednesday 05 December 2001 07:24 am, Daniel Woods wrote: > > I have a 1000 MHz PIII box running Mandrake 7.1, all stock (no kernel > > recompiles or other stuff), with 1024 MB of RAM & 2048 MB of swap space > > in a swap partition. I am having problems running jobs (processes) which > > want to use large fractions of the RAM (perhaps over 100 %, i.e. more > > than 1024 MB of RAM). Is there a limit on the size of addressable memory > > in this version of Linux ? Is there a per-process memory limit ? If so, > > what are the limits ? Thanks in advance. > > > > Bill Mahaffey > > Check out > /etc/security/limits.conf > > Thanks... Dan. The kernel is limited by the amount of RAM it is compiled for, and 1G is the Max. There are enterprise kernels starting with 8.0 that are compiled for up to 64G In order to give a single process more RAM than is available, you need a kernel feature that was not compiled into the 7.x series kernels, If you have loaded the kernel-headers and kernel-source rpms, open a terminal, su to root, cd to /usr/src/linux and run 'make mrproper' then 'make xconfig'. Under "Processor Type and Features" "High Memory Support" This should give you the option to compile for 4G. Civileme Want to buy your Pack or Services from MandrakeSoft? Go to http://www.mandrakestore.com
Re: [expert] Memory limits in Mandrake 7.1
> I have a 1000 MHz PIII box running Mandrake 7.1, all stock (no kernel > recompiles or other stuff), with 1024 MB of RAM & 2048 MB of swap space > in a swap partition. I am having problems running jobs (processes) which > want to use large fractions of the RAM (perhaps over 100 %, i.e. more > than 1024 MB of RAM). Is there a limit on the size of addressable memory > in this version of Linux ? Is there a per-process memory limit ? If so, > what are the limits ? Thanks in advance. > > Bill Mahaffey Check out /etc/security/limits.conf Thanks... Dan. Want to buy your Pack or Services from MandrakeSoft? Go to http://www.mandrakestore.com
Re: [expert] Memory limits in Mandrake 7.1
What you are describing is the default behavior for the default kernel. There is an option when you re-compile the kernel to allow it to address 1 GB of memory or more. If you were running the newer versions of Mandrake (ie, 8.1), you could simply install the kernel-enterprise rpm. With 7.1, you'll have to recompile. Michael -- Michael Viron Registered Linux User #81978 Senior Systems & Administration Consultant Web Spinners, University of West Florida At 08:43 AM 12/05/2001 -0600, you wrote: >I have a 1000 MHz PIII box running Mandrake 7.1, all stock (no kernel >recompiles or other stuff), with 1024 MB of RAM & 2048 MB of swap space >in a swap partition. I am having problems running jobs (processes) which >want to use large fractions of the RAM (perhaps over 100 %, i.e. more >than 1024 MB of RAM). Is there a limit on the size of addressable memory >in this version of Linux ? Is there a per-process memory limit ? If so, >what are the limits ? Thanks in advance. > >Bill Mahaffey > >Want to buy your Pack or Services from MandrakeSoft? >Go to http://www.mandrakestore.com > Want to buy your Pack or Services from MandrakeSoft? Go to http://www.mandrakestore.com
