Re: kernel swap question

2008-09-14 Thread Michael
On Sun, Sep 14, 2008 at 04:14:44PM -0400, Mag Gam wrote: > Michael: > > Interesting. That will just not use swap? So, it will FIFO pages into > physical memory? > > > > On Sun, Sep 14, 2008 at 3:29 PM, Michael <[EMAIL PROTECTED]> wrote: > > On Sat, Sep 13, 2008 at 06:28:31PM -0400, Mag Gam wrot

Re: kernel swap question

2008-09-14 Thread Mag Gam
Michael: Interesting. That will just not use swap? So, it will FIFO pages into physical memory? On Sun, Sep 14, 2008 at 3:29 PM, Michael <[EMAIL PROTECTED]> wrote: > On Sat, Sep 13, 2008 at 06:28:31PM -0400, Mag Gam wrote: >> I have a system with 32GB of RAM. The application is designed so it >

Re: kernel swap question

2008-09-14 Thread Michael
On Sat, Sep 13, 2008 at 06:28:31PM -0400, Mag Gam wrote: > I have a system with 32GB of RAM. The application is designed so it > does not do sequential reads and it does random operations. The > application memory intensive and I would like it to not swap. I want > it to use physical memory as much

Re: kernel swap question

2008-09-14 Thread Hakan BAYINDIR
In my experience (I'm a HPC cluster admin btw.), Linux doesn't swap until RAM is drained to 10MB or so. Until then, everything is kept in RAM in a so called buffer area. Kernel also doesn't force a size for this buffer area and only swaps if the RAM drainage occurs. As soon as the free space in RAM

Re: kernel swap question

2008-09-13 Thread Ron Johnson
On 09/13/08 17:34, Mag Gam wrote: Also, my I/O is pretty fast. It can do 250/MBsec read/write randomly. If that helps.. Don't think so... On Sat, Sep 13, 2008 at 6:28 PM, Mag Gam <[EMAIL PROTECTED]> wrote: I have a system with 32GB of RAM. The application is designed so it does not do sequ

Re: kernel swap question

2008-09-13 Thread Mag Gam
Also, my I/O is pretty fast. It can do 250/MBsec read/write randomly. If that helps.. TIA On Sat, Sep 13, 2008 at 6:28 PM, Mag Gam <[EMAIL PROTECTED]> wrote: > I have a system with 32GB of RAM. The application is designed so it > does not do sequential reads and it does random operations. The >

kernel swap question

2008-09-13 Thread Mag Gam
I have a system with 32GB of RAM. The application is designed so it does not do sequential reads and it does random operations. The application memory intensive and I would like it to not swap. I want it to use physical memory as much as possible. Once the memory is read and operated on, I want tha