Swap partition "filling up" on RHEL4 - NOT

2006-08-31 Thread Barton Robinson
some things in this thread. 1) as Rob pointed out, you are slowing down your linux server on purpose. A swap device to disk maybe can do 200 swaps per second, so ok, add 3, and you can do 600. With vdisk, it could be 40,000 per second - so linux doesn't notice it is swapping. 2) you do not have t

Re: Swap partition "filling up" on RHEL4 - NOT

2006-08-30 Thread John Campbell
Rob van der Heij commented: > On 8/30/06, John Campbell <[EMAIL PROTECTED]> wrote: > > > The hell of it is that I *don't* have a zSeries-- or even an > > instance within z/VM-- where I can run Linux, so I can only do > > some speculation. > > Yes, and that is where it makes a difference. On discret

Re: Fw: [LINUX-390] Swap partition "filling up" on RHEL4 - NOT

2006-08-30 Thread Rob van der Heij
On 8/30/06, John Campbell <[EMAIL PROTECTED]> wrote: The hell of it is that I *don't* have a zSeries-- or even an instance within z/VM-- where I can run Linux, so I can only do some speculation. Yes, and that is where it makes a difference. On discrete servers it may make sense to tune your co

Fw: [LINUX-390] Swap partition "filling up" on RHEL4 - NOT

2006-08-30 Thread John Campbell
Ken Hall said: > I tracked down a copy of the actual report from the performance guy, > and it turns out we've been (partially) barking up the wrong tree. > Sorry for the confusion. > > The real story is that the large swap partition DEVICE was 100% BUSY > during part of the test. The original sum

Re: Swap partition "filling up" on RHEL4 - NOT

2006-08-30 Thread Hall, Ken (GTI)
006 11:37 AM > To: LINUX-390@VM.MARIST.EDU > Subject: Re: [LINUX-390] Swap partition "filling up" on RHEL4 - NOT > > > If you're running under VM, make the swap devices a virtual > disk. They > can handle a significantly higher load than the real disk. >

Re: Swap partition "filling up" on RHEL4 - NOT

2006-08-30 Thread Rob van der Heij
On 8/30/06, Rich Smrcina <[EMAIL PROTECTED]> wrote: If you're running under VM, make the swap devices a virtual disk. They can handle a significantly higher load than the real disk. Sure. And that's where the different priorities make sense to avoid infinite growth of the footprint of that VD

Re: Swap partition "filling up" on RHEL4 - NOT

2006-08-30 Thread Rich Smrcina
If you're running under VM, make the swap devices a virtual disk. They can handle a significantly higher load than the real disk. Hall, Ken (GTI) wrote: I tracked down a copy of the actual report from the performance guy, and it turns out we've been (partially) barking up the wrong tree. Sorr

Swap partition "filling up" on RHEL4 - NOT

2006-08-30 Thread Hall, Ken (GTI)
I tracked down a copy of the actual report from the performance guy, and it turns out we've been (partially) barking up the wrong tree. Sorry for the confusion. The real story is that the large swap partition DEVICE was 100% BUSY during part of the test. The original summary report said 100