----- Original Message ----- From: "Jim Sibley" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Monday, August 11, 2003 3:44 PM Subject: Re: zSeries performance heavily dependent on working set size
> Typical first reaction - its the paging subsystem and > its not tuned correctly. I think in your first post, where you mentioned working set size, most of us began thinking "paging". Later, "touch a byte in each page" furthers this assumption. You're talking memory cache misses, we're thinking page faults. <snip> > My question still is, "do other platforms (hardware) > see this degradation". I have run this on my 300PL and > you see two legs in the curve - when the hardware > cache miss begins and when the real memory is > exhausted and paging starts. I trust that the curve is more dramatic when paging starts! -jcf
