>>> On Fri, Aug 31, 2007 at 6:47 PM, in message <[EMAIL PROTECTED] .bisx.prod.on.blackberry>, Ted MacNEIL <[EMAIL PROTECTED]> wrote: >> > 2. Why not just attach the memory to the guest, rather than page. > >>Because the guest will use it all, and you don't want it to do that. (See > your own comment from before. :) > > You sort of misinterpreted what I meant. > Give the guest enough to not page, and no more.
That's still probably too much, if only by a little. The idea is to force Linux to use as little storage as possible for buffers and cache, and page out any programs, etc., that haven't been used very recently. Letting z/VM handle this via expanded storage, and paging some things out to real disk turns out to work very well in a shared environment. Other techniques, such as having the kernel in a Named Saved Segment, and executable userspace code in a DCSS using the eXecute In Place file system helps even more. Mark Post ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
