Dennis, If your Linux/390 guests were doing a _lot_ of swapping, I can see how something like this would let Linux schedule swap I/O to the multiple devices more "in parallel." Since I have no feel for how fast VM turns those requests around for a vdisk, it may or may not buy you anything. This would be something I'd want Barton to take a look at and see what he thinks. I don't think theorizing about it will get us very far. Interesting idea, though.
Mark Post -----Original Message----- From: Dennis Wicks [mailto:[EMAIL PROTECTED] Sent: Tuesday, April 01, 2003 11:26 AM To: [EMAIL PROTECTED] Subject: Using V-DISK for swap. Greetings; I don't think I have seen this particular aspect of V-DISK swap space discussed here before. Is there any thing in either VM or linux that would make the use of multiple V-DISK swap spaces better or worse than a single one? I don't mean just one versus two but more on the order of ten 100 meg. swap areas versus one 1 gig. swap area. Or even something like ten 50 meg. areas vs. one 500 meg. area. The reaon for the question is that it is easier to set these things when first defining the guest than it is to come back later and retrofit them. Thanks for any insights! Dennis -- Dennis G. Wicks Systems Programmer [EMAIL PROTECTED] Communications Data Group Tel: (217)355-7117 Fax: (217)351-6994 102 S. Duncan Rd. Champaign, IL 61822
