To my question: > Shouldn't the paging algorithm spread the I/O across all of the swap > devices available to balance the load?
Willem Konynenberg replied: >When you didn't explicitly specify a priority for each swap volume, >the system automatically assigned priorities in descending order. >If you want load balancing, specify a priority explicitly. Thanks. Willem. That fixed the problem. By adding pri=1 to each of the swap spaces in fstab, I'm getting a more even balance over 6 swap spaces. Also, when I had unequal swap spaces, Linux S/390 would go into a supervisor loop over all CP's (probably a spin locks) when the first swap space filled up. WIth the even distribution, the supervisor loop has been corrected and we can get on with our work (albeit with a log of paging). Since swap space is really page space in Linux 2.2 and above, why don't we call it page rather than swap? Regards, Jim Linux S/390-zSeries Support, SEEL, IBM Silicon Valley Labs t/l 543-4021, 408-463-4021, [EMAIL PROTECTED] *** Grace Happens ***
