From: Erik de Bruijn - BudgetDedicated.com <Erik@LowVoice.nl> - 2004-07-30 17:30:12
We host/provide low-cost UML servers, and I'm thinking of the idea of
hot-resizing memory through a swap partition with a higher priority. The
swap partition would be mounted in tmpfs. Ofcourse filesystem IO impacts
performance of such virtual memory, but I wonder how suitable this
technique is for perfomance.
I intend to try out and post performance benchmarks back to this list,
when I have time for it and (brought extra testing hardware to our
site). Do you have any tips and tricks for me?
I prefer mounting a 'tmpfs-ish' sort of thing as swap, but it needs no
dynamic resizing capability. My plan was that I'll just add more, or
remove ram_swaps after the internal system has moved all pages off it. I
might create a modified EXEC patch just for removing and adding swap.
Erik de Bruijn
http://www.BudgetDedicated.com | Tel. +31 492 430559 | Fax. +31 492 663870 | Mob. +31 6 21856715 | Adres: Haagwinde 16 | Zipcode NL-5731 WD Mierlo