On Wed, 5 Jan 2005, Arnd Bergmann wrote:
- Pseudo faults:
These are a problem, because they turn what would be a single
pageout into a pageout, a pagein, and another pageout, in
effect tripling the amount of IO that needs to be done.
- Ballooning:
Xen already has this. I wonder if it makes sense to
consolidate the various balloon approaches into a single
driver, and keep the amount of ballooned memory into
account when reporting statistics in /proc/meminfo.
When you want to introduce some interface in Xen, you probably want
something more powerful than these,
Xen has a nice balloon driver, that can also be
controlled from outside the guest domain.
--
"Debugging is twice as hard as writing the code in the first place.
Therefore, if you write the code as cleverly as possible, you are,
by definition, not smart enough to debug it." - Brian W. Kernighan
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