Damned: The latest pdf file was shown in xpdf, still not in the attachment when sent! Re-attching the latest version.
On Wed, 2016-05-18 at 15:05 +0200, Svante Signell wrote: > On Thu, 2016-05-05 at 19:05 +0200, Richard Braun wrote: > > > > On Wed, Apr 20, 2016 at 11:40:39AM +0200, Richard Braun wrote: > > > > > > > > > I wrote an incomplete vm_map_enter in X15 [1] that should be helpful. > > > In addition to a free hint pointer, it uses the red-black tree, making > > > all allocations at worst O(n). If anyone feels like doing that little > > > task, enjoy yourself. Otherwise, I'll probably do it, when I have > > > some time, as usual. > > I've written some code to back virtual allocations with a red-black > > tree [1]. The code includes the removal of flow control in the pageout > > daemon because I was hitting swap deadlocks way too often. > > > > Feedbacks are welcome. > Updated table attached. Good news, the latest gnumach version, with the page- > cache-policy patches, including the pageout deadlock patch, by Richard is even > faster than the reverted one :) Add to that the small difference in build times when qemu runs with cache=none :43m42s vs cache=writeback: 39m10s, a more realistic case for people with real hardware :)
build-times.pdf
Description: Adobe PDF document
