On Sunday 14 August 2005 03:38, Ingo Molnar wrote: > * Blaisorblade <[EMAIL PROTECTED]> wrote:
> > Ok, I've been working for the past two weeks learning well the Linux > > VM, understanding the Ingo's remap_file_pages protection support and > > its various weakness (due to lack of time on his part), and splitting > > and finishing it. > > Here follow a series of 39 _little_ patches against the git-commit-id > > 889371f61fd5bb914d0331268f12432590cf7e85, which means between > > 2.6.13-rc4 and -rc5. > > Actually, the first 7 ones are unrelated trivial cleanups which > > somehow get in the way on this work and that can probably be merged > > even now (many are just comment fixes). > > Since I was a VM newbie until two weeks ago, I've separated my changes > > into many little patches. > hi. Great work! I'm wondering about this comment in Thanks for your appreciation. > rfp-fix-unmap-linear.patch: > > Additionally, add a missing TLB flush in both locations. However, > > there'is some excess of flushes in these functions. > excess TLB flushes one of the reasons of bad UML performance, so you > should really review them and not do spurious TLB flushes. After a bit of thought I realized that there was no spurious flush in those function, and that I didn't need to add any, because after setting a PTE as missing and flushing the TLB, I can freely alter it if I don't make it present again (right?), without other TLB flushes. -- Inform me of my mistakes, so I can keep imitating Homer Simpson's "Doh!". Paolo Giarrusso, aka Blaisorblade (Skype ID "PaoloGiarrusso", ICQ 215621894) http://www.user-mode-linux.org/~blaisorblade ___________________________________ Yahoo! Messenger: chiamate gratuite in tutto il mondo http://it.beta.messenger.yahoo.com ------------------------------------------------------- SF.Net email is Sponsored by the Better Software Conference & EXPO September 19-22, 2005 * San Francisco, CA * Development Lifecycle Practices Agile & Plan-Driven Development * Managing Projects & Teams * Testing & QA Security * Process Improvement & Measurement * http://www.sqe.com/bsce5sf _______________________________________________ User-mode-linux-devel mailing list User-mode-linux-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/user-mode-linux-devel
