I don't understand your rss comment. I thought that setting the limit field effectively gets you a rss limit, no?!
> -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] Behalf Of Chandra > Seetharaman > Sent: Wednesday, October 13, 2004 1:07 PM > Cc: [EMAIL PROTECTED] > Subject: Re: [Fwd: Re: [ckrm-tech] memory resource controller for e16] > > > On Tue, Oct 12, 2004 at 12:30:06AM -0500, Ray Bryant wrote: > Ray, > > Thanks for your comments.. > > We are not distinguishing _between_ active and inactive. It is the sum of > active and inactive pages that is used against limit/guarantee. > > Agreed, rss can also be controlled, we thought if needed that can be > implemented as a different resource controller.... > > chandra > > > > Chandra, > > > > Sorry for a late post on this, but I just happened to be > perusing this list, > > and I was curious why the CKRM memory resource controller cares about > > distinguishing between active and inactive pages. > > > > It seems to me that the "share" that should be guarenteed to a > program is > > its > > use of main memory (e. g. mm->rss) and not of a certain number > of pages on > > the > > active or inactive list. The resource that is being controlled is main > > memory > > pages, not slots on the lru lists. > > > > Indeed, one can readily construct cases where the Linux vmm > will put all of > > the pages for a particular application on the active list (or for that > > matter, > > the inactive list) while the total number of pages used is > precisely the > > same. > > > > Examples of this abound, but here is a simple one to try: set > swappiness to > > zero, malloc and touch some memory in a process, sleep and repeat the > > touches; > > then start up a big I/O (file copy) in the background that will touch > > sufficient pages to force memory to be overcomitted. The vmm > will put all > > of > > the malloc processs's pages onto the active list. This process has done > > nothing differently after the big I/O process has started than it did > > before, > > and its pages will get moved. > > > > If you artificially set up a small active list share (smaller than the > > number > > of pages required by this process), how will the controller > deal with this, > > kill the process? (It's not the process's fault.....) > > > > At least the way it seems to me is that its not going to be > productive to > > specify process level memory shares in terms of these lists. A more > > reasonable set of shares, it would seem to me, would be > limits/guarentees on > > the amount of ZONE_NORMAL, ZONE_DMA, and ZONE_HIGH memory used > by a process. > > > > Now this is all based on a quick perusal of your design > document. If I've > > misread or misunderstood this in some gross way, my sincerest apologies. > > > > -- > > Best Regards, > > Ray > > ----------------------------------------------- > > Ray Bryant > > 512-453-9679 (work) 512-507-7807 (cell) > > [EMAIL PROTECTED] [EMAIL PROTECTED] > > The box said: "Requires Windows 98 or better", > > so I installed Linux. > > ----------------------------------------------- > > > > > > > > -- > > Best Regards, > > Ray > > ----------------------------------------------- > > Ray Bryant > > 512-453-9679 (work) 512-507-7807 (cell) > > [EMAIL PROTECTED] [EMAIL PROTECTED] > > The box said: "Requires Windows 98 or better", > > so I installed Linux. > > ----------------------------------------------- > > > > > > > > ------------------------------------------------------- > > This SF.net email is sponsored by: IT Product Guide on ITManagersJournal > > Use IT products in your business? Tell us what you think of > them. Give us > > Your Opinions, Get Free ThinkGeek Gift Certificates! Click to > find out more > > http://productguide.itmanagersjournal.com/guidepromo.tmpl > > _______________________________________________ > > ckrm-tech mailing list > > https://lists.sourceforge.net/lists/listinfo/ckrm-tech > > -- > > ---------------------------------------------------------------------- > Chandra Seetharaman | Be careful what you choose.... > - [EMAIL PROTECTED] | .......you may get it. > ---------------------------------------------------------------------- > > > ------------------------------------------------------- > This SF.net email is sponsored by: IT Product Guide on ITManagersJournal > Use IT products in your business? Tell us what you think of them. Give us > Your Opinions, Get Free ThinkGeek Gift Certificates! 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