Messages in this thread | | | Subject | Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory) | From | Chandra Seetharaman <> | Date | Mon, 11 Sep 2006 11:47:09 -0700 |
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On Mon, 2006-09-11 at 11:02 +0400, Pavel Emelianov wrote: <snip>
> >> In this case multithreaded apache that tries to serve each domain in > >> separate BC will fill the memory with BC-s, held by pages allocated > >> and mapped in threads. > >> > > > > I do not understand how the memory will be filled with BCs. Can you > > explain, please. > > > Sure. At the beginning I have one task with one BC. Then > 1. A thread is spawned and new BC is created;
You do not have to create a new BC for each new thread, just associate the thread to an existing appropriate BC.
> 2. New thread touches a new page (e.g. maps a new file) which is charged > to new BC > (and this means that this BC's must stay in memory till page is > uncharged); > 3. Thread exits after serving the request, but since it's mm is shared > with parent > all the touched pages stay resident and, thus, the new BC is still > pinned in memory. > Steps 1-3 are done multiple times for new pages (new files). > Remember that we're discussing the case when pages are not recharged. > > ------------------------------------------------------------------------- > Using Tomcat but need to do more? Need to support web services, security? > Get stuff done quickly with pre-integrated technology to make your job easier > Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo > http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 > _______________________________________________ > ckrm-tech mailing list > https://lists.sourceforge.net/lists/listinfo/ckrm-tech --
---------------------------------------------------------------------- Chandra Seetharaman | Be careful what you choose.... - sekharan@us.ibm.com | .......you may get it. ----------------------------------------------------------------------
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