Messages in this thread | ![/](/images/icornerl.gif) | | Date | Tue, 16 Sep 2003 11:22:02 -0400 | From | Timothy Miller <> | Subject | Re: experiences beyond 4 GB RAM with 2.4.22 |
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Stephan von Krawczynski wrote: > On Tue, 16 Sep 2003 10:11:49 -0300 (BRT) > Marcelo Tosatti <marcelo.tosatti@cyclades.com.br> wrote: > > >>Oh... Jens just pointed bounce buffering is needed for the upper 2Gs. >> >>Maybe you have a SCSI card+disks to test ? 8) > > > Well, I do understand the bounce buffer problem, but honestly the current way > of handling the situation seems questionable at least. If you ever tried such a > system you notice it is a lot worse than just dumping the additional ram above > 4GB. You can really watch your network connections go bogus which is just > unacceptable. Is there any thinkable way to ommit the bounce buffers and still > do something useful with the beyond-4GB ram parts? > We should not leave the current bad situation as is...
If there were some kind of tracking to determine which processes are doing I/O which requires the process to be in low memory. Then, processes can be migrated around in physical memory so as to optimize for that.
Or is that already being done?
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