| Subject | Re: [patch] vmfixes-2.4.0-test9-B2 - fixing deadlocks | From | Christoph Rohland <> | Date | 26 Sep 2000 18:20:47 +0200 |
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Andrea Arcangeli <andrea@suse.de> writes:
> Could you tell me what's wrong in having an app with a 1.5G mapped executable > (or a tiny executable but with a 1.5G shared/private file mapping if you > prefer),
O.K. that sound more reasonable. I was reading image as program text... and a 1.5GB program text is a something I never have seen (and hopefully will never see :-)
> 300M of shm (or 300M of anonymous memory if you prefer) and 200M as > filesystem cache?
I don't really see a reason for fs cache in the application. I think that parallel applications tend to either share mostly all or nothing, but I may be wrong here.
> The application have a misc I/O load that in some part will run out > of the working set, what's wrong with this? > > What's ridiculous? Please elaborate.
I think we fixed this misreading.
But still IMHO you underestimate the importance of shared memory for a lot of applications in the high end. There is not only Oracle out there and most of the shared memory is _not_ locked.
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