Messages in this thread |  | | | Date | Tue, 9 Mar 2004 17:07:09 +0100 | | From | Ingo Molnar <> | | Subject | Re: [lockup] Re: objrmap-core-1 (rmap removal for file mappings to avoid 4:4 in <=16G machines) |
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* Andrea Arcangeli <andrea@suse.de> wrote:
> > or run the attached test-mmap2.c code, which simulates a very small DB > > app using only 1800 vmas per process: it only maps 8 MB of shm and > > spawns 32 processes. This has an even more lethal effect than the > > previous code. > > this use more cpu than the previous one, but no other differences.
how fast is the system you tried this on? If it's faster than the 500 MHz box i tried it on then please try the attached test-mmap3.c. (which is still not doing anything extreme.)
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