Messages in this thread |  | | | Subject | Re: [Patch] shm bug introduced with pagecache in 2.3.11 | | Date | Fri, 19 Nov 1999 14:40:15 +0000 (GMT) | | From | Alan Cox <> |
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> > News servers like Typhoon , high performance threaded web servers (eg Zeus) > > Do you know if they are using mmap?
Yes. Typhoon uses threaded mmap so aggressively it became an unintentional test suite for the Linux mm layer, and in 2.0/2.1 it found a lot of bugs.
> Please note that the test is extremely I/O bound, ie I defeat read-ahead > with a RNG, and I only read one byte in every page, and the file is far > larger than available memory.
I would expect Typhoon to show some reasonably sane locality
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