Messages in this thread | | | Date | Thu, 25 Aug 2005 10:14:35 +1000 | From | Nick Piggin <> | Subject | Re: process creation time increases linearly with shmem |
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Ray Fucillo wrote: > I am seeing process creation time increase linearly with the size of the > shared memory segment that the parent touches. The attached forktest.c > is a very simple user program that illustrates this behavior, which I > have tested on various kernel versions from 2.4 through 2.6. Is this a > known issue, and is it solvable? >
fork() can be changed so as not to set up page tables for MAP_SHARED mappings. I think that has other tradeoffs like initially causing several unavoidable faults reading libraries and program text.
What kind of application are you using?
-- SUSE Labs, Novell Inc.
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