Messages in this thread | | | Date | Fri, 02 Mar 2001 21:23:31 +0100 | From | Manfred Spraul <> | Subject | Re: [Re: paging behavior in Linux] |
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Neelam Saboo wrote: > > hi, > > After I installed a newer version of Kernel (2.4.2) and enable DMA option in > hardware configuration, the behavior changes. > I can see performance improvements when another thread is used. Also, i can > see timing overlaps between two threads. i.e. when one thread is blocked on a > page fault, other thread keeps working. > Now, how can this behavior be explained , given the earlier argument. > Is it that, a newer version of kernel has fixed the problem of the semaphore > ? > No, that change won't happen until 2.5
I can only guess: the other thread keeps working until it causes a page fault - with both 2.4.1 and 2.4.2.
I haven't followed the threads about the mm changes closely, but I assume that the swapout behaviour changed, and that your worker thread now runs without causing page faults.
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