Messages in this thread | | | Date | Tue, 15 Oct 2002 20:14:00 -0500 | From | Saurabh Desai <> | Subject | Re: [patch] mmap-speedup-2.5.42-C3 |
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Ingo Molnar wrote: > > the attached patch (against BK-curr) adds three new, threading related > improvements to the VM. > > the first one is an mmap inefficiency that was reported by Saurabh Desai. > The test_str02 NPTL test-utility does the following: it tests the maximum > number of threads by creating a new thread, which thread creates a new > thread itself, etc. It basically creates thousands of parallel threads, > which means thousands of thread stacks.
Like to point out, test_str02 is a NGPT test program not NPTL.
> the patch was tested on x86 SMP and UP. Saurabh, can you confirm that this > patch fixes the performance problem you saw in test_str02? >
Yes, the test_str02 performance improved a lot using NPTL. However, on a side effect, I noticed that randomly my current telnet session was logged out after running this test. Not sure, why? I applied your patch on 2.5.42 kernel and running glibc-2.3.1pre2. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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