Messages in this thread | | | From | "Ying Chen" <> | Date | Tue, 06 Mar 2001 15:55:55 -0800 |
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Hi,
I have two questions on Linux pthread related issues. Would anyone be able to help?
1. Does any one have some suggestions (pointers) on good kernel Linux thread libraries? 2. We ran multi-threaded application using Linux pthread library on 2-way SMP and UP intel platforms (with both 2.2 and 2.4 kernels). We see significant increase in context switching when moving from UP to SMP, and high CPU usage with no performance gain in turns of actual work being done when moving to SMP, despite the fact the benchmark we are running is CPU-bound. The kernel profiler indicates that the a lot of kernel CPU ticks went to scheduling and signaling overheads. Has anyone seen something like this before with pthread applications running on SMP platforms? Any suggestions or pointers on this subject?
Thanks a lot!
Ying
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