with jemalloc profiler tuned on, all threads are spending lot of time on mutexes and that makes all threads...











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I have enabled jemalloc profiler for my process to identify the memory leak. But when I start the process with jemalloc profiler, all threads of the process spend way too much time on mutexes. From strace I can see 98% of the time is spent on mutexes of my application code. The CPU usage of the threads drop from 70% to 7%, so my process starts processing data at very slow pace and leak disappears.



I'm trying to find why would enabling jemalloc profiler slows down my threads, this is on debian.






multithreading mutex jemalloc







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    down vote

    favorite












    I have enabled jemalloc profiler for my process to identify the memory leak. But when I start the process with jemalloc profiler, all threads of the process spend way too much time on mutexes. From strace I can see 98% of the time is spent on mutexes of my application code. The CPU usage of the threads drop from 70% to 7%, so my process starts processing data at very slow pace and leak disappears.



    I'm trying to find why would enabling jemalloc profiler slows down my threads, this is on debian.






    multithreading mutex jemalloc







    share|improve this question
























      up vote
      0
      down vote

      favorite









      up vote
      0
      down vote

      favorite











      I have enabled jemalloc profiler for my process to identify the memory leak. But when I start the process with jemalloc profiler, all threads of the process spend way too much time on mutexes. From strace I can see 98% of the time is spent on mutexes of my application code. The CPU usage of the threads drop from 70% to 7%, so my process starts processing data at very slow pace and leak disappears.



      I'm trying to find why would enabling jemalloc profiler slows down my threads, this is on debian.






      multithreading mutex jemalloc







      share|improve this question













      I have enabled jemalloc profiler for my process to identify the memory leak. But when I start the process with jemalloc profiler, all threads of the process spend way too much time on mutexes. From strace I can see 98% of the time is spent on mutexes of my application code. The CPU usage of the threads drop from 70% to 7%, so my process starts processing data at very slow pace and leak disappears.



      I'm trying to find why would enabling jemalloc profiler slows down my threads, this is on debian.






      multithreading mutex jemalloc




      multithreading mutex jemalloc






      share|improve this question













      share|improve this question











      share|improve this question




      share|improve this question










      asked Nov 22 at 13:41









      rmp

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