Re: [Valgrind-users] cachegrind not detecting false-sharing

2011-09-19 Thread Josef Weidendorfer
On Monday 19 September 2011, zap foster wrote: > How can the results be virtually identical? I would have thought the "false > sharing" version would be significantly higher than the other, but they are > nearly identical. > > Is there something I am doing wrong with the tool? No. You did not

[Valgrind-users] cachegrind not detecting false-sharing

2011-09-19 Thread zap foster
I tried running the following example program across cachegrind to see metrics that indicate cache line false-sharing. Here's the example: #include #include #include #include #define MAX_TESTS10 #define MAX_THREADS 100 #define CACHELINE_SIZE_INTS \ (64/sizeof(int)) BOOST_STA