jm + tuning   3

The MySQL “swap insanity” problem and the effects of the NUMA architecture
very interesting; modern multicore x86 architectures use a NUMA memory architecture, which can cause a dip into swap, even when there appears to be plenty of free RAM available
linux  memory  mysql  optimization  performance  swap  tuning  vm  numa  swap-insanity  swapping  from delicious
september 2010 by jm
Mindblowing Python GIL
'presentation about how the Python GIL actually works and why it's even worse than most people even imagine.' A good chunk btw could be rephrased as 'pthreads is worse than most people even imagine'. pretty awful data, though
python  gil  locking  synchronization  ouch  performance  tuning  coding  interpreters  threads  pthreads  from delicious
february 2010 by jm

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