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| -rw-r--r-- | lib/memory_profiler.rb | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/lib/memory_profiler.rb b/lib/memory_profiler.rb index 8fecc3138..a1cb64d34 100644 --- a/lib/memory_profiler.rb +++ b/lib/memory_profiler.rb @@ -1,6 +1,17 @@ # Taken from # http://scottstuff.net/blog/2006/08/17/memory-leak-profiling-with-rails +# This is useful for finding memory leaks of the sort where a reference has +# been accidentally kept to an object when it wasn't intended to be. It +# is particularly useful if the leaking objects contain strings. +# +# You can enable it in config/environments/development.rb It then writes +# to log files in logs/memory_profiler* +# +# If you have :string_debug enabled, you might find this one liner useful. It +# compares the two most recent string dumps. +# strings `ls -1t *profiler_strings* | head --lines=1` |sort > a; strings `ls -1t *profiler_strings* | head --lines=2 | tail --lines=1` |sort > b; diff b a |less + class MemoryProfiler DEFAULTS = {:delay => 10, :string_debug => false} |