Created
July 5, 2010 19:32
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# Add this to your app/controllers/application_controller.rb | |
# Log GC stats, if enabled (make this the first before_filter) | |
before_filter :before_log_gc_stats | |
# Log GC stats, if enabled (make this the last after_filter) | |
after_filter :after_log_gc_stats | |
def before_log_gc_stats | |
return if (ENV['RUBY_GC_STATS'].nil? or ENV['RUBY_GC_STATS'] != '1') | |
GC.log "***" | |
GC.log "Request starting: " + request.url | |
GC.log "***" | |
end | |
def after_log_gc_stats | |
return if (ENV['RUBY_GC_STATS'].nil? or ENV['RUBY_GC_STATS'] != '1') | |
GC.log "***" | |
GC.log "Request completed: " + request.url | |
GC.log "GC collections: " + GC.collections.to_s | |
GC.log "GC time (us): " + GC.time.to_s | |
GC.log "Bytes allocated since last GC run: " + GC.growth.to_s | |
GC.log "Bytes allocated since last request: " + GC.allocated_size.to_s | |
GC.log "Number of allocations since last request: " + GC.num_allocations.to_s | |
GC.log "Live objects: " + ObjectSpace.live_objects.to_s | |
GC.log "Total allocated objects since interpreter start: " + ObjectSpace.allocated_objects.to_s | |
GC.dump | |
GC.log "***" | |
GC.clear_stats | |
end |
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# Add this file to your config/initializers directory | |
# To enable logging of Ruby garbage collector and memory allocation stats | |
# with Ruby Enterprise Edition, set these environment variables: | |
# | |
# RUBY_GC_STATS=1 | |
# RUBY_GC_DATA_FILE=/tmp/ruby_gc.txt | |
if !ENV['RUBY_GC_STATS'].nil? and ENV['RUBY_GC_STATS'] == '1' then | |
GC.enable_stats | |
end |
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