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FEATURE: show large objects in admin/memory_stats

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Sam
2015-02-11 17:18:47 +11:00
parent c5fde808cf
commit e427d54191
1 changed files with 13 additions and 2 deletions
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15
app/controllers/admin/diagnostics_controller.rb
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@ -125,14 +125,16 @@ class Admin::DiagnosticsController < Admin::AdminController
classes = {} classes = {}
large_objects = []
if opts[:class_report] if opts[:class_report]
ObjectSpace.each_object do |o| ObjectSpace.each_object do |o|
begin begin
next if o == classes
classes[o.class] ||= 0 classes[o.class] ||= 0
classes[o.class] += 1 classes[o.class] += 1
if (size = ObjectSpace.memsize_of(o)) > 200
large_objects << [size, o]
end
rescue rescue
# all sorts of stuff can happen here BasicObject etc. # all sorts of stuff can happen here BasicObject etc.
classes[:unknown] ||= 0 classes[:unknown] ||= 0
@ -140,6 +142,15 @@ class Admin::DiagnosticsController < Admin::AdminController
end end
end end
classes = classes.sort{|a,b| b[1] <=> a[1]}[0..40].map{|klass, count| "#{klass}: #{count}"} classes = classes.sort{|a,b| b[1] <=> a[1]}[0..40].map{|klass, count| "#{klass}: #{count}"}
classes << "\nLarge Objects (#{large_objects.length} larger than 200 bytes total size #{large_objects.map{|x,_| x}.sum}):\n"
classes += large_objects.sort{|a,b| b[0] <=> a[0]}[0..800].map do |size,object|
rval = "#{object.class}: size #{size}"
rval << " " << object[0..500].gsub("\n", "") if String === object
rval << "\n"
rval
end
end end
stats = GC.stat.map{|k,v| "#{k}: #{v}"} stats = GC.stat.map{|k,v| "#{k}: #{v}"}