module MemoryProfiler::TopN
Public Instance Methods
top_n(max, metric_method)
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Fast approach for determining the top_n
entries in a Hash of Stat
objects. Returns results for both memory (memsize summed) and objects allocated (count) as a tuple.
# File lib/memory_profiler/top_n.rb, line 7 def top_n(max, metric_method) metric_memsize = Hash.new(0) metric_objects_count = Hash.new(0) each_value do |value| metric = value.send(metric_method) metric_memsize[metric] += value.memsize metric_objects_count[metric] += 1 end stats_by_memsize = metric_memsize .to_a .sort_by! { |metric, memsize| [-memsize, metric] } .take(max) .map! { |metric, memsize| { data: metric, count: memsize } } stats_by_count = metric_objects_count .to_a .sort_by! { |metric, count| [-count, metric] } .take(max) .map! { |metric, count| { data: metric, count: count } } [stats_by_memsize, stats_by_count] end