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56 lines
1.3 KiB
Ruby
56 lines
1.3 KiB
Ruby
require_dependency 'memory_diagnostics'
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class Admin::DiagnosticsController < Admin::AdminController
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layout false
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skip_before_filter :check_xhr
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def dump_statement_cache
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statements = Post.exec_sql("select * from pg_prepared_statements").to_a
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text = ""
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statements.each do |row|
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text << "name: #{row["name"]} sql: #{row["statement"]}\n"
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end
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text << "\n\nCOUNT #{statements.count}"
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render plain: text
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end
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def memory_stats
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text = nil
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if params.key?(:diff)
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if !MemoryDiagnostics.snapshot_exists?
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text = "No initial snapshot exists"
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else
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text = MemoryDiagnostics.compare
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end
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elsif params.key?(:snapshot)
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MemoryDiagnostics.snapshot_current_process
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text = "Writing snapshot to: #{MemoryDiagnostics.snapshot_filename}\n\nTo get a diff use ?diff=1"
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else
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text = MemoryDiagnostics.memory_report(class_report: params.key?(:full))
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end
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render plain: text
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end
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def dump_heap
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begin
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# ruby 2.1
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GC.start(full_mark: true)
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require 'objspace'
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io = File.open("discourse-heap-#{SecureRandom.hex(3)}.json", 'w')
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ObjectSpace.dump_all(output: io)
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io.close
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render plain: "HEAP DUMP:\n#{io.path}"
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rescue
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render plain: "HEAP DUMP:\nnot supported"
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end
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end
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end
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