Class: Insight::MemoryPanel

Inherits:
Panel
  • Object
show all
Defined in:
lib/insight/panels/memory_panel.rb

Instance Attribute Summary

Attributes inherited from Panel

#request

Instance Method Summary collapse

Methods inherited from Panel

#call, #content_for_request, current_panel_file, excluded, file_index, from_file, inherited, #panel_app, panel_exclusion, panel_mappings, #render

Methods included from Instrumentation::Client

#after_detect, #before_detect, #probe, #request_finish, #request_start

Methods included from Logging

logger

Methods included from Database::RequestDataClient

#key_sql_template, #retrieve, #store, #table_length, #table_setup

Methods included from Render

#compile, #compile!, #compiled_source, #method_name, #method_name_without_locals, #render_template, #signed_params

Constructor Details

#initialize(app) ⇒ MemoryPanel 



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# File 'lib/insight/panels/memory_panel.rb', line 4

def initialize(app)
  super
  table_setup("memory_records")
end

Instance Method Details

#after(env, status, headers, body) ⇒ Object 



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# File 'lib/insight/panels/memory_panel.rb', line 13

def after(env, status, headers, body)
  total_memory = `ps -o rss= -p #{$$}`.to_i
  store(env, {:total_memory => total_memory,
        :memory_increase => total_memory - @original_memory,
        :original_memory => @original_memory})
end

#before(env) ⇒ Object 



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# File 'lib/insight/panels/memory_panel.rb', line 9

def before(env)
  @original_memory = `ps -o rss= -p #{$$}`.to_i
end

#has_content? ⇒ Boolean 



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# File 'lib/insight/panels/memory_panel.rb', line 26

def has_content?
  false
end

#heading_for_request(number) ⇒ Object 



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# File 'lib/insight/panels/memory_panel.rb', line 20

def heading_for_request(number)
  record = retrieve(number).first

  "#{record[:memory_increase]} KB Δ, #{record[:total_memory]} KB total"
end

#name ⇒ Object 



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# File 'lib/insight/panels/memory_panel.rb', line 30

def name
  "Memory"
end