Thread: About add-ons optimization
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09-04-13, 09:21 AM   #39
Resike
A Pyroguard Emberseer
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Join Date: Mar 2010
Posts: 1,290
Originally Posted by Kagura View Post
Lua Code:
  1. function UnitAura(unitId, index)
  2. end
  3.  
  4. local startTime, endTime
  5. startTime = os.clock()
  6. for j = 1, 1000000 do
  7.     local name, rank, icon, count, dispelType, duration, expires, caster, isStealable, shouldConsolidate, spellID, canApplyAura, isBossDebuff, value1, value2, value3
  8.     for i = 1, 40 do
  9.         name, rank, icon, count, dispelType, duration, expires, caster, isStealable, shouldConsolidate, spellID, canApplyAura, isBossDebuff, value1, value2, value3 = UnitAura("player", i)
  10.     end
  11. end
  12. endTime = os.clock()
  13.  
  14. print(endTime-startTime)
  15.  
  16. startTime = os.clock()
  17. for j = 1, 1000000 do
  18.     for i = 1, 40 do
  19.         local name, rank, icon, count, dispelType, duration, expires, caster, isStealable, shouldConsolidate, spellID, canApplyAura, isBossDebuff, value1, value2, value3 = UnitAura("player", i)
  20.     end
  21. end
  22. endTime = os.clock()
  23.  
  24. print(endTime-startTime)
  25.  
  26. startTime = os.clock()
  27. for j = 1, 1000000 do
  28.     for i = 1, 40 do
  29.         local name, rank, icon, count, dispelType, duration, expires, caster, isStealable, shouldConsolidate, spellID, canApplyAura, isBossDebuff, value1, value2, value3
  30.         name, rank, icon, count, dispelType, duration, expires, caster, isStealable, shouldConsolidate, spellID, canApplyAura, isBossDebuff, value1, value2, value3 = UnitAura("player", i)
  31.     end
  32. end
  33. endTime = os.clock()
  34.  
  35. print(endTime-startTime)
  36.  
  37. --- Results
  38. $ lua test.lua
  39. 5.859
  40. 2.562
  41. 6.375
As soon as you going to start to use thoose varliabes in the second version, it's going to be as slow as the third one. The extra time for the first version comes from the lookup time and not beacuse it's not in the tightest scope.
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