Unity Memory - Speaker Deck

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Unity ϝϞϦʔ࠷దԽ Ԧቨ 2014-07-17

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མͪΔ མͪΔ མͪΔ σʔλͷಡΈࠐΉ ॲཧ͍ͯ͠ͳ͍Τϥʔ ֎෦ϓϥάΠϯͷѱ͍ ϝϞϦʔ଍Γͳ͍ ʁʁʁ େࣄͳ͜ͱ ͩΕͰ΋෼͔Δ͜ͱඞཁʂ

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iPhone 4 iPhone 4s iPad mini: 512M iPhone 5Ҏ্: 1G Androidେମ: 1Gɺ2G΋͋Δ ىಈ͢ΔͱɺγεςϜ΋ϝϞϦʔ͔͔Γ·͢ iOS 6 -> 70M Ϩϕϧ iOS 7 -> 200M Ϩϕϧ *iOS 7.1.2ʹվળग़དྷ·͕ͨ͠ɺ170M͙Β͍ ݁࿦ɿϝϞϦʔҰ൪ݫ͍͠ͷ͸ iPhone 4 ͱ iOS 7 (7.1.2Ҏ֎) ͷ૊Έ߹ΘͤͰ͢

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WHY ϝϞϦʔਃ੥ ϝϞϦʔ࢖͏ ऴΘͬͨ ϦϦʔε GC.Collect

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Unity ϝϞϦʔ؅ཧϧʔϧ 1͔ͭ͋͠Γ·ͤΜʂ ࢀর͕͋Ε͹ɺ ϦϦʔεʢճऩʣͰ͖·ͤΜ

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࠷ॳ͔ΒϝϞϦʔਖ਼͘͠࢖༻ͷҙࣝΛ෇͍ͯɺ ϧʔϧΛकΕ͹ɺ࠷దԽͷ࡞ۀ͕؆୯ʹͳΒΕ·͢ʢͳ͠ʁʣ ͜ͱ͔͠Βɻɻɻ

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ࢀরʁ ը૾ʢAtlasɼTextureɼSpriteͳͲʣ Ի੠ʢSEɼBGMɼϘΠεͳͲʣ ΦϒδΣΫτʢεΫϦϓτɼModel dataʣ UnityͷΞηοτ C#

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ࢀরྫ GameScene->Sprite(GameObject)-> UISprite->StartAltas(UIAtlas) ->StartAtlas(Material)->StartAtlas.png ϝϞϦʔҰ൪

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NGྫ 1 ࢖͍ͬͯͳ͍Sceneͱ͔ Destroyͯ͠ͳͯ͘ɺ SetActive false͚ͩ ͓͢͢Ίɿ࢖͍ͬͯͳ͍΋ͷdestroyͯ͠ɺඞཁͳ࣌࠶Load ॏͯ͘ɺΑ͘࢖͏΋ͷ͕CacheͰ΋OK

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NGྫ 2 Talk.cs private static OnComplete _onTalkComplete = null; public static void Open(StoryData story, OnComplete onTalkComplete) { _story = story; _onTalkComplete = onTalkComplete; MakeATalk().Show(); } //Talk animation ﬁnished: public void OnTalkFinished() { if (_onTalkComplete != null) { _onTalkComplete(); } Destory(this) } Script.cs public void Go() { Talk.Open(story, ()=> { Debug.Log(“Talk ﬁnished”); }); } _onTalkComplete -> Script.cs -> Script GameObject -> ը૾ͱ͔

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NGྫ 2 Talk.cs private OnComplete _onTalkComplete = null; public void Open(StoryData story, OnComplete onTalkComplete) { _story = story; _onTalkComplete = onTalkComplete; Show(); } //Talk animation ﬁnished: public void OnTalkFinished() { if (_onTalkComplete != null) { _onTalkComplete(); } Destory(this) } Script.cs public void Go() { Talk t = new Talk(); t.Open(story, ()=> { Debug.Log(“Talk ﬁnished”); }); } ͓͢͢Ί staticඞཁͳ͍΋ͷɺstatic͠ͳ͍Ͱ staticɺ΋͘͠͸ singleton ཞ༻͠ͳ͍Ͱ

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NGྫ 3 AssetBundle AssetBundle1 = AssetBundle.CreateFromFile("1.unity3d"); obj1.renderer.material.mainTexture = AssetBundle1.Load("wall") as Texture; obj2.renderer.material.mainTexture = obj1.renderer.material.mainTexture; //… Destroy(obj1); Destroy(obj2); Assetͷࢀর͕ͳ͘ͳΔ͚Ͳɺ AssetBundle·ͩϦϦʔε͞Ε͍ͬͯͳ͍

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NGྫ 3 AssetBundle AssetBundle1 = AssetBundle.CreateFromFile("1.unity3d"); obj1.renderer.material.mainTexture = AssetBundle1.Load("wall") as Texture; obj2.renderer.material.mainTexture = obj1.renderer.material.mainTexture; //… Destroy(obj1); Destroy(obj2); AssetBundle1.Unload(true); //͔͔࣌ؒΓ·͢ Resources.UnloadUnusedAssets(); ը૾ϦϦʔεɺdelayͰ΋େৎ෉

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1 2 3 Proﬁler Window (Cmd+7) ։ൃͷ࣌΋ͪΐͬͱݟ͓ͯئ͍ https://www.youtube.com/watch?v=sBpXiJ9G3OY https://docs.unity3d.com/351/Documentation/Manual/Proﬁler.html

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NGྫ 4 ϦʔΫͰ͸ͳ͍͚Ͳɺ GC AllocͰύʔϑΥʔϚϯεѱ͘ͳΔ public void Update() { GameController controller = GetComponent(); controller.Foo(); List characters = new List(); transform.parent = practiceControler.cardRoot; transform.localScale = initCardScale; transform.position = initCardPosition; }

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NGྫ 4 public void Awake() { _cachedController = GetComponent(); _characters = new List(); _cachedTransform = transform; } public void Update() { _cachedController.Foo(); _characters.Clear(); _cachedTransform.parent = practiceControler.cardRoot; _cachedTransform.localScale = initCardScale; _cachedTransform.position = initCardPosition; } GameObject.Find ͳͲͷ୳͢method΋

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GC Alloc ຖFrameɹϝϞϦʔਃ੥ͷྔ kbͷϨϕϧʹकΓ·͠ΐ͏ GC.Collect গͳ͘ͳΔɺύʔϑΥʔϚϯεΞοϓ

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