blocks|key|1263044|text|通过Xcode方案切换Metal验证：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1263045|方案>编辑方案..。>+Run+>诊断>+Metal验证。|blockquote|1263046|这是一个复选框，所以可能的选项是Enabled或Disabled。|offset|length|style|CODE|1263047|禁用设置enableGPUValidationMode+=+1文件中的键.xcscheme。|1263048|禁用之后，Xcode不再记录"Metal验证已启用“日志消息。|1263049|注意:在Xcode+11及更低版本中，该选项出现在计划编辑器的“选项”选项卡中(而不是“诊断”选项卡)。|BOLD|1263050|entityMap^0|0|0|G|7|O|8|0|4|R|10|9|0|0|0|1G|0^^$0|@$1|2|3|4|5|6|7|T|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|U|8|@]|9|@]|A|$]]|$1|E|3|F|5|6|7|V|8|@$G|W|H|X|I|J]|$G|Y|H|Z|I|J]]|9|@]|A|$]]|$1|K|3|L|5|6|7|10|8|@$G|11|H|12|I|J]|$G|13|H|14|I|J]]|9|@]|A|$]]|$1|M|3|N|5|6|7|15|8|@]|9|@]|A|$]]|$1|O|3|P|5|6|7|16|8|@$G|17|H|18|I|Q]]|9|@]|A|$]]|$1|R|3|-4|5|6|7|19|8|@]|9|@]|A|$]]]|S|$]]

Toggle Metal API Validation via your Xcode Scheme:
<blockquote>
Scheme &gt; Edit Scheme... &gt; Run &gt; Diagnostics &gt; Metal API Validation.
</blockquote>
It's a checkbox, so the possible options are <code>Enabled</code> or <code>Disabled</code>.
Disabling sets the key <code>enableGPUValidationMode = 1</code> in your <code>.xcscheme</code> file.
After disabling, Xcode no longer logs the &quot;Metal API Validation Enabled&quot; log message.
Note: In Xcode 11 and below, the option appears in the &quot;Options&quot; tab of the Scheme Editor (instead of the &quot;Diagnostics&quot; tab).

blocks|key|419464|text|我也收到了同样的信息。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|419465|在滚动视图闭包结束时，我有一个.onDelete(perform:+deleteLocations)。|offset|length|style|CODE|419466|我将滚动视图更改为列表，消息就消失了。|419467|entityMap^0|0|F|Z|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|M|8|@$D|N|E|O|F|G]]|9|@]|A|$]]|$1|H|3|I|5|6|7|P|8|@]|9|@]|A|$]]|$1|J|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|K|$]]

I had the exact same message.
I had a <code>.onDelete(perform: deleteLocations)</code> at the end of a scrollview closure.
I changed the scrollview to a list and the message went away.

blocks|key|1051068|text|我最近开始为我的macos应用程序进行更新。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1051069|它运行良好，没有出现错误，但随后我从一个旧的xcode项目中添加了一个故事板文件，当我触发.loadWindow()时，我在日志中看到了这些内容：|1051070|blockquote|1051071|“启用金属API验证”|unordered-list-item|1051072|对于数据文件:+errno+=2(没有此类文件或目录)，fopen失败|1051073|然后我看了看界面生成器，我的一个标签处于一个奇怪的位置。因此，我将标签居中，再次运行app，“failed+:+errno+=2(没有这样的文件或目录)”警告消失了。它仍然说，每当我从文件加载该窗口时，就会“启用金属API验证”，但这并不困扰我。|offset|length|style|BOLD|1051074|所以我认为这是关于操作系统是如何绘制窗口和视图的，或者是关于界面构建器版本差异的。|1051075|entityMap^0|0|0|0|0|0|1A|V|2K|9|0|0^^$0|@$1|2|3|4|5|6|7|U|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|V|8|@]|9|@]|A|$]]|$1|D|3|-4|5|E|7|W|8|@]|9|@]|A|$]]|$1|F|3|G|5|H|7|X|8|@]|9|@]|A|$]]|$1|I|3|J|5|H|7|Y|8|@]|9|@]|A|$]]|$1|K|3|L|5|6|7|Z|8|@$M|10|N|11|O|P]|$M|12|N|13|O|P]]|9|@]|A|$]]|$1|Q|3|R|5|6|7|14|8|@]|9|@]|A|$]]|$1|S|3|-4|5|6|7|15|8|@]|9|@]|A|$]]]|T|$]]

I recently started to work for an update to my macos app.
It worked well without errors but then i added a storyboard file from an older xcode project and when i fire .loadWindow() i saw these on my log:
<blockquote>
<ul>
<li>&quot;Metal API Validation Enabled&quot;</li>
<li>&quot;fopen failed for data file: errno = 2 (No such file or directory)&quot;</li>
</ul>
</blockquote>
Then i looked at the interface builder and one of my labels was in a weird position.
So i centered that label and run app again and the &quot;fopen failed for data file: errno = 2 (No such file or directory)&quot; warning gone.
It still says &quot;Metal API Validation Enabled&quot; whenever i load that window from that .storyboard file but that doesn't bother me.
So i think this is something about how operating system is drawing windows and views or maybe something about interface builder version difference.

blocks|key|1051103|text|如何禁用消息：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1051104|在窗口顶部选择您的方案。在下拉菜单中单击Edit+Scheme，转到Diagnostics并取消Metal+API+Validation复选框.|offset|length|style|CODE|1051105|金属在我的应用程序中使用吗？|1051106|是的，即使您的代码没有直接与GPU交互，许多高级框架也会这样做--特别是Core+Image、SpriteKit和SceneKit。例如，我在我的应用程序中缩小了烦人的"Metal验证启用“消息，直到下面这一行：|1051107|layer.backgroundColor+=+NSColor(patternImage:+image).cgColor|code-block|syntax|javascript|1051108|我应该禁用Metal验证吗？|1051109|启用验证使每个Metal调用都被选中，这导致了一个"对CPU性能的影响很小，但可以测量。“--此验证的目的是|1051110|检查不正确调用Metal的代码，包括资源创建、编码金属命令和其他常见任务中的错误。|blockquote|1051111|像核心图像这样的苹果框架不正确地使用金属API的可能性很小，所以如果你的应用程序只使用那些高级的苹果框架，那么我想说你应该觉得禁用API验证是安全的。摆脱那些该死的输出信息是值得的。|1051112|entityMap|0|LINK|mutability|MUTABLE|url|https://developer.apple.com/documentation/metal/diagnosing_metal_programming_issues_early^0|0|K|B|Y|B|1C|K|0|0|10|A|1B|9|1L|8|0|0|0|Q|I|0|0|0|0^^$0|@$1|2|3|4|5|6|7|17|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|18|8|@$D|19|E|1A|F|G]|$D|1B|E|1C|F|G]|$D|1D|E|1E|F|G]]|9|@]|A|$]]|$1|H|3|I|5|6|7|1F|8|@]|9|@]|A|$]]|$1|J|3|K|5|6|7|1G|8|@$D|1H|E|1I|F|G]|$D|1J|E|1K|F|G]|$D|1L|E|1M|F|G]]|9|@]|A|$]]|$1|L|3|M|5|N|7|1N|8|@]|9|@]|A|$O|P]]|$1|Q|3|R|5|6|7|1O|8|@]|9|@]|A|$]]|$1|S|3|T|5|6|7|1P|8|@]|9|@$D|1Q|E|1R|1|1S]]|A|$]]|$1|U|3|V|5|W|7|1T|8|@]|9|@]|A|$]]|$1|X|3|Y|5|6|7|1U|8|@]|9|@]|A|$]]|$1|Z|3|-4|5|6|7|1V|8|@]|9|@]|A|$]]]|10|$11|$5|12|13|14|A|$15|16]]]]

<h3>How to disable the message:</h3>
Select your scheme at the top of the window. Click <code>Edit Scheme</code> in the drop-down, go to <code>Diagnostics</code> and untick the <code>Metal API Validation</code> checkbox.
<h3>Is Metal being used in my app?</h3>
Yes, even if your code isn't interacting directly with the GPU, many high-level frameworks do -- specifically <code>Core Image</code>, <code>SpriteKit</code>, and <code>SceneKit</code>. For example, I narrowed the pesky &quot;Metal API Validation Enabled&quot; message in my app down to this line:
<pre class="lang-swift prettyprint-override"><code>layer.backgroundColor = NSColor(patternImage: image).cgColor
</code></pre>
<h3>Should I disable Metal API validation?</h3>
Enabling validation makes every Metal API call be checked, which causes a &quot;<a href="https://developer.apple.com/documentation/metal/diagnosing_metal_programming_issues_early" rel="nofollow noreferrer">small, but measurable, impact on CPU performance.</a>&quot; The purpose of this validation is to
<blockquote>
check for code that calls the Metal API incorrectly, including errors in resource creation, encoding Metal commands, and other common tasks.
</blockquote>
There's a very low chance that Apple frameworks like Core Image are using the Metal API incorrectly, so if your app only uses those high-level Apple frameworks, then I'd say you should feel safe to disable API validation. Getting rid of that damn output message is worth the risk.

I'm building a macOS app via Xcode. Every time I build, I get the log output:

<blockquote>
 Metal API Validation Enabled
</blockquote>

To my knowledge my app is not using any Metal features. I'm not using hardware-accelerated 3D graphics or shaders or video game features or anything like that.

Why is Xcode printing Metal API log output?

Is Metal being used in my app? Can I or should I disable it?

How can I disable this "Metal API Validation Enabled" log message?

Xcode logging: "Metal API Validation Enabled"

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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我正在通过Xcode构建一个macOS应用程序。每次构建时，我都会得到日志输出：启用金属API验证据我所知，我的应用程序没有使用任何金属功能。我不使用硬件加速3D图形或着色器或视频游戏功能或类似的东西。为什么Xcode打印金属API日志输出？金属在我的应用程序中使用吗？我可以或者应该禁用它吗？我如何禁用这条“启用金属A...

问Xcode日志记录：“启用金属API验证”
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