我应该如何解释“所有分配”？泄漏仪器中的数据？
我编写了一个应用程序，并正在测试它的内存泄漏，当我注意到每当我打开和关闭子视图时，泄漏模拟器中的“所有分配”类别都会不断增加其大小。
我最初认为这是内存泄漏，但它并没有在泄漏选项卡中显示为泄漏。
这是正常的吗？
I have written an app and was testing it for memory leaks when I noticed that the "all allocations" category in the leaks simulator keeps increasing its size whenever I open and close a sub-view.
I intially thought it was a memory leak, but it does not show up as a leak in the leaks tab.
Is this normal?
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这取决于您正在查看表格的哪一列。
“总体”和“总体字节”数字始终会上升，因为它们是在不考虑释放的情况下进行的分配的运行计数。
然而，当对象或内存块被分配时，“Live Bytes”和“# Living”数字应该上升，但当它们被释放时，“Live Bytes”和“# Living”数字应该下降。
重复打开和关闭子视图应该（根据图像或数据缓存）悬停在固定数量的活动字节和活动对象/内存块周围。
然而，正如您从屏幕截图中看到的那样，仪器有时会有点混乱。整个“# Transitory”列显示“0”，这显然是不正确的。临时对象只是一个已被分配并随后被释放的对象，即它是一个非生命对象。
(# Living + # Transitory == # 总之)
每当 Instruments 给我那一列零时，我就会退出当前运行并开始新的运行。
至于Leaks Instrument，它只会显示那些不再有任何指针指向它们的对象或内存块。如果程序不断分配越来越多的对象/内存块但保留指向它们的指针，则泄漏仪器将不会显示它们。
It depends which column of the table you are looking at.
The 'Overall' and 'Overall Bytes' figures will always go up, since they are a running count of allocations made with no account of deallocations.
However, the 'Live Bytes' and '# Living' figures should go up when an object or block of memory has been allocated, but should go down when they are deallocated.
Repeatedly opening and closing a sub-view should (subject to image or data caching) hover around a fixed number of live bytes and living objects / memory blocks.
Instruments sometimes gets a bit confused, however, as you can see from the screenshot. The whole '# Transitory' column is showing '0', which is obviously incorrect. A transitory object is just one that has been allocated and subsequently deallocated, i.e. it's a non-living object.
(# Living + # Transitory == # Overall)
Whenever Instruments gives me that column of zeros, I quit the current run and start a new one.
As for the Leaks Instrument, it will only show those objects or memory blocks that no longer have any pointers pointing to them. If a program continually allocates more and more objects / memory blocks but retains pointers to them, the Leaks Instrument won't show them.
这很有意义，不是吗？每次您在应用程序中执行某些操作时，可能会分配一些内容，例如不同的子视图。因此总分配量会增加。这只是总分配量的记录。
That would make sense would it not? Every time you do something in the app, something is probably allocated such as your different subviews. Therefore total allocations will increase.It's just a record of the total allocations.