适用于iPad应用程序的Xcode Instruments输出解释 [英] Xcode Instruments output interpretation for iPad app

问题描述

在分配下的工具"中，对于所有分配"行，活动字节"和总字节"显示的内存量非常小(〜2.5MB)，并且看起来非常稳定.但是#生活"和#总体"持续上升.

In the Instruments under Allocations, for the "All Allocations" line the "Live Bytes" and "Overall Bytes" show a very small amount of memory (~2.5MB) and they seem to be very stable. But the "# Living" and "# Overall" keep going up gradually.

问题:就找出我的应用程序的内存占用而言，哪几列更重要? "Live Bytes"与#Living"和"Overall Bytes"与#Total"之间有什么区别?

Question: Which columns are more important in term of finding out memory footprint for my app? What are differences between "Live Bytes" vs "# Living" and "Overall Bytes" vs "# Overall"?

顺便说一句:仪器完全没有泄漏内存.

BTW: Instruments shows no leaks memory at all.

谢谢.

推荐答案

所有分配"类别的活动字节数"列是对应用程序内存占用的最佳估计.

The Live Bytes column for the All Allocations category is the best estimate of your app's memory footprint.

活动字节数"列告诉您给定类别当前分配的内存量. #Living"列告诉您给定类别的净内存分配数. 总字节数"列告诉您分配的内存总量. #总体"列告诉您内存分配的总数.

The Live Bytes column tells you the amount of currently allocated memory for a given category. The # Living column tells you the number of net memory allocations for a given category. The Overall Bytes column tells you the total amount of allocated memory. The # Overall column tells you the total number of memory allocations.

如果使用泄漏"模板，则分配"工具将配置为仅跟踪活动的内存分配.当您仅跟踪活动内存分配时，活动字节数"和总字节数"列将相同，并且活动数"和总字节数"列将相同.单击分配"工具旁边的信息"按钮，可以配置分配"工具记录的内容.

If you use the Leaks template, the Allocations instrument is configured to track only active memory allocations. When you track only active memory allocations, the Live Bytes and Overall Bytes columns are going to be the same, and the # Living and # Overall columns are going to be the same. Clicking the Info button next to the Allocations instrument lets you configure what the Allocations instrument records.

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