Application stack information acquisition method and device, stack information analysis method and device

Abstract

The present invention discloses an application stack information acquisition method and apparatus, a stack information analysis method and apparatus. The application stack information acquisition method comprises the following steps: obtaining memory offset information of a current stack, wherein the memory offset information comprises a function address and a PC offset value; generating a memoryoffset structure storage file according to the obtained memory offset information; obtaining a mapping relationship between the virtual memory and the disk file, recording the mapping information according to the mapping relationship, and generating a memory mapping structure storage file, wherein the recorded mapping information comprises: a virtual memory address range, a memory file offset quantity, and a file path; and storing the memory offset structure storage file and the memory mapping structure storage file. According to embodiments of the present invention, when acquiring the application stack information, the storage capacity can be greatly reduced, so that the stack information occupies as little memory as possible, and the stack trace sampling can be obtained with minimal performance loss when the embodiments are applied to the application information tracking.

Description

technical field [0001] The present invention relates to the field of network information processing, in particular to an application stack information acquisition method, an application stack information acquisition device, a stack information analysis method and a stack information analysis device. Background technique [0002] At present, when it is necessary to collect stack information, the stack information is generally obtained through the dvm native function dvmFillInStackTraceInternal or the system standard java function Throwable::fillInstackTrace, and the obtained stack is the corresponding stack string content. [0003] This method of stack acquisition can correctly obtain stack information. However, since the stack is displayed as plain text information, the average layer of stack information is about 60 bytes. If the stack depth is 16 layers, then the memory size occupied by the stack It is about to reach 1k, and as the stack depth increases, the memory occupied...

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Problems solved by technology

[0003] This stack acquisition method can correctly obtain stack information. However, since the stack is displayed as plain text information, the average layer of stack information is about 60 bytes. If the stack depth is 16 layers, then the memory size occupied by the stack It will reach 1k, and as the stack depth increases, the memory occupied will continue to increase

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