Linux--- 進程跟蹤手段

Linux--- 進程跟蹤手段

strace方法：
strace XXX -o ttt  --- 跟蹤XXX執行過程呼叫的系統呼叫，結果儲存到ttt檔案

strace -c XXX --- 跟蹤XXX每次呼叫系統呼叫耗費時長

strace -f XXX --- 跟蹤XXX所有進程包括子進程的系統呼叫

strace -e trace=open,write XXX  ---跟蹤XXX執行過程呼叫的open、write系統呼叫

strace -e trace=network -p 24567  ---跟24567進程所有與網路有關的系統呼叫

ltrace方法：
ltrace –s XXX  --- 跟蹤系統呼叫和庫函數呼叫

ltrace –e strcpy,strlen XXX --- 跟蹤進程呼叫的strcpy、strlen兩種庫函數

ltrace -l /lib64/librt.so.1 XXX --- 跟蹤XXX呼叫的指定動態庫中的庫函數

valgrind方法：
預設沒有安裝，必須手工安裝該工具。

valgrind --tool=memcheck --trace-children=yes XXX

--- 使用valgrind的memcheck工具對XXX命令執行記憶體檢測。

memcheck

Detects memory errors. It helps you tune your programs to behave correctly.

cachegrind

Profiles cache prediction. It helps you tune your programs to run faster.

callgrind

Works in a similar way to cachegrind but also gathers additional cache-profiling information.

exp-drd

Detects thread errors. It helps you tune your multi-threaded programs to behave correctly.

helgrind

Another thread error detector. Similar to exp-drd but uses different techniques for problem analysis.

massif

A heap profiler. Heap is an area of memory used for dynamic memory allocation.This tool helps you tune your program to use less memory.

lackey

An example tool showing instrumentation basics

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