How to locate code issues under Linux

1, first through the top command to find the high CPU consumption process ID hypothesis is 11876

2. Perform top-p 11876 to monitor the process individually

3, in the 2nd step of the monitoring interface input h, get all the thread information under the current process

4. Find the thread number that consumes the CPU very high, assuming it is 11354

5. Execute jstack 11876 to dump the current process and output all thread information

6 Take the 4th step to get the thread number 11354 turns into 16 binary is 0x2c5a

7 according to the 6th step of the 0X2C5A in the 5th step of the thread information to find the corresponding thread content

8 Interpreting thread information, locating specific code locations

It's easy!!

How to locate code issues under Linux