A sample tool to monitor a process group and log it CPU and MEM used.

> make          #to make PGM
> make clean    # to remove PGM

use ./PGM pgid pgid_num_to_monitor

example , if pgid is 100 :

./PGM pgid 100

use ./PGM file_to_run args_list example , if you want to run

./test.sh 10 # this test.sh need 1 parameter

and monitor it . you can simplely run :

./PGM ./test.sh 10

• the name of log file is : cmd + pid + start_time .

• any charactor in cmd that both not a digit and not a alphabet will become a '_' :

like __share_app_bwa_0_7_12_bwa_index_chr19_standard_contig__206046_1538103905

tail -n 6 your_log_file_name

and you will get a report like

         ###     Final report    1538103946      ###
         cmd  /share/app/bwa-0.7.12/bwa index chr19_standard.contig
         pid     206046
         CPU_max 98.5
         MEM_max 126148
         TIME    41 seconds

if you want to more than just a report , you can read the whole log file and get information for each snapshot .

default is 5 seconds a snapshot .

if you need another frequrency , modify the code of sleep function.