SGPD

• Collection of scripts to Gather Prformance Data at the time of performance issue
• It is licencesed under GNU Public Licence version 3, refer LICENSE.txt

perf.sh

• Collects generic performance data from all subsystem (CPU, Memory, I/O )
• Run the script as :

  # bash perf.sh 1 300
                  ^  ^
                  |  |
       Interval----  |
                     -----Number of iterations (300 X 1 sec = 5 mins )
  

Please note that the script needs to be run only when you are facing the issue.

• By default the script will run in interval of 2 seconds and 30 times.
• This script can be stopped using ctrl+c and still will capture the data.
• This will collect data like sar, vmstat, iostat, iotop, ps, top and create a tarball inside current directory which can be helpful finding out reason of high CPU/Memory usage, high load average, high iowait.
• This script is tested to work in RHEL/CentOS 5,6,7 and Fedora 23,24. You should have tools like systat, iotop installed for the script to work.
• Tools such as collectl are available which does this better, however it was created keeping simplycity in mind.
• It does not capture huge ammount of data like collectl and much easier to use.

perf_mem.sh

• Collects data regarding memory subsystem when run.
• Can be run when system is facing high memory utilisation to find out the culprit
• Collects the data once ( not in a loop like perf.sh - TODO )

# bash perf_mem.sh

perf_time.sh

• Collects strace, ptrace, time for some commands, helpful in case all the commands are slow on a system even though there is no high resource utilisation

# bash perf_time.sh