chenglch db37fd5dc0 Add script to analyze the db performance of xcat command (#3899) ...

This patch add a python script to calculate the time and the call
times from the command log file and syslog file.

Note: To get the correct data, the `dbtracelevel` option in site
table should be set to 4

implement: #3713

Support option:
```
usage: dbstats [--clusterlog CLUSTERLOG] [--commandlog COMMANDLOG] [-n NUM]
               [-c COMMAND]

Optional arguments:
  --clusterlog CLUSTERLOG
                        The syslog file of xcat.
  --commandlog COMMANDLOG
                        The command log file of xcat.
  -n NUM, --num NUM     The recent count of commands to analyze
  -c COMMAND, --command COMMAND
                        The specified command to track
```

2017-09-14 17:36:54 +08:00

..

dbstats.py

Add script to analyze the db performance of xcat command (#3899)

2017-09-14 17:36:54 +08:00