Cross Reference: /external/ltp/testcases/realtime/func/pi_perf

`Name`	`Date`	`Size`
Up to higher level directory
`.gitignore`	06-Dec-2017	`9`
`Makefile`	06-Dec-2017	`1K`
`pi_perf.c`	06-Dec-2017	`7.2K`
`run_auto.sh`	06-Dec-2017	`309`