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realtime:documentation:howto:tools:ltp

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Linux Test Project (LTP)

Linux Test Project is a joint project started by SGI, OSDL and Bull developed and maintained by IBM, Cisco, Fujitsu, SUSE, Red Hat, Oracle and others. The project goal is to deliver tests to the open source community that validate the reliability, robustness, and stability of Linux.

More information at https://github.com/linux-test-project/ltp/blob/master/README.

The code for realtime test cases of ltp is available at: https://github.com/linux-test-project/ltp/tree/master/testcases/realtime

Installation

Following are the steps to quickly download ltp and build all the realtime related testcases:

#> git clone https://github.com/linux-test-project/ltp.git
#> cd ltp
#> make autotools
#> ./configure
#> cd testcases/realtime
#> ./configure
#> make

Detailed installation instructions can be found at https://github.com/linux-test-project/ltp/blob/master/INSTALL.

Following is the list of real-time testcases which are currently available in LTP:

  • ./func/hrtimer-prio
  • ./func/gtod_latency
  • ./func/prio-wake
  • ./func/thread_clock
  • ./func/pi-tests
  • ./func/prio-preempt
  • ./func/periodic_cpu_load
  • ./func/rt-migrate
  • ./func/matrix_mult
  • ./func/async_handler
  • ./func/sched_football
  • ./func/pthread_kill_latency
  • ./func/measurement
  • ./func/sched_latency
  • ./func/pi_perf
  • ./func/sched_jitter
  • ./perf/latency

Description of all the test cases: https://github.com/linux-test-project/ltp/blob/master/testcases/realtime/00_Descriptions.txt

Running testcases

To run all the test cases, just traverse to ${SRC}/testcases/realtime and run the following command as root:

Be careful with these tests!

Don't run them on production systems. Growfiles, doio, and iogen in particular stress the I/O capabilities of systems and while they should not cause problems on properly functioning systems, they are intended to find (or cause) problems. (Reference: https://github.com/linux-test-project/ltp/blob/master/README)

./run.sh -t all -l 1 (At the time of writing, the switch for loops, -l, is advertised as optional in usage. But, it really isnt.)

The user can also run functional, stress and performance test by providing func, stress and perf as argument to -t switch respectively.

realtime/documentation/howto/tools/ltp.1486601299.txt.gz · Last modified: 2017/02/09 00:48 by vedangpatel