linux

History

Michael Ellerman 86450f20fb selftests/powerpc: Count instructions under scheduler pressure Have a task eat some cpu while we are counting instructions to create some scheduler pressure. The idea being to try and unearth any bugs we have in counting that only appear when context switching is happening. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>		2014-07-28 14:11:30 +10:00
..
breakpoints	breakpoint selftests: print failure status instead of cause make error	2012-12-17 17:15:27 -08:00
cpu-hotplug	tools/testing/selftests: don't assume the x bit is set on scripts	2013-07-03 16:08:07 -07:00
efivarfs	efivars: efivarfs_valid_name() should handle pstore syntax	2013-03-06 14:46:04 +00:00
ipc	tools/testing/selftests/ipc/msgque.c: handle msgget failure return correctly	2014-03-10 17:26:21 -07:00
kcmp	selftests: add .gitignore for kcmp	2013-07-03 16:08:07 -07:00
memory-hotplug	tools/testing/selftests: don't assume the x bit is set on scripts	2013-07-03 16:08:07 -07:00
mqueue	mqueue selftests: print failure status instead of cause make error	2012-12-17 17:15:26 -08:00
net	net: filter: BPF testsuite	2014-05-12 00:23:55 -04:00
powerpc	selftests/powerpc: Count instructions under scheduler pressure	2014-07-28 14:11:30 +10:00
ptrace	selftest: add a test case for PTRACE_PEEKSIGINFO	2013-04-30 17:04:05 -07:00
rcutorture	rcutorture: Note diffs from git commits	2014-05-14 09:46:25 -07:00
sysctl	tools/testing/selftests/sysctl: validate sysctl_writes_strict	2014-06-06 16:08:13 -07:00
timers	tools/testing/selftests: fix uninitialized variable	2013-10-16 21:35:53 -07:00
user	test: check copy_to/from_user boundary validation	2014-01-23 16:36:57 -08:00
vm	selftests: add .gitignore for vm	2013-07-03 16:08:07 -07:00
Makefile	tools/testing/selftests/sysctl: validate sysctl_writes_strict	2014-06-06 16:08:13 -07:00
README.txt	selftests: add a simple doc	2013-02-27 19:10:24 -08:00

README.txt

Linux Kernel Selftests

The kernel contains a set of "self tests" under the tools/testing/selftests/
directory. These are intended to be small unit tests to exercise individual
code paths in the kernel.

Running the selftests
=====================

To build the tests:

  $ make -C tools/testing/selftests


To run the tests:

  $ make -C tools/testing/selftests run_tests

- note that some tests will require root privileges.


To run only tests targetted for a single subsystem:

  $  make -C tools/testing/selftests TARGETS=cpu-hotplug run_tests

See the top-level tools/testing/selftests/Makefile for the list of all possible
targets.


Contributing new tests
======================

In general, the rules for for selftests are

 * Do as much as you can if you're not root;

 * Don't take too long;

 * Don't break the build on any architecture, and

 * Don't cause the top-level "make run_tests" to fail if your feature is
   unconfigured.