@@ -983,6 +983,18 @@ of Avocado or ``make check-avocado``, and can also be queried using:
pyvenv/bin/avocado list tests/avocado
+To run tests in parallel, the ``AVOCADO_PARALLEL`` environment
+variable can be defined with a value different than ``1`` (its default
+value). Example:
+
+ .. code::
+
+ make check-avocado AVOCADO_PARALLEL=4
+
+Please exercise care when using parallel execution with the QEMU
+Avocado tests as a higher system load can cause time sensitive tests
+to timeout and be interrupted.
+
Manual Installation
~~~~~~~~~~~~~~~~~~~
@@ -94,6 +94,9 @@ TESTS_RESULTS_DIR=$(BUILD_DIR)/tests/results
ifndef AVOCADO_TESTS
AVOCADO_TESTS=tests/avocado
endif
+ifndef AVOCADO_PARALLEL
+ AVOCADO_PARALLEL=1
+endif
# Controls the output generated by Avocado when running tests.
# Any number of command separated loggers are accepted. For more
# information please refer to "avocado --help".
@@ -141,7 +144,8 @@ check-avocado: check-venv $(TESTS_RESULTS_DIR) get-vm-images
--show=$(AVOCADO_SHOW) run --job-results-dir=$(TESTS_RESULTS_DIR) \
$(if $(AVOCADO_TAGS),, --filter-by-tags-include-empty \
--filter-by-tags-include-empty-key) \
- $(AVOCADO_CMDLINE_TAGS) \
+ $(AVOCADO_CMDLINE_TAGS) --max-parallel-tasks=$(AVOCADO_PARALLEL) \
+ -p timeout_factor=$(AVOCADO_PARALLEL) \
$(if $(GITLAB_CI),,--failfast) $(AVOCADO_TESTS), \
"AVOCADO", "tests/avocado")
The updated Avocado version allows for the execution of tests in parallel. While on a CI environment it may not be a good idea to increase the parallelization level in a single runner, developers may leverage that on specific CI runners or on their development environments. This also multiplies the timeout for each test accordingly. The reason is that more concurrency can lead to less resources, and less resources can lead to some specific tests taking longer to complete and then time out. The timeout factor being used here is very conservative (being equal to the amount of parallel tasks). The worst this possibly oversized timeout value can do is making users wait a bit longer for the job to finish if a test hangs. Overall, users can expect a much quicker turnaround on most systems with a value such as 8 on a 12 core machine. Signed-off-by: Cleber Rosa <crosa@redhat.com> --- docs/devel/testing.rst | 12 ++++++++++++ tests/Makefile.include | 6 +++++- 2 files changed, 17 insertions(+), 1 deletion(-)