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selftests: ublk: add group-based test targets

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Add convenient Makefile targets for running specific test groups:
- run_generic, run_batch, run_null, run_loop, run_stripe, run_stress, etc.
- run_all for running all tests

Test groups are auto-detected from TEST_PROGS using pattern matching
(test_<group>_<num>.sh -> group), and targets are generated dynamically
using define/eval templates.

Supports parallel execution via JOBS variable:
- JOBS=1 (default): sequential with kselftest TAP output
- JOBS>1: parallel execution with xargs -P

Usage examples:
  make run_null           # Sequential execution
  make run_stress JOBS=4  # Parallel with 4 jobs
  make run_all JOBS=8     # Run all tests with 8 parallel jobs

With JOBS=8, running time of `make run_all` is reduced to 2m2s from 6m5s
in my test VM.

Signed-off-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Ming Lei 2026-02-01 00:23:36 +08:00 committed by Jens Axboe
parent 2021e6109d
commit b6bbc3bec1
1 changed files with 36 additions and 0 deletions
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36
tools/testing/selftests/ublk/Makefile
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@ -72,3 +72,39 @@ $(OUTPUT)/kublk: $(filter-out $(STANDALONE_UTILS),$(wildcard *.c))
check:
shellcheck -x -f gcc *.sh
# Test groups for running subsets of tests
# JOBS=1 (default): sequential with kselftest TAP output
# JOBS>1: parallel execution with xargs -P
# Usage: make run_null JOBS=4
JOBS ?= 1
# Auto-detect test groups from TEST_PROGS (test_<group>_<num>.sh -> group)
TEST_GROUPS := $(shell echo "$(TEST_PROGS)" | tr ' ' '\n' | \
sed 's/test_\([^_]*\)_.*/\1/' | sort -u)
# Template for group test targets
# $(1) = group name (e.g., null, generic, stress)
define RUN_GROUP
run_$(1): all
@if [ $$(JOBS) -gt 1 ]; then \
echo $$(filter test_$(1)_%.sh,$$(TEST_PROGS)) | tr ' ' '\n' | \
xargs -P $$(JOBS) -n1 sh -c './"$$$$0"' || true; \
else \
$$(call RUN_TESTS, $$(filter test_$(1)_%.sh,$$(TEST_PROGS))); \
fi
.PHONY: run_$(1)
endef
# Generate targets for each discovered test group
$(foreach group,$(TEST_GROUPS),$(eval $(call RUN_GROUP,$(group))))
# Run all tests (parallel when JOBS>1)
run_all: all
@if [ $(JOBS) -gt 1 ]; then \
echo $(TEST_PROGS) | tr ' ' '\n' | \
xargs -P $(JOBS) -n1 sh -c './"$$0"' || true; \
else \
$(call RUN_TESTS, $(TEST_PROGS)); \
fi
.PHONY: run_all