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tests: increase CI integration test parallelism

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Increase the number of parallel integration tests in CI to save ~3-5
minutes per x86_64 run. The thread limit is driven by RAM and disk
space constraints, not CPU availability.

A new `PARALLEL_INTEGRATION_TESTS_NUM` environment variable controls
the thread count. In CI it is set explicitly (12 for x86_64, 25 for
ARM64); locally it falls back to `nproc / 4`, preserving the previous
behavior.

Only the first test group (`common_parallel`, `live_migration_parallel`)
uses the overridden value - subsequent groups (dbus_api, fw_cfg,
ivshmem, aarch64_acpi) continue to use the `nproc / 4` default.

On-behalf-of: SAP philipp.schuster@sap.com
Signed-off-by: Philipp Schuster <philipp.schuster@cyberus-technology.de>
This commit is contained in:
Philipp Schuster
2026-04-20 16:15:03 +02:00
committed by Bo Chen
parent 63cc26e1ce
commit 435d0ad47c
6 changed files with 39 additions and 11 deletions
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8
scripts/run_integration_tests_live_migration.sh
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@@ -87,7 +87,13 @@ sudo chmod a+rwX /dev/hugepages
export RUST_BACKTRACE=1
export RUSTFLAGS="$RUSTFLAGS"
time cargo nextest run $test_features --retries 3 --no-fail-fast --no-tests=pass --test-threads=$(($(nproc) / 4)) "live_migration_parallel::$test_filter" -- ${test_binary_args[*]}
TEST_THREADS_DEFAULT="$(($(nproc) / 4))"
if ! [[ "${PARALLEL_INTEGRATION_TESTS_NUM:-}" =~ ^[1-9][0-9]*$ ]]; then
PARALLEL_INTEGRATION_TESTS_NUM="${TEST_THREADS_DEFAULT}"
fi
echo "nproc:$(nproc), parallel_integration_tests:${PARALLEL_INTEGRATION_TESTS_NUM}"
time cargo nextest run $test_features --retries 3 --no-fail-fast --no-tests=pass --test-threads="${PARALLEL_INTEGRATION_TESTS_NUM}" "live_migration_parallel::$test_filter" -- ${test_binary_args[*]}
RES=$?