linux-kernel - [PATCH blktests v3 12/12] nvme: Make the number iterations configurable

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Date:   Wed,  3 May 2023 10:02:58 +0200
From:   Daniel Wagner <dwagner@...e.de>
To:     linux-nvme@...ts.infradead.org
Cc:     linux-kernel@...r.kernel.org, linux-block@...r.kernel.org,
        Chaitanya Kulkarni <kch@...dia.com>,
        Shin'ichiro Kawasaki <shinichiro@...tmail.com>,
        Hannes Reinecke <hare@...e.de>, Daniel Wagner <dwagner@...e.de>
Subject: [PATCH blktests v3 12/12] nvme: Make the number iterations configurable

Some tests hard code high values of iterations. This makes them run
relatively long compared to the other tests. Introduce a new environment
variable nvme_num_iter to allow tune the runtime.

Reviewed-by: Hannes Reinecke <hare@...e.de>
Signed-off-by: Daniel Wagner <dwagner@...e.de>
---
 Documentation/running-tests.md | 2 ++
 tests/nvme/016                 | 2 +-
 tests/nvme/017                 | 2 +-
 tests/nvme/rc                  | 1 +
 4 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/Documentation/running-tests.md b/Documentation/running-tests.md
index 6b34a253fd97..243975e43583 100644
--- a/Documentation/running-tests.md
+++ b/Documentation/running-tests.md
@@ -107,6 +107,8 @@ The NVMe tests can be additionally parameterized via environment variables.
 - nvme_img_size: '1G' (default)
   Run the tests with given image size in bytes. 'm' and 'g' postfix
 	are supported.
+- nvme_num_iter: 1000 (default)
+  The number of iterations a test should do.
 
 ### Running nvme-rdma nvmeof-mp srp tests
 
diff --git a/tests/nvme/016 b/tests/nvme/016
index 4eba30223a08..c0c31a55b190 100755
--- a/tests/nvme/016
+++ b/tests/nvme/016
@@ -17,7 +17,7 @@ test() {
 	echo "Running ${TEST_NAME}"
 
 	local port
-	local iterations=1000
+	local iterations="${nvme_num_iter}"
 	local loop_dev
 	local subsys_nqn="blktests-subsystem-1"
 
diff --git a/tests/nvme/017 b/tests/nvme/017
index 0248aee9bc41..e1674508f654 100755
--- a/tests/nvme/017
+++ b/tests/nvme/017
@@ -18,7 +18,7 @@ test() {
 
 	local port
 	local file_path
-	local iterations=1000
+	local iterations="${nvme_num_iter}"
 	local subsys_name="blktests-subsystem-1"
 
 	_setup_nvmet
diff --git a/tests/nvme/rc b/tests/nvme/rc
index a14458d5b80f..76ca683a40b4 100644
--- a/tests/nvme/rc
+++ b/tests/nvme/rc
@@ -18,6 +18,7 @@ def_hostnqn="$(cat /etc/nvme/hostnqn 2> /dev/null)"
 def_hostid="$(cat /etc/nvme/hostid 2> /dev/null)"
 nvme_trtype=${nvme_trtype:-"loop"}
 nvme_img_size=${nvme_img_size:-"1G"}
+nvme_num_iter=${nvme_num_iter:-"1000"}
 
 _nvme_requires() {
 	_have_program nvme
-- 
2.40.0