From: Shin'ichiro Kawasaki <shinichiro.kawasaki@xxxxxxx>
The number of 'sectors with data' is counted and used to determine the
direction of the first I/O of a random read/write ZBD workload. To
initialize the number, min_zone and max_zone fields in struct fio_file
are referred. There was a code bug that was recently fixed where
min_zone and max_zone fields were not initialized when all zones in I/O
region were conventional zones. This led to an uninitialized number of
sectors with data, and the write direction was always set for random
workloads.
Add a test case to perform random read/write workload on an I/O region
with both sequential and conventional zones. Check that both read and
write I/Os are executed.
Signed-off-by: Shin'ichiro Kawasaki <shinichiro.kawasaki@xxxxxxx>
Signed-off-by: Dmitry Fomichev <dmitry.fomichev@xxxxxxx>
---
t/zbd/test-zbd-support | 28 ++++++++++++++++++++++++++++
1 file changed, 28 insertions(+)
diff --git a/t/zbd/test-zbd-support b/t/zbd/test-zbd-support
index 217fdd10..80763561 100755
--- a/t/zbd/test-zbd-support
+++ b/t/zbd/test-zbd-support
@@ -1079,6 +1079,34 @@ test52() {
check_reset_count -eq 0 || return $?
}
+# Check both reads and writes are executed by random I/O to conventional zones.
+test53() {
+ local off capacity io read_b=0 written_b=0
+
+ require_zbd || return $SKIP_TESTCASE
+ require_conv_zones 4 || return $SKIP_TESTCASE
+
+ off=$((first_sequential_zone_sector * 512 - 4 * zone_size))
+ capacity=$(total_zone_capacity 4 $off $dev)
+ run_fio --name=job --filename=${dev} --rw=randrw --bs=64K \
+ --size=$((4 * zone_size)) "$(ioengine "psync")" --offset=${off}\
+ --zonemode=zbd --direct=1 --zonesize=${zone_size} \
+ ${job_var_opts[@]} \
+ >> "${logfile}.${test_number}" 2>&1 || return $?
+
+ written_b=$(fio_written <"${logfile}.${test_number}")
+ read_b=$(fio_read <"${logfile}.${test_number}")
+ io=$((written_b + read_b))
+ echo "Number of bytes read: $read_b" >>"${logfile}.${test_number}"
+ echo "Number of bytes written: $written_b" >>"${logfile}.${test_number}"
+ echo "Total number of bytes read and written: $io <> $capacity" \
+ >>"${logfile}.${test_number}"
+ if ((io==capacity && written_b != 0 && read_b != 0)); then
+ return 0
+ fi
+ return 1
+}
+
tests=()
dynamic_analyzer=()
reset_all_zones=
--
2.28.0
