Make tests more reliable with draid

Signed-off-by: Paul Dagnelie <[email protected]>

Author: Paul Dagnelie

tests/zfs-tests/tests/functional/events/slow_vdev_degraded_sit_out.ksh

@@ -78,8 +78,9 @@ for raidtype in raidz2 raidz3 draid2 draid3 ; do
 	log_must zinject -d $BAD_VDEV -A $action -T read $TESTPOOL2
 
 	# Do some reads and wait for us to sit out
-	for i in {1..100} ; do
-		dd if=/$TESTPOOL2/bigfile skip=$i bs=2M count=1 of=/dev/null
+	for i in {0..99} ; do
+		dd if=/$TESTPOOL2/bigfile skip=$i bs=2M count=1 of=/dev/null &
+		dd if=/$TESTPOOL2/bigfile skip=$((i + 100)) bs=2M count=1 of=/dev/null
 
 		sit_out=$(get_vdev_prop sit_out $TESTPOOL2 $SLOW_VDEV)
 		if [[ "$sit_out" == "on" ]] ; then

tests/zfs-tests/tests/functional/events/slow_vdev_sit_out.ksh

@@ -72,8 +72,9 @@ for raidtype in raidz raidz2 raidz3 draid1 draid2 draid3 ; do
 	log_must zinject -d $BAD_VDEV -D200:1 -T read $TESTPOOL2
 
 	# Do some reads and wait for us to sit out
-	for i in {1..100} ; do
-		dd if=/$TESTPOOL2/bigfile skip=$i bs=2M count=1 of=/dev/null
+	for i in {0..99} ; do
+		dd if=/$TESTPOOL2/bigfile skip=$i bs=2M count=1 of=/dev/null &
+		dd if=/$TESTPOOL2/bigfile skip=$((i + 100)) bs=2M count=1 of=/dev/null
 
 		sit_out=$(get_vdev_prop sit_out $TESTPOOL2 $BAD_VDEV)
 		if [[ "$sit_out" == "on" ]] ; then

tests/zfs-tests/tests/functional/events/slow_vdev_sit_out_neg.ksh

@@ -73,8 +73,9 @@ log_must eval [[ "$(get_vdev_prop sit_out $TESTPOOL2 $BAD_VDEV3)" == "off" ]]
 log_must zinject -d $BAD_VDEV1 -D200:1 -T read $TESTPOOL2
 
 # Do some reads and wait for us to sit out
-for i in {1..100} ; do
-	dd if=/$TESTPOOL2/bigfile skip=$i bs=2M count=1 of=/dev/null
+for i in {0..99} ; do
+	dd if=/$TESTPOOL2/bigfile skip=$i bs=2M count=1 of=/dev/null &
+	dd if=/$TESTPOOL2/bigfile skip=$((i + 100)) bs=2M count=1 of=/dev/null
 
 	sit_out=$(get_vdev_prop sit_out $TESTPOOL2 $BAD_VDEV1)
 	if [[ "$sit_out" == "on" ]] ; then
@@ -85,8 +86,9 @@ log_must test "$(get_vdev_prop sit_out $TESTPOOL2 $BAD_VDEV1)" == "on"
 
 log_must zinject -d $BAD_VDEV2 -D200:1 -T read $TESTPOOL2
 # Do some reads and wait for us to sit out
-for i in {1..100} ; do
-	dd if=/$TESTPOOL2/bigfile skip=$i bs=2M count=1 of=/dev/null
+for i in {0..99} ; do
+	dd if=/$TESTPOOL2/bigfile skip=$i bs=2M count=1 of=/dev/null &
+	dd if=/$TESTPOOL2/bigfile skip=$((i + 100)) bs=2M count=1 of=/dev/null
 
 	sit_out=$(get_vdev_prop sit_out $TESTPOOL2 $BAD_VDEV2)
 	if [[ "$sit_out" == "on" ]] ; then
@@ -97,8 +99,9 @@ log_must test "$(get_vdev_prop sit_out $TESTPOOL2 $BAD_VDEV2)" == "on"
 
 log_must zinject -d $BAD_VDEV3 -D200:1 -T read $TESTPOOL2
 # Do some reads and wait for us to sit out
-for i in {1..100} ; do
-	dd if=/$TESTPOOL2/bigfile skip=$i bs=2M count=1 of=/dev/null
+for i in {0..99} ; do
+	dd if=/$TESTPOOL2/bigfile skip=$i bs=2M count=1 of=/dev/null &
+	dd if=/$TESTPOOL2/bigfile skip=$((i + 100)) bs=2M count=1 of=/dev/null
 
 	sit_out=$(get_vdev_prop sit_out $TESTPOOL2 $BAD_VDEV3)
 	if [[ "$sit_out" == "on" ]] ; then