diff --git a/tests/zfs-tests/include/libtest.shlib b/tests/zfs-tests/include/libtest.shlib
index ad2c26976d..828b842a65 100644
--- a/tests/zfs-tests/include/libtest.shlib
+++ b/tests/zfs-tests/include/libtest.shlib
@@ -3376,6 +3376,7 @@ function write_compressible
 			done
 		done
 	else
+		command -v fio > /dev/null || log_unsupported "fio missing"
 		log_must eval fio \
 		    --name=job \
 		    --fallocate=0 \
diff --git a/tests/zfs-tests/tests/functional/arc/setup.ksh b/tests/zfs-tests/tests/functional/arc/setup.ksh
index 37b8f352cc..60699d365e 100755
--- a/tests/zfs-tests/tests/functional/arc/setup.ksh
+++ b/tests/zfs-tests/tests/functional/arc/setup.ksh
@@ -26,5 +26,7 @@
 
 . $STF_SUITE/include/libtest.shlib
 
+is_freebsd && ! python3 -c 'import sysctl' 2>/dev/null && log_unsupported "python3 sysctl module missing"
+
 DISK=${DISKS%% *}
 default_setup $DISK
diff --git a/tests/zfs-tests/tests/functional/cache/cache_012_pos.ksh b/tests/zfs-tests/tests/functional/cache/cache_012_pos.ksh
index edefe9c1bf..be250158bf 100755
--- a/tests/zfs-tests/tests/functional/cache/cache_012_pos.ksh
+++ b/tests/zfs-tests/tests/functional/cache/cache_012_pos.ksh
@@ -44,6 +44,8 @@
 
 verify_runnable "global"
 
+command -v fio > /dev/null || log_unsupported "fio missing"
+
 log_assert "Looping around a cache device succeeds."
 
 function cleanup
diff --git a/tests/zfs-tests/tests/functional/cli_user/misc/arc_summary_001_pos.ksh b/tests/zfs-tests/tests/functional/cli_user/misc/arc_summary_001_pos.ksh
index befbea986e..5c3d06f228 100755
--- a/tests/zfs-tests/tests/functional/cli_user/misc/arc_summary_001_pos.ksh
+++ b/tests/zfs-tests/tests/functional/cli_user/misc/arc_summary_001_pos.ksh
@@ -27,34 +27,15 @@
 
 . $STF_SUITE/include/libtest.shlib
 
-log_assert "arc_summary generates output and doesn't return an error code"
+is_freebsd && ! python3 -c 'import sysctl' 2>/dev/null && log_unsupported "python3 sysctl module missing"
 
-# Depending on which version of arc_summary is installed some command
-# line options may not be available.  The python3 version includes
-# several additional flags.
-python3 -V 2>&1 > /dev/null
-if (( $? )); then
-	# Some systems have Python 3 installed, but only older versions
-	# that don't have the subprocess.run() functionality. We catch
-	# these with a separate test. Remove this when all systems have
-	# reached 3.5 or greater
-	VERSIONPYTEST=$(python3 -V)
-	if [[ ${VERSIONPYTEST:9:1} -lt 5 ]]; then
-		set -A args  "" "-a" "-d" "-p 1"
-	else
-		set -A args  "" "-a" "-d" "-p 1" "-g" "-s arc" "-r"
-	fi
-else
-	set -A args  "" "-a" "-d" "-p 1"
-fi
+log_assert "arc_summary generates output and doesn't return an error code"
 
 # Without this, the below checks aren't going to work the way we hope...
 set -o pipefail
 
-typeset -i i=0
-while [[ $i -lt ${#args[*]} ]]; do
-	log_must eval "arc_summary ${args[i]} > /dev/null"
-	((i = i + 1))
+for arg in "" "-a" "-d" "-p 1" "-g" "-s arc" "-r"; do
+	log_must eval "arc_summary $arg > /dev/null"
 done
 
 log_must eval "arc_summary | head > /dev/null"
diff --git a/tests/zfs-tests/tests/functional/cli_user/misc/arc_summary_002_neg.ksh b/tests/zfs-tests/tests/functional/cli_user/misc/arc_summary_002_neg.ksh
index de747fba89..59fe057e8c 100755
--- a/tests/zfs-tests/tests/functional/cli_user/misc/arc_summary_002_neg.ksh
+++ b/tests/zfs-tests/tests/functional/cli_user/misc/arc_summary_002_neg.ksh
@@ -27,11 +27,11 @@
 
 . $STF_SUITE/include/libtest.shlib
 
-typeset args=("-x" "-5" "-p 7" "--err" "-@")
+is_freebsd && ! python3 -c 'import sysctl' 2>/dev/null && log_unsupported "python3 sysctl module missing"
 
 log_assert "arc_summary generates an error code with invalid options"
 
-for arg in "${args[@]}"; do
+for arg in "-x" "-5" "-p 7" "--err" "-@"; do
         log_mustnot eval "arc_summary $arg > /dev/null"
 done
 
diff --git a/tests/zfs-tests/tests/functional/cli_user/misc/arcstat_001_pos.ksh b/tests/zfs-tests/tests/functional/cli_user/misc/arcstat_001_pos.ksh
index ab574731fe..af301829c1 100755
--- a/tests/zfs-tests/tests/functional/cli_user/misc/arcstat_001_pos.ksh
+++ b/tests/zfs-tests/tests/functional/cli_user/misc/arcstat_001_pos.ksh
@@ -1,4 +1,4 @@
-#! /bin/ksh -p
+#!/bin/ksh -p
 #
 # CDDL HEADER START
 #
@@ -27,6 +27,8 @@
 
 . $STF_SUITE/include/libtest.shlib
 
+is_freebsd && ! python3 -c 'import sysctl' 2>/dev/null && log_unsupported "python3 sysctl module missing"
+
 set -A args  "" "-s \",\"" "-x" "-v" \
     "-f time,hit%,dh%,ph%,mh%"
 
@@ -38,4 +40,3 @@ while [[ $i -lt ${#args[*]} ]]; do
         ((i = i + 1))
 done
 log_pass "arcstat generates output and doesn't return an error code"
-
diff --git a/tests/zfs-tests/tests/functional/compression/l2arc_compressed_arc.ksh b/tests/zfs-tests/tests/functional/compression/l2arc_compressed_arc.ksh
index 5980ce1569..57f6b6a024 100755
--- a/tests/zfs-tests/tests/functional/compression/l2arc_compressed_arc.ksh
+++ b/tests/zfs-tests/tests/functional/compression/l2arc_compressed_arc.ksh
@@ -52,6 +52,8 @@ export DIRECT=1
 
 verify_runnable "global"
 
+command -v fio > /dev/null || log_unsupported "fio missing"
+
 log_assert "L2ARC with compressed_arc enabled succeeds."
 
 origin_carc_setting=$(get_tunable COMPRESSED_ARC_ENABLED)
diff --git a/tests/zfs-tests/tests/functional/compression/l2arc_compressed_arc_disabled.ksh b/tests/zfs-tests/tests/functional/compression/l2arc_compressed_arc_disabled.ksh
index 4c3b6a61c2..c8f4111744 100755
--- a/tests/zfs-tests/tests/functional/compression/l2arc_compressed_arc_disabled.ksh
+++ b/tests/zfs-tests/tests/functional/compression/l2arc_compressed_arc_disabled.ksh
@@ -52,6 +52,8 @@ export DIRECT=1
 
 verify_runnable "global"
 
+command -v fio > /dev/null || log_unsupported "fio missing"
+
 log_assert "L2ARC with compressed_arc disabled succeeds."
 
 origin_carc_setting=$(get_tunable COMPRESSED_ARC_ENABLED)
diff --git a/tests/zfs-tests/tests/functional/compression/l2arc_encrypted.ksh b/tests/zfs-tests/tests/functional/compression/l2arc_encrypted.ksh
index fb460daf68..f7b8a4b950 100755
--- a/tests/zfs-tests/tests/functional/compression/l2arc_encrypted.ksh
+++ b/tests/zfs-tests/tests/functional/compression/l2arc_encrypted.ksh
@@ -53,6 +53,8 @@ export DIRECT=1
 
 verify_runnable "global"
 
+command -v fio > /dev/null || log_unsupported "fio missing"
+
 log_assert "L2ARC with encryption enabled succeeds."
 
 origin_carc_setting=$(get_tunable COMPRESSED_ARC_ENABLED)
diff --git a/tests/zfs-tests/tests/functional/compression/l2arc_encrypted_no_compressed_arc.ksh b/tests/zfs-tests/tests/functional/compression/l2arc_encrypted_no_compressed_arc.ksh
index 45ef489c31..0838b2c93e 100755
--- a/tests/zfs-tests/tests/functional/compression/l2arc_encrypted_no_compressed_arc.ksh
+++ b/tests/zfs-tests/tests/functional/compression/l2arc_encrypted_no_compressed_arc.ksh
@@ -53,6 +53,8 @@ export DIRECT=1
 
 verify_runnable "global"
 
+command -v fio > /dev/null || log_unsupported "fio missing"
+
 log_assert "L2ARC with compressed_arc disabled succeeds."
 
 origin_carc_setting=$(get_tunable COMPRESSED_ARC_ENABLED)
diff --git a/tests/zfs-tests/tests/functional/io/io_uring.ksh b/tests/zfs-tests/tests/functional/io/io_uring.ksh
index 2d2b18f8bb..1ee5cee522 100755
--- a/tests/zfs-tests/tests/functional/io/io_uring.ksh
+++ b/tests/zfs-tests/tests/functional/io/io_uring.ksh
@@ -44,7 +44,7 @@ if [[ $(linux_version) -lt $(linux_version "5.1") ]]; then
 	log_unsupported "Requires io_uring support"
 fi
 
-fio --ioengine=io_uring --parse-only || log_unsupported "io_uring support required"
+fio --ioengine=io_uring --parse-only || log_unsupported "fio io_uring support required"
 
 function cleanup
 {
diff --git a/tests/zfs-tests/tests/functional/io/libaio.ksh b/tests/zfs-tests/tests/functional/io/libaio.ksh
index c434ad90dd..ef100209be 100755
--- a/tests/zfs-tests/tests/functional/io/libaio.ksh
+++ b/tests/zfs-tests/tests/functional/io/libaio.ksh
@@ -39,6 +39,8 @@
 
 verify_runnable "global"
 
+command -v fio > /dev/null || log_unsupported "fio missing"
+
 function cleanup
 {
 	log_must rm -f "$mntpnt/rw*"
diff --git a/tests/zfs-tests/tests/functional/io/mmap.ksh b/tests/zfs-tests/tests/functional/io/mmap.ksh
index e9600787a8..742c1f08f1 100755
--- a/tests/zfs-tests/tests/functional/io/mmap.ksh
+++ b/tests/zfs-tests/tests/functional/io/mmap.ksh
@@ -37,7 +37,7 @@
 #	2. Repeat the test with additional fio(1) options.
 #
 
-if ! compare_version_gte $(fio --version) "fio-2.3"; then
+if ! compare_version_gte "$(fio --version)" "fio-2.3"; then
 	log_unsupported "Requires fio-2.3 or newer"
 fi
 
diff --git a/tests/zfs-tests/tests/functional/io/posixaio.ksh b/tests/zfs-tests/tests/functional/io/posixaio.ksh
index 0758164c16..c720aef953 100755
--- a/tests/zfs-tests/tests/functional/io/posixaio.ksh
+++ b/tests/zfs-tests/tests/functional/io/posixaio.ksh
@@ -39,6 +39,8 @@
 
 verify_runnable "global"
 
+command -v fio > /dev/null || log_unsupported "fio missing"
+
 function cleanup
 {
 	log_must rm -f "$mntpnt/rw*"
diff --git a/tests/zfs-tests/tests/functional/io/psync.ksh b/tests/zfs-tests/tests/functional/io/psync.ksh
index efeb1103d8..8feb87d93a 100755
--- a/tests/zfs-tests/tests/functional/io/psync.ksh
+++ b/tests/zfs-tests/tests/functional/io/psync.ksh
@@ -39,6 +39,8 @@
 
 verify_runnable "global"
 
+command -v fio > /dev/null || log_unsupported "fio missing"
+
 function cleanup
 {
 	log_must rm -f "/$TESTPOOL/rw*"
diff --git a/tests/zfs-tests/tests/functional/io/sync.ksh b/tests/zfs-tests/tests/functional/io/sync.ksh
index 83f346c697..aaaa126efb 100755
--- a/tests/zfs-tests/tests/functional/io/sync.ksh
+++ b/tests/zfs-tests/tests/functional/io/sync.ksh
@@ -39,6 +39,8 @@
 
 verify_runnable "global"
 
+command -v fio > /dev/null || log_unsupported "fio missing"
+
 function cleanup
 {
 	log_must rm -f "$mntpnt/rw*"
diff --git a/tests/zfs-tests/tests/functional/l2arc/l2arc_arcstats_pos.ksh b/tests/zfs-tests/tests/functional/l2arc/l2arc_arcstats_pos.ksh
index 3e76347b02..69d60ab8bb 100755
--- a/tests/zfs-tests/tests/functional/l2arc/l2arc_arcstats_pos.ksh
+++ b/tests/zfs-tests/tests/functional/l2arc/l2arc_arcstats_pos.ksh
@@ -40,6 +40,8 @@
 
 verify_runnable "global"
 
+command -v fio > /dev/null || log_unsupported "fio missing"
+
 log_assert "L2ARC MFU/MRU arcstats do not leak."
 
 function cleanup
diff --git a/tests/zfs-tests/tests/functional/l2arc/l2arc_l2miss_pos.ksh b/tests/zfs-tests/tests/functional/l2arc/l2arc_l2miss_pos.ksh
index 783484f52c..c9d5d7ffe1 100755
--- a/tests/zfs-tests/tests/functional/l2arc/l2arc_l2miss_pos.ksh
+++ b/tests/zfs-tests/tests/functional/l2arc/l2arc_l2miss_pos.ksh
@@ -38,6 +38,8 @@
 
 verify_runnable "global"
 
+command -v fio > /dev/null || log_unsupported "fio missing"
+
 log_assert "l2arc_misses does not increment upon reads from a pool without l2arc."
 
 function cleanup
diff --git a/tests/zfs-tests/tests/functional/l2arc/l2arc_mfuonly_pos.ksh b/tests/zfs-tests/tests/functional/l2arc/l2arc_mfuonly_pos.ksh
index 5d0198c90c..f2bada0ebb 100755
--- a/tests/zfs-tests/tests/functional/l2arc/l2arc_mfuonly_pos.ksh
+++ b/tests/zfs-tests/tests/functional/l2arc/l2arc_mfuonly_pos.ksh
@@ -39,6 +39,8 @@
 
 verify_runnable "global"
 
+command -v fio > /dev/null || log_unsupported "fio missing"
+
 log_assert "l2arc_mfuonly does not cache MRU buffers."
 
 function cleanup
diff --git a/tests/zfs-tests/tests/functional/l2arc/persist_l2arc_001_pos.ksh b/tests/zfs-tests/tests/functional/l2arc/persist_l2arc_001_pos.ksh
index 0a9049490c..95efa3f2d8 100755
--- a/tests/zfs-tests/tests/functional/l2arc/persist_l2arc_001_pos.ksh
+++ b/tests/zfs-tests/tests/functional/l2arc/persist_l2arc_001_pos.ksh
@@ -49,6 +49,8 @@
 
 verify_runnable "global"
 
+command -v fio > /dev/null || log_unsupported "fio missing"
+
 log_assert "Persistent L2ARC with an unencrypted ZFS file system succeeds."
 
 function cleanup
diff --git a/tests/zfs-tests/tests/functional/l2arc/persist_l2arc_002_pos.ksh b/tests/zfs-tests/tests/functional/l2arc/persist_l2arc_002_pos.ksh
index 93982e6c60..bc6d71b7c4 100755
--- a/tests/zfs-tests/tests/functional/l2arc/persist_l2arc_002_pos.ksh
+++ b/tests/zfs-tests/tests/functional/l2arc/persist_l2arc_002_pos.ksh
@@ -52,6 +52,8 @@
 
 verify_runnable "global"
 
+command -v fio > /dev/null || log_unsupported "fio missing"
+
 log_assert "Persistent L2ARC with an encrypted ZFS file system succeeds."
 
 function cleanup
diff --git a/tests/zfs-tests/tests/functional/l2arc/persist_l2arc_003_neg.ksh b/tests/zfs-tests/tests/functional/l2arc/persist_l2arc_003_neg.ksh
index fe35c8fc45..f8dc2b108f 100755
--- a/tests/zfs-tests/tests/functional/l2arc/persist_l2arc_003_neg.ksh
+++ b/tests/zfs-tests/tests/functional/l2arc/persist_l2arc_003_neg.ksh
@@ -38,6 +38,8 @@
 
 verify_runnable "global"
 
+command -v fio > /dev/null || log_unsupported "fio missing"
+
 log_assert "Persistent L2ARC fails as expected when L2ARC_REBUILD_ENABLED = 0."
 
 function cleanup
diff --git a/tests/zfs-tests/tests/functional/l2arc/persist_l2arc_004_pos.ksh b/tests/zfs-tests/tests/functional/l2arc/persist_l2arc_004_pos.ksh
index b407031806..99cd3a2fc1 100755
--- a/tests/zfs-tests/tests/functional/l2arc/persist_l2arc_004_pos.ksh
+++ b/tests/zfs-tests/tests/functional/l2arc/persist_l2arc_004_pos.ksh
@@ -40,6 +40,8 @@
 
 verify_runnable "global"
 
+command -v fio > /dev/null || log_unsupported "fio missing"
+
 log_assert "Off/onlining an L2ARC device results in rebuilding L2ARC, vdev not present."
 
 function cleanup
diff --git a/tests/zfs-tests/tests/functional/l2arc/persist_l2arc_005_pos.ksh b/tests/zfs-tests/tests/functional/l2arc/persist_l2arc_005_pos.ksh
index 8ad648519f..ae0167eb49 100755
--- a/tests/zfs-tests/tests/functional/l2arc/persist_l2arc_005_pos.ksh
+++ b/tests/zfs-tests/tests/functional/l2arc/persist_l2arc_005_pos.ksh
@@ -39,6 +39,8 @@
 
 verify_runnable "global"
 
+command -v fio > /dev/null || log_unsupported "fio missing"
+
 log_assert "Off/onlining an L2ARC device results in rebuilding L2ARC, vdev present."
 
 function cleanup
diff --git a/tests/zfs-tests/tests/functional/no_space/enospc_rm.ksh b/tests/zfs-tests/tests/functional/no_space/enospc_rm.ksh
index 065abc7597..d0f4ff4a08 100755
--- a/tests/zfs-tests/tests/functional/no_space/enospc_rm.ksh
+++ b/tests/zfs-tests/tests/functional/no_space/enospc_rm.ksh
@@ -30,6 +30,8 @@
 
 verify_runnable "both"
 
+command -v fio > /dev/null || log_unsupported "fio missing"
+
 function cleanup
 {
 	destroy_pool $TESTPOOL
diff --git a/tests/zfs-tests/tests/functional/removal/remove_attach_mirror.ksh b/tests/zfs-tests/tests/functional/removal/remove_attach_mirror.ksh
index 9bbb07cd94..cdbd962025 100755
--- a/tests/zfs-tests/tests/functional/removal/remove_attach_mirror.ksh
+++ b/tests/zfs-tests/tests/functional/removal/remove_attach_mirror.ksh
@@ -32,6 +32,8 @@
 #	4. Reattach it to make a mirror
 #
 
+command -v fio > /dev/null || log_unsupported "fio missing"
+
 TMPDIR=${TMPDIR:-$TEST_BASE_DIR}
 
 DISK1="$TMPDIR/dsk1"
diff --git a/tests/zfs-tests/tests/functional/slog/slog_015_neg.ksh b/tests/zfs-tests/tests/functional/slog/slog_015_neg.ksh
index 04fb225ed4..464be019da 100755
--- a/tests/zfs-tests/tests/functional/slog/slog_015_neg.ksh
+++ b/tests/zfs-tests/tests/functional/slog/slog_015_neg.ksh
@@ -31,6 +31,8 @@
 
 verify_runnable "global"
 
+command -v fio > /dev/null || log_unsupported "fio missing"
+
 function cleanup
 {
 	#
diff --git a/tests/zfs-tests/tests/functional/trim/trim_l2arc.ksh b/tests/zfs-tests/tests/functional/trim/trim_l2arc.ksh
index ecf9f3424e..bd2710c6ff 100755
--- a/tests/zfs-tests/tests/functional/trim/trim_l2arc.ksh
+++ b/tests/zfs-tests/tests/functional/trim/trim_l2arc.ksh
@@ -36,6 +36,8 @@
 
 verify_runnable "global"
 
+command -v fio > /dev/null || log_unsupported "fio missing"
+
 log_assert "Trim of L2ARC succeeds."
 
 function cleanup
diff --git a/tests/zfs-tests/tests/perf/regression/random_reads.ksh b/tests/zfs-tests/tests/perf/regression/random_reads.ksh
index 70e2731661..0c73df6793 100755
--- a/tests/zfs-tests/tests/perf/regression/random_reads.ksh
+++ b/tests/zfs-tests/tests/perf/regression/random_reads.ksh
@@ -38,6 +38,8 @@
 . $STF_SUITE/include/libtest.shlib
 . $STF_SUITE/tests/perf/perf.shlib
 
+command -v fio > /dev/null || log_unsupported "fio missing"
+
 function cleanup
 {
 	# kill fio and iostat
diff --git a/tests/zfs-tests/tests/perf/regression/random_readwrite.ksh b/tests/zfs-tests/tests/perf/regression/random_readwrite.ksh
index 4dc1e3ddba..3a358774f5 100755
--- a/tests/zfs-tests/tests/perf/regression/random_readwrite.ksh
+++ b/tests/zfs-tests/tests/perf/regression/random_readwrite.ksh
@@ -38,6 +38,8 @@
 . $STF_SUITE/include/libtest.shlib
 . $STF_SUITE/tests/perf/perf.shlib
 
+command -v fio > /dev/null || log_unsupported "fio missing"
+
 function cleanup
 {
 	# kill fio and iostat
diff --git a/tests/zfs-tests/tests/perf/regression/random_readwrite_fixed.ksh b/tests/zfs-tests/tests/perf/regression/random_readwrite_fixed.ksh
index cdf15c7012..afaffb9e64 100755
--- a/tests/zfs-tests/tests/perf/regression/random_readwrite_fixed.ksh
+++ b/tests/zfs-tests/tests/perf/regression/random_readwrite_fixed.ksh
@@ -28,6 +28,8 @@
 . $STF_SUITE/include/libtest.shlib
 . $STF_SUITE/tests/perf/perf.shlib
 
+command -v fio > /dev/null || log_unsupported "fio missing"
+
 function cleanup
 {
 	# kill fio and iostat
diff --git a/tests/zfs-tests/tests/perf/regression/random_writes.ksh b/tests/zfs-tests/tests/perf/regression/random_writes.ksh
index 30db7564c2..06061a9b74 100755
--- a/tests/zfs-tests/tests/perf/regression/random_writes.ksh
+++ b/tests/zfs-tests/tests/perf/regression/random_writes.ksh
@@ -37,6 +37,8 @@
 . $STF_SUITE/include/libtest.shlib
 . $STF_SUITE/tests/perf/perf.shlib
 
+command -v fio > /dev/null || log_unsupported "fio missing"
+
 function cleanup
 {
 	# kill fio and iostat
diff --git a/tests/zfs-tests/tests/perf/regression/random_writes_zil.ksh b/tests/zfs-tests/tests/perf/regression/random_writes_zil.ksh
index ff6d465bb7..7e5a741137 100755
--- a/tests/zfs-tests/tests/perf/regression/random_writes_zil.ksh
+++ b/tests/zfs-tests/tests/perf/regression/random_writes_zil.ksh
@@ -18,6 +18,8 @@
 . $STF_SUITE/include/libtest.shlib
 . $STF_SUITE/tests/perf/perf.shlib
 
+command -v fio > /dev/null || log_unsupported "fio missing"
+
 function cleanup
 {
 	# kill fio and iostat
diff --git a/tests/zfs-tests/tests/perf/regression/sequential_reads_arc_cached.ksh b/tests/zfs-tests/tests/perf/regression/sequential_reads_arc_cached.ksh
index d885d0b7f9..ee14f2ce78 100755
--- a/tests/zfs-tests/tests/perf/regression/sequential_reads_arc_cached.ksh
+++ b/tests/zfs-tests/tests/perf/regression/sequential_reads_arc_cached.ksh
@@ -28,6 +28,8 @@
 . $STF_SUITE/include/libtest.shlib
 . $STF_SUITE/tests/perf/perf.shlib
 
+command -v fio > /dev/null || log_unsupported "fio missing"
+
 function cleanup
 {
 	# kill fio and iostat
diff --git a/tests/zfs-tests/tests/perf/regression/sequential_reads_arc_cached_clone.ksh b/tests/zfs-tests/tests/perf/regression/sequential_reads_arc_cached_clone.ksh
index 80081a098e..2cc81d5cd3 100755
--- a/tests/zfs-tests/tests/perf/regression/sequential_reads_arc_cached_clone.ksh
+++ b/tests/zfs-tests/tests/perf/regression/sequential_reads_arc_cached_clone.ksh
@@ -34,6 +34,8 @@
 . $STF_SUITE/include/libtest.shlib
 . $STF_SUITE/tests/perf/perf.shlib
 
+command -v fio > /dev/null || log_unsupported "fio missing"
+
 function cleanup
 {
 	# kill fio and iostat
diff --git a/tests/zfs-tests/tests/perf/regression/sequential_reads_dbuf_cached.ksh b/tests/zfs-tests/tests/perf/regression/sequential_reads_dbuf_cached.ksh
index 0402b48a3e..9a244324a7 100755
--- a/tests/zfs-tests/tests/perf/regression/sequential_reads_dbuf_cached.ksh
+++ b/tests/zfs-tests/tests/perf/regression/sequential_reads_dbuf_cached.ksh
@@ -32,6 +32,8 @@
 . $STF_SUITE/include/libtest.shlib
 . $STF_SUITE/tests/perf/perf.shlib
 
+command -v fio > /dev/null || log_unsupported "fio missing"
+
 function cleanup
 {
 	# kill fio and iostat
diff --git a/tests/zfs-tests/tests/perf/regression/sequential_writes.ksh b/tests/zfs-tests/tests/perf/regression/sequential_writes.ksh
index 7850bc0375..a51655cc37 100755
--- a/tests/zfs-tests/tests/perf/regression/sequential_writes.ksh
+++ b/tests/zfs-tests/tests/perf/regression/sequential_writes.ksh
@@ -37,6 +37,8 @@
 . $STF_SUITE/include/libtest.shlib
 . $STF_SUITE/tests/perf/perf.shlib
 
+command -v fio > /dev/null || log_unsupported "fio missing"
+
 function cleanup
 {
 	# kill fio and iostat