diff --git a/tests/zfs-tests/include/libtest.shlib b/tests/zfs-tests/include/libtest.shlib
index 5ba94bc6f5e4..0b6c675cdd2c 100644
--- a/tests/zfs-tests/include/libtest.shlib
+++ b/tests/zfs-tests/include/libtest.shlib
@@ -3664,23 +3664,6 @@ function ls_xattr # path
 	esac
 }
 
-function get_arcstat # stat
-{
-	typeset stat=$1
-
-	case "$UNAME" in
-	FreeBSD)
-		kstat arcstats.$stat
-		;;
-	Linux)
-		kstat arcstats | awk "/$stat/"' { print $3 }'
-		;;
-	*)
-		false
-		;;
-	esac
-}
-
 function punch_hole # offset length file
 {
 	typeset offset=$1
@@ -3732,9 +3715,9 @@ function arcstat_quiescence # stat echo
 	fi
 
 	while $do_once || [ $stat1 -ne $stat2 ] || [ $stat2 -eq 0 ]; do
-		typeset stat1=$(get_arcstat $stat)
+		typeset stat1=$(kstat arcstats.$stat)
 		sleep 0.5
-		typeset stat2=$(get_arcstat $stat)
+		typeset stat2=$(kstat arcstats.$stat)
 		do_once=false
 	done
 
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 20498440bea7..b8deafc5b30c 100755
--- a/tests/zfs-tests/tests/functional/cache/cache_012_pos.ksh
+++ b/tests/zfs-tests/tests/functional/cache/cache_012_pos.ksh
@@ -96,9 +96,9 @@ export RUNTIME=1
 
 typeset do_once=true
 while $do_once || [[ $l2_size1 -le $l2_size2 ]]; do
-	typeset l2_size1=$(get_arcstat l2_size)
+	typeset l2_size1=$(kstat arcstats.l2_size)
 	log_must fio $FIO_SCRIPTS/random_reads.fio
-	typeset l2_size2=$(get_arcstat l2_size)
+	typeset l2_size2=$(kstat arcstats.l2_size)
 	do_once=false
 done
 
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 1d3cbfc79ee6..1eded81101c1 100755
--- a/tests/zfs-tests/tests/functional/compression/l2arc_compressed_arc.ksh
+++ b/tests/zfs-tests/tests/functional/compression/l2arc_compressed_arc.ksh
@@ -83,12 +83,12 @@ log_must truncate -s ${cache_sz}M $VDEV_CACHE
 
 log_must zpool create -O compression=lz4 -f $TESTPOOL-l2arc $VDEV cache $VDEV_CACHE
 
-l2_cksum_bad_start=$(get_arcstat l2_cksum_bad)
+l2_cksum_bad_start=$(kstat arcstats.l2_cksum_bad)
 
 log_must fio $FIO_SCRIPTS/mkfiles.fio
 log_must fio $FIO_SCRIPTS/random_reads.fio
 
-l2_cksum_bad_end=$(get_arcstat l2_cksum_bad)
+l2_cksum_bad_end=$(kstat arcstats.l2_cksum_bad)
 
 log_note "L2ARC Failed Checksums before: $l2_cksum_bad_start After:"\
 	"$l2_cksum_bad_end"
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 c8f4111744eb..b08f8dccc845 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
@@ -83,12 +83,12 @@ log_must truncate -s ${cache_sz}M $VDEV_CACHE
 
 log_must zpool create -O compression=lz4 -f $TESTPOOL-l2arc $VDEV cache $VDEV_CACHE
 
-l2_cksum_bad_start=$(get_arcstat l2_cksum_bad)
+l2_cksum_bad_start=$(kstat arcstats.l2_cksum_bad)
 
 log_must fio $FIO_SCRIPTS/mkfiles.fio
 log_must fio $FIO_SCRIPTS/random_reads.fio
 
-l2_cksum_bad_end=$(get_arcstat l2_cksum_bad)
+l2_cksum_bad_end=$(kstat arcstats.l2_cksum_bad)
 
 log_note "L2ARC Failed Checksums before: $l2_cksum_bad_start After:"\
 	"$l2_cksum_bad_end"
diff --git a/tests/zfs-tests/tests/functional/compression/l2arc_encrypted.ksh b/tests/zfs-tests/tests/functional/compression/l2arc_encrypted.ksh
index 460c95bb6051..8da3441330a6 100755
--- a/tests/zfs-tests/tests/functional/compression/l2arc_encrypted.ksh
+++ b/tests/zfs-tests/tests/functional/compression/l2arc_encrypted.ksh
@@ -88,12 +88,12 @@ log_must eval "echo $PASSPHRASE | zfs create -o compression=zstd " \
 	"-o encryption=on -o keyformat=passphrase -o keylocation=prompt " \
 	"$TESTPOOL-l2arc/encrypted"
 
-l2_cksum_bad_start=$(get_arcstat l2_cksum_bad)
+l2_cksum_bad_start=$(kstat arcstats.l2_cksum_bad)
 
 log_must fio $FIO_SCRIPTS/mkfiles.fio
 log_must fio $FIO_SCRIPTS/random_reads.fio
 
-l2_cksum_bad_end=$(get_arcstat l2_cksum_bad)
+l2_cksum_bad_end=$(kstat arcstats.l2_cksum_bad)
 
 log_note "L2ARC Failed Checksums before: $l2_cksum_bad_start After:"\
 	"$l2_cksum_bad_end"
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 2f352e2af5d4..e571016f6e2a 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
@@ -88,12 +88,12 @@ log_must eval "echo $PASSPHRASE | zfs create -o compression=zstd " \
 	"-o encryption=on -o keyformat=passphrase -o keylocation=prompt " \
 	"$TESTPOOL-l2arc/encrypted"
 
-l2_cksum_bad_start=$(get_arcstat l2_cksum_bad)
+l2_cksum_bad_start=$(kstat arcstats.l2_cksum_bad)
 
 log_must fio $FIO_SCRIPTS/mkfiles.fio
 log_must fio $FIO_SCRIPTS/random_reads.fio
 
-l2_cksum_bad_end=$(get_arcstat l2_cksum_bad)
+l2_cksum_bad_end=$(kstat arcstats.l2_cksum_bad)
 
 log_note "L2ARC Failed Checksums before: $l2_cksum_bad_start After:"\
 	"$l2_cksum_bad_end"
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 69d60ab8bb90..dc6bb9f9a163 100755
--- a/tests/zfs-tests/tests/functional/l2arc/l2arc_arcstats_pos.ksh
+++ b/tests/zfs-tests/tests/functional/l2arc/l2arc_arcstats_pos.ksh
@@ -73,18 +73,18 @@ arcstat_quiescence_noecho l2_size
 log_must zpool offline $TESTPOOL $VDEV_CACHE
 arcstat_quiescence_noecho l2_size
 
-typeset l2_mfu_init=$(get_arcstat l2_mfu_asize)
-typeset l2_mru_init=$(get_arcstat l2_mru_asize)
-typeset l2_prefetch_init=$(get_arcstat l2_prefetch_asize)
-typeset l2_asize_init=$(get_arcstat l2_asize)
+typeset l2_mfu_init=$(kstat arcstats.l2_mfu_asize)
+typeset l2_mru_init=$(kstat arcstats.l2_mru_asize)
+typeset l2_prefetch_init=$(kstat arcstats.l2_prefetch_asize)
+typeset l2_asize_init=$(kstat arcstats.l2_asize)
 
 log_must zpool online $TESTPOOL $VDEV_CACHE
 arcstat_quiescence_noecho l2_size
 log_must zpool export $TESTPOOL
 arcstat_quiescence_noecho l2_feeds
 
-log_must test $(get_arcstat l2_mfu_asize) -eq 0
-log_must test $(get_arcstat l2_mru_asize) -eq 0
+log_must test $(kstat arcstats.l2_mfu_asize) -eq 0
+log_must test $(kstat arcstats.l2_mru_asize) -eq 0
 log_must zpool import -d $VDIR $TESTPOOL
 arcstat_quiescence_noecho l2_size
 
@@ -93,10 +93,10 @@ arcstat_quiescence_noecho l2_size
 log_must zpool offline $TESTPOOL $VDEV_CACHE
 arcstat_quiescence_noecho l2_size
 
-typeset l2_mfu_end=$(get_arcstat l2_mfu_asize)
-typeset l2_mru_end=$(get_arcstat l2_mru_asize)
-typeset l2_prefetch_end=$(get_arcstat l2_prefetch_asize)
-typeset l2_asize_end=$(get_arcstat l2_asize)
+typeset l2_mfu_end=$(kstat arcstats.l2_mfu_asize)
+typeset l2_mru_end=$(kstat arcstats.l2_mru_asize)
+typeset l2_prefetch_end=$(kstat arcstats.l2_prefetch_asize)
+typeset l2_asize_end=$(kstat arcstats.l2_asize)
 
 log_must test $(( $l2_mru_end + $l2_mfu_end + $l2_prefetch_end - \
 	$l2_asize_end )) -eq 0
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 c9d5d7ffe1f1..8a9e4fa41b7c 100755
--- a/tests/zfs-tests/tests/functional/l2arc/l2arc_l2miss_pos.ksh
+++ b/tests/zfs-tests/tests/functional/l2arc/l2arc_l2miss_pos.ksh
@@ -71,10 +71,10 @@ log_must fio $FIO_SCRIPTS/random_reads.fio
 log_must zpool export $TESTPOOL1
 log_must zpool import $TESTPOOL1 -d $VDEV1
 
-typeset starting_miss_count=$(get_arcstat l2_misses)
+typeset starting_miss_count=$(kstat arcstats.l2_misses)
 
 log_must fio $FIO_SCRIPTS/random_reads.fio
-log_must test $(get_arcstat l2_misses) -eq $starting_miss_count
+log_must test $(kstat arcstats.l2_misses) -eq $starting_miss_count
 
 # I/O to pool with l2arc - expect that l2_misses rises
 export DIRECTORY=/$TESTPOOL
@@ -88,7 +88,7 @@ log_must zpool export $TESTPOOL
 log_must zpool import $TESTPOOL -d $VDEV
 
 log_must fio $FIO_SCRIPTS/random_reads.fio
-log_must test $(get_arcstat l2_misses) -gt $starting_miss_count
+log_must test $(kstat arcstats.l2_misses) -gt $starting_miss_count
 
 log_must zpool destroy -f $TESTPOOL
 log_must zpool destroy -f $TESTPOOL1
diff --git a/tests/zfs-tests/tests/functional/l2arc/l2arc_mfuonly_pos.ksh b/tests/zfs-tests/tests/functional/l2arc/l2arc_mfuonly_pos.ksh
index 89ab940334ee..2c5fc6753152 100755
--- a/tests/zfs-tests/tests/functional/l2arc/l2arc_mfuonly_pos.ksh
+++ b/tests/zfs-tests/tests/functional/l2arc/l2arc_mfuonly_pos.ksh
@@ -72,7 +72,7 @@ export FILE_SIZE=$(( floor($fill_mb / $NUMJOBS) ))M
 
 log_must truncate -s ${cache_sz}M $VDEV_CACHE
 
-typeset log_blk_start=$(get_arcstat l2_log_blk_writes)
+typeset log_blk_start=$(kstat arcstats.l2_log_blk_writes)
 
 log_must zpool create -f $TESTPOOL $VDEV cache $VDEV_CACHE
 
@@ -89,7 +89,7 @@ log_must zpool import -N -d $VDIR $TESTPOOL
 # will not be 0 (mentioned also in zfs.4)
 # For the purposes of this test we mitigate this by disabling (predictive)
 # ZFS prefetches with zfs_prefetch_disable=1.
-log_must test $(get_arcstat l2_mru_asize) -eq 0
+log_must test $(kstat arcstats.l2_mru_asize) -eq 0
 
 log_must zpool destroy -f $TESTPOOL
 
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 a9968723c3ca..a999f96971fd 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
@@ -88,7 +88,7 @@ arcstat_quiescence_noecho l2_feeds
 
 typeset l2_dh_log_blk=$(zdb -l $VDEV_CACHE | awk '/log_blk_count/ {print $2}')
 
-typeset l2_rebuild_log_blk_start=$(get_arcstat l2_rebuild_log_blks)
+typeset l2_rebuild_log_blk_start=$(kstat arcstats.l2_rebuild_log_blks)
 
 log_must zpool import -d $VDIR $TESTPOOL
 arcstat_quiescence_noecho l2_size
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 3b893d28da6a..4c6bc2e2e720 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
@@ -94,7 +94,7 @@ arcstat_quiescence_noecho l2_feeds
 
 typeset l2_dh_log_blk=$(zdb -l $VDEV_CACHE | awk '/log_blk_count/ {print $2}')
 
-typeset l2_rebuild_log_blk_start=$(get_arcstat l2_rebuild_log_blks)
+typeset l2_rebuild_log_blk_start=$(kstat arcstats.l2_rebuild_log_blks)
 
 log_must zpool import -d $VDIR $TESTPOOL
 log_must eval "echo $PASSPHRASE | zfs mount -l $TESTPOOL/$TESTFS1"
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 14063658e3c5..104d1d484ff2 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
@@ -73,12 +73,12 @@ log_must fio $FIO_SCRIPTS/random_reads.fio
 
 log_must zpool export $TESTPOOL
 
-typeset l2_success_start=$(get_arcstat l2_rebuild_success)
+typeset l2_success_start=$(kstat arcstats.l2_rebuild_success)
 
 log_must zpool import -d $VDIR $TESTPOOL
 log_mustnot test "$(zpool iostat -Hpv $TESTPOOL $VDEV_CACHE | awk '{print $2}')" -gt 80000000
 
-typeset l2_success_end=$(get_arcstat l2_rebuild_success)
+typeset l2_success_end=$(kstat arcstats.l2_rebuild_success)
 
 log_mustnot test $l2_success_end -gt $l2_success_start
 
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 8a572c26469c..6460b9a0e7a1 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
@@ -79,7 +79,7 @@ arcstat_quiescence_noecho l2_size
 log_must zpool export $TESTPOOL
 arcstat_quiescence_noecho l2_feeds
 
-typeset l2_rebuild_log_blk_start=$(get_arcstat l2_rebuild_log_blks)
+typeset l2_rebuild_log_blk_start=$(kstat arcstats.l2_rebuild_log_blks)
 typeset l2_dh_log_blk=$(zdb -l $VDEV_CACHE | awk '/log_blk_count/ {print $2}')
 
 log_must zpool import -d $VDIR $TESTPOOL
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 9663437c6597..ce379a566f18 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
@@ -76,7 +76,7 @@ arcstat_quiescence_noecho l2_size
 log_must zpool offline $TESTPOOL $VDEV_CACHE
 arcstat_quiescence_noecho l2_size
 
-typeset l2_rebuild_log_blk_start=$(get_arcstat l2_rebuild_log_blks)
+typeset l2_rebuild_log_blk_start=$(kstat arcstats.l2_rebuild_log_blks)
 typeset l2_dh_log_blk=$(zdb -l $VDEV_CACHE | awk '/log_blk_count/ {print $2}')
 
 log_must zpool online $TESTPOOL $VDEV_CACHE
diff --git a/tests/zfs-tests/tests/functional/trim/trim_l2arc.ksh b/tests/zfs-tests/tests/functional/trim/trim_l2arc.ksh
index 62563e0dd4cb..fc7824ec6ce5 100755
--- a/tests/zfs-tests/tests/functional/trim/trim_l2arc.ksh
+++ b/tests/zfs-tests/tests/functional/trim/trim_l2arc.ksh
@@ -89,9 +89,9 @@ log_must fio $FIO_SCRIPTS/random_reads.fio
 export RUNTIME=1
 typeset do_once=true
 while $do_once || [[ $l2_size1 -le $l2_size2 ]]; do
-	typeset l2_size1=$(get_arcstat l2_size)
+	typeset l2_size1=$(kstat arcstats.l2_size)
 	log_must fio $FIO_SCRIPTS/random_reads.fio
-	typeset l2_size2=$(get_arcstat l2_size)
+	typeset l2_size2=$(kstat arcstats.l2_size)
 	do_once=false
 done