diff --git a/release/arm/BEAGLEBONE.conf b/release/arm/BEAGLEBONE.conf
index e164f582b8f8..6d9927c0542b 100644
--- a/release/arm/BEAGLEBONE.conf
+++ b/release/arm/BEAGLEBONE.conf
@@ -23,6 +23,8 @@ NODOC=yes
 # Since this file is sourced by a script that runs another
 # script, these must be exported.
 set -a
+WORLD_FLAGS="-j $(sysctl -n hw.ncpu)"
+KERNEL_FLAGS="-j $(expr \( $(sysctl -n hw.ncpu) + 1 \) / 2)"
 CHROOTDIR="/scratch"
 EMBEDDEDBUILD=1
 EMBEDDEDPORTS="lang/python textproc/gsed"
diff --git a/release/arm/PANDABOARD.conf b/release/arm/PANDABOARD.conf
index 1ddd68a99a70..1e2b7a3fd181 100644
--- a/release/arm/PANDABOARD.conf
+++ b/release/arm/PANDABOARD.conf
@@ -23,6 +23,8 @@ NODOC=yes
 # Since this file is sourced by a script that runs another
 # script, these must be exported.
 set -a
+WORLD_FLAGS="-j $(sysctl -n hw.ncpu)"
+KERNEL_FLAGS="-j $(expr \( $(sysctl -n hw.ncpu) + 1 \) / 2)"
 CHROOTDIR="/scratch"
 EMBEDDEDBUILD=1
 EMBEDDEDPORTS="lang/python textproc/gsed"
diff --git a/release/arm/RPI-B.conf b/release/arm/RPI-B.conf
index c3e5248db00c..417af4ed8df4 100644
--- a/release/arm/RPI-B.conf
+++ b/release/arm/RPI-B.conf
@@ -23,6 +23,8 @@ NODOC=yes
 # Since this file is sourced by a script that runs another
 # script, these must be exported.
 set -a
+WORLD_FLAGS="-j $(sysctl -n hw.ncpu)"
+KERNEL_FLAGS="-j $(expr \( $(sysctl -n hw.ncpu) + 1 \) / 2)"
 CHROOTDIR="/scratch"
 EMBEDDEDBUILD=1
 EMBEDDEDPORTS="lang/python textproc/gsed"
diff --git a/release/tools/arm/crochet-BEAGLEBONE.conf b/release/tools/arm/crochet-BEAGLEBONE.conf
index 0a37f35ef3bd..b261fc9c4dfc 100644
--- a/release/tools/arm/crochet-BEAGLEBONE.conf
+++ b/release/tools/arm/crochet-BEAGLEBONE.conf
@@ -19,9 +19,9 @@ _REVISION=$(make -C ${FREEBSD_SRC}/release -V REVISION)
 KERNCONF=BEAGLEBONE
 TARGET=arm
 TARGET_ARCH=armv6
-FREEBSD_BUILDWORLD_EXTRA_ARGS=""
+FREEBSD_BUILDWORLD_EXTRA_ARGS="${WORLD_FLAGS}"
+FREEBSD_BUILDKERNEL_EXTRA_ARGS="${KERNEL_FLAGS}"
 FREEBSD_INSTALLWORLD_EXTRA_ARGS=""
-FREEBSD_BUILDKERNEL_EXTRA_ARGS=""
 FREEBSD_INSTALLKERNEL_EXTRA_ARGS=""
 FREEBSD_WORLD_EXTRA_ARGS=""
 FREEBSD_KERNEL_EXTRA_ARGS=""
diff --git a/release/tools/arm/crochet-PANDABOARD.conf b/release/tools/arm/crochet-PANDABOARD.conf
index bf333a44507a..f1924ba522fa 100644
--- a/release/tools/arm/crochet-PANDABOARD.conf
+++ b/release/tools/arm/crochet-PANDABOARD.conf
@@ -19,9 +19,9 @@ _REVISION=$(make -C ${FREEBSD_SRC}/release -V REVISION)
 KERNCONF=PANDABOARD
 TARGET=arm
 TARGET_ARCH=armv6
-FREEBSD_BUILDWORLD_EXTRA_ARGS=""
+FREEBSD_BUILDWORLD_EXTRA_ARGS="${WORLD_FLAGS}"
+FREEBSD_BUILDKERNEL_EXTRA_ARGS="${KERNEL_FLAGS}"
 FREEBSD_INSTALLWORLD_EXTRA_ARGS=""
-FREEBSD_BUILDKERNEL_EXTRA_ARGS=""
 FREEBSD_INSTALLKERNEL_EXTRA_ARGS=""
 FREEBSD_WORLD_EXTRA_ARGS=""
 FREEBSD_KERNEL_EXTRA_ARGS=""
diff --git a/release/tools/arm/crochet-RPI-B.conf b/release/tools/arm/crochet-RPI-B.conf
index 48887793e414..76c50ea99358 100644
--- a/release/tools/arm/crochet-RPI-B.conf
+++ b/release/tools/arm/crochet-RPI-B.conf
@@ -19,9 +19,9 @@ _REVISION=$(make -C ${FREEBSD_SRC}/release -V REVISION)
 KERNCONF=RPI-B
 TARGET=arm
 TARGET_ARCH=armv6
-FREEBSD_BUILDWORLD_EXTRA_ARGS=""
+FREEBSD_BUILDWORLD_EXTRA_ARGS="${WORLD_FLAGS}"
+FREEBSD_BUILDKERNEL_EXTRA_ARGS="${KERNEL_FLAGS}"
 FREEBSD_INSTALLWORLD_EXTRA_ARGS=""
-FREEBSD_BUILDKERNEL_EXTRA_ARGS=""
 FREEBSD_INSTALLKERNEL_EXTRA_ARGS=""
 FREEBSD_WORLD_EXTRA_ARGS=""
 FREEBSD_KERNEL_EXTRA_ARGS=""