Index: user/pho/stress2/misc/graid0.sh
===================================================================
--- user/pho/stress2/misc/graid0.sh	(revision 282936)
+++ user/pho/stress2/misc/graid0.sh	(revision 282937)
@@ -1,66 +1,70 @@
 #!/bin/sh
 
 #
 # Copyright (c) 2014 EMC Corp.
 # All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions
 # are met:
 # 1. Redistributions of source code must retain the above copyright
 #    notice, this list of conditions and the following disclaimer.
 # 2. Redistributions in binary form must reproduce the above copyright
 #    notice, this list of conditions and the following disclaimer in the
 #    documentation and/or other materials provided with the distribution.
 #
 # THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 # ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 # ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 # FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 # DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 # OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 # HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 # OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 # SUCH DAMAGE.
 #
 # $FreeBSD$
 #
 
 # No problems seen.
 
 [ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1
 
 . ../default.cfg
 
 md1=$mdstart
 md2=$((mdstart + 1))
 md3=$((mdstart + 2))
 
+size=1g
+[ $((`sysctl -n hw.usermem` / 1024 / 1024 / 1024)) -le 4 ] &&
+    size=512m
+
 for u in $md1 $md2 $md3; do
 	mdconfig -l | grep -q md$u && mdconfig -d -u $u
-	mdconfig -a -t swap -s 1g -u $u
+	mdconfig -a -t swap -s $size -u $u
 done
 
 gstripe load > /dev/null 2>&1
 gstripe label -v -s 131072 data /dev/md$md1 /dev/md$md2 /dev/md$md3  > \
     /dev/null || exit 1
 [ -c /dev/stripe/data ] || exit 1
 newfs $newfs_flags /dev/stripe/data > /dev/null
 mount /dev/stripe/data $mntpoint
 chmod 777 $mntpoint
 
 export runRUNTIME=10m
 export RUNDIR=$mntpoint/stressX
 
 su $testuser -c 'cd ..; ./run.sh marcus.cfg'
 while mount | grep $mntpoint | grep -q /stripe/; do
 	umount $mntpoint || sleep 1
 done
 gstripe stop data
 gstripe unload
 
 for u in $md3 $md2 $md1; do
 	mdconfig -d -u $u
 done
Index: user/pho/stress2/misc/graid1.sh
===================================================================
--- user/pho/stress2/misc/graid1.sh	(revision 282936)
+++ user/pho/stress2/misc/graid1.sh	(revision 282937)
@@ -1,66 +1,70 @@
 #!/bin/sh
 
 #
 # Copyright (c) 2014 EMC Corp.
 # All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions
 # are met:
 # 1. Redistributions of source code must retain the above copyright
 #    notice, this list of conditions and the following disclaimer.
 # 2. Redistributions in binary form must reproduce the above copyright
 #    notice, this list of conditions and the following disclaimer in the
 #    documentation and/or other materials provided with the distribution.
 #
 # THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 # ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 # ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 # FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 # DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 # OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 # HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 # OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 # SUCH DAMAGE.
 #
 # $FreeBSD$
 #
 
 # No problems seen.
 
 [ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1
 
 . ../default.cfg
 
 md1=$mdstart
 md2=$((mdstart + 1))
 md3=$((mdstart + 2))
 
+size=1g
+[ $((`sysctl -n hw.usermem` / 1024 / 1024 / 1024)) -le 4 ] &&
+    size=512m
+
 for u in $md1 $md2 $md3; do
 	mdconfig -l | grep -q md$u && mdconfig -d -u $u
-	mdconfig -a -t swap -s 1g -u $u
+	mdconfig -a -t swap -s $size -u $u
 done
 
 gmirror load > /dev/null 2>&1
 gmirror label -v -b split -s 2048 data /dev/md$md1 /dev/md$md2 \
     /dev/md$md3 > /dev/null || exit 1
 [ -c /dev/mirror/data ] || exit 1
 newfs $newfs_flags /dev/mirror/data > /dev/null
 mount /dev/mirror/data $mntpoint
 chmod 777 $mntpoint
 
 export runRUNTIME=10m
 export RUNDIR=$mntpoint/stressX
 
 su $testuser -c 'cd ..; ./run.sh marcus.cfg'
 while mount | grep $mntpoint | grep -q /mirror/; do
 	umount $mntpoint || sleep 1
 done
 gmirror stop data
 gmirror unload
 
 for u in $md3 $md2 $md1; do
 	mdconfig -d -u $u
 done
Index: user/pho/stress2/misc/graid3.sh
===================================================================
--- user/pho/stress2/misc/graid3.sh	(revision 282936)
+++ user/pho/stress2/misc/graid3.sh	(revision 282937)
@@ -1,68 +1,72 @@
 #!/bin/sh
 
 #
 # Copyright (c) 2012 Peter Holm <pho@FreeBSD.org>
 # All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions
 # are met:
 # 1. Redistributions of source code must retain the above copyright
 #    notice, this list of conditions and the following disclaimer.
 # 2. Redistributions in binary form must reproduce the above copyright
 #    notice, this list of conditions and the following disclaimer in the
 #    documentation and/or other materials provided with the distribution.
 #
 # THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 # ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 # ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 # FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 # DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 # OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 # HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 # OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 # SUCH DAMAGE.
 #
 # $FreeBSD$
 #
 
 # Probably unrelated mkfifo() problem seen:
 # http://people.freebsd.org/~pho/stress/log/graid3.txt
 
 [ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1
 
 . ../default.cfg
 
 md1=$mdstart
 md2=$((mdstart + 1))
 md3=$((mdstart + 2))
 
+size=1g
+[ $((`sysctl -n hw.usermem` / 1024 / 1024 / 1024)) -le 4 ] &&
+    size=512m
+
 for u in $md1 $md2 $md3; do
 	mdconfig -l | grep -q md$u && mdconfig -d -u $u
-	mdconfig -a -t swap -s 1g -u $u
+	mdconfig -a -t swap -s $size -u $u
 done
 
 graid3 load > /dev/null 2>&1
 graid3 label -v -r data md$md1 md$md2 md$md3 > /dev/null || exit 1
 [ -c /dev/raid3/data ] || exit 1
 newfs $newfs_flags /dev/raid3/data  > /dev/null
 mount /dev/raid3/data $mntpoint
 chmod 777 $mntpoint
 
 export runRUNTIME=20m
 export RUNDIR=$mntpoint/stressX
 
 su $testuser -c 'cd ..; ./run.sh marcus.cfg'
 
 while mount | grep $mntpoint | grep -q raid3; do
 	umount $mntpoint || sleep 1
 done
 
 graid3 stop data
 graid3 unload
 
 for u in $md3 $md2 $md1; do
 	mdconfig -d -u $u
 done