* Re: [LTP] [PATCH v3 1/8] A library used to test memcg
[not found] <4F17D4D0.9090200@cn.fujitsu.com>
@ 2012-01-19 8:45 ` Peng Haitao
2012-01-20 12:06 ` Jan Stancek
1 sibling, 0 replies; 4+ messages in thread
From: Peng Haitao @ 2012-01-19 8:45 UTC (permalink / raw)
To: ltp-list
[-- Attachment #1: Type: text/plain, Size: 11303 bytes --]
Sorry for forgetting attached the patch.
--
Best Regards,
Peng
Peng Haitao said the following on 2012-1-19 16:31:
>
> This library includes a set of functions used to test memcg.
>
> Signed-off-by: Peng Haitao <penght@cn.fujitsu.com>
> ---
> .../controllers/memcg/functional/memcg_lib.sh | 412 ++++++++++++++++++++
> 1 files changed, 412 insertions(+), 0 deletions(-)
> create mode 100644 testcases/kernel/controllers/memcg/functional/memcg_lib.sh
>
> diff --git a/testcases/kernel/controllers/memcg/functional/memcg_lib.sh b/testcases/kernel/controllers/memcg/functional/memcg_lib.sh
> new file mode 100644
> index 0000000..6af1cc2
> --- /dev/null
> +++ b/testcases/kernel/controllers/memcg/functional/memcg_lib.sh
> @@ -0,0 +1,412 @@
> +#! /bin/sh
> +
> +################################################################################
> +## ##
> +## Copyright (c) 2012 FUJITSU LIMITED ##
> +## ##
> +## This program is free software; you can redistribute it and#or modify ##
> +## it under the terms of the GNU General Public License as published by ##
> +## the Free Software Foundation; either version 2 of the License, or ##
> +## (at your option) any later version. ##
> +## ##
> +## This program is distributed in the hope that it will be useful, but ##
> +## WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY ##
> +## or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License ##
> +## for more details. ##
> +## ##
> +## You should have received a copy of the GNU General Public License ##
> +## along with this program; if not, write to the Free Software ##
> +## Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA ##
> +## ##
> +## Author: Peng Haitao <penght@cn.fujitsu.com> ##
> +## ##
> +################################################################################
> +
> +if [ "x$(grep -w memory /proc/cgroups | cut -f4)" != "x1" ]; then
> + echo "WARNING:";
> + echo "Either Kernel does not support for memory resource controller or feature not enabled";
> + echo "Skipping all memcgroup testcases....";
> + exit 0
> +fi
> +
> +cd $LTPROOT/testcases/bin
> +
> +TEST_PATH=$PWD
> +PAGESIZE=`./memcg_getpagesize`
> +HUGEPAGESIZE=`grep Hugepagesize /proc/meminfo | awk '{ print $2 }'`
> +[ -z $HUGEPAGESIZE ] && HUGEPAGESIZE=0
> +HUGEPAGESIZE=$(( $HUGEPAGESIZE * 1024 ))
> +PASS=0
> +FAIL=1
> +
> +cur_id=0
> +failed=0
> +
> +# Record the test result of a test case
> +# $1 - The result of the test case, $PASS or $FAIL
> +# $2 - The output information
> +result()
> +{
> + local pass=$1
> + local info="$2"
> +
> + if [ $pass -eq $PASS ]; then
> + tst_resm TPASS "$info"
> + else
> + tst_resm TFAIL "$info"
> + : $(( failed += 1 ))
> + fi
> +}
> +
> +# Check size in memcg
> +# $1 - Item name
> +# $2 - Expected size
> +check_mem_stat()
> +{
> + if [ -e $1 ]; then
> + item_size=`cat $1`
> + else
> + item_size=`grep -w $1 memory.stat | cut -d " " -f 2`
> + fi
> +
> + if [ "$2" = "$item_size" ]; then
> + pass=$PASS
> + else
> + pass=$FAIL
> + fi
> +
> + result $pass "$1=$item_size/$2"
> +}
> +
> +warmup()
> +{
> + pid=$1
> +
> + echo "Warming up for test: $cur_id, pid: $pid"
> + kill -s USR1 $pid 2> /dev/null
> + sleep 1
> + kill -s USR1 $pid 2> /dev/null
> + sleep 1
> +
> + kill -0 $pid
> + if [ $? -ne 0 ]; then
> + result $FAIL "cur_id=$cur_id"
> + return 1
> + else
> + echo "Process is still here after warm up: $pid"
> + fi
> +
> + return 0
> +}
> +
> +# Run test cases which checks memory.stat after make
> +# some memory allocation
> +# $1 - the parameters of 'process', such as --shm
> +# $2 - the -s parameter of 'process', such as 4096
> +# $3 - item name in memory.stat
> +# $4 - the expected size
> +# $5 - check after free ?
> +test_mem_stat()
> +{
> + echo "Running $TEST_PATH/memcg_process $1 -s $2"
> + $TEST_PATH/memcg_process $1 -s $2 &
> + sleep 1
> +
> + warmup $!
> + if [ $? -ne 0 ]; then
> + return
> + fi
> +
> + echo $! > tasks
> + kill -s USR1 $! 2> /dev/null
> + sleep 1
> +
> + check_mem_stat $3 $4
> +
> + kill -s USR1 $! 2> /dev/null
> + sleep 1
> + if [ $5 -eq 1 ]; then
> + check_mem_stat $3 0
> + fi
> +
> + kill -s INT $! 2> /dev/null
> +}
> +
> +# Run test cases which checks memory.max_usage_in_bytes after make
> +# some memory allocation
> +# $1 - the parameters of 'process', such as --shm
> +# $2 - the -s parameter of 'process', such as 4096
> +# $3 - item name
> +# $4 - the expected size
> +# $5 - check after free ?
> +test_max_usage_in_bytes()
> +{
> + echo "Running $TEST_PATH/memcg_process $1 -s $2"
> + $TEST_PATH/memcg_process $1 -s $2 &
> + sleep 1
> +
> + warmup $!
> + if [ $? -ne 0 ]; then
> + return
> + fi
> +
> + echo $! > tasks
> + kill -s USR1 $! 2> /dev/null
> + sleep 1
> +
> + kill -s USR1 $! 2> /dev/null
> + sleep 1
> +
> + check_mem_stat $3 $4
> +
> + if [ $5 -eq 1 ]; then
> + echo 0 > $3
> + check_mem_stat $3 0
> + fi
> +
> + kill -s INT $! 2> /dev/null
> +}
> +
> +# make some memory allocation
> +# $1 - the parameters of 'process', such as --shm
> +# $2 - the -s parameter of 'process', such as 4096
> +malloc_free_memory()
> +{
> + echo "Running $TEST_PATH/memcg_process $1 -s $2"
> + $TEST_PATH/memcg_process $1 -s $2 &
> + sleep 1
> +
> + echo $! > tasks
> + kill -s USR1 $! 2> /dev/null
> + sleep 1
> +
> + kill -s USR1 $! 2> /dev/null
> + sleep 1
> +
> + kill -s INT $! 2> /dev/null
> +}
> +
> +# Test if failcnt > 0, which means page reclamation occured
> +# $1 - item name in memcg
> +test_failcnt()
> +{
> + failcnt=`cat $1`
> + if [ $failcnt -gt 0 ]; then
> + pass=$PASS
> + else
> + pass=$FAIL
> + fi
> +
> + result $pass "$1=$failcnt"
> +}
> +
> +# Test process will be killed due to exceed memory limit
> +# $1 - the value of memory.limit_in_bytes
> +# $2 - the parameters of 'process', such as --shm
> +# $3 - the -s parameter of 'process', such as 4096
> +# $4 - use mem+swap limitation
> +test_proc_kill()
> +{
> + echo $1 > memory.limit_in_bytes
> + if [ $4 -eq 1 ]; then
> + if [ -e memory.memsw.limit_in_bytes ]; then
> + echo $1 > memory.memsw.limit_in_bytes
> + else
> + tst_resm TCONF "mem+swap is not enabled"
> + return
> + fi
> + fi
> +
> + $TEST_PATH/memcg_process $2 -s $3 &
> + pid=$!
> + sleep 1
> + echo $pid > tasks
> +
> + kill -s USR1 $pid 2> /dev/null
> + sleep 1
> +
> + ps -p $pid > /dev/null 2> /dev/null
> + if [ $? -ne 0 ]; then
> + wait $pid
> + if [ $? -eq 1 ]; then
> + result $FAIL "process $pid is killed by error"
> + else
> + result $PASS "process $pid is killed"
> + fi
> + else
> + kill -s INT $pid 2> /dev/null
> + result $FAIL "process $pid is not killed"
> + fi
> +}
> +
> +# Test limit_in_bytes will be aligned to PAGESIZE
> +# $1 - user input value
> +# $2 - expected value
> +# $3 - use mem+swap limitation
> +test_limit_in_bytes()
> +{
> + echo $1 > memory.limit_in_bytes
> + if [ $3 -eq 1 ]; then
> + if [ -e memory.memsw.limit_in_bytes ]; then
> + echo $1 > memory.memsw.limit_in_bytes
> + limit=`cat memory.memsw.limit_in_bytes`
> + else
> + tst_resm TCONF "mem+swap is not enabled"
> + return
> + fi
> + else
> + limit=`cat memory.limit_in_bytes`
> + fi
> +
> + if [ $limit -eq $2 ]; then
> + result $PASS "input=$1, limit_in_bytes=$limit"
> + else
> + result $FAIL "input=$1, limit_in_bytes=$limit"
> + fi
> +}
> +
> +# Test memory controller doesn't charge hugepage
> +# $1 - the value of /proc/sys/vm/nr_hugepages
> +# $2 - the parameters of 'process', --mmap-file or --shm
> +# $3 - the -s parameter of 'process', such as $HUGEPAGESIZE
> +# $4 - 0: expected failure, 1: expected success
> +test_hugepage()
> +{
> + TMP_FILE=$TEST_PATH/tmp
> + nr_hugepages=`cat /proc/sys/vm/nr_hugepages`
> +
> + mkdir /hugetlb
> + mount -t hugetlbfs none /hugetlb
> +
> + echo $1 > /proc/sys/vm/nr_hugepages
> +
> + $TEST_PATH/memcg_process $2 --hugepage -s $3 > $TMP_FILE 2>&1 &
> + sleep 1
> +
> + kill -s USR1 $! 2> /dev/null
> + sleep 1
> +
> + check_mem_stat "rss" 0
> +
> + echo "TMP_FILE:"
> + cat $TMP_FILE
> +
> + if [ $4 -eq 0 ]; then
> + test -s $TMP_FILE
> + if [ $? -eq 0 ]; then
> + result $PASS "allocate hugepage failed as expected"
> + else
> + kill -s USR1 $! 2> /dev/null
> + kill -s INT $! 2> /dev/null
> + result $FAIL "allocate hugepage shoud fail"
> + fi
> + else
> + test ! -s $TMP_FILE
> + if [ $? -eq 0 ]; then
> + kill -s USR1 $! 2> /dev/null
> + kill -s INT $! 2> /dev/null
> + result $PASS "allocate hugepage succeeded"
> + else
> + result $FAIL "allocate hugepage failed"
> + fi
> + fi
> +
> + sleep 1
> + rm -rf $TMP_FILE
> + umount /hugetlb
> + rmdir /hugetlb
> + echo $nr_hugepages > /proc/sys/vm/nr_hugepages
> +}
> +
> +# Test the memory charge won't move to subgroup
> +# $1 - memory.limit_in_bytes in parent group
> +# $2 - memory.limit_in_bytes in sub group
> +test_subgroup()
> +{
> + mkdir subgroup
> + echo $1 > memory.limit_in_bytes
> + echo $2 > subgroup/memory.limit_in_bytes
> +
> + echo "Running $TEST_PATH/memcg_process --mmap-anon -s $PAGESIZE"
> + $TEST_PATH/memcg_process --mmap-anon -s $PAGESIZE &
> + sleep 1
> +
> + warmup $!
> + if [ $? -ne 0 ]; then
> + return
> + fi
> +
> + echo $! > tasks
> + kill -s USR1 $! 2> /dev/null
> + sleep 1
> + check_mem_stat "rss" $PAGESIZE
> +
> + cd subgroup
> + echo $! > tasks
> + check_mem_stat "rss" 0
> +
> + # cleanup
> + cd ..
> + echo $! > tasks
> + kill -s INT $! 2> /dev/null
> + sleep 1
> + rmdir subgroup
> +}
> +
> +# Run test cases which test memory.move_charge_at_immigrate
> +# $1 - the parameters of 'process', such as --shm
> +# $2 - the -s parameter of 'process', such as 4096
> +# $3 - some positive value, such as 1
> +# $4 - the expected size
> +# $5 - the expected size
> +test_move_charge()
> +{
> + mkdir subgroup_a
> +
> + $TEST_PATH/memcg_process $1 -s $2 &
> + sleep 1
> + warmup $!
> + if [ $? -ne 0 ]; then
> + rmdir subgroup_a
> + return
> + fi
> +
> + echo $! > subgroup_a/tasks
> + kill -s USR1 $!
> + sleep 1
> +
> + mkdir subgroup_b
> + echo $3 > subgroup_b/memory.move_charge_at_immigrate
> + echo $! > subgroup_b/tasks
> +
> + cd subgroup_b
> + check_mem_stat memory.usage_in_bytes $4
> + cd ../subgroup_a
> + check_mem_stat memory.usage_in_bytes $5
> +
> + cd ..
> + echo $! > tasks
> + kill -s USR1 $!
> + kill -s INT $!
> + sleep 1
> + rmdir subgroup_a subgroup_b
> +}
> +
> +cleanup()
> +{
> + killall -9 memcg_process 2>/dev/null
> + if [ -e /dev/memcg ]; then
> + umount /dev/memcg 2>/dev/null
> + rmdir /dev/memcg 2>/dev/null
> + fi
> +}
> +
> +
> +do_mount()
> +{
> + cleanup
> +
> + mkdir /dev/memcg 2> /dev/null
> + mount -t cgroup -omemory memcg /dev/memcg
> +}
> +
[-- Attachment #2: 0001-A-library-used-to-test-memcg.patch --]
[-- Type: text/plain, Size: 10768 bytes --]
This library includes a set of functions used to test memcg.
Signed-off-by: Peng Haitao <penght@cn.fujitsu.com>
---
.../controllers/memcg/functional/memcg_lib.sh | 412 ++++++++++++++++++++
1 files changed, 412 insertions(+), 0 deletions(-)
create mode 100644 testcases/kernel/controllers/memcg/functional/memcg_lib.sh
diff --git a/testcases/kernel/controllers/memcg/functional/memcg_lib.sh b/testcases/kernel/controllers/memcg/functional/memcg_lib.sh
new file mode 100644
index 0000000..6af1cc2
--- /dev/null
+++ b/testcases/kernel/controllers/memcg/functional/memcg_lib.sh
@@ -0,0 +1,412 @@
+#! /bin/sh
+
+################################################################################
+## ##
+## Copyright (c) 2012 FUJITSU LIMITED ##
+## ##
+## This program is free software; you can redistribute it and#or modify ##
+## it under the terms of the GNU General Public License as published by ##
+## the Free Software Foundation; either version 2 of the License, or ##
+## (at your option) any later version. ##
+## ##
+## This program is distributed in the hope that it will be useful, but ##
+## WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY ##
+## or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License ##
+## for more details. ##
+## ##
+## You should have received a copy of the GNU General Public License ##
+## along with this program; if not, write to the Free Software ##
+## Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA ##
+## ##
+## Author: Peng Haitao <penght@cn.fujitsu.com> ##
+## ##
+################################################################################
+
+if [ "x$(grep -w memory /proc/cgroups | cut -f4)" != "x1" ]; then
+ echo "WARNING:";
+ echo "Either Kernel does not support for memory resource controller or feature not enabled";
+ echo "Skipping all memcgroup testcases....";
+ exit 0
+fi
+
+cd $LTPROOT/testcases/bin
+
+TEST_PATH=$PWD
+PAGESIZE=`./memcg_getpagesize`
+HUGEPAGESIZE=`grep Hugepagesize /proc/meminfo | awk '{ print $2 }'`
+[ -z $HUGEPAGESIZE ] && HUGEPAGESIZE=0
+HUGEPAGESIZE=$(( $HUGEPAGESIZE * 1024 ))
+PASS=0
+FAIL=1
+
+cur_id=0
+failed=0
+
+# Record the test result of a test case
+# $1 - The result of the test case, $PASS or $FAIL
+# $2 - The output information
+result()
+{
+ local pass=$1
+ local info="$2"
+
+ if [ $pass -eq $PASS ]; then
+ tst_resm TPASS "$info"
+ else
+ tst_resm TFAIL "$info"
+ : $(( failed += 1 ))
+ fi
+}
+
+# Check size in memcg
+# $1 - Item name
+# $2 - Expected size
+check_mem_stat()
+{
+ if [ -e $1 ]; then
+ item_size=`cat $1`
+ else
+ item_size=`grep -w $1 memory.stat | cut -d " " -f 2`
+ fi
+
+ if [ "$2" = "$item_size" ]; then
+ pass=$PASS
+ else
+ pass=$FAIL
+ fi
+
+ result $pass "$1=$item_size/$2"
+}
+
+warmup()
+{
+ pid=$1
+
+ echo "Warming up for test: $cur_id, pid: $pid"
+ kill -s USR1 $pid 2> /dev/null
+ sleep 1
+ kill -s USR1 $pid 2> /dev/null
+ sleep 1
+
+ kill -0 $pid
+ if [ $? -ne 0 ]; then
+ result $FAIL "cur_id=$cur_id"
+ return 1
+ else
+ echo "Process is still here after warm up: $pid"
+ fi
+
+ return 0
+}
+
+# Run test cases which checks memory.stat after make
+# some memory allocation
+# $1 - the parameters of 'process', such as --shm
+# $2 - the -s parameter of 'process', such as 4096
+# $3 - item name in memory.stat
+# $4 - the expected size
+# $5 - check after free ?
+test_mem_stat()
+{
+ echo "Running $TEST_PATH/memcg_process $1 -s $2"
+ $TEST_PATH/memcg_process $1 -s $2 &
+ sleep 1
+
+ warmup $!
+ if [ $? -ne 0 ]; then
+ return
+ fi
+
+ echo $! > tasks
+ kill -s USR1 $! 2> /dev/null
+ sleep 1
+
+ check_mem_stat $3 $4
+
+ kill -s USR1 $! 2> /dev/null
+ sleep 1
+ if [ $5 -eq 1 ]; then
+ check_mem_stat $3 0
+ fi
+
+ kill -s INT $! 2> /dev/null
+}
+
+# Run test cases which checks memory.max_usage_in_bytes after make
+# some memory allocation
+# $1 - the parameters of 'process', such as --shm
+# $2 - the -s parameter of 'process', such as 4096
+# $3 - item name
+# $4 - the expected size
+# $5 - check after free ?
+test_max_usage_in_bytes()
+{
+ echo "Running $TEST_PATH/memcg_process $1 -s $2"
+ $TEST_PATH/memcg_process $1 -s $2 &
+ sleep 1
+
+ warmup $!
+ if [ $? -ne 0 ]; then
+ return
+ fi
+
+ echo $! > tasks
+ kill -s USR1 $! 2> /dev/null
+ sleep 1
+
+ kill -s USR1 $! 2> /dev/null
+ sleep 1
+
+ check_mem_stat $3 $4
+
+ if [ $5 -eq 1 ]; then
+ echo 0 > $3
+ check_mem_stat $3 0
+ fi
+
+ kill -s INT $! 2> /dev/null
+}
+
+# make some memory allocation
+# $1 - the parameters of 'process', such as --shm
+# $2 - the -s parameter of 'process', such as 4096
+malloc_free_memory()
+{
+ echo "Running $TEST_PATH/memcg_process $1 -s $2"
+ $TEST_PATH/memcg_process $1 -s $2 &
+ sleep 1
+
+ echo $! > tasks
+ kill -s USR1 $! 2> /dev/null
+ sleep 1
+
+ kill -s USR1 $! 2> /dev/null
+ sleep 1
+
+ kill -s INT $! 2> /dev/null
+}
+
+# Test if failcnt > 0, which means page reclamation occured
+# $1 - item name in memcg
+test_failcnt()
+{
+ failcnt=`cat $1`
+ if [ $failcnt -gt 0 ]; then
+ pass=$PASS
+ else
+ pass=$FAIL
+ fi
+
+ result $pass "$1=$failcnt"
+}
+
+# Test process will be killed due to exceed memory limit
+# $1 - the value of memory.limit_in_bytes
+# $2 - the parameters of 'process', such as --shm
+# $3 - the -s parameter of 'process', such as 4096
+# $4 - use mem+swap limitation
+test_proc_kill()
+{
+ echo $1 > memory.limit_in_bytes
+ if [ $4 -eq 1 ]; then
+ if [ -e memory.memsw.limit_in_bytes ]; then
+ echo $1 > memory.memsw.limit_in_bytes
+ else
+ tst_resm TCONF "mem+swap is not enabled"
+ return
+ fi
+ fi
+
+ $TEST_PATH/memcg_process $2 -s $3 &
+ pid=$!
+ sleep 1
+ echo $pid > tasks
+
+ kill -s USR1 $pid 2> /dev/null
+ sleep 1
+
+ ps -p $pid > /dev/null 2> /dev/null
+ if [ $? -ne 0 ]; then
+ wait $pid
+ if [ $? -eq 1 ]; then
+ result $FAIL "process $pid is killed by error"
+ else
+ result $PASS "process $pid is killed"
+ fi
+ else
+ kill -s INT $pid 2> /dev/null
+ result $FAIL "process $pid is not killed"
+ fi
+}
+
+# Test limit_in_bytes will be aligned to PAGESIZE
+# $1 - user input value
+# $2 - expected value
+# $3 - use mem+swap limitation
+test_limit_in_bytes()
+{
+ echo $1 > memory.limit_in_bytes
+ if [ $3 -eq 1 ]; then
+ if [ -e memory.memsw.limit_in_bytes ]; then
+ echo $1 > memory.memsw.limit_in_bytes
+ limit=`cat memory.memsw.limit_in_bytes`
+ else
+ tst_resm TCONF "mem+swap is not enabled"
+ return
+ fi
+ else
+ limit=`cat memory.limit_in_bytes`
+ fi
+
+ if [ $limit -eq $2 ]; then
+ result $PASS "input=$1, limit_in_bytes=$limit"
+ else
+ result $FAIL "input=$1, limit_in_bytes=$limit"
+ fi
+}
+
+# Test memory controller doesn't charge hugepage
+# $1 - the value of /proc/sys/vm/nr_hugepages
+# $2 - the parameters of 'process', --mmap-file or --shm
+# $3 - the -s parameter of 'process', such as $HUGEPAGESIZE
+# $4 - 0: expected failure, 1: expected success
+test_hugepage()
+{
+ TMP_FILE=$TEST_PATH/tmp
+ nr_hugepages=`cat /proc/sys/vm/nr_hugepages`
+
+ mkdir /hugetlb
+ mount -t hugetlbfs none /hugetlb
+
+ echo $1 > /proc/sys/vm/nr_hugepages
+
+ $TEST_PATH/memcg_process $2 --hugepage -s $3 > $TMP_FILE 2>&1 &
+ sleep 1
+
+ kill -s USR1 $! 2> /dev/null
+ sleep 1
+
+ check_mem_stat "rss" 0
+
+ echo "TMP_FILE:"
+ cat $TMP_FILE
+
+ if [ $4 -eq 0 ]; then
+ test -s $TMP_FILE
+ if [ $? -eq 0 ]; then
+ result $PASS "allocate hugepage failed as expected"
+ else
+ kill -s USR1 $! 2> /dev/null
+ kill -s INT $! 2> /dev/null
+ result $FAIL "allocate hugepage shoud fail"
+ fi
+ else
+ test ! -s $TMP_FILE
+ if [ $? -eq 0 ]; then
+ kill -s USR1 $! 2> /dev/null
+ kill -s INT $! 2> /dev/null
+ result $PASS "allocate hugepage succeeded"
+ else
+ result $FAIL "allocate hugepage failed"
+ fi
+ fi
+
+ sleep 1
+ rm -rf $TMP_FILE
+ umount /hugetlb
+ rmdir /hugetlb
+ echo $nr_hugepages > /proc/sys/vm/nr_hugepages
+}
+
+# Test the memory charge won't move to subgroup
+# $1 - memory.limit_in_bytes in parent group
+# $2 - memory.limit_in_bytes in sub group
+test_subgroup()
+{
+ mkdir subgroup
+ echo $1 > memory.limit_in_bytes
+ echo $2 > subgroup/memory.limit_in_bytes
+
+ echo "Running $TEST_PATH/memcg_process --mmap-anon -s $PAGESIZE"
+ $TEST_PATH/memcg_process --mmap-anon -s $PAGESIZE &
+ sleep 1
+
+ warmup $!
+ if [ $? -ne 0 ]; then
+ return
+ fi
+
+ echo $! > tasks
+ kill -s USR1 $! 2> /dev/null
+ sleep 1
+ check_mem_stat "rss" $PAGESIZE
+
+ cd subgroup
+ echo $! > tasks
+ check_mem_stat "rss" 0
+
+ # cleanup
+ cd ..
+ echo $! > tasks
+ kill -s INT $! 2> /dev/null
+ sleep 1
+ rmdir subgroup
+}
+
+# Run test cases which test memory.move_charge_at_immigrate
+# $1 - the parameters of 'process', such as --shm
+# $2 - the -s parameter of 'process', such as 4096
+# $3 - some positive value, such as 1
+# $4 - the expected size
+# $5 - the expected size
+test_move_charge()
+{
+ mkdir subgroup_a
+
+ $TEST_PATH/memcg_process $1 -s $2 &
+ sleep 1
+ warmup $!
+ if [ $? -ne 0 ]; then
+ rmdir subgroup_a
+ return
+ fi
+
+ echo $! > subgroup_a/tasks
+ kill -s USR1 $!
+ sleep 1
+
+ mkdir subgroup_b
+ echo $3 > subgroup_b/memory.move_charge_at_immigrate
+ echo $! > subgroup_b/tasks
+
+ cd subgroup_b
+ check_mem_stat memory.usage_in_bytes $4
+ cd ../subgroup_a
+ check_mem_stat memory.usage_in_bytes $5
+
+ cd ..
+ echo $! > tasks
+ kill -s USR1 $!
+ kill -s INT $!
+ sleep 1
+ rmdir subgroup_a subgroup_b
+}
+
+cleanup()
+{
+ killall -9 memcg_process 2>/dev/null
+ if [ -e /dev/memcg ]; then
+ umount /dev/memcg 2>/dev/null
+ rmdir /dev/memcg 2>/dev/null
+ fi
+}
+
+
+do_mount()
+{
+ cleanup
+
+ mkdir /dev/memcg 2> /dev/null
+ mount -t cgroup -omemory memcg /dev/memcg
+}
+
--
1.7.1
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^ permalink raw reply related [flat|nested] 4+ messages in thread* Re: [LTP] [PATCH v3 1/8] A library used to test memcg
[not found] <4F17D4D0.9090200@cn.fujitsu.com>
2012-01-19 8:45 ` [LTP] [PATCH v3 1/8] A library used to test memcg Peng Haitao
@ 2012-01-20 12:06 ` Jan Stancek
2012-01-20 14:52 ` Cyril Hrubis
2012-01-26 6:02 ` Peng Haitao
1 sibling, 2 replies; 4+ messages in thread
From: Jan Stancek @ 2012-01-20 12:06 UTC (permalink / raw)
To: Peng Haitao; +Cc: LTP List
----- Original Message -----
> From: "Peng Haitao" <penght@cn.fujitsu.com>
> To: "Cyril Hrubis" <chrubis@suse.cz>, "Garrett Cooper" <yanegomi@gmail.com>, "Jan Stancek" <jstancek@redhat.com>,
> "Mike Frysinger" <vapier@gentoo.org>
> Cc: "LTP List" <ltp-list@lists.sourceforge.net>
> Sent: Thursday, January 19, 2012 9:31:12 AM
> Subject: [LTP] [PATCH v3 1/8] A library used to test memcg
>
Hi,
last update of this series had different version on some patches,
some were v2 and some v3. I'll be referring to it as 'v3'.
I ran all v3 test cases. They worked fine, just 2 comments:
1. file mode of new test cases is 644, existing one (memcg_function_test) is 755.
I'm not sure if installation process takes care of this, I put them to testcases/bin
directly (I was lazy), so I had to "chmod a+x" new ones to run them.
2. memcg_use_hierarchy generates some errors, which are expected
For example:
ltp/testcases/bin/memcg_use_hierarchy_test.sh: line 53: echo: write error: Device or resource busy
testcases/bin/memcg_use_hierarchy_test.sh: line 64: echo: write error: Invalid argument
Just by reading log, it isn't obvious, that these errors are expected.
I'd suggest "2> /dev/null" or if you want to keep it in log, then add
some note, that these are expected.
Regards,
Jan
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^ permalink raw reply [flat|nested] 4+ messages in thread