From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from sog-mx-2.v43.ch3.sourceforge.com ([172.29.43.192] helo=mx.sourceforge.net) by sfs-ml-4.v29.ch3.sourceforge.com with esmtp (Exim 4.76) (envelope-from ) id 1RzieX-00031S-CT for ltp-list@lists.sourceforge.net; Tue, 21 Feb 2012 05:52:41 +0000 Received: from [222.73.24.84] (helo=song.cn.fujitsu.com) by sog-mx-2.v43.ch3.sourceforge.com with esmtp (Exim 4.76) id 1RzieU-000871-09 for ltp-list@lists.sourceforge.net; Tue, 21 Feb 2012 05:52:41 +0000 Message-ID: <4F433123.80702@cn.fujitsu.com> Date: Tue, 21 Feb 2012 13:52:35 +0800 From: Peng Haitao MIME-Version: 1.0 References: <4F20EB81.4030109@cn.fujitsu.com> In-Reply-To: <4F20EB81.4030109@cn.fujitsu.com> Subject: Re: [LTP] [PATCH v4 1/8] A library used to test memcg List-Id: Linux Test Project General Discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: ltp-list-bounces@lists.sourceforge.net To: Caspar Zhang Cc: LTP List Peng Haitao said the following on 2012-1-26 13:58: > > This library includes a set of functions used to test memcg. > Hi, Can you comment or commit the following patch? -- Best Regards, Peng > Signed-off-by: Peng Haitao > --- > .../controllers/memcg/functional/memcg_lib.sh | 410 ++++++++++++++++++++ > 1 files changed, 410 insertions(+), 0 deletions(-) > create mode 100755 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 100755 > index 0000000..f528c75 > --- /dev/null > +++ b/testcases/kernel/controllers/memcg/functional/memcg_lib.sh > @@ -0,0 +1,410 @@ > +#! /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 ## > +## ## > +################################################################################ > + > +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 > +} > > > > ------------------------------------------------------------------------------ > Keep Your Developer Skills Current with LearnDevNow! > The most comprehensive online learning library for Microsoft developers > is just $99.99! 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