205 lines
6.4 KiB
Bash
Executable File
205 lines
6.4 KiB
Bash
Executable File
#!/bin/bash
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#
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# Copyright(c) 2012-2019 Intel Corporation
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# SPDX-License-Identifier: BSD-3-Clause-Clear
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#
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# The line below specified that line under it should be used as the test's short description when launching test via run_tests script.
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# The text should not be longer than 80 chars - if it is, the script will strip addititonal characters
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# DESCRIPTION Verify cache and core read and write stats in WT in PT mode
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# The line below says that this test should be included in BVT - it will be launched, when we use "./run_tests -b"
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# Standard beginning for every test - get the main tests directory and
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# link the cas_lib file for CAS API, then use "start_test $*" to pass params
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# and do other necessary checks and setup.
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TESTS_DIR="$(dirname $0)/../"
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. $TESTS_DIR/cas_lib
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start_test $*
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CACHE_DEVICE_SIZE=1G
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CORE_DEVICE_SIZE=10G
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TEST_DEVICE=${DEVICE_NAME}1-1
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#param device
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get_stat_sectors_read() {
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L_DEVICE=$(basename $1)
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L_STAT=$(cat /proc/diskstats | grep $L_DEVICE | awk '{ print $6 }')
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echo $L_STAT
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}
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#param device
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get_stat_sectors_written() {
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L_DEVICE=$(basename $1)
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L_STAT=$(cat /proc/diskstats | grep $L_DEVICE | awk '{ print $10 }')
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echo $L_STAT
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}
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cache_suspend_init() {
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# Use CACHE_DEVICE and CORE_DEVICE provided by configuration file and remove partitions from those devices
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TARGET_DEVICE_OPTION="$CACHE_DEVICE" remove_partitions
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TARGET_DEVICE_OPTION="$CORE_DEVICE" remove_partitions
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# Create 1 primary partitions on CACHE_DEVICE
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TARGET_DEVICE_OPTION="$CACHE_DEVICE" PARTITION_SIZE_OPTION=$CACHE_DEVICE_SIZE PARTITION_IDS_OPTION="1" make_primary_partitions
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# Create 1 primary partitions on CORE_DEVICE
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TARGET_DEVICE_OPTION="$CORE_DEVICE" PARTITION_SIZE_OPTION=$CORE_DEVICE_SIZE PARTITION_IDS_OPTION="1" make_primary_partitions
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run_cmd dd if=/dev/zero of="${CORE_DEVICE}1" bs=1M count=1 oflag=direct
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# Start cache on CACHE_DEVICE1
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CACHE_ID_OPTION="1" CACHE_DEVICE_OPTION="${CACHE_DEVICE}1" start_cache
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# Add a core device using CORE_DEVICE1
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CACHE_ID_OPTION="1" CORE_DEVICE_OPTION="${CORE_DEVICE}1" add_core
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}
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cache_suspend_deinit() {
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# Remove the core device from cache
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CACHE_ID_OPTION="1" CORE_ID_OPTION="1" remove_core
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# Clean up after the test
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CACHE_ID_OPTION="1" stop_cache
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}
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cache_suspend_test() {
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L_CACHE_READS_BEFORE=
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L_CACHE_READS_AFTER=
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L_CACHE_WRITES_BEFORE=
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L_CACHE_WRITES_AFTER=
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L_CORE_READS_BEFORE=
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L_CORE_READS_AFTER=
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# Write
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test_log_trace "Write 4k to be cached"
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dd if=/dev/urandom of=${TEST_DEVICE} bs=4k count=1 oflag=direct
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# Suspend the cache, flush dirty data.
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test_log_trace "Suspend Cache"
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CACHE_MODE_FLUSH_OPTION="yes" CACHE_ID_OPTION="1" CACHE_MODE_OPTION="pt" set_cache_mode
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# Get read cache statistics before.
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L_CACHE_READS_BEFORE=$(get_stat_sectors_read ${CACHE_DEVICE}1)
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# Read file
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test_log_trace "Read 4k, Read has to be performed from core"
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dd if=${TEST_DEVICE} of=/dev/null bs=4k count=1 iflag=direct
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# Sync
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sync && echo 3 > /proc/sys/vm/drop_caches
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L_CACHE_READS_AFTER=$(get_stat_sectors_read ${CACHE_DEVICE}1)
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test_log_trace "Cache reads before : $L_CACHE_READS_BEFORE"
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test_log_trace "Cache reads after : $L_CACHE_READS_AFTER"
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if [ ${L_CACHE_READS_AFTER} != ${L_CACHE_READS_BEFORE} ]
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then
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test_log_trace "Unexpected reads from cache"
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return 1
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fi
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test_log_trace "Write 4k shall invalidet cached data, write on core only"
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# Write (Invalidate cached data)
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dd if=/dev/urandom of=${TEST_DEVICE} bs=4k count=1 oflag=direct
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# Sync
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sync && echo 3 > /proc/sys/vm/drop_caches
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# Get statistics
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L_CACHE_WRITES_BEFORE=$(get_stat_sectors_written ${CACHE_DEVICE}1)
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L_CORE_READS_BEFORE=$(get_stat_sectors_read ${CORE_DEVICE}1)
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L_CACHE_READS_BEFORE=$(get_stat_sectors_read ${CACHE_DEVICE}1)
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# Read file
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test_log_trace "Read 4k, read form core only"
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dd if=${TEST_DEVICE} of=/tmp/baba bs=4k count=1 iflag=direct
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# Sync
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sync && echo 3 > /proc/sys/vm/drop_caches
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# Get statistics
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L_CACHE_WRITES_AFTER=$(get_stat_sectors_written ${CACHE_DEVICE}1)
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L_CORE_READS_AFTER=$(get_stat_sectors_read ${CORE_DEVICE}1)
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L_CACHE_READS_AFTER=$(get_stat_sectors_read ${CACHE_DEVICE}1)
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test_log_trace "Core reads before : $L_CORE_READS_BEFORE"
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test_log_trace "Core reads after : $L_CORE_READS_AFTER"
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if [ "$L_CORE_READS_BEFORE" == "$L_CORE_READS_AFTER" ]
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then
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test_log_trace "Expected reads from core"
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return 1
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fi
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test_log_trace "Cache writes before : $L_CACHE_WRITES_BEFORE"
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test_log_trace "Cache wrties after : $L_CACHE_WRITES_AFTER"
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if [ "$L_CACHE_WRITES_BEFORE" != "$L_CACHE_WRITES_AFTER" ]
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then
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test_log_trace "Unexpected writes on cache"
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return 1
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fi
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# Sync
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sync && echo 3 > /proc/sys/vm/drop_caches
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test_log_trace "Resume cache"
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# Resume the cache
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CACHE_ID_OPTION="1" CACHE_MODE_OPTION="wt" set_cache_mode
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L_CACHE_WRITES_BEFORE=$(get_stat_sectors_written ${CACHE_DEVICE}1)
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L_CORE_READS_BEFORE=$(get_stat_sectors_read ${CORE_DEVICE}1)
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test_log_trace "Read 4k, read form core, write on cache"
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# Read file
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dd if=${TEST_DEVICE} of=/dev/null bs=4k count=1 iflag=direct
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# Sync
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sync && echo 3 > /proc/sys/vm/drop_caches
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L_CORE_READS_AFTER=$(get_stat_sectors_read ${CORE_DEVICE}1)
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L_CACHE_WRITES_AFTER=$(get_stat_sectors_written ${CACHE_DEVICE}1)
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test_log_trace "Core reads before : $L_CORE_READS_BEFORE"
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test_log_trace "Core reads after : $L_CORE_READS_AFTER"
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test_log_trace "Cache writes before : $L_CACHE_WRITES_BEFORE"
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test_log_trace "Cache wrties after : $L_CACHE_WRITES_AFTER"
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if [ "$L_CORE_READS_BEFORE" == "$L_CORE_READS_AFTER" ]
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then
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test_log_trace "Expected reads from core"
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return 1
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fi
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if [ "$L_CACHE_WRITES_BEFORE" == "$L_CACHE_WRITES_AFTER" ]
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then
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test_log_trace "Expected writes on cache"
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return 1
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fi
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return 0
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}
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#
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# START TEST
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#
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test_log_start
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run_cmd cache_suspend_init
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run_cmd cache_suspend_test
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run_cmd cache_suspend_deinit
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test_log_stop
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#
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# END TEST
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#
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# Always return 0 at the end of the test - if at any point something has failed
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# in the API functions, test will end and return a proper result.
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# If you need to check other things during the test and end the test earlier, you
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# should end the test using "end_test $retval" function
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end_test 0
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