run_test 150 "truncate/append tests"
function roc_hit() {
- local list=$(comma_list $(osts_nodes))
- local log=$TMP/${TESTSUITE}-$TESTNAME.param
- do_nodes $list "$LCTL get_param -n obdfilter.*.stats" >$log
+ local list=$(comma_list $(osts_nodes))
+
+ ACCNUM=$(do_nodes $list $LCTL get_param -n obdfilter.*.stats | \
+ awk '/'cache_hit'/ {sum+=$2} END {print sum}')
+ echo $ACCNUM
+}
+
+function set_cache() {
+ local on=1
+
+ if [ "$2" == "off" ]; then
+ on=0;
+ fi
+ local list=$(comma_list $(osts_nodes))
+ do_nodes $list lctl set_param obdfilter.*.${1}_cache_enable $on
- local ACCNUM=`awk '/^cache_hit/ {sum=sum+$2} END{print sum}' $log`
- rm -f $log
- echo $ACCNUM
+ cancel_lru_locks osc
}
test_151() {
}
run_test 154 "Opening a file by FID"
+test_155_load() {
+ local temp=$TMP/$tfile
+ local file=$DIR/$tfile
+ local list=$(comma_list $(osts_nodes))
+ local big=$(do_nodes $list grep "cache" /proc/cpuinfo | \
+ awk '{sum+=$4} END{print sum}')
+
+ log big is $big K
+
+ dd if=/dev/urandom of=$temp bs=6096 count=1 || \
+ error "dd of=$temp bs=6096 count=1 failed"
+ cp $temp $file
+ cancel_lru_locks osc
+ cmp $temp $file || error "$temp $file differ"
+
+ $TRUNCATE $temp 6000
+ $TRUNCATE $file 6000
+ cmp $temp $file || error "$temp $file differ (truncate1)"
+
+ echo "12345" >>$temp
+ echo "12345" >>$file
+ cmp $temp $file || error "$temp $file differ (append1)"
+
+ echo "12345" >>$temp
+ echo "12345" >>$file
+ cmp $temp $file || error "$temp $file differ (append2)"
+
+ dd if=/dev/urandom of=$temp bs=$((big*2)) count=1k || \
+ error "dd of=$temp bs=$((big*2)) count=1k failed"
+ cp $temp $file
+ ls -lh $temp $file
+ cancel_lru_locks osc
+ cmp $temp $file || error "$temp $file differ"
+
+ rm -f $temp
+ true
+}
+
+test_155a() {
+ set_cache read on
+ set_cache writethrough on
+ test_155_load
+}
+run_test 155a "Verification of correctness: read cache:on write_cache:on"
+
+test_155b() {
+ set_cache read on
+ set_cache writethrough off
+ test_155_load
+}
+run_test 155b "Verification of correctness: read cache:on write_cache:off"
+
+test_155c() {
+ set_cache read off
+ set_cache writethrough on
+ test_155_load
+}
+run_test 155c "Verification of correctness: read cache:off write_cache:on"
+
+test_155d() {
+ set_cache read off
+ set_cache writethrough off
+ test_155_load
+}
+run_test 155d "Verification of correctness: read cache:off write_cache:off "
+
+test_156() {
+ local CPAGES=3
+ local BEFORE
+ local AFTER
+ local file="$DIR/$tfile"
+
+ log "Turn on read and write cache"
+ set_cache read on
+ set_cache writethrough on
+
+ log "Write data and read it back."
+ log "Read should be satisfied from the cache."
+ dd if=/dev/urandom of=$file bs=4k count=$CPAGES || error "dd failed"
+ BEFORE=`roc_hit`
+ cancel_lru_locks osc
+ cat $file >/dev/null
+ AFTER=`roc_hit`
+ if ! let "AFTER - BEFORE == CPAGES"; then
+ error "NOT IN CACHE: before: $BEFORE, after: $AFTER"
+ else
+ log "cache hits:: before: $BEFORE, after: $AFTER"
+ fi
+
+ log "Read again; it should be satisfied from the cache."
+ BEFORE=$AFTER
+ cancel_lru_locks osc
+ cat $file >/dev/null
+ AFTER=`roc_hit`
+ if ! let "AFTER - BEFORE == CPAGES"; then
+ error "NOT IN CACHE: before: $BEFORE, after: $AFTER"
+ else
+ log "cache hits:: before: $BEFORE, after: $AFTER"
+ fi
+
+
+ log "Turn off the read cache and turn on the write cache"
+ set_cache read off
+ set_cache writethrough on
+
+ log "Read again; it should be satisfied from the cache."
+ BEFORE=`roc_hit`
+ cancel_lru_locks osc
+ cat $file >/dev/null
+ AFTER=`roc_hit`
+ if ! let "AFTER - BEFORE == CPAGES"; then
+ error "NOT IN CACHE: before: $BEFORE, after: $AFTER"
+ else
+ log "cache hits:: before: $BEFORE, after: $AFTER"
+ fi
+
+ log "Read again; it should not be satisfied from the cache."
+ BEFORE=$AFTER
+ cancel_lru_locks osc
+ cat $file >/dev/null
+ AFTER=`roc_hit`
+ if ! let "AFTER - BEFORE == 0"; then
+ error "IN CACHE: before: $BEFORE, after: $AFTER"
+ else
+ log "cache hits:: before: $BEFORE, after: $AFTER"
+ fi
+
+ log "Write data and read it back."
+ log "Read should be satisfied from the cache."
+ dd if=/dev/urandom of=$file bs=4k count=$CPAGES || error "dd failed"
+ BEFORE=`roc_hit`
+ cancel_lru_locks osc
+ cat $file >/dev/null
+ AFTER=`roc_hit`
+ if ! let "AFTER - BEFORE == CPAGES"; then
+ error "NOT IN CACHE: before: $BEFORE, after: $AFTER"
+ else
+ log "cache hits:: before: $BEFORE, after: $AFTER"
+ fi
+
+ log "Read again; it should not be satisfied from the cache."
+ BEFORE=$AFTER
+ cancel_lru_locks osc
+ cat $file >/dev/null
+ AFTER=`roc_hit`
+ if ! let "AFTER - BEFORE == 0"; then
+ error "IN CACHE: before: $BEFORE, after: $AFTER"
+ else
+ log "cache hits:: before: $BEFORE, after: $AFTER"
+ fi
+
+
+ log "Turn off read and write cache"
+ set_cache read off
+ set_cache writethrough off
+
+ log "Write data and read it back"
+ log "It should not be satisfied from the cache."
+ rm -f $file
+ dd if=/dev/urandom of=$file bs=4k count=$CPAGES || error "dd failed"
+ cancel_lru_locks osc
+ BEFORE=`roc_hit`
+ cat $file >/dev/null
+ AFTER=`roc_hit`
+ if ! let "AFTER - BEFORE == 0"; then
+ error_ignore 20762 "IN CACHE: before: $BEFORE, after: $AFTER"
+ else
+ log "cache hits:: before: $BEFORE, after: $AFTER"
+ fi
+
+
+ log "Turn on the read cache and turn off the write cache"
+ set_cache read on
+ set_cache writethrough off
+
+ log "Write data and read it back"
+ log "It should not be satisfied from the cache."
+ rm -f $file
+ dd if=/dev/urandom of=$file bs=4k count=$CPAGES || error "dd failed"
+ BEFORE=`roc_hit`
+ cancel_lru_locks osc
+ cat $file >/dev/null
+ AFTER=`roc_hit`
+ if ! let "AFTER - BEFORE == 0"; then
+ error_ignore 20762 "IN CACHE: before: $BEFORE, after: $AFTER"
+ else
+ log "cache hits:: before: $BEFORE, after: $AFTER"
+ fi
+
+ log "Read again; it should be satisfied from the cache."
+ BEFORE=`roc_hit`
+ cancel_lru_locks osc
+ cat $file >/dev/null
+ AFTER=`roc_hit`
+ if ! let "AFTER - BEFORE == CPAGES"; then
+ error "NOT IN CACHE: before: $BEFORE, after: $AFTER"
+ else
+ log "cache hits:: before: $BEFORE, after: $AFTER"
+ fi
+
+ rm -f $file
+}
+run_test 156 "Verification of tunables ============================"
+
#Changelogs
err17935 () {
if [ $MDSCOUNT -gt 1 ]; then