Gen-ust-events: use options instead of arguments
[lttng-tools.git] / tests / regression / tools / snapshots / ust_test
index a35fbf37fb9022c22946bd9c96dcd7f4a3427548..2d585fd531595920ebc02c0ba89296081f009e21 100755 (executable)
@@ -19,16 +19,14 @@ TEST_DESC="Snapshots - UST tracing"
 CURDIR=$(dirname $0)/
 TESTDIR=$CURDIR/../../..
 EVENT_NAME="tp:tptest"
-PID_RELAYD=0
 SESSION_NAME=""
 CHANNEL_NAME="snapchan"
 TESTAPP_PATH="$TESTDIR/utils/testapp"
 TESTAPP_NAME="gen-ust-events"
 TESTAPP_BIN="$TESTAPP_PATH/$TESTAPP_NAME/$TESTAPP_NAME"
-NR_ITER=2000000
-NR_USEC_WAIT=100
+APPS_PID=
 
-NUM_TESTS=76
+NUM_TESTS=100
 
 TRACE_PATH=$(mktemp -d)
 
@@ -48,11 +46,13 @@ NUM_TESTS=$(($NUM_TESTS + ($NR_SNAPSHOT * 2)))
 
 function start_test_app()
 {
-       local tmp_file="/tmp/lttng_test_ust.42.file"
+       local tmp_file=$(mktemp -u)
 
        # Start application with a temporary file.
-       $TESTAPP_BIN $NR_ITER $NR_USEC_WAIT $tmp_file &
-       ok $? "Start application to trace"
+       $TESTAPP_BIN -i $NR_ITER -w $NR_USEC_WAIT --sync-after-first-event $tmp_file &
+       ret=$?
+       APPS_PID="${APPS_PID} ${!}"
+       ok $ret "Start application to trace"
 
        # Wait for the application file to appear indicating that at least one
        # tracepoint has been fired.
@@ -63,13 +63,22 @@ function start_test_app()
        rm -f $tmp_file
 }
 
-function stop_test_app()
+function wait_test_apps()
+{
+       diag "Waiting for $TESTAPP_NAME"
+       for p in ${APPS_PID}; do
+               wait ${p} 2>/dev/null
+       done
+}
+
+function stop_test_apps()
 {
-       diag "Killing $TESTAPP_NAME"
-       PID_APP=`pidof $TESTAPP_NAME`
-       kill $PID_APP >/dev/null 2>&1
-       diag "Waiting on $TESTAPP_NAME"
-       wait
+       diag "Stopping $TESTAPP_NAME"
+       for p in ${APPS_PID}; do
+               kill ${p}
+               wait ${p} 2>/dev/null
+       done
+       APPS_PID=
 }
 
 function snapshot_add_output ()
@@ -118,6 +127,31 @@ function enable_mmap_overwrite_subbuf_ust_channel ()
        ok $? "Enable channel $channel_name for session $sess_name with subbuf size $subbuf_size"
 }
 
+function enable_mmap_small_discard_ust_channel ()
+{
+       local sess_name=$1
+       local chan_name=$2
+
+       $TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-channel -s $sess_name \
+               $chan_name -u --output mmap --discard \
+               --subbuf-size $(getconf PAGE_SIZE) --num-subbuf 2 \
+               > /dev/null 2>&1
+
+       ok $? "Enable channel $channel_name for session $sess_name with small discard buffers"
+}
+
+function enable_mmap_small_overwrite_ust_channel ()
+{
+       local sess_name=$1
+       local chan_name=$2
+
+       $TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-channel -s $sess_name \
+               $chan_name -u --output mmap --overwrite \
+               --subbuf-size $(getconf PAGE_SIZE) --num-subbuf 2 \
+               > /dev/null 2>&1
+
+       ok $? "Enable channel $channel_name for session $sess_name with small discard buffers"
+}
 
 function test_ust_list_output ()
 {
@@ -126,9 +160,9 @@ function test_ust_list_output ()
        diag "Test UST snapshot output listing"
        create_lttng_session_no_output $SESSION_NAME
        enable_lttng_mmap_overwrite_ust_channel $SESSION_NAME $CHANNEL_NAME
-       enable_ust_lttng_event $SESSION_NAME $EVENT_NAME $CHANNEL_NAME
+       enable_ust_lttng_event_ok $SESSION_NAME $EVENT_NAME $CHANNEL_NAME
 
-       start_lttng_tracing $SESSION_NAME
+       start_lttng_tracing_ok $SESSION_NAME
 
        snapshot_add_output $SESSION_NAME "file://$TRACE_PATH" ${output_names[0]}
 
@@ -145,42 +179,138 @@ function test_ust_list_output ()
 
        ok $? "Snapshot named ${output_names[1]} present in list-output listing"
 
-       stop_lttng_tracing $SESSION_NAME
-       destroy_lttng_session $SESSION_NAME
+       stop_lttng_tracing_ok $SESSION_NAME
+       destroy_lttng_session_ok $SESSION_NAME
 }
 
 function test_ust_local_snapshot ()
 {
+       NR_ITER=-1
+       NR_USEC_WAIT=100
+
        diag "Test local UST snapshots"
        create_lttng_session_no_output $SESSION_NAME
        enable_lttng_mmap_overwrite_ust_channel $SESSION_NAME $CHANNEL_NAME
-       enable_ust_lttng_event $SESSION_NAME $EVENT_NAME $CHANNEL_NAME
-       start_lttng_tracing $SESSION_NAME
-       lttng_snapshot_add_output $SESSION_NAME $TRACE_PATH
+       enable_ust_lttng_event_ok $SESSION_NAME $EVENT_NAME $CHANNEL_NAME
+       start_lttng_tracing_ok $SESSION_NAME
+       lttng_snapshot_add_output_ok $SESSION_NAME $TRACE_PATH
 
        # Returns once the application has at least fired ONE tracepoint.
        start_test_app
 
        lttng_snapshot_record $SESSION_NAME
-       stop_lttng_tracing $SESSION_NAME
-       destroy_lttng_session $SESSION_NAME
+       stop_lttng_tracing_ok $SESSION_NAME
+       destroy_lttng_session_ok $SESSION_NAME
 
        # Validate test
        validate_trace $EVENT_NAME $TRACE_PATH/
        if [ $? -eq 0 ]; then
                # Only delete if successful
                rm -rf $TRACE_PATH
+       fi
+
+       stop_test_apps
+}
+
+function test_ust_local_snapshot_small_discard_buffers ()
+{
+       NR_ITER=10000
+       NR_USEC_WAIT=0
+       OLDCPUSET=$(taskset -p $$)
+
+       diag "Test local UST snapshots with small discard buffers"
+       taskset -p 0x1 $$ 1>/dev/null 2>&1      # CPU 0 only
+       create_lttng_session_no_output $SESSION_NAME
+       enable_mmap_small_discard_ust_channel $SESSION_NAME $CHANNEL_NAME
+       enable_ust_lttng_event_ok $SESSION_NAME $EVENT_NAME $CHANNEL_NAME
+       start_lttng_tracing_ok $SESSION_NAME
+       lttng_snapshot_add_output_ok $SESSION_NAME $TRACE_PATH
+
+       # Run test apps, wait for them to complete.
+       start_test_app
+       wait_test_apps
+
+       # Take first snapshot, remember first line.
+       lttng_snapshot_record $SESSION_NAME
+       FIRST_LINE="$(trace_first_line $TRACE_PATH/)"
+       diag "First line (1st snapshot): $FIRST_LINE"
+       rm -rf $TRACE_PATH/
+
+       # Run test apps, wait for them to complete.
+       start_test_app
+       wait_test_apps
+
+       # Take second snapshot, remember first line.
+       lttng_snapshot_record $SESSION_NAME
+       FIRST_LINE_2="$(trace_first_line $TRACE_PATH/)"
+       diag "First line (2nd snapshot): $FIRST_LINE_2"
+       rm -rf $TRACE_PATH/
+
+       if [ x"$FIRST_LINE" != x"$FIRST_LINE_2" ]; then
+               fail "First snapshot event do not match."
+       else
+               pass "First snapshot event match."
+       fi
+
+       stop_lttng_tracing_ok $SESSION_NAME
+       destroy_lttng_session_ok $SESSION_NAME
+       taskset -p $OLDCPUSET $$ 1>/dev/null 2>&1
+}
+
+function test_ust_local_snapshot_small_overwrite_buffers ()
+{
+       NR_ITER=10000
+       NR_USEC_WAIT=0
+       OLDCPUSET=$(taskset -p $$)
+
+       diag "Test local UST snapshots with small overwrite buffers"
+       taskset -p 0x1 $$ 1>/dev/null 2>&1      # CPU 0 only
+       create_lttng_session_no_output $SESSION_NAME
+       enable_mmap_small_overwrite_ust_channel $SESSION_NAME $CHANNEL_NAME
+       enable_ust_lttng_event_ok $SESSION_NAME $EVENT_NAME $CHANNEL_NAME
+       start_lttng_tracing_ok $SESSION_NAME
+       lttng_snapshot_add_output_ok $SESSION_NAME $TRACE_PATH
+
+       # Run test apps, wait for them to complete.
+       start_test_app
+       wait_test_apps
+
+       # Take first snapshot, remember first line.
+       lttng_snapshot_record $SESSION_NAME
+       FIRST_LINE="$(trace_first_line $TRACE_PATH/)"
+       diag "First line (1st snapshot): $FIRST_LINE"
+       rm -rf $TRACE_PATH/
+
+       # Run test apps, wait for them to complete.
+       start_test_app
+       wait_test_apps
+
+       # Take second snapshot, remember first line.
+       lttng_snapshot_record $SESSION_NAME
+       FIRST_LINE_2="$(trace_first_line $TRACE_PATH/)"
+       diag "First line (2nd snapshot): $FIRST_LINE_2"
+       rm -rf $TRACE_PATH/
+
+       if [ x"$FIRST_LINE" != x"$FIRST_LINE_2" ]; then
+               pass "First snapshot event do not match."
        else
-               break
+               fail "First snapshot event match."
        fi
 
-       stop_test_app
+       stop_lttng_tracing_ok $SESSION_NAME
+       destroy_lttng_session_ok $SESSION_NAME
+       taskset -p $OLDCPUSET $$ 1>/dev/null 2>&1
 }
 
 function test_ust_local_snapshot_max_size ()
 {
-       subbuf_size=8192
-       num_cpus=`nproc`
+       NR_ITER=-1
+       NR_USEC_WAIT=100
+       page_size=`getconf PAGE_SIZE`
+       num_cpus=$(conf_proc_count)
+
+       # The minimum subbuf size is the platform PAGE_SIZE
+       subbuf_size=$(($page_size*2))
 
        # The minimum size limit is min(subbuf_size) * nb_streams
        max_size=$(($subbuf_size*$num_cpus))
@@ -190,8 +320,8 @@ function test_ust_local_snapshot_max_size ()
 
        enable_mmap_overwrite_subbuf_ust_channel $SESSION_NAME $CHANNEL_NAME $subbuf_size
 
-       enable_ust_lttng_event $SESSION_NAME $EVENT_NAME $CHANNEL_NAME
-       start_lttng_tracing $SESSION_NAME
+       enable_ust_lttng_event_ok $SESSION_NAME $EVENT_NAME $CHANNEL_NAME
+       start_lttng_tracing_ok $SESSION_NAME
 
        snapshot_add_output $SESSION_NAME "file://$TRACE_PATH" "" $max_size
 
@@ -211,8 +341,8 @@ function test_ust_local_snapshot_max_size ()
 
        pass "Tracefiles size sum validation"
 
-       stop_lttng_tracing $SESSION_NAME
-       destroy_lttng_session $SESSION_NAME
+       stop_lttng_tracing_ok $SESSION_NAME
+       destroy_lttng_session_ok $SESSION_NAME
 
        # Validate test
        validate_trace $EVENT_NAME $TRACE_PATH/
@@ -222,7 +352,7 @@ function test_ust_local_snapshot_max_size ()
                rm -rf $TRACE_PATH
        fi
 
-       stop_test_app
+       stop_test_apps
 }
 
 function test_ust_local_snapshot_large_metadata ()
@@ -235,22 +365,20 @@ function test_ust_local_snapshot_large_metadata ()
        diag "Test local UST snapshots with > 4kB metadata"
        create_lttng_session_no_output $SESSION_NAME
        enable_lttng_mmap_overwrite_ust_channel $SESSION_NAME $CHANNEL_NAME
-       enable_ust_lttng_event $SESSION_NAME $LM_EVENT $CHANNEL_NAME
-       start_lttng_tracing $SESSION_NAME
-       lttng_snapshot_add_output $SESSION_NAME $TRACE_PATH
+       enable_ust_lttng_event_ok $SESSION_NAME $LM_EVENT $CHANNEL_NAME
+       start_lttng_tracing_ok $SESSION_NAME
+       lttng_snapshot_add_output_ok $SESSION_NAME $TRACE_PATH
        $LM_BIN 1 1
        ok $? "Start application to trace"
        lttng_snapshot_record $SESSION_NAME
-       stop_lttng_tracing $SESSION_NAME
-       destroy_lttng_session $SESSION_NAME
+       stop_lttng_tracing_ok $SESSION_NAME
+       destroy_lttng_session_ok $SESSION_NAME
 
        # Validate test
        validate_trace $LM_EVENT $TRACE_PATH/
        if [ $? -eq 0 ]; then
                # Only delete if successful
                rm -rf $TRACE_PATH
-       else
-               break
        fi
 }
 
@@ -265,67 +393,71 @@ function enable_channel_per_uid_mmap_overwrite()
 
 function test_ust_per_uid_local_snapshot ()
 {
-       diag "Test local UST snapshots"
+       NR_ITER=-1
+       NR_USEC_WAIT=100
+       diag "Test per-uid local UST snapshots"
        create_lttng_session_no_output $SESSION_NAME
        enable_channel_per_uid_mmap_overwrite $SESSION_NAME $CHANNEL_NAME
-       enable_ust_lttng_event $SESSION_NAME $EVENT_NAME $CHANNEL_NAME
-       start_lttng_tracing $SESSION_NAME
-       lttng_snapshot_add_output $SESSION_NAME $TRACE_PATH
+       enable_ust_lttng_event_ok $SESSION_NAME $EVENT_NAME $CHANNEL_NAME
+       start_lttng_tracing_ok $SESSION_NAME
+       lttng_snapshot_add_output_ok $SESSION_NAME $TRACE_PATH
 
        # Returns once the application has at least fired ONE tracepoint.
        start_test_app
 
        lttng_snapshot_record $SESSION_NAME
-       stop_lttng_tracing $SESSION_NAME
-       destroy_lttng_session $SESSION_NAME
+       stop_lttng_tracing_ok $SESSION_NAME
+       destroy_lttng_session_ok $SESSION_NAME
 
        # Validate test
        validate_trace $EVENT_NAME $TRACE_PATH/
        if [ $? -eq 0 ]; then
                # Only delete if successful
                rm -rf $TRACE_PATH
-       else
-               break
        fi
 
-       stop_test_app
+       stop_test_apps
 }
 
 function test_ust_per_uid_local_snapshot_post_mortem ()
 {
+       NR_ITER=-1
+       NR_USEC_WAIT=100
+
        diag "Test local UST snapshots post-mortem"
        create_lttng_session_no_output $SESSION_NAME
        enable_channel_per_uid_mmap_overwrite $SESSION_NAME $CHANNEL_NAME
-       enable_ust_lttng_event $SESSION_NAME $EVENT_NAME $CHANNEL_NAME
-       start_lttng_tracing $SESSION_NAME
-       lttng_snapshot_add_output $SESSION_NAME $TRACE_PATH
+       enable_ust_lttng_event_ok $SESSION_NAME $EVENT_NAME $CHANNEL_NAME
+       start_lttng_tracing_ok $SESSION_NAME
+       lttng_snapshot_add_output_ok $SESSION_NAME $TRACE_PATH
 
        # Returns once the application has at least fired ONE tracepoint.
        start_test_app
-       stop_test_app
+       stop_test_apps
 
        lttng_snapshot_record $SESSION_NAME
-       stop_lttng_tracing $SESSION_NAME
-       destroy_lttng_session $SESSION_NAME
+       stop_lttng_tracing_ok $SESSION_NAME
+       destroy_lttng_session_ok $SESSION_NAME
 
        # Validate test
        validate_trace $EVENT_NAME $TRACE_PATH/
        if [ $? -eq 0 ]; then
                # Only delete if successful
                rm -rf $TRACE_PATH
-       else
-               break
        fi
 }
 
 function test_ust_local_snapshots ()
 {
+       NR_ITER=-1
+       NR_USEC_WAIT=100
+
        diag "Test $NR_SNAPSHOT local UST snapshots"
        create_lttng_session_no_output $SESSION_NAME
        enable_lttng_mmap_overwrite_ust_channel $SESSION_NAME $CHANNEL_NAME
-       enable_ust_lttng_event $SESSION_NAME $EVENT_NAME $CHANNEL_NAME
-       start_lttng_tracing $SESSION_NAME
-       lttng_snapshot_add_output $SESSION_NAME $TRACE_PATH
+       enable_ust_lttng_event_ok $SESSION_NAME $EVENT_NAME $CHANNEL_NAME
+       start_lttng_tracing_ok $SESSION_NAME
+       lttng_snapshot_add_output_ok $SESSION_NAME $TRACE_PATH
 
        # Returns once the application has at least fired ONE tracepoint.
        start_test_app
@@ -339,14 +471,12 @@ function test_ust_local_snapshots ()
                if [ $? -eq 0 ]; then
                        # Only delete if successful
                        rm -rf $TRACE_PATH
-               else
-                       break
                fi
        done
-       stop_lttng_tracing $SESSION_NAME
-       destroy_lttng_session $SESSION_NAME
+       stop_lttng_tracing_ok $SESSION_NAME
+       destroy_lttng_session_ok $SESSION_NAME
 
-       stop_test_app
+       stop_test_apps
 }
 
 plan_tests $NUM_TESTS
@@ -354,14 +484,16 @@ plan_tests $NUM_TESTS
 print_test_banner "$TEST_DESC"
 
 start_lttng_sessiond
-
 tests=( test_ust_list_output
        test_ust_local_snapshot
        test_ust_local_snapshot_max_size
        test_ust_per_uid_local_snapshot
        test_ust_per_uid_local_snapshot_post_mortem
        test_ust_local_snapshot_large_metadata
-       test_ust_local_snapshots)
+       test_ust_local_snapshots
+       test_ust_local_snapshot_small_discard_buffers
+       test_ust_local_snapshot_small_overwrite_buffers
+)
 
 for fct_test in ${tests[@]};
 do
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