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|
#!/bin/bash
#
# SPDX-FileCopyrightText: 2013 Christian Babeux <christian.babeux@efficios.com>
#
# SPDX-License-Identifier: LGPL-2.1-only
TEST_DESC="Tracefile size limits"
CURDIR=$(dirname $0)/
TESTDIR=$CURDIR/../../..
NR_ITER=1000
PAGE_SIZE=$(getconf PAGE_SIZE)
TESTAPP_PATH="$TESTDIR/utils/testapp"
TESTAPP_NAME="gen-ust-events"
TESTAPP_BIN="$TESTAPP_PATH/$TESTAPP_NAME/$TESTAPP_NAME"
NUM_TESTS=74
source $TESTDIR/utils/utils.sh
if [ ! -x "$TESTAPP_BIN" ]; then
BAIL_OUT "No UST events binary detected."
fi
function enable_lttng_channel_size_limit ()
{
sess_name="$1"
channel_name="$2"
tracefile_size_limit="$3"
test_name="Enable channel $channel_name "
test_name+="for session $sess_name: "
test_name+="$tracefile_size_limit bytes tracefile limit"
$TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-channel \
-u $channel_name -s $sess_name --buffer-ownership=process \
--subbuf-size=$PAGE_SIZE \
-C $tracefile_size_limit >/dev/null 2>&1
ok $? "$test_name"
}
function enable_ust_lttng_event_per_channel ()
{
sess_name="$1"
event_name="$2"
channel_name="$3"
test_name="Enable event $event_name "
test_name+="for session $sess_name "
test_name+="in channel $channel_name"
$TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-event "$event_name" \
-s $sess_name -u -c $channel_name >/dev/null 2>&1
ok $? "$test_name"
}
function check_file_size ()
{
path="$1"
file_pattern="$2"
expected_max_size="$3"
find $path -name "$file_pattern" -exec stat -c '%n %s' {} \; \
| while read file_info;
do
name=$(echo $file_info | cut -f1 -d ' ')
size=$(echo $file_info | cut -f2 -d ' ')
if [ "$size" -gt "$expected_max_size" ]; then
diag_msg="file: $name size: $size"
diag_msg+="expected maximum size: $expected_max_size"
diag "$diag_msg"
exit 1
fi
done
ok $? "File size validation"
}
function test_tracefile_size_limit ()
{
local size_limit="$1"
local trace_path=$(mktemp -d -t "tmp.${FUNCNAME[0]}_trace_path.XXXXXX")
local session_name=$(randstring 16 0)
local channel_name="channel"
local event_name="tp:tptest"
diag "Test tracefile size limit : $size_limit bytes"
create_lttng_session_ok $session_name $trace_path
enable_lttng_channel_size_limit \
$session_name $channel_name $size_limit
enable_ust_lttng_event_per_channel \
$session_name $event_name $channel_name
start_lttng_tracing_ok $session_name
$TESTAPP_BIN -i $NR_ITER >/dev/null 2>&1
stop_lttng_tracing_ok $session_name
destroy_lttng_session_ok $session_name
# Validate file size, each one shall be no larger than the
# specified size limit
check_file_size $trace_path "${channel_name}_*" $size_limit
# Validate tracing data, we should at least have some events
validate_trace_path_ust_pid "$trace_path" "" "gen-ust-events"
validate_trace $event_name $trace_path
rm -rf $trace_path
}
function test_tracefile_size_limit_pagesize ()
{
# Set a size limit lower than the page_size
local size_limit="$(($PAGE_SIZE-2))"
local trace_path=$(mktemp -d -t "tmp.${FUNCNAME[0]}_trace_path.XXXXXX")
local session_name=$(randstring 16 0)
local channel_name="channel"
local event_name="tp:tptest"
diag "Test tracefile size limit lower than PAGE_SIZE : $size_limit bytes"
create_lttng_session_ok $session_name $trace_path
enable_lttng_channel_size_limit \
$session_name $channel_name $size_limit
enable_ust_lttng_event_per_channel \
$session_name $event_name $channel_name
start_lttng_tracing_ok $session_name
$TESTAPP_BIN -i $NR_ITER >/dev/null 2>&1
stop_lttng_tracing_ok $session_name
destroy_lttng_session_ok $session_name
# Validate file size, expect file size to be equal to the page size
check_file_size $trace_path "${channel_name}_*" $PAGE_SIZE
# Validate tracing data, we should at least have some events
validate_trace_path_ust_pid "$trace_path" "" "gen-ust-events"
validate_trace $event_name $trace_path
rm -rf $trace_path
}
plan_tests $NUM_TESTS
print_test_banner "$TEST_DESC"
bail_out_if_no_babeltrace
start_lttng_sessiond
# Test with multiples of PAGE_SIZE
LIMITS=("$(($PAGE_SIZE))"
"$(($PAGE_SIZE*2))"
"$(($PAGE_SIZE*4))"
"$(($PAGE_SIZE*8))"
"$(($PAGE_SIZE*16))"
"$(($PAGE_SIZE*32))")
for limit in ${LIMITS[@]};
do
test_tracefile_size_limit $limit
done
# Test with a value that is not a multiple of PAGE_SIZE
test_tracefile_size_limit "$(($PAGE_SIZE+1024))"
# Test that a value lower than the PAGE_SIZE is rounded to it
test_tracefile_size_limit_pagesize
stop_lttng_sessiond
|
