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Replace dd if=/dev/urandom with junk data generator (#1786)

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This reduces test run time for a single flag from 73 to 60 seconds.
This commit is contained in:
Andrew Gaul 2021-10-28 22:54:25 +09:00 committed by GitHub
parent 473da56abf
commit 86317dd185
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GPG Key ID: 4AEE18F83AFDEB23
4 changed files with 62 additions and 14 deletions
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2
.gitignore vendored
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@ -77,7 +77,9 @@ src/test_curl_util
src/test_page_list
src/test_string_util
test/chaos-http-proxy-*
test/junk_data
test/s3proxy-*
test/write_multiblock
#
# Local variables:

6
test/Makefile.am
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@ -30,7 +30,11 @@ EXTRA_DIST = \
testdir = test
noinst_PROGRAMS = write_multiblock
noinst_PROGRAMS = \
junk_data \
write_multiblock
junk_data_SOURCES = junk_data.c
write_multiblock_SOURCES = write_multiblock.cc
#

26
test/integration-test-main.sh
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@ -144,8 +144,8 @@ function test_mv_to_exist_file {
BIG_MV_FILE_BLOCK_SIZE=$((BIG_FILE_BLOCK_SIZE + 1))
dd if=/dev/urandom of="${BIG_FILE}" bs=${BIG_FILE_BLOCK_SIZE} count=${BIG_FILE_COUNT}
dd if=/dev/urandom of="${BIG_FILE}-mv" bs=${BIG_MV_FILE_BLOCK_SIZE} count=${BIG_FILE_COUNT}
../../junk_data $(($BIG_FILE_BLOCK_SIZE * $BIG_FILE_COUNT)) > "${BIG_FILE}"
../../junk_data $(($BIG_FILE_BLOCK_SIZE * $BIG_FILE_COUNT)) > "${BIG_FILE}-mv"
mv ${BIG_FILE} ${BIG_FILE}-mv
@ -446,7 +446,7 @@ function test_update_metadata_external_large_object() {
TEST_SETXATTR_FILE="${TEST_TEXT_FILE}_xattr.${TEST_FILE_EXT}"
TEST_RMXATTR_FILE="${TEST_TEXT_FILE}_xattr.${TEST_FILE_EXT}"
dd if=/dev/urandom of="${TEMP_DIR}/${BIG_FILE}" bs=$BIG_FILE_BLOCK_SIZE count=$BIG_FILE_COUNT
../../junk_data $(($BIG_FILE_BLOCK_SIZE * $BIG_FILE_COUNT)) > "${TEMP_DIR}/${BIG_FILE}"
#
# chmod
@ -517,7 +517,7 @@ function test_rename_before_close {
function test_multipart_upload {
describe "Testing multi-part upload ..."
dd if=/dev/urandom of="${TEMP_DIR}/${BIG_FILE}" bs=$BIG_FILE_BLOCK_SIZE count=$BIG_FILE_COUNT
../../junk_data $(($BIG_FILE_BLOCK_SIZE * $BIG_FILE_COUNT)) > "${TEMP_DIR}/${BIG_FILE}"
dd if="${TEMP_DIR}/${BIG_FILE}" of="${BIG_FILE}" bs=$BIG_FILE_BLOCK_SIZE count=$BIG_FILE_COUNT
# Verify contents of file
@ -534,7 +534,7 @@ function test_multipart_upload {
function test_multipart_copy {
describe "Testing multi-part copy ..."
dd if=/dev/urandom of="${TEMP_DIR}/${BIG_FILE}" bs=$BIG_FILE_BLOCK_SIZE count=$BIG_FILE_COUNT
../../junk_data $(($BIG_FILE_BLOCK_SIZE * $BIG_FILE_COUNT)) > "${TEMP_DIR}/${BIG_FILE}"
dd if="${TEMP_DIR}/${BIG_FILE}" of="${BIG_FILE}" bs=$BIG_FILE_BLOCK_SIZE count=$BIG_FILE_COUNT
mv "${BIG_FILE}" "${BIG_FILE}-copy"
@ -558,7 +558,7 @@ function test_multipart_mix {
if [ `uname` = "Darwin" ]; then
cat /dev/null > $BIG_FILE
fi
dd if=/dev/urandom of="${TEMP_DIR}/${BIG_FILE}" bs=$BIG_FILE_BLOCK_SIZE count=$BIG_FILE_COUNT
../../junk_data $(($BIG_FILE_BLOCK_SIZE * $BIG_FILE_COUNT)) > "${TEMP_DIR}/${BIG_FILE}"
dd if="${TEMP_DIR}/${BIG_FILE}" of="${BIG_FILE}" bs=$BIG_FILE_BLOCK_SIZE count=$BIG_FILE_COUNT
# (1) Edit the middle of an existing file
@ -638,7 +638,7 @@ function test_multipart_mix {
function test_utimens_during_multipart {
describe "Testing utimens calling during multipart copy ..."
dd if=/dev/urandom of="${TEMP_DIR}/${BIG_FILE}" bs=$BIG_FILE_BLOCK_SIZE count=$BIG_FILE_COUNT
../../junk_data $(($BIG_FILE_BLOCK_SIZE * $BIG_FILE_COUNT)) > "${TEMP_DIR}/${BIG_FILE}"
cp ${TEMP_DIR}/${BIG_FILE} ${BIG_FILE}
@ -1103,7 +1103,7 @@ function test_concurrent_directory_updates {
function test_concurrent_reads {
describe "Test concurrent reads from a file ..."
dd if=/dev/urandom of="${TEST_TEXT_FILE}" bs=$BIG_FILE_BLOCK_SIZE count=$BIG_FILE_COUNT
../../junk_data $(($BIG_FILE_BLOCK_SIZE * $BIG_FILE_COUNT)) > "${TEST_TEXT_FILE}"
for process in `seq 10`; do
dd if=${TEST_TEXT_FILE} of=/dev/null seek=$(($RANDOM % $BIG_FILE_LENGTH)) count=16 bs=1024 &
done
@ -1113,7 +1113,7 @@ function test_concurrent_reads {
function test_concurrent_writes {
describe "Test concurrent writes to a file ..."
dd if=/dev/urandom of="${TEST_TEXT_FILE}" bs=$BIG_FILE_BLOCK_SIZE count=$BIG_FILE_COUNT
../../junk_data $(($BIG_FILE_BLOCK_SIZE * $BIG_FILE_COUNT)) > "${TEST_TEXT_FILE}"
for process in `seq 10`; do
dd if=/dev/zero of=${TEST_TEXT_FILE} seek=$(($RANDOM % $BIG_FILE_LENGTH)) count=16 bs=1024 conv=notrunc &
done
@ -1152,7 +1152,7 @@ function test_clean_up_cache() {
mkdir -p $dir
for x in $(seq $count); do
dd if=/dev/urandom of=$dir/file-$x bs=10485760 count=1
../../junk_data 10485760 > $dir/file-$x
done
file_cnt=$(ls $dir | wc -l)
@ -1227,7 +1227,7 @@ function test_truncate_cache() {
function test_cache_file_stat() {
describe "Test cache file stat ..."
dd if=/dev/urandom of="${BIG_FILE}" bs=$BIG_FILE_BLOCK_SIZE count=$BIG_FILE_COUNT
../../junk_data $(($BIG_FILE_BLOCK_SIZE * $BIG_FILE_COUNT)) > "${BIG_FILE}"
#
# The first argument of the script is "testrun-<random>" the directory name.
@ -1383,7 +1383,7 @@ function test_mix_upload_entities() {
#
# Make test file
#
dd if=/dev/urandom of="${BIG_FILE}" bs=$BIG_FILE_BLOCK_SIZE count=$BIG_FILE_COUNT
../../junk_data $(($BIG_FILE_BLOCK_SIZE * $BIG_FILE_COUNT)) > "${BIG_FILE}"
#
# If the cache option is enabled, delete the cache of uploaded files.
@ -1420,7 +1420,7 @@ function test_ensurespace_move_file() {
# Make test file which is not under mountpoint
#
mkdir -p ${CACHE_DIR}/.s3fs_test_tmpdir
dd if=/dev/urandom of="${CACHE_DIR}/.s3fs_test_tmpdir/${BIG_FILE}" bs=$BIG_FILE_BLOCK_SIZE count=$BIG_FILE_COUNT
../../junk_data $(($BIG_FILE_BLOCK_SIZE * $BIG_FILE_COUNT)) > "${CACHE_DIR}/.s3fs_test_tmpdir/${BIG_FILE}"
#
# Backup file stat

42
test/junk_data.c Normal file
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@ -0,0 +1,42 @@
/*
* s3fs - FUSE-based file system backed by Amazon S3
*
* Copyright(C) 2021 Andrew Gaul <andrew@gaul.org>
*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
// Generate junk data at high speed. An alternative to dd if=/dev/urandom.
#include <stdio.h>
#include <stdlib.h>
int main(int argc, char *argv[])
{
if (argc != 2) {
return 1;
}
long long count = strtoull(argv[1], NULL, 10);
char buf[128 * 1024];
long long i;
for (i = 0; i < count; i += sizeof(buf)) {
long long j;
for (j = 0; j < sizeof(buf) / sizeof(i); ++j) {
*((long long *)buf + j) = i / sizeof(i) + j;
}
fwrite(buf, 1, sizeof(buf) > count - i ? count - i : sizeof(buf), stdout);
}
return 0;
}