mirror/postgresql
2
0
Fork 0
mirror of https://git.postgresql.org/git/postgresql.git synced 2025-03-01 19:45:33 +08:00
Code Issues Packages Projects Releases Wiki Activity

Allocate 16mb file for testing.

Browse Source
This commit is contained in:
Bruce Momjian 2004-03-18 20:09:33 +00:00
parent 9e231bab65
commit 6b34711824
1 changed files with 5 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
src/tools/fsync/test_fsync.c
View File

@ -29,6 +29,8 @@
#endif
#endif
#define WAL_FILE_SIZE (16 * 1024 * 1024)
void die(char *str);
void print_elapse(struct timeval start_t, struct timeval elapse_t);
@ -40,7 +42,7 @@ main(int argc, char *argv[])
int tmpfile,
i,
loops=1000;
char *strout = (char *) malloc(65536);
char *strout = (char *) malloc(WAL_FILE_SIZE);
char *filename = FSYNC_FILENAME;
if (argc > 2 && strcmp(argv[1],"-f") == 0)
@ -53,12 +55,12 @@ main(int argc, char *argv[])
if (argc > 1)
loops = atoi(argv[1]);
for (i = 0; i < 65536; i++)
for (i = 0; i < WAL_FILE_SIZE; i++)
strout[i] = 'a';
if ((tmpfile = open(FSYNC_FILENAME, O_RDWR | O_CREAT, S_IRUSR | S_IWUSR)) == -1)
die("can't open /var/tmp/test_fsync.out");
write(tmpfile, strout, 65536);
write(tmpfile, strout, WAL_FILE_SIZE);
fsync(tmpfile); /* fsync so later fsync's don't have to do
* it */
close(tmpfile);