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Add getopt() support to test_fsync; also fix printf() format problem.

This commit is contained in:
Bruce Momjian 2011-01-17 09:35:51 -05:00
parent 48075095ac
commit 08af45f4ff
2 changed files with 50 additions and 19 deletions
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8
src/tools/fsync/README
View File

@ -3,7 +3,11 @@ test_fsync
This program tests fsync. The tests are described as part of the program output.
Usage: test_fsync [-f filename] [ops_per_test]
Usage: test_fsync [option...]
Options:
-f, --filename specify filename for test
-o, --ops-per-test operations per test
test_fsync is intended to give you a reasonable idea of what the fastest
fsync_method is on your specific system, as well as supplying diagnostic
@ -16,6 +20,6 @@ The output filename defaults to test_fsync.out in the current directory.
test_fsync should be run in the same filesystem as your transaction log
directory (pg_xlog).
Ops-per-test defaults to 2000. Increase this to get more accurate
Operations per test defaults to 2000. Increase this to get more accurate
measurements.

61
src/tools/fsync/test_fsync.c
View File

@ -8,6 +8,7 @@
#include "postgres.h"
#include "getopt_long.h"
#include "access/xlog_internal.h"
#include "access/xlog.h"
#include "access/xlogdefs.h"
@ -80,26 +81,52 @@ main(int argc, char *argv[])
void
handle_args(int argc, char *argv[])
{
if (argc > 1 && strcmp(argv[1], "-h") == 0)
static struct option long_options[] = {
{"filename", required_argument, NULL, 'f'},
{"ops-per-test", required_argument, NULL, 'o'},
{NULL, 0, NULL, 0}
};
int option; /* Command line option */
int optindex = 0; /* used by getopt_long */
if (argc > 1)
{
fprintf(stderr, "test_fsync [-f filename] [ops-per-test]\n");
exit(1);
}
/*
* arguments: ops_per_test and filename (optional)
*/
if (argc > 2 && strcmp(argv[1], "-f") == 0)
{
filename = argv[2];
argv += 2;
argc -= 2;
if (strcmp(argv[1], "--help") == 0 || strcmp(argv[1], "-h") == 0 ||
strcmp(argv[1], "-?") == 0)
{
fprintf(stderr, "test_fsync [-f filename] [ops-per-test]\n");
exit(0);
}
if (strcmp(argv[1], "--version") == 0 || strcmp(argv[1], "-V") == 0)
{
fprintf(stderr,"test_fsync " PG_VERSION "\n");
exit(0);
}
}
if (argc > 1)
ops_per_test = atoi(argv[1]);
while ((option = getopt_long(argc, argv, "f:o:",
long_options, &optindex)) != -1)
{
switch (option)
{
case 'f':
filename = strdup(optarg);
break;
printf("Ops-per-test = %d\n\n", ops_per_test);
case 'o':
ops_per_test = atoi(optarg);
break;
default:
fprintf(stderr,
"Try \"%s --help\" for more information.\n",
"test_fsync");
exit(1);
break;
}
}
printf("%d operations per test\n\n", ops_per_test);
}
void
@ -448,7 +475,7 @@ test_open_syncs(void)
}
if ((tmpfile = open(filename, O_RDWR | OPEN_SYNC_FLAG | PG_O_DIRECT, 0)) == -1)
printf(NA_FORMAT, "n/a**\n");
printf(NA_FORMAT, "o_direct", "n/a**\n");
else
{
printf(LABEL_FORMAT, "2 open_sync 8k writes");