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pg_test_fsync: Update output format

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Apparently, computers are now a bit faster than when this was first
added, so we need to make room for a digit or two in the ops/sec format.

While we're at it, adjust some of the other output for a more consistent
line length.
pull/14/head
Peter Eisentraut 11 years ago
parent af2b8fd057
commit 83dc5908c2
1 changed files with 8 additions and 9 deletions
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
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  1. 17
      contrib/pg_test_fsync/pg_test_fsync.c

17
contrib/pg_test_fsync/pg_test_fsync.c
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@ -23,9 +23,9 @@
#define XLOG_BLCKSZ_K (XLOG_BLCKSZ / 1024) #define XLOG_BLCKSZ_K (XLOG_BLCKSZ / 1024)
#define LABEL_FORMAT " %-32s" #define LABEL_FORMAT " %-30s"
#define NA_FORMAT "%20s" #define NA_FORMAT "%20s"
#define OPS_FORMAT "%11.3f ops/sec %6.0f usecs/op" #define OPS_FORMAT "%13.3f ops/sec %6.0f usecs/op"
#define USECS_SEC 1000000 #define USECS_SEC 1000000
/* These are macros to avoid timing the function call overhead. */ /* These are macros to avoid timing the function call overhead. */
@ -242,8 +242,7 @@ test_sync(int writes_per_op)
printf("\nCompare file sync methods using one %dkB write:\n", XLOG_BLCKSZ_K); printf("\nCompare file sync methods using one %dkB write:\n", XLOG_BLCKSZ_K);
else else
printf("\nCompare file sync methods using two %dkB writes:\n", XLOG_BLCKSZ_K); printf("\nCompare file sync methods using two %dkB writes:\n", XLOG_BLCKSZ_K);
printf("(in wal_sync_method preference order, except fdatasync\n"); printf("(in wal_sync_method preference order, except fdatasync is Linux's default)\n");
printf("is Linux's default)\n");
/* /*
* Test open_datasync if available * Test open_datasync if available
@ -398,8 +397,8 @@ static void
test_open_syncs(void) test_open_syncs(void)
{ {
printf("\nCompare open_sync with different write sizes:\n"); printf("\nCompare open_sync with different write sizes:\n");
printf("(This is designed to compare the cost of writing 16kB\n"); printf("(This is designed to compare the cost of writing 16kB in different write\n"
printf("in different write open_sync sizes.)\n"); "open_sync sizes.)\n");
test_open_sync(" 1 * 16kB open_sync write", 16); test_open_sync(" 1 * 16kB open_sync write", 16);
test_open_sync(" 2 * 8kB open_sync writes", 8); test_open_sync(" 2 * 8kB open_sync writes", 8);
@ -459,8 +458,8 @@ test_file_descriptor_sync(void)
* on platforms which support it. * on platforms which support it.
*/ */
printf("\nTest if fsync on non-write file descriptor is honored:\n"); printf("\nTest if fsync on non-write file descriptor is honored:\n");
printf("(If the times are similar, fsync() can sync data written\n"); printf("(If the times are similar, fsync() can sync data written on a different\n"
printf("on a different descriptor.)\n"); "descriptor.)\n");
/* /*
* first write, fsync and close, which is the normal behavior without * first write, fsync and close, which is the normal behavior without
@ -524,7 +523,7 @@ test_non_sync(void)
/* /*
* Test a simple write without fsync * Test a simple write without fsync
*/ */
printf("\nNon-Sync'ed %dkB writes:\n", XLOG_BLCKSZ_K); printf("\nNon-sync'ed %dkB writes:\n", XLOG_BLCKSZ_K);
printf(LABEL_FORMAT, "write"); printf(LABEL_FORMAT, "write");
fflush(stdout); fflush(stdout);

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