fsync test files

Prevent creation of 16GB files during fsync testing; only create 16MB
files;  backpatch to 8.4.X.

diff --git a/src/tools/fsync/test_fsync.c b/src/tools/fsync/test_fsync.c
index dcc0a4488037b01564468b4db9ad5afd289c457a..744775bf7363feb0f8bbaeeb3668f976d269fdd1 100644 (file)
--- a/src/tools/fsync/test_fsync.c
+++ b/src/tools/fsync/test_fsync.c
@@ -1,5 +1,5 @@
 /*
- * $PostgreSQL: pgsql/src/tools/fsync/test_fsync.c,v 1.23.2.1 2009/08/10 18:19:11 momjian Exp $
+ * $PostgreSQL: pgsql/src/tools/fsync/test_fsync.c,v 1.23.2.2 2009/09/21 20:21:02 momjian Exp $
  *
  *
  *     test_fsync.c
@@ -149,8 +149,12 @@ main(int argc, char *argv[])
                die("Cannot open output file.");
        gettimeofday(&start_t, NULL);
        for (i = 0; i < loops; i++)
+       {
                if (write(tmpfile, buf, WRITE_SIZE) != WRITE_SIZE)
                        die("write failed");
+               if (lseek(tmpfile, 0, SEEK_SET) == -1)
+                       die("seek failed");
+       }
        gettimeofday(&elapse_t, NULL);
        close(tmpfile);
        printf("\tone 16k o_sync write   ");
@@ -167,6 +171,8 @@ main(int argc, char *argv[])
                        die("write failed");
                if (write(tmpfile, buf, WRITE_SIZE / 2) != WRITE_SIZE / 2)
                        die("write failed");
+               if (lseek(tmpfile, 0, SEEK_SET) == -1)
+                       die("seek failed");
        }
        gettimeofday(&elapse_t, NULL);
        close(tmpfile);
@@ -188,8 +194,12 @@ main(int argc, char *argv[])
                die("Cannot open output file.");
        gettimeofday(&start_t, NULL);
        for (i = 0; i < loops; i++)
+       {
                if (write(tmpfile, buf, WRITE_SIZE / 2) != WRITE_SIZE / 2)
                        die("write failed");
+               if (lseek(tmpfile, 0, SEEK_SET) == -1)
+                       die("seek failed");
+       }
        gettimeofday(&elapse_t, NULL);
        close(tmpfile);
        printf("\topen o_dsync, write    ");
@@ -205,8 +215,12 @@ main(int argc, char *argv[])
                die("Cannot open output file.");
        gettimeofday(&start_t, NULL);
        for (i = 0; i < loops; i++)
+       {
                if (write(tmpfile, buf, WRITE_SIZE / 2) != WRITE_SIZE / 2)
                        die("write failed");
+               if (lseek(tmpfile, 0, SEEK_SET) == -1)
+                       die("seek failed");
+       }
        gettimeofday(&elapse_t, NULL);
        close(tmpfile);
        printf("\topen o_sync, write     ");
@@ -226,6 +240,8 @@ main(int argc, char *argv[])
                if (write(tmpfile, buf, WRITE_SIZE / 2) != WRITE_SIZE / 2)
                        die("write failed");
                fdatasync(tmpfile);
+               if (lseek(tmpfile, 0, SEEK_SET) == -1)
+                       die("seek failed");
        }
        gettimeofday(&elapse_t, NULL);
        close(tmpfile);
@@ -246,6 +262,8 @@ main(int argc, char *argv[])
                        die("write failed");
                if (fsync(tmpfile) != 0)
                        die("fsync failed");
+               if (lseek(tmpfile, 0, SEEK_SET) == -1)
+                       die("seek failed");
        }
        gettimeofday(&elapse_t, NULL);
        close(tmpfile);
@@ -269,6 +287,8 @@ main(int argc, char *argv[])
                        die("write failed");
                if (write(tmpfile, buf, WRITE_SIZE / 2) != WRITE_SIZE / 2)
                        die("write failed");
+               if (lseek(tmpfile, 0, SEEK_SET) == -1)
+                       die("seek failed");
        }
        gettimeofday(&elapse_t, NULL);
        close(tmpfile);
@@ -290,6 +310,8 @@ main(int argc, char *argv[])
                        die("write failed");
                if (write(tmpfile, buf, WRITE_SIZE / 2) != WRITE_SIZE / 2)
                        die("write failed");
+               if (lseek(tmpfile, 0, SEEK_SET) == -1)
+                       die("seek failed");
        }
        gettimeofday(&elapse_t, NULL);
        close(tmpfile);
@@ -310,6 +332,8 @@ main(int argc, char *argv[])
                if (write(tmpfile, buf, WRITE_SIZE / 2) != WRITE_SIZE / 2)
                        die("write failed");
                fdatasync(tmpfile);
+               if (lseek(tmpfile, 0, SEEK_SET) == -1)
+                       die("seek failed");
        }
        gettimeofday(&elapse_t, NULL);
        close(tmpfile);
@@ -332,6 +356,8 @@ main(int argc, char *argv[])
                        die("write failed");
                if (fsync(tmpfile) != 0)
                        die("fsync failed");
+               if (lseek(tmpfile, 0, SEEK_SET) == -1)
+                       die("seek failed");
        }
        gettimeofday(&elapse_t, NULL);
        close(tmpfile);