Bug#16068056 INNODB CALLS BUF_VALIDATE() TOO OFTEN WITH UNIV_DEBUG

Approved by: Marko Makela (patch in bug report)

Reduce the number of debug buf_validate() calls

storage/innobase/buf/buf0buf.c

@@ -1834,7 +1834,7 @@ lookup:
 		buf_read_page(space, zip_size, offset);
 
 #if defined UNIV_DEBUG || defined UNIV_BUF_DEBUG
-		ut_a(++buf_dbg_counter % 37 || buf_validate());
+		ut_a(++buf_dbg_counter % 5771 || buf_validate());
 #endif /* UNIV_DEBUG || UNIV_BUF_DEBUG */
 	}
 
@@ -2347,7 +2347,7 @@ loop2:
 		}
 
 #if defined UNIV_DEBUG || defined UNIV_BUF_DEBUG
-		ut_a(++buf_dbg_counter % 37 || buf_validate());
+		ut_a(++buf_dbg_counter % 5771 || buf_validate());
 #endif /* UNIV_DEBUG || UNIV_BUF_DEBUG */
 		goto loop;
 	}
@@ -3432,7 +3432,7 @@ buf_page_create(
 	memset(frame + FIL_PAGE_FILE_FLUSH_LSN, 0, 8);
 
 #if defined UNIV_DEBUG || defined UNIV_BUF_DEBUG
-	ut_a(++buf_dbg_counter % 357 || buf_validate());
+	ut_a(++buf_dbg_counter % 5771 || buf_validate());
 #endif /* UNIV_DEBUG || UNIV_BUF_DEBUG */
 #ifdef UNIV_IBUF_COUNT_DEBUG
 	ut_a(ibuf_count_get(buf_block_get_space(block),