Add version 2 of the iolog format
The old format had some short comings - notably not supporting > 1
file workloads. So add a new format that defines adding/open/close
of files. Fio will still load the older format iologs, but the new
ones wont work on older fio versions.
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
diff --git a/fio.c b/fio.c
index 6e0dae2..16e19c8 100644
--- a/fio.c
+++ b/fio.c
@@ -921,8 +921,6 @@
finish_log(td, td->ts.slat_log, "slat");
if (td->ts.clat_log)
finish_log(td, td->ts.clat_log, "clat");
- if (td->o.write_iolog_file)
- write_iolog_close(td);
if (td->o.exec_postrun) {
if (system(td->o.exec_postrun) < 0)
log_err("fio: postrun %s failed\n", td->o.exec_postrun);
@@ -937,6 +935,13 @@
close_files(td);
close_ioengine(td);
cleanup_io_u(td);
+
+ /*
+ * do this very late, it will log file closing as well
+ */
+ if (td->o.write_iolog_file)
+ write_iolog_close(td);
+
options_mem_free(td);
td_set_runstate(td, TD_EXITED);
return (void *) (unsigned long) td->error;