Report resource usage at the end of recovery
Reporting this has been rather useful in some recent recovery speedup
work.  It also seems like something that will be useful to the average DBA
too.
Author: David Rowley
Discussion:
#include "utils/memutils.h"
#include "utils/ps_status.h"
#include "utils/relmapper.h"
+#include "utils/pg_rusage.h"
#include "utils/snapmgr.h"
#include "utils/timestamp.h"
@@ -7169,6 +7170,9 @@ StartupXLOG(void)
{
ErrorContextCallback errcallback;
TimestampTz xtime;
+ PGRUsage ru0;
+
+ pg_rusage_init(&ru0);
InRedo = true;
@@ -7435,8 +7439,9 @@ StartupXLOG(void)
}
ereport(LOG,
- (errmsg("redo done at %X/%X",
- (uint32) (ReadRecPtr >> 32), (uint32) ReadRecPtr)));
+ (errmsg("redo done at %X/%X system usage: %s",
+ (uint32) (ReadRecPtr >> 32), (uint32) ReadRecPtr,
+ pg_rusage_show(&ru0))));
xtime = GetLatestXTime();
if (xtime)
ereport(LOG,
