From e15027155d3d880abde83124e252b3dd10a9aae4 Mon Sep 17 00:00:00 2001
From: Andrew Tridgell <tridge@samba.org>
Date: Tue, 26 May 2009 09:24:37 +1000
Subject: added some more speed tests to tdbtool

This adds 3 simple speed tests to tdbtool, for transaction store,
store and fetch.

On my laptop this shows transactions costing about 10ms
---
 lib/tdb/tools/tdbtool.c | 65 ++++++++++++++++++++++++++++++++++++++++++++-----
 1 file changed, 59 insertions(+), 6 deletions(-)

(limited to 'lib')

diff --git a/lib/tdb/tools/tdbtool.c b/lib/tdb/tools/tdbtool.c
index b4ec095a39..3220e47b13 100644
--- a/lib/tdb/tools/tdbtool.c
+++ b/lib/tdb/tools/tdbtool.c
@@ -392,15 +392,68 @@ static void speed_tdb(const char *tlimit)
 {
 	unsigned timelimit = tlimit?atoi(tlimit):0;
 	double t;
-	int ops=0;
-	if (timelimit == 0) timelimit = 10;
+	int ops;
+	if (timelimit == 0) timelimit = 5;
+
+	ops = 0;
+	printf("Testing store speed for %u seconds\n", timelimit);
+	_start_timer();
+	do {
+		long int r = random();
+		TDB_DATA key, dbuf;
+		key.dptr = "store test";
+		key.dsize = strlen(key.dptr);
+		dbuf.dptr = (unsigned char *)&r;
+		dbuf.dsize = sizeof(r);
+		tdb_store(tdb, key, dbuf, TDB_REPLACE);
+		t = _end_timer();
+		ops++;
+	} while (t < timelimit);
+	printf("%10.3f ops/sec\n", ops/t);
+
+	ops = 0;
+	printf("Testing fetch speed for %u seconds\n", timelimit);
+	_start_timer();
+	do {
+		long int r = random();
+		TDB_DATA key, dbuf;
+		key.dptr = "store test";
+		key.dsize = strlen(key.dptr);
+		dbuf.dptr = (unsigned char *)&r;
+		dbuf.dsize = sizeof(r);
+		tdb_fetch(tdb, key);
+		t = _end_timer();
+		ops++;
+	} while (t < timelimit);
+	printf("%10.3f ops/sec\n", ops/t);
+
+	ops = 0;
+	printf("Testing transaction speed for %u seconds\n", timelimit);
+	_start_timer();
+	do {
+		long int r = random();
+		TDB_DATA key, dbuf;
+		key.dptr = "transaction test";
+		key.dsize = strlen(key.dptr);
+		dbuf.dptr = (unsigned char *)&r;
+		dbuf.dsize = sizeof(r);
+		tdb_transaction_start(tdb);
+		tdb_store(tdb, key, dbuf, TDB_REPLACE);
+		tdb_transaction_commit(tdb);
+		t = _end_timer();
+		ops++;
+	} while (t < timelimit);
+	printf("%10.3f ops/sec\n", ops/t);
+
+	ops = 0;
 	printf("Testing traverse speed for %u seconds\n", timelimit);
 	_start_timer();
-	while ((t=_end_timer()) < timelimit) {
+	do {
 		tdb_traverse(tdb, traverse_fn, NULL);
-		printf("%10.3f ops/sec\r", (++ops)/t);
-	}
-	printf("\n");
+		t = _end_timer();
+		ops++;
+	} while (t < timelimit);
+	printf("%10.3f ops/sec\n", ops/t);
 }
 
 static void toggle_mmap(void)
-- 
cgit