Report peak memory used upon exiting

git-svn-id: https://svn.pjsip.org/repos/pjproject/trunk@595 74dad513-b988-da41-8d7b-12977e46ad98
diff --git a/pjsip-apps/src/samples/pjsip-perf.c b/pjsip-apps/src/samples/pjsip-perf.c
index c1a6b38..85ab15e 100644
--- a/pjsip-apps/src/samples/pjsip-perf.c
+++ b/pjsip-apps/src/samples/pjsip-perf.c
@@ -755,8 +755,8 @@
     if (app.pool) {
 	pj_pool_release(app.pool);
 	app.pool = NULL;
-	PJ_LOG(3,(THIS_FILE, "caching pool free capacity: %uMB",
-			     app.cp.capacity / 1000000));
+	PJ_LOG(3,(THIS_FILE, "Peak memory size: %uMB",
+			     app.cp.peak_used_size / 1000000));
 	pj_caching_pool_destroy(&app.cp);
     }
 }