From 2a511e91a8631589c62ba95a3974cc5ae4f7530f Mon Sep 17 00:00:00 2001
From: hunt <hunt>
Date: Tue, 28 Jun 2005 21:20:10 +0000
Subject: *** empty log message ***

---
 runtime/probes/bench/README | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)
 create mode 100644 runtime/probes/bench/README

(limited to 'runtime/probes/bench')

diff --git a/runtime/probes/bench/README b/runtime/probes/bench/README
new file mode 100644
index 00000000..5eaded78
--- /dev/null
+++ b/runtime/probes/bench/README
@@ -0,0 +1,22 @@
+This is a benchmark program for the SystemTap Runtime.
+
+It works by instrumenting sys_read() and sys_write().  It calls each a million
+times and times that.  Then it puts an empty kprobe on one and jprobe on the 
+other and times that.  Subtracting the difference between the two runs gives 
+the kprobe and jprobe overhead.  The process is then repeated for more 
+complicated probes.
+
+Any system has some background activity going on that will generate sys_read 
+and sys_write calls. However, unless some major activity is going on, it 
+should be statistically insignificant.
+
+To Start:
+
+1. Build the test program.
+> gcc -O3 -o time time.c
+
+2. Run the benchmarks
+> ./run_bench
+
+
+
-- 
cgit