From 83dd1a8e273f5a30a94fd6438fe0567c5fd1aee7 Mon Sep 17 00:00:00 2001
From: Mark Wielaard <mjw@redhat.com>
Date: Wed, 25 Mar 2009 13:34:04 +0100
Subject: NEWS: Add description of probe process().insn and
 process().insn.block.

---
 NEWS | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/NEWS b/NEWS
index c169c5e2..795d73c1 100644
--- a/NEWS
+++ b/NEWS
@@ -1,5 +1,14 @@
 * What's new
 
+ - New probes process().insn and process().insn.block that allows
+   inspection of the process after each instruction or block of
+   instructions executed. So to count the total number of instructions
+   a process executes during a run do something like:
+     $ stap -e 'global steps; probe process("/bin/ls").insn {steps++} 
+                probe end {printf("Total instructions: %d\n", steps);}' \
+            -c /bin/ls
+   This feature can slow down execution of a process somewhat.
+
 - Systemtap probes and function man pages extracted from the tapsets
   are now available in a separate man section 3stap.
   To look at the page for probe vm.pagefault:
-- 
cgit