vendor/dtracetoolkit/dtracetoolkit-20120512vendor/dtracetoolkit

1 files changed, 53 insertions, 0 deletions

diff --git a/Examples/runocc_example.txt b/Examples/runocc_example.txt
new file mode 100644
index 000000000000..53dcb5f96671
--- /dev/null
+++ b/Examples/runocc_example.txt
@@ -0,0 +1,53 @@
+The following are demonstrations of the runocc.d script.
+
+
+
+Here we run it on a single CPU server that is fairly busy,
+
+   # ./runocc.d
+   
+        CPU  %runocc
+          0       86
+   
+        CPU  %runocc
+          0       85
+   
+        CPU  %runocc
+          0       82
+   ^C
+
+The run queue occupancy is around 85%, meaning most of the time there
+are runnable threads queued waiting for CPU.
+
+
+
+This script is more interesting on a multi-CPU server,
+
+   # ./runocc.d
+   
+        CPU  %runocc
+          1       16
+          3       27
+          0       38
+          2       75
+   
+        CPU  %runocc
+          0       25
+          2       41
+          3       42
+          1       50
+   
+        CPU  %runocc
+          3        1
+          0       17
+          2       26
+          1       27
+   
+        CPU  %runocc
+          3        2
+          2        5
+          0       24
+          1       25
+   ^C
+
+Here there was some degree of saturation, especially on CPU 2 to start with.