[jboss-cvs] JBoss Messaging SVN: r7348 - trunk/native.

[jboss-cvs-commits at lists.jboss.org]

Author: clebert.suconic at jboss.com
Date: 2009-06-15 13:06:23 -0400 (Mon, 15 Jun 2009)
New Revision: 7348

Modified:
   trunk/native/README
Log:
Changes on README

Modified: trunk/native/README
===================================================================
--- trunk/native/README	2009-06-15 16:11:50 UTC (rev 7347)
+++ trunk/native/README	2009-06-15 17:06:23 UTC (rev 7348)
@@ -51,9 +51,30 @@
 If you interrupt this script, you will see a file (/tmp/foo.dat) created on your disk, which is used to measure the performance.
 
 
+DISKTEST
+
+There is also an executable that performs direct libaio write emulating the same behaviour you should see on the Journal.
+
+To verify what is your maximum disk throughput execute disktest
+
+Usage: disktest<Platform> <directory> <number-of-files>
+
+example:
+chmod +x disktest
+./disktest32 /tmp 20A
+
+
+At the end of the execution you will see something like:
+
+Total time on write files = 198, Bytes/millisecond = 105916 
+
+disktest is also compiled by our build scripts. disktest.cpp is also a sample of how to make calls into libaio.
+
+
+
 DOCUMENTATION
 
-The User Manual, chapter 38 (Libaio Native Libraries) will provide more details about this
+The User Manual, chapter 38 (Libaio Native Libraries) will provide more details about our native libraries on libaio.