From dfa078d7490631e84a50749a4601ad0c46dddbba Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bvanassche@acm.org>
Date: Sun, 6 Jan 2013 14:55:29 +0000
Subject: [PATCH] ib_srpt: Update README (merge r4502 from trunk)

git-svn-id: http://svn.code.sf.net/p/scst/svn/branches/2.2.x@4717 d57e44dd-8a1f-0410-8b47-8ef2f437770f
---
 srpt/README | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/srpt/README b/srpt/README
index feae4ad92..a3a430d2d 100644
--- a/srpt/README
+++ b/srpt/README
@@ -351,6 +351,10 @@ interrupt numbers in /proc/interrupts and by writing proper bitmasks into
 Performance Notes - Initiator Side
 ----------------------------------
 
+* For multithreaded workloads using small block sizes changing rq_affinity
+  into 2 improves IOPS significantly (Linux kernel 3.1 and later; see also
+  commit 5757a6d76cdf6dda2a492c09b985c015e86779b1).
+
 * For latency sensitive applications, using the noop scheduler at the initiator
   side can give significantly better results than with other schedulers.