From 60e19526de2a02efa8f66715629b25579f9f3a77 Mon Sep 17 00:00:00 2001
From: "sd386@font.cl.cam.ac.uk" <sd386@font.cl.cam.ac.uk>
Date: Fri, 1 Apr 2005 13:01:31 +0000
Subject: [PATCH] bitkeeper revision 1.1159.170.109
 (424d462b3t7TNRulCLgZcZNC5I8oew)

Added a very brief usage guide on the sedf scheduler.
---
 .rootkeys                               |  1 +
 docs/misc/sedf_scheduler_mini-HOWTO.txt | 44 +++++++++++++++++++++++++
 2 files changed, 45 insertions(+)
 create mode 100644 docs/misc/sedf_scheduler_mini-HOWTO.txt

diff --git a/.rootkeys b/.rootkeys
index be0623acf5..6231a0c75c 100644
--- a/.rootkeys
+++ b/.rootkeys
@@ -17,6 +17,7 @@
 418a3248xjIqmNKo0v_XQSfAvlBGFw docs/html.sty
 4022a73cgxX1ryj1HgS-IwwB6NUi2A docs/misc/XenDebugger-HOWTO
 412f4bd9sm5mCQ8BkrgKcAKZGadq7Q docs/misc/blkif-drivers-explained.txt
+424d462b5GuApQ_NyMsRFt9LbrsWow docs/misc/sedf_scheduler_mini-HOWTO.txt
 40d6ccbfKKBq8jE0ula4eHEzBiQuDA docs/misc/xen_config.html
 410a4c2bAO_m_l4RsiiPHnZ4ixHWbQ docs/misc/xend.tex
 3f9e7d564bWFB-Czjv1qdmE6o0GqNg docs/src/interface.tex
diff --git a/docs/misc/sedf_scheduler_mini-HOWTO.txt b/docs/misc/sedf_scheduler_mini-HOWTO.txt
new file mode 100644
index 0000000000..ad3cc62e1f
--- /dev/null
+++ b/docs/misc/sedf_scheduler_mini-HOWTO.txt
@@ -0,0 +1,44 @@
+sEDF scheduler
+--------------
+Author:
+   Stephan.Diestelhorst@{cl.cam.ac.uk, inf.tu-dresden.de}
+   
+Overview:
+  This scheduler provides weighted CPU sharing in an intuitive way and
+  uses realtime-algorithms to ensure time guarantees.
+
+Usage:
+   -add "sched=sedf" on Xen's boot command-line
+   -create domains as usual
+   -use "xm sedf <dom-id> <period> <slice> <latency-hint> <extra> <weight>"
+    Where:
+      -period/slice are the normal EDF scheduling parameters in nanosecs
+      -latency-hint is the scaled period in case the domain is doing heavy I/O
+         (unused by the currently compiled version)
+      -extra is a flag (0/1), which controls whether the domain can run in
+       extra-time
+      -weight is mutually exclusive with period/slice and specifies another
+       way of setting a domains cpu slice
+
+Examples:
+ normal EDF (20ms/5ms):
+  xm sedf <dom-id> 20000000 5000000 0 0 0
+  
+ best-effort domains (i.e. non-realtime):
+  xm sedf <dom-id> 20000000 0 0 1 0
+ 
+ normal EDF (20ms/5ms) + share of extra-time:
+  xm sedf <dom-id> 20000000 5000000 0 1 0
+  
+ 4 domains with weights 2:3:4:2
+  xm sedf <d1> 0 0 0 0 2
+  xm sedf <d2> 0 0 0 0 3
+  xm sedf <d3> 0 0 0 0 4
+  xm sedf <d4> 0 0 0 0 2
+  
+ 1 fully-specified (10ms/3ms) domain, 3 other domains share
+ available rest in 2:7:3 ratio:
+  xm sedf <d1> 10000000 3000000 0 0 0
+  xm sedf <d2> 0 0 0 0 2
+  xm sedf <d3> 0 0 0 0 7
+  xm sedf <d4> 0 0 0 0 3
\ No newline at end of file
-- 
2.30.2