misc/xl-network-configuration XL Network Configuration
misc/distro_mapping Distro Directory Layouts
misc/dump-core-format Xen Core Dump Format
-misc/sedf_scheduler_mini-HOWTO sEDF Mini HOWTO
misc/vtd VT-d HOWTO
misc/vtpm Virtual TPM
misc/xen-error-handling Xen Error Handling
+++ /dev/null
-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 sched-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 sched-sedf <dom-id> 20000000 5000000 0 0 0
-
- best-effort domains (i.e. non-realtime):
- xm sched-sedf <dom-id> 20000000 0 0 1 0
-
- normal EDF (20ms/5ms) + share of extra-time:
- xm sched-sedf <dom-id> 20000000 5000000 0 1 0
-
- 4 domains with weights 2:3:4:2
- xm sched-sedf <d1> 0 0 0 0 2
- xm sched-sedf <d2> 0 0 0 0 3
- xm sched-sedf <d3> 0 0 0 0 4
- xm sched-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 sched-sedf <d1> 10000000 3000000 0 0 0
- xm sched-sedf <d2> 0 0 0 0 2
- xm sched-sedf <d3> 0 0 0 0 7
- xm sched-sedf <d4> 0 0 0 0 3