--- Documentation/sysctl/kernel.txt

+++ Documentation/sysctl/kernel.txt

@@ -29,6 +29,7 @@ show up in /proc/sys/kernel:

- domainname

- hostname

- hotplug

+- iso_cpu

- java-appletviewer [ binfmt_java, obsolete ]

- java-interpreter [ binfmt_java, obsolete ]

- kstack_depth_to_print [ X86 only ]

@@ -51,6 +52,7 @@ show up in /proc/sys/kernel:

- randomize_va_space

- real-root-dev ==> Documentation/initrd.txt

- reboot-cmd [ SPARC only ]

+- rr_interval

- rtsig-max

- rtsig-nr

- sem

@@ -209,6 +211,16 @@ Default value is "/sbin/hotplug".

==============================================================

+iso_cpu: (BFS CPU scheduler only).

+

+This sets the percentage cpu that the unprivileged SCHED_ISO tasks can

+run effectively at realtime priority, averaged over a rolling five

+seconds over the -whole- system, meaning all cpus.

+

+Set to 70 (percent) by default.

+

+==============================================================

+

l2cr: (PPC only)

This flag controls the L2 cache of G3 processor boards. If

@@ -383,6 +395,20 @@ rebooting. ???

==============================================================

+rr_interval: (BFS CPU scheduler only)

+

+This is the smallest duration that any cpu process scheduling unit

+will run for. Increasing this value can increase throughput of cpu

+bound tasks substantially but at the expense of increased latencies

+overall. Conversely decreasing it will decrease average and maximum

+latencies but at the expense of throughput. This value is in

+milliseconds and the default value chosen depends on the number of

+cpus available at scheduler initialisation with a minimum of 6.

+

+Valid values are from 1-5000.

+

+==============================================================

+

rtsig-max & rtsig-nr:

The file rtsig-max can be used to tune the maximum number