Commit 160c6bb1 authored by Nick Piggin's avatar Nick Piggin Committed by Linus Torvalds

[PATCH] document isolcpus= boot option

Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent 43d5d301
......@@ -533,6 +533,18 @@ running once the system is up.
isapnp= [ISAPNP]
Format: <RDP>, <reset>, <pci_scan>, <verbosity>
isolcpus= [KNL,SMP] Isolate CPUs from the general scheduler.
Format: <cpu number>, ..., <cpu number>
This option can be used to specify one or more CPUs
to isolate from the general SMP balancing and scheduling
algorithms. The only way to move a process onto or off
an "isolated" CPU is via the CPU affinity syscalls.
This option is the preferred way to isolate CPUs. The
alternative - manually setting the CPU mask of all tasks
in the system can cause problems and suboptimal load
balancer performance.
isp16= [HW,CD]
Format: <io>,<irq>,<dma>,<setup>
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment