[PATCH sched-devel 6/7] cpuisol: Minor updates to the Kconfig options

From: Max Krasnyansky
Date: Fri Feb 22 2008 - 16:11:44 EST


Fixed a couple of typos, long lines and referred to the documentation file.

Signed-off-by: Max Krasnyansky <maxk@xxxxxxxxxxxx>
---
kernel/Kconfig.cpuisol | 31 +++++++++++++++++--------------
1 files changed, 17 insertions(+), 14 deletions(-)

diff --git a/kernel/Kconfig.cpuisol b/kernel/Kconfig.cpuisol
index 81f1972..e681b02 100644
--- a/kernel/Kconfig.cpuisol
+++ b/kernel/Kconfig.cpuisol
@@ -2,23 +2,26 @@ config CPUISOL
depends on SMP
bool "CPU isolation"
help
- This option enables support for CPU isolation.
- If enabled the kernel will try to avoid kernel activity on the isolated CPUs.
- By default user-space threads are not scheduled on the isolated CPUs unless
- they explicitly request it (via sched_ and pthread_ affinity calls). Isolated
- CPUs are not subject to the scheduler load-balancing algorithms.
-
- CPUs can be marked as isolated using 'isolcpus=' command line option or by
- writing '1' into /sys/devices/system/cpu/cpuN/isolated.
-
- This feature is useful for hard realtime and high performance applications.
+ This option enables support for CPU isolation. If enabled the
+ kernel will try to avoid kernel activity on the isolated CPUs.
+ By default user-space threads are not scheduled on the isolated
+ CPUs unless they explicitly request it via sched_setaffinity()
+ and pthread_setaffinity_np() calls. Isolated CPUs are not
+ subject to the scheduler load-balancing algorithms.
+
+ This feature is useful for hard realtime and high performance
+ applications.
+ See Documentation/cpu-isolation.txt for more details.
+
If unsure say 'N'.

config CPUISOL_WORKQUEUE
bool "Do not schedule workqueues on the isolated CPUs (EXPERIMENTAL)"
depends on CPUISOL && EXPERIMENTAL
help
- In this option is enabled kernel will not schedule workqueues on the
- isolated CPUs.
- Please note that at this point this feature is experimental. It brakes
- certain things like OProfile that heavily rely on per cpu workqueues.
+ If this option is enabled kernel will not schedule workqueues on
+ the isolated CPUs. Please note that at this point this feature
+ is experimental. It breaks certain things like OProfile that
+ heavily rely on per cpu workqueues.
+
+ Say 'Y' to enable workqueue isolation. If unsure say 'N'.
--
1.5.4.1

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