diff options
Diffstat (limited to 'init')
| -rw-r--r-- | init/Kconfig | 15 |
1 files changed, 7 insertions, 8 deletions
diff --git a/init/Kconfig b/init/Kconfig index 6fdd6e339326..b63e7982c1c6 100644 --- a/init/Kconfig +++ b/init/Kconfig | |||
| @@ -582,14 +582,13 @@ config RCU_FAST_NO_HZ | |||
| 582 | depends on NO_HZ && SMP | 582 | depends on NO_HZ && SMP |
| 583 | default n | 583 | default n |
| 584 | help | 584 | help |
| 585 | This option causes RCU to attempt to accelerate grace periods | 585 | This option causes RCU to attempt to accelerate grace periods in |
| 586 | in order to allow CPUs to enter dynticks-idle state more | 586 | order to allow CPUs to enter dynticks-idle state more quickly. |
| 587 | quickly. On the other hand, this option increases the overhead | 587 | On the other hand, this option increases the overhead of the |
| 588 | of the dynticks-idle checking, particularly on systems with | 588 | dynticks-idle checking, thus degrading scheduling latency. |
| 589 | large numbers of CPUs. | 589 | |
| 590 | 590 | Say Y if energy efficiency is critically important, and you don't | |
| 591 | Say Y if energy efficiency is critically important, particularly | 591 | care about real-time response. |
| 592 | if you have relatively few CPUs. | ||
| 593 | 592 | ||
| 594 | Say N if you are unsure. | 593 | Say N if you are unsure. |
| 595 | 594 | ||