diff options
Diffstat (limited to 'Documentation/sysctl')
| -rw-r--r-- | Documentation/sysctl/kernel.txt | 11 |
1 files changed, 3 insertions, 8 deletions
diff --git a/Documentation/sysctl/kernel.txt b/Documentation/sysctl/kernel.txt index d48bca45b6f2..84f17800f8b5 100644 --- a/Documentation/sysctl/kernel.txt +++ b/Documentation/sysctl/kernel.txt | |||
| @@ -374,15 +374,13 @@ guarantee. If the target workload is already bound to NUMA nodes then this | |||
| 374 | feature should be disabled. Otherwise, if the system overhead from the | 374 | feature should be disabled. Otherwise, if the system overhead from the |
| 375 | feature is too high then the rate the kernel samples for NUMA hinting | 375 | feature is too high then the rate the kernel samples for NUMA hinting |
| 376 | faults may be controlled by the numa_balancing_scan_period_min_ms, | 376 | faults may be controlled by the numa_balancing_scan_period_min_ms, |
| 377 | numa_balancing_scan_delay_ms, numa_balancing_scan_period_reset, | 377 | numa_balancing_scan_delay_ms, numa_balancing_scan_period_max_ms, |
| 378 | numa_balancing_scan_period_max_ms, numa_balancing_scan_size_mb and | 378 | numa_balancing_scan_size_mb and numa_balancing_settle_count sysctls. |
| 379 | numa_balancing_settle_count sysctls. | ||
| 380 | 379 | ||
| 381 | ============================================================== | 380 | ============================================================== |
| 382 | 381 | ||
| 383 | numa_balancing_scan_period_min_ms, numa_balancing_scan_delay_ms, | 382 | numa_balancing_scan_period_min_ms, numa_balancing_scan_delay_ms, |
| 384 | numa_balancing_scan_period_max_ms, numa_balancing_scan_period_reset, | 383 | numa_balancing_scan_period_max_ms, numa_balancing_scan_size_mb |
| 385 | numa_balancing_scan_size_mb | ||
| 386 | 384 | ||
| 387 | Automatic NUMA balancing scans tasks address space and unmaps pages to | 385 | Automatic NUMA balancing scans tasks address space and unmaps pages to |
| 388 | detect if pages are properly placed or if the data should be migrated to a | 386 | detect if pages are properly placed or if the data should be migrated to a |
| @@ -418,9 +416,6 @@ rate for each task. | |||
| 418 | numa_balancing_scan_size_mb is how many megabytes worth of pages are | 416 | numa_balancing_scan_size_mb is how many megabytes worth of pages are |
| 419 | scanned for a given scan. | 417 | scanned for a given scan. |
| 420 | 418 | ||
| 421 | numa_balancing_scan_period_reset is a blunt instrument that controls how | ||
| 422 | often a tasks scan delay is reset to detect sudden changes in task behaviour. | ||
| 423 | |||
| 424 | numa_balancing_settle_count is how many scan periods must complete before | 419 | numa_balancing_settle_count is how many scan periods must complete before |
| 425 | the schedule balancer stops pushing the task towards a preferred node. This | 420 | the schedule balancer stops pushing the task towards a preferred node. This |
| 426 | gives the scheduler a chance to place the task on an alternative node if the | 421 | gives the scheduler a chance to place the task on an alternative node if the |
