Lines Matching refs:scan

483 memory node local to where the task is running.  Every "scan delay" the task
484 scans the next "scan size" number of pages in its address space. When the
487 In combination, the "scan delay" and "scan size" determine the scan rate.
488 When "scan delay" decreases, the scan rate increases.  The scan delay and
489 hence the scan rate of every task is adaptive and depends on historical
490 behaviour. If pages are properly placed then the scan delay increases,
491 otherwise the scan delay decreases.  The "scan size" is not adaptive but
492 the higher the "scan size", the higher the scan rate.
494 Higher scan rates incur higher system overhead as page faults must be
495 trapped and potentially data must be migrated. However, the higher the scan
498 memory accesses. These sysctls control the thresholds for scan delays and
502 scan a tasks virtual memory. It effectively controls the maximum scanning
505 numa_balancing_scan_delay_ms is the starting "scan delay" used for a task
509 scan a tasks virtual memory. It effectively controls the minimum scanning
513 scanned for a given scan.