Lines Matching full:scan

527 memory node local to where the task is running.  Every "scan delay" the task
528 scans the next "scan size" number of pages in its address space. When the
531 In combination, the "scan delay" and "scan size" determine the scan rate.
532 When "scan delay" decreases, the scan rate increases.  The scan delay and
533 hence the scan rate of every task is adaptive and depends on historical
534 behaviour. If pages are properly placed then the scan delay increases,
535 otherwise the scan delay decreases.  The "scan size" is not adaptive but
536 the higher the "scan size", the higher the scan rate.
538 Higher scan rates incur higher system overhead as page faults must be
539 trapped and potentially data must be migrated. However, the higher the scan
542 memory accesses. These sysctls control the thresholds for scan delays and
546 scan a tasks virtual memory. It effectively controls the maximum scanning
549 numa_balancing_scan_delay_ms is the starting "scan delay" used for a task
553 scan a tasks virtual memory. It effectively controls the minimum scanning
557 scanned for a given scan.