Comment on The MySQL “swap insanity” problem and the effects of the NUMA architectureparentComments−justincormack14yUse rsync. It now preserves the buffer cache status that files had before so it does not stomp on your allocations.http://insights.oetiker.ch/linux/fadvise/−mceachen14yAlso, consider using --bwlimit to throttle the copy speed, so the spindle can still respond to other IO requests. (25-50% of unthrottled speed seemed to be a reasonable tradeoff).
Comments
Use rsync. It now preserves the buffer cache status that files had before so it does not stomp on your allocations.
http://insights.oetiker.ch/linux/fadvise/
Also, consider using --bwlimit to throttle the copy speed, so the spindle can still respond to other IO requests. (25-50% of unthrottled speed seemed to be a reasonable tradeoff).