[Bug 3099] Please parallelize filesystem scan

Ken Chase rsync-list-m829 at sizone.org
Fri Jul 17 14:51:27 UTC 2015

I dont understand - scanning metadata is sped up by thrashing the head
all over the disk instead of mostly-sequentially scanning through?

How does that work out?


On Fri, Jul 17, 2015 at 02:37:21PM +0000, samba-bugs at samba.org said:
  >--- Comment #8 from Chip Schweiss <chip at innovates.com> ---
  >I would argue that optionally all directory scanning should be made parallel.  
  >Modern file systems perform best when request queues are kept full.  The
  >current mode of rsync scanning directories does nothing to take advantage of
  >I currently use scripts to split a couple dozen or so rsync jobs in to
  >literally 100's of jobs.   This reduces execution time from what would be days
  >to a couple hours every night.   There are lots of scripts like this appearing
  >on the net because the current state of rsync is inadequate.  
  >This ticket could reasonably combined with 5124.
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Ken Chase - ken at heavycomputing.ca skype:kenchase23 Toronto Canada
Heavy Computing - Clued bandwidth, colocation and managed linux VPS @151 Front St. W.

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