On 01/15/2014 10:20 AM, Simon Riggs wrote:
> (discuss: do we need another parameter to specify "cost"? Currently
> patch uses "sleep every 64kB of WAL")

It might be nicer to express this as "up to n MB of WAL per second", but
otherwise seems reasonable, and it's easy enough to convert WAL MB/s
into a delay by hand.

Initial tests of this show that it does limit index creation rates as
expected, while continuing to allow WAL generation at normal rates for
other concurrent work.

 Craig Ringer                   http://www.2ndQuadrant.com/
 PostgreSQL Development, 24x7 Support, Training & Services

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