Todd Gamblin cbf8553406 concretization: improve performance by avoiding database locks ... Checks for deprecated specs were repeatedly taking out read locks on the database, which can be very slow. - [x] put a read transaction around the deprecation check		2019-12-23 23:17:58 -08:00
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spack	concretization: improve performance by avoiding database locks	2019-12-23 23:17:58 -08:00