Todd Gamblin 5bdba98837 performance: spack spec should use a read transacction with -I ... `spack spec -I` queries the database for installation status and should use a read transaction around calls to `Spec.tree()`.		2019-12-23 23:17:59 -08:00
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spack	performance: spack spec should use a read transacction with -I	2019-12-23 23:17:59 -08:00