parallel install core #286
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Currently, we install core packages sequentially and some of them take minimum one minute to install. We can install them in parallel to significantly reduce bootstrap time.
Current:
# output of time ./idpbuilder create --recreate real 2m53.446s user 0m1.647s sys 0m0.934sWith this PR:
# output of time ./idpbuilder create --recreate real 1m27.973s user 0m1.729s sys 0m0.919sThe absolute amount in reduction varies between systems, but it should reduce the time to bootstrap by a similar percentage.