Moritz Kiefer af855e5675 Speed up Daml repl startup (#13172) ... * Speed up Daml repl startup Daml repl startup is stupidly slow to the point where starting up and executing 1+1 takes ~7s (piped to stdin so no typing included). This PR speeds this up to ~4.5s. In addition to that, we also display the repl process sooner and complete the last bit of setup while the user is typing. Specifically, we do the following: 1. Startup the JVM process in parallel with initializing our package db and only block on it once it’s started (and remove a stupid 1s sleep which doesn’t actually matter). 2. Load all packages in one go instead of one by one. This (roughly) matches how the script service works. 3. Only block on packages being loaded once we start running the script. Users can type before and we even typecheck their stuff before. We could take this further and do even more in parallel with users typing but this seems to strike a good balance between implementation complexity, UX (if startup actually fails you get somewhat sensible errors) & performance. changelog_begin changelog_end * handle tls logs changelog_begin changelog_end * Update compiler/damlc/daml-compiler/src/DA/Daml/Compiler/Repl.hs Co-authored-by: Moisés Ackerman <6054733+akrmn@users.noreply.github.com> * s/terminateBarrier/exitBarrier/ changelog_begin changelog_end Co-authored-by: Moisés Ackerman <6054733+akrmn@users.noreply.github.com>		2022-03-09 08:22:42 +00:00
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BUILD.bazel	update copyright headers (#12240)	2022-01-03 16:36:51 +00:00
repl_service.proto	Speed up Daml repl startup (#13172)	2022-03-09 08:22:42 +00:00