jiridanek commented on pull request #809:
URL: https://github.com/apache/qpid-dispatch/pull/809#issuecomment-669110060


   I am now thinking of these opportunities for speedup
   
   * fix Proton build to not build test and example programs (either there 
isn't an option for it, or it does not work, not sure now)
   * set Dispatch build not to build the console, as that takes about 2 
minutes, caching npm does not help much, and is already tested on Travis and in 
Console GH Action
   * run the Action with all reasonable combinations of shard cound and -j, to 
see what the run times are
   * shard the tests smarter, based on the knowledge of their past duration, 
with some provision not to forget running newly added tests
   
   Having a target goal for the test runtime would help. I am now thinking of 
aiming for <10 minutes for the ASan instrumented run.
   
   Using larger -j values is risky as it increases the probability of spurious 
failures in the tests, caused by timeouts.
   
   Long term, it would help to have more efficient tests. A lot of what's there 
now is something a QE team would traditionally write; orchestrated end-to-end 
system tests, except it is better integrated with the build process, and 
therefore somewhat easier to debug than a stand-alone test suite (possibly 
running on multiple machines or docker containers) would be.


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