Comment by William Stein for "sage -testall" is equivalent to "make test" -- they both run the script "$SAGE_ROOT/local/bin/sage-maketest". Neither of these run the tests marked "#long".As you guessed, "make testlong" is does run the long tests. It has a parallel version "make ptestlong" where the number of processes are controlled by the NUM_THREADS variable in "makefile". By default, it is set to either 8 or the number of cores on the machine, whichever is smaller. If you'd like to change this, you have to edit the corresponding line in the makefile.

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