On my Mac, "time make regression" gives the following results:
3.3.23 1050.970u 5.850s 23:24.91 75.2% 0+0k 1+23io 0pf+0w
3.2 1249.210u 6.040s 24:16.30 86.1% 0+0k 0+23io 0pf+0w
All this using the defaults compile and run options. However, I'm not
sure it proves anything since the regression tests themselves have
changed. Is there a constant benchmarking test?
Are you are using the 3.2 testsuite with 3.2 and the 3.3.23 testsuite
with 3.3.23? If so I am surprised that 3.3.23 shows less user time
than 3.2.
The reason this is surprising is that there are MANY more tests in
3.3.23 than in 3.2. The long fifth batch consists of new tests. The
first four batches are mainly old tests. I suppose I should go back
and run the 3.2 regressions and see how long they take.