quick performance measurements

[Thomas Miedema]

You could tweak the function `checkStats` in `testsuite/driver/testlib.py`
a bit, to not only report failures.

Maybe also disable the following check, if you're doing this from a debug
build:

    # Compiler performance numbers change when debugging is on, making the
results
    # useless and confusing. Therefore, skip if debugging is on.
    if compiler_debugged():
        skip(name, opts)


On Fri, Feb 12, 2016 at 9:30 PM, Richard Eisenberg <eir at cis.upenn.edu>
wrote:

>
> On Feb 12, 2016, at 3:28 PM, Simon Peyton Jones <simonpj at microsoft.com>
> wrote:
>
> > cd testsuite/tests/perf; make
>
> But that tells me only about failures. What if I have a tweak that makes
> an average 1% improvement over lots of files? That would be a nice
> improvement, but we don't have an easy way to collect this info, I think,
> other than perf.haskell.org.
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