[Python-Dev] Disabling cyclic GC in timeit module (original) (raw)

Maciej Fijalkowski fijall at gmail.com
Sat Oct 8 00:13:40 CEST 2011

On Fri, Oct 7, 2011 at 11:47 PM, Nick Coghlan <ncoghlan at gmail.com> wrote:

On Fri, Oct 7, 2011 at 4:50 PM, Maciej Fijalkowski <fijall at gmail.com> wrote:

Hi

Can we disable by default disabling the cyclic gc in timeit module? Often posts on pypy-dev or on pypy bugs contain usage of timeit module which might change the performance significantly. A good example is json benchmarks - you would rather not disable cyclic GC when running a web app, so encoding/decoding json in benchmark with the cyclic GC disabled does not make sense. What do you think? No, it's disabled by default for a reason (to avoid irrelevant noise in microbenchmarks), and other cases don't trump those original use cases.

People don't use it only for microbenchmarks though. Also, you can't call noise a thing that adds something every now and then I think.

Er. How is disabling the GC for microbenchmarks any good by the way?

Cheers, fijal

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