
I’m getting this perf improvement from T5837, which is type-function heavy. Is anyone else seeing this
bytes allocated value is too low:
(If this is because you have improved GHC, please
update the test so that GHC doesn't regress again)
Expected T5837(normal) bytes allocated: 48507272 +/-10%
Lower bound T5837(normal) bytes allocated: 43656544
Upper bound T5837(normal) bytes allocated: 53358000
Actual T5837(normal) bytes allocated: 42384144
Deviation T5837(normal) bytes allocated: -12.6 %
Its good, but I’d quite like to know which patch made the difference. Could it be
commit 03541cbae50f0d1cdf99120ab88698f29a278159
Author: Simon Peyton Jones

Hi,
according to
https://perf.haskell.org/ghc/#graph/tests/alloc/T5837
it was
commit a48de37dcca98e7d477040b0ed298bcd1b3ab303
Author: Sergei Trofimovich

Cool.
Perhaps someone can update the numbers with a comment pointing to the relevant commit?
Simon
| -----Original Message-----
| From: ghc-devs [mailto:ghc-devs-bounces@haskell.org] On Behalf Of
| Joachim Breitner
| Sent: 13 September 2016 17:00
| To: ghc-devs@haskell.org
| Subject: Re: Better perf?
|
| Hi,
|
| according to
| https://na01.safelinks.protection.outlook.com/?url=https%3a%2f%2fperf.
| haskell.org%2fghc%2f%23graph%2ftests%2falloc%2fT5837&data=02%7c01%7csi
| monpj%40microsoft.com%7ca9cef754e1f246ad325e08d3dbef0f3a%7c72f988bf86f
| 141af91ab2d7cd011db47%7c1%7c0%7c636093792210134741&sdata=fh4bxFFGsWKAA
| 8iZ0J%2faz6d3p4eLv2ZbX2K0qM%2b7GZY%3d
| it was
|
| commit a48de37dcca98e7d477040b0ed298bcd1b3ab303
| Author: Sergei Trofimovich
participants (2)
-
Joachim Breitner
-
Simon Peyton Jones