Logs: freenode/#haskell
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| 2020-10-28 17:56:51 | <typetetris> | https://github.com/ghc-proposals/ghc-proposals/pull/313 was touched last time in September ... hopefully it doesn't fizzle out. |
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| 2020-10-28 18:02:04 | <ixlun> | Hi all, I was wondering if someone may |
| 2020-10-28 18:02:16 | <ixlun> | be able to help me with some performance issues |
| 2020-10-28 18:02:42 | <ixlun> | After 1 min of execution I'm getting: total alloc = 60,821,691,232 bytes |
| 2020-10-28 18:03:07 | <ixlun> | so I'm presuming I've got a space leak somehwere |
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| 2020-10-28 18:04:42 | <ixlun> | apparently, (!) in https://termbin.com/7iia is responsible for a large part of that |
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| 2020-10-28 18:05:31 | <monsterchrom> | IIRC "total alloc" means nothing when taken out of context. |
| 2020-10-28 18:06:12 | <monsterchrom> | The correct first step is to look at "resident memory" only. |
| 2020-10-28 18:07:09 | <monsterchrom> | And the best way is to use the unix/linux programs "top" or "htop" to look at RSS only. Not even "virtual whatever", that's a lie. |
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| 2020-10-28 18:13:08 | <ixlun> | Hmm, I don't think it looks that terrible, |
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| 2020-10-28 18:13:27 | <ixlun> | but doesn't the above imply lots and lots of GC is occuring? |
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| 2020-10-28 18:14:41 | <dolio> | Space leaks aren't the same as doing lots of GC. |
| 2020-10-28 18:14:42 | <monsterchrom> | Yes, that does. |
| 2020-10-28 18:14:51 | <monsterchrom> | And what dolio said. |
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| 2020-10-28 18:19:11 | <rx_> | what column is rss? |
| 2020-10-28 18:19:32 | <monsterchrom> | Sorry, RES |
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| 2020-10-28 18:24:26 | <ixlun> | Hmm, I think I need to do some reasrch on optimising Haskell |
| 2020-10-28 18:24:27 | hackage | polysemy-methodology 0.1.0.0 - Domain modelling algebra for polysemy https://hackage.haskell.org/package/polysemy-methodology-0.1.0.0 (locallycompact) |
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| 2020-10-28 18:34:58 | hackage | hex-text 0.1.0.2 - ByteString-Text hexidecimal conversions https://hackage.haskell.org/package/hex-text-0.1.0.2 (chris_martin) |
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| 2020-10-28 18:51:47 | <rx_> | hm, so `let double x = 2 * x; let quadruple x = quadruple (double x)` almost crashed my computer |
| 2020-10-28 18:52:01 | <rx_> | why's that? |
| 2020-10-28 18:52:10 | <rx_> | using ghci |
| 2020-10-28 18:52:34 | <geekosaur> | because quadruple calls itself immediately |
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| 2020-10-28 18:52:58 | <rx_> | but it's not defined |
| 2020-10-28 18:53:09 | <geekosaur> | it's defined recursively at that point |
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| 2020-10-28 18:53:20 | <rx_> | ok |
| 2020-10-28 18:53:36 | <rx_> | can I limit the "heap" space |
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