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2021-03-26 03:59:19 → royal_screwup21 joins (52254809@gateway/web/cgi-irc/kiwiirc.com/ip.82.37.72.9)
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2021-03-26 04:20:04 <sm[m]> dcbdan: can you profile / log timing information and find out what exactly is slow ?
2021-03-26 04:21:59 → dbmikus joins (~dbmikus@cpe-76-167-86-219.natsow.res.rr.com)
2021-03-26 04:24:04 <dcbdan> So I just removed drawing to screen for everything except the cursor--So it has to be that the repeated insert/delete into the data structure is slow
2021-03-26 04:24:52 → tpefreedom joins (~tsomers@184-157-240-110.dyn.centurytel.net)
2021-03-26 04:24:52 → hlisp joins (~hlisp@111.202.167.63)
2021-03-26 04:25:38 × zebrag quits (~inkbottle@aaubervilliers-654-1-109-157.w86-212.abo.wanadoo.fr) (Quit: Konversation terminated!)
2021-03-26 04:25:44 <dcbdan> A lot of items in the data structure are being deleted and then inserted. But I don't have a bulk insert or delete
2021-03-26 04:25:59 → zebrag joins (~inkbottle@aaubervilliers-654-1-109-157.w86-212.abo.wanadoo.fr)
2021-03-26 04:27:25 <Axman6> what does profiling say?
2021-03-26 04:27:55 <Axman6> it sounds like you're just guessing at the moment, and that's never a good idea with performance
2021-03-26 04:28:43 <dcbdan> Hmm, how should you go about profiling?
2021-03-26 04:30:28 × stass quits (~stas@2a00:13c0:63:7195::beef) (Read error: Connection reset by peer)
2021-03-26 04:30:46 hackage halive 0.1.8 - A live recompiler https://hackage.haskell.org/package/halive-0.1.8 (lukexi)
2021-03-26 04:30:46 → stass joins (~stas@2a00:13c0:63:7195::beef)
2021-03-26 04:31:03 <Axman6> what tool are you using to build your app? cabal or stack?
2021-03-26 04:32:58 <dcbdan> I'm just using ghc atm
2021-03-26 04:33:02 × hlisp quits (~hlisp@111.202.167.63) ()
2021-03-26 04:33:59 <Axman6> compile wiuth ghc -prof -fprof-auto-all, then run ./your-program +RTS --help to find out how to run profiling
2021-03-26 04:34:51 → jle` joins (~mstksg@cpe-23-240-75-236.socal.res.rr.com)
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2021-03-26 04:35:44 <Axman6> and consult https://downloads.haskell.org/ghc/latest/docs/html/users_guide/profiling.html
2021-03-26 04:37:11 <Axman6> hmm, I may have made up -fprof-auto-all, it might just be -fprof-auto
2021-03-26 04:37:14 → v01d4lph4 joins (~v01d4lph4@106.212.133.35)
2021-03-26 04:37:38 <dcbdan> thanks, I'm taking a look now
2021-03-26 04:37:44 × merijn quits (~merijn@83-160-49-249.ip.xs4all.nl) (Ping timeout: 252 seconds)
2021-03-26 04:38:08 × lateef quits (~lateef@2603-6080-6703-48f7-99a5-8367-daa2-03dd.res6.spectrum.com) (Quit: lateef)
2021-03-26 04:41:06 × dbmikus quits (~dbmikus@cpe-76-167-86-219.natsow.res.rr.com) (Ping timeout: 240 seconds)
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2021-03-26 04:42:16 hackage pantry 0.5.1.5 - Content addressable Haskell package management https://hackage.haskell.org/package/pantry-0.5.1.5 (MichaelSnoyman)
2021-03-26 04:44:59 → molehillish joins (~molehilli@2600:8800:8d06:1800:f8ba:265:7129:d312)
2021-03-26 04:47:51 → dbmikus joins (~dbmikus@cpe-76-167-86-219.natsow.res.rr.com)
2021-03-26 04:48:01 <dcbdan> this is crazy--ghc can tell you where the program spent all its time _facepalm
2021-03-26 04:48:17 <sm[m]> well..
2021-03-26 04:48:24 <Axman6> sort of
2021-03-26 04:48:27 <sm[m]> yes, if you can understand it :)
2021-03-26 04:48:27 <Axman6> someimtes
2021-03-26 04:48:36 <Axman6> sometimes too*
2021-03-26 04:50:21 × Unhammer quits (~Unhammer@gateway/tor-sasl/unhammer) (Ping timeout: 240 seconds)
2021-03-26 04:50:27 × molehillish quits (~molehilli@2600:8800:8d06:1800:f8ba:265:7129:d312) (Ping timeout: 250 seconds)
2021-03-26 04:50:28 <Axman6> it can get very dillicult to follow in big programs safly. I wish it had a better format that was a bit easier to inspect
2021-03-26 04:51:15 <Axman6> hmmmmmmmmmm, I have https://downloads.haskell.org/ghc/latest/docs/html/users_guide/profiling.html?highlight=profiling#json-profile-format and https://antonz.org/sqlite-is-not-a-toy-database/ open at the moment, maybe I could just use SQLite for querying the json output
2021-03-26 04:52:26 × dbmikus quits (~dbmikus@cpe-76-167-86-219.natsow.res.rr.com) (Ping timeout: 240 seconds)
2021-03-26 04:54:02 <tpefreedom> Hi. Do you have any haskell book recommendations?
2021-03-26 04:54:06 → Unhammer joins (~Unhammer@gateway/tor-sasl/unhammer)
2021-03-26 04:54:30 <sclv> depends. What do you want
2021-03-26 04:54:34 × shad0w_ quits (a0ca25a0@160.202.37.160) (Quit: Connection closed)
2021-03-26 04:54:47 <tpefreedom> I'm new to haskell.
2021-03-26 04:56:08 × waleee-cl quits (uid373333@gateway/web/irccloud.com/x-shbtzypknmvkwgta) (Quit: Connection closed for inactivity)
2021-03-26 04:58:23 <__minoru__shirae> tpefreedom: check this post out: https://www.reddit.com/r/haskell/comments/md4btm/good_way_to_learn_haskell/
2021-03-26 04:59:38 <Axman6> I've heard good things about Graham Hutton's Programming in Haskell, I learned with Simon Thompson's Haskell: The Craft of Functional Programming (and a university course, and most of my learning was after that course and book)
2021-03-26 04:59:53 × acarrico quits (~acarrico@dhcp-68-142-39-249.greenmountainaccess.net) (Ping timeout: 246 seconds)
2021-03-26 05:00:07 <Axman6> https://wiki.haskell.org/Books looks relatively up to date
2021-03-26 05:05:10 <tapas> this is the more up to date one https://haskellbook.com/
2021-03-26 05:05:15 <tapas> but hutton's book is good too
2021-03-26 05:05:33 <curiousgay> I need recommendation for FRP GUI library, there are several such libraries and I'm unsure which one to use
2021-03-26 05:05:52 <dcbdan> my program spends 20% of time in a size function: Box l r u d | l < r && u < d = (r-l)*(d-u) and 0 otherwise
2021-03-26 05:06:07 <dcbdan> according to profiling.. does that sound right?
2021-03-26 05:07:48 × Guest33172 quits (~sdrodge@unaffiliated/sdrodge) (Ping timeout: 252 seconds)
2021-03-26 05:08:22 <Axman6> well, that depends a lot on your program, maybe?
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2021-03-26 05:13:31 <dcbdan> judging from the profiling, all the time is spent finding neighbors of boxes on the screen--which calls the size function. so yeah, makes sense
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2021-03-26 05:16:40 <jle`> anyone have time to help me figure out why Coercible isn't being derived properly in this case?
2021-03-26 05:16:42 <jle`> https://gist.github.com/mstksg/f0568e8476b4e6075ab1d06376d0d930
2021-03-26 05:17:08 <jle`> i've tracked it down to the Coercible having troubles with seeing "functors" being coercible in data vs. newtype
2021-03-26 05:19:03 <jle`> in this case it sees `F X a` and `G Y a` as being coercible data ('a' phantom), but it can't match `F X` and `G Y` if they appear as type parameters
2021-03-26 05:19:14 → dbmikus joins (~dbmikus@cpe-76-167-86-219.natsow.res.rr.com)
2021-03-26 05:19:17 <jle`> but only for 'data' wrappers. 'newtype' wrappers are fine
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