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| 2026-03-07 11:48:33 +0100 | <Guest89> | I assume there is some structure in my code that exacerbates the problem but I can't really see where |
| 2026-03-07 11:48:10 +0100 | <Guest89> | I've already been trying to use GHC.Compact but it doesn't seem to have affected runtimes at all |
| 2026-03-07 11:47:48 +0100 | <Guest89> | I have some data that suggests that the data itself isn't fragmented but the program allocates about twice as much as it uses, which also seems excessive |
| 2026-03-07 11:47:46 +0100 | <haskellbridge> | <loonycyborg> https://github.com/ezyang/compact <- this might help with excessive gc times |
| 2026-03-07 11:46:33 +0100 | <haskellbridge> | <sm> yes, +RTS -s is useful |
| 2026-03-07 11:46:16 +0100 | <Guest89> | it's verbose but I can navigate it at least? |
| 2026-03-07 11:45:59 +0100 | <Guest89> | I've mostly relied on the metrics provided by different RTS options so far |
| 2026-03-07 11:45:32 +0100 | <Guest89> | I'll be honest, I haven't figured out how to interact with packages like that yet; I've used stuff like eventlog2html but compiled as a separate executable |
| 2026-03-07 11:45:29 +0100 | <haskellbridge> | <sm> and you're right, it's overallocating (garbage collection should be a small percentage of your run time) |
| 2026-03-07 11:44:12 +0100 | <haskellbridge> | <sm> it will be hard to understand completely, but full of useful information. You can also process it with https://hackage.haskell.org/package/profiterole which makes it more readable. |
| 2026-03-07 11:42:04 +0100 | merijn | (~merijn@host-cl.cgnat-g.v4.dfn.nl) (Ping timeout: 256 seconds) |
| 2026-03-07 11:41:50 +0100 | <haskellbridge> | <sm> you must make a profiling build of your app, then run it with special flags |
| 2026-03-07 11:41:21 +0100 | <haskellbridge> | <sm> hi Guest89 . It's not the easiest process, but it will be useful to generate a simple time and space profile - the profiling chapter in the GHC Users's Guide should tell how |
| 2026-03-07 11:40:11 +0100 | <Guest89> | garbage collection takes 3 times as long as the code itself for example, which I think seems very excessive. I've been trying to play around with things like ghc-compact but it didn't seem to help things any |
| 2026-03-07 11:39:41 +0100 | <Guest89> | written. would anyone be willing to help me figure things out? |
| 2026-03-07 11:39:40 +0100 | <Guest89> | hello; I'm trying to profile an application that is rather performance sensitive and I'm hoping to reduce allocations as much as possible (this is for the purposes of a master's thesis I'm working on), but I'm having a little trouble isolating the hotspots in my code and understanding whether or not my code itself is overallocating as it is |
| 2026-03-07 11:39:06 +0100 | Beowulf | (florian@sleipnir.bandrate.org) (Quit: = "") |
| 2026-03-07 11:37:05 +0100 | merijn | (~merijn@host-cl.cgnat-g.v4.dfn.nl) merijn |
| 2026-03-07 11:36:19 +0100 | Guest89 | (~Guest89@185.45.21.144) |
| 2026-03-07 11:29:48 +0100 | CiaoSen | (~Jura@2a02:8071:64e1:da0:5a47:caff:fe78:33db) (Ping timeout: 264 seconds) |
| 2026-03-07 11:26:34 +0100 | ChaiTRex | (~ChaiTRex@user/chaitrex) ChaiTRex |
| 2026-03-07 11:26:25 +0100 | merijn | (~merijn@host-cl.cgnat-g.v4.dfn.nl) (Ping timeout: 272 seconds) |
| 2026-03-07 11:25:05 +0100 | ChaiTRex | (~ChaiTRex@user/chaitrex) (Ping timeout: 258 seconds) |
| 2026-03-07 11:23:59 +0100 | img | (~img@user/img) img |
| 2026-03-07 11:22:44 +0100 | img | (~img@user/img) (Quit: ZNC 1.10.1 - https://znc.in) |
| 2026-03-07 11:21:18 +0100 | merijn | (~merijn@host-cl.cgnat-g.v4.dfn.nl) merijn |
| 2026-03-07 11:19:03 +0100 | arandombit | (~arandombi@user/arandombit) (Remote host closed the connection) |
| 2026-03-07 11:15:15 +0100 | YoungFrog | (~youngfrog@39.129-180-91.adsl-dyn.isp.belgacom.be) youngfrog |
| 2026-03-07 11:14:56 +0100 | YoungFrog | (~youngfrog@2a02:a03f:ca07:f900:6149:6cda:888:c7a0) (Quit: ZNC 1.7.x-git-3-96481995 - https://znc.in) |
| 2026-03-07 11:14:27 +0100 | merijn | (~merijn@62.45.136.136) (Ping timeout: 244 seconds) |
| 2026-03-07 11:10:00 +0100 | merijn | (~merijn@62.45.136.136) merijn |
| 2026-03-07 11:07:29 +0100 | Ranhir | (~Ranhir@157.97.53.139) (Quit: KVIrc 5.2.6 Quasar http://www.kvirc.net/) |
| 2026-03-07 11:04:23 +0100 | Lord_of_Life | (~Lord@user/lord-of-life/x-2819915) Lord_of_Life |
| 2026-03-07 11:00:00 +0100 | Lord_of_Life | (~Lord@user/lord-of-life/x-2819915) (Excess Flood) |
| 2026-03-07 10:59:07 +0100 | merijn | (~merijn@host-cl.cgnat-g.v4.dfn.nl) (Ping timeout: 264 seconds) |
| 2026-03-07 10:54:06 +0100 | merijn | (~merijn@host-cl.cgnat-g.v4.dfn.nl) merijn |
| 2026-03-07 10:43:14 +0100 | merijn | (~merijn@host-cl.cgnat-g.v4.dfn.nl) (Ping timeout: 248 seconds) |
| 2026-03-07 10:41:35 +0100 | arandombit | (~arandombi@user/arandombit) arandombit |
| 2026-03-07 10:38:18 +0100 | merijn | (~merijn@host-cl.cgnat-g.v4.dfn.nl) merijn |
| 2026-03-07 10:36:08 +0100 | aka_dude | (~aka_dude@2a03:f80:30:f490::1) |
| 2026-03-07 10:35:12 +0100 | aka_dude | (~aka_dude@192.71.166.120) (Quit: Gateway shutdown) |
| 2026-03-07 10:27:20 +0100 | czan | (~czan@user/mange) czan |
| 2026-03-07 10:27:16 +0100 | merijn | (~merijn@host-cl.cgnat-g.v4.dfn.nl) (Ping timeout: 265 seconds) |
| 2026-03-07 10:25:51 +0100 | Goodbye_Vincent1 | (cyvahl@freakshells.net) Goodbye_Vincent |
| 2026-03-07 10:24:50 +0100 | Goodbye_Vincent1 | (cyvahl@freakshells.net) (Quit: ) |
| 2026-03-07 10:23:39 +0100 | Vizious | (~bes@user/Vizious) Vizious |
| 2026-03-07 10:20:17 +0100 | merijn | (~merijn@host-cl.cgnat-g.v4.dfn.nl) merijn |
| 2026-03-07 10:18:47 +0100 | humasect | (~humasect@192.249.132.90) (Quit: Leaving...) |
| 2026-03-07 10:15:07 +0100 | Vizious | (~bes@user/Vizious) (Quit: WeeChat 4.6.3) |
| 2026-03-07 10:12:17 +0100 | merijn | (~merijn@host-cl.cgnat-g.v4.dfn.nl) (Ping timeout: 265 seconds) |