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| 2026-04-18 11:51:17 +0000 | m | (~travltux@user/travltux) (Quit: WeeChat 4.7.2) |
| 2026-04-18 11:47:57 +0000 | gentauro | this is a longer story and not really related to Haskell as you say |
| 2026-04-18 11:47:41 +0000 | <gentauro> | Milan_Vanca: from uni days, CPU's aren't all what you expect (except the PlayStation 3 cell processor). Most parts of CPU are used by branch-prediction |
| 2026-04-18 11:47:01 +0000 | uli-fem | (~uli-fem@14-202-246-84.tpgi.com.au) (Ping timeout: 272 seconds) |
| 2026-04-18 11:46:57 +0000 | <jreicher> | Milan_Vanca: did you add any locking or resource contention to introduce the parallelisation? |
| 2026-04-18 11:42:51 +0000 | merijn | (~merijn@host-cl.cgnat-g.v4.dfn.nl) (Ping timeout: 246 seconds) |
| 2026-04-18 11:42:17 +0000 | uli-fem | (~uli-fem@14-202-246-84.tpgi.com.au) |
| 2026-04-18 11:39:43 +0000 | tremon | (~tremon@83.80.159.219) (Quit: getting boxed in) |
| 2026-04-18 11:38:39 +0000 | merijn | (~merijn@host-cl.cgnat-g.v4.dfn.nl) merijn |
| 2026-04-18 11:37:37 +0000 | hsw | (~hsw@106.104.103.195) hsw |
| 2026-04-18 11:27:26 +0000 | pavonia | (~user@user/siracusa) (Quit: Bye!) |
| 2026-04-18 11:27:19 +0000 | merijn | (~merijn@host-cl.cgnat-g.v4.dfn.nl) (Ping timeout: 264 seconds) |
| 2026-04-18 11:26:20 +0000 | uli-fem | (~uli-fem@14-202-246-84.tpgi.com.au) (Ping timeout: 244 seconds) |
| 2026-04-18 11:25:56 +0000 | xff0x | (~xff0x@2405:6580:b080:900:b92c:2467:1a30:4f61) |
| 2026-04-18 11:23:57 +0000 | xff0x | (~xff0x@2405:6580:b080:900:73ce:e440:32fb:1d76) (Ping timeout: 246 seconds) |
| 2026-04-18 11:21:49 +0000 | uli-fem | (~uli-fem@14-202-246-84.tpgi.com.au) |
| 2026-04-18 11:20:33 +0000 | <Milan_Vanca> | I would expect still 2x speedup so when CPU is busy par should be 1s. But it is not... interesting |
| 2026-04-18 11:20:29 +0000 | merijn | (~merijn@host-cl.cgnat-g.v4.dfn.nl) merijn |
| 2026-04-18 11:19:39 +0000 | <Milan_Vanca> | I have found yet another interesting fact same CPU idle, seq = 0.6s, par = 0.3s, CPU busy seq = 2s, par= 4,3s |
| 2026-04-18 11:15:45 +0000 | arandombit | (~arandombi@user/arandombit) (Remote host closed the connection) |
| 2026-04-18 11:13:23 +0000 | PickChea | (~PickChea@user/pickchea) (Quit: ERC 5.6.0.30.1 (IRC client for GNU Emacs 30.1)) |
| 2026-04-18 11:09:32 +0000 | divlamir | (~divlamir@user/divlamir) divlamir |
| 2026-04-18 11:09:13 +0000 | divlamir | (~divlamir@user/divlamir) (Read error: Connection reset by peer) |
| 2026-04-18 11:04:37 +0000 | arandombit | (~arandombi@user/arandombit) arandombit |
| 2026-04-18 11:04:37 +0000 | arandombit | (~arandombi@2a02:2455:8656:7100:9a5:64fb:d75b:893c) (Changing host) |
| 2026-04-18 11:04:37 +0000 | arandombit | (~arandombi@2a02:2455:8656:7100:9a5:64fb:d75b:893c) |
| 2026-04-18 11:03:30 +0000 | uli-fem | (~uli-fem@14-202-246-84.tpgi.com.au) (Ping timeout: 244 seconds) |
| 2026-04-18 11:03:05 +0000 | comonad | (~comonad@p200300d027288000c87b63c79bf92a6b.dip0.t-ipconnect.de) |
| 2026-04-18 11:01:12 +0000 | comonad | (~comonad@p200300d027019d009435023fd7f36a1f.dip0.t-ipconnect.de) (Ping timeout: 246 seconds) |
| 2026-04-18 10:59:03 +0000 | uli-fem | (~uli-fem@14-202-246-84.tpgi.com.au) |
| 2026-04-18 10:55:44 +0000 | puke | (~puke@user/puke) puke |
| 2026-04-18 10:54:18 +0000 | merijn | (~merijn@host-cl.cgnat-g.v4.dfn.nl) (Ping timeout: 255 seconds) |
| 2026-04-18 10:52:48 +0000 | arandombit | (~arandombi@user/arandombit) (Ping timeout: 246 seconds) |
| 2026-04-18 10:50:04 +0000 | merijn | (~merijn@host-cl.cgnat-g.v4.dfn.nl) merijn |
| 2026-04-18 10:49:25 +0000 | <Milan_Vanca> | Ah paralelization is hard... |
| 2026-04-18 10:48:42 +0000 | cawfee | (root@2401:c080:3800:3460::babe) (Quit: WeeChat 4.9.0) |
| 2026-04-18 10:48:00 +0000 | arandombit | (~arandombi@user/arandombit) arandombit |
| 2026-04-18 10:46:30 +0000 | uli-fem | (~uli-fem@14-202-246-84.tpgi.com.au) (Ping timeout: 246 seconds) |
| 2026-04-18 10:42:04 +0000 | uli-fem | (~uli-fem@14-202-246-84.tpgi.com.au) |
| 2026-04-18 10:35:24 +0000 | __monty__ | (~toonn@user/toonn) toonn |
| 2026-04-18 10:34:55 +0000 | <darkling> | Yes. Just off the top of my head, there's memory bandwidth and SMT that could affect the parallelism. There's undoubtedly a bunch of other reasons that I haven't thought of yet. |
| 2026-04-18 10:33:55 +0000 | arandombit | (~arandombi@user/arandombit) (Ping timeout: 276 seconds) |
| 2026-04-18 10:30:08 +0000 | raelie | (~raelie@user/raelie) () |
| 2026-04-18 10:28:38 +0000 | uli-fem | (~uli-fem@14-202-246-84.tpgi.com.au) (Ping timeout: 265 seconds) |
| 2026-04-18 10:28:17 +0000 | humasect | (~humasect@dyn-192-249-132-90.nexicom.net) (Quit: Leaving...) |
| 2026-04-18 10:24:42 +0000 | <Milan_Vanca> | Hello guyz, this might be offtopic but in the end it is related to haskell. Imaigne program you parallelize it and gain speedup... Then some time later the same program parallelized gained slowdown. My question is could different CPU show slowdown? |
| 2026-04-18 10:24:19 +0000 | merijn | (~merijn@host-cl.cgnat-g.v4.dfn.nl) (Ping timeout: 264 seconds) |
| 2026-04-18 10:23:32 +0000 | uli-fem | (~uli-fem@14-202-246-84.tpgi.com.au) |
| 2026-04-18 10:22:55 +0000 | Tuplanolla | (~Tuplanoll@85-156-32-112.elisa-laajakaista.fi) Tuplanolla |
| 2026-04-18 10:21:55 +0000 | uli-fem | (~uli-fem@14-202-246-84.tpgi.com.au) (Ping timeout: 264 seconds) |