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github.com/moarvm/moarvm | IRC logs at colabti.org/irclogger/irclogger_logs/moarvm Set by AlexDaniel on 12 June 2018. |
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| MasterDuke | timotimo: did you do anything with malloc_trim()? | 00:21 | |
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| timotimo | ah, sorry, i haven't yet | 00:52 | |
| what did i even do today ... | |||
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| MasterDuke | ah. if you or anybody else hasn't looked into it more in the next couple days i might get a chance to take a look again | 01:05 | |
| but too tired right now to do anything constructive, off to watch some of the second season of the punisher | 01:06 | ||
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| timotimo | i was super tired all day today and right now my left hand is unhappy | 01:09 | |
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| timotimo | perhaps tomorrow will be a "more talks and presentations" day then | 01:10 | |
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| brrt | ohai #moarvm | 08:04 | |
| yoleaux | 18 Mar 2019 22:51Z <lizmat> brrt: news.ycombinator.com/item?id=19425485 | ||
| brrt | thank you lizmat, I responded :-) | ||
| nwc10 | good *, brrt | 08:05 | |
| brrt | good * nwc10 | 08:11 | |
| what if the expression JIT IR is really too small | |||
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| lizmat | stackoverflow.com/questions/552093...-collector # seems to be overlooked ? | 09:43 | |
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| Guest27580 | jnthn: perhaps you missed it but here's a gist showing a test which fails on the moar-pea branch, it's almost certainly the same as the one uncovered by nwc10: gist.github.com/dogbert17/e6b0d003...9513d780cd | 14:33 | |
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| MasterDuke | new warnings when building moarvm, MIN and MAX redefined gist.github.com/MasterDuke17/d4b72...21513e2b3b | 15:32 | |
| brrt | that sucks... | 16:21 | |
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| MasterDuke | jnthn, timotimo, et at.: i've tried putting a malloc_trim(0) in a couple different places in finish_gc() github.com/MoarVM/MoarVM/blob/mast...ate.c#L132 , but keep getting a segv when profiling. any suggestions? | 17:33 | |
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| discord6 | <Rogue> Testing the bridge bot | 17:42 | |
| timotimo | yo | 17:43 | |
| discord6 | <timotimo> yo | ||
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| brrt | ohai discord6 | 18:00 | |
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| MasterDuke | jnthn: did you happen to catch my earlier question about malloc_trim() and the GC and profiling? | 23:34 | |
| jnthn | MasterDuke: Saw it, but no idea; didn't even glance what malloc_trim is for yet | 23:39 | |
| MasterDuke | jnthn: no hurry or anything. the experimentation and subsequent question was inspired by www.joyfulbikeshedding.com/blog/20...k-trimming | 23:41 | |
| jnthn | Hmm...what's the goal of calling this? | ||
| jnthn wonders how effective that'd be... | 23:42 | ||
| Our FSA and GC pools keep hold of everything they ever asked for :) | 23:43 | ||
| I guess if one had big amounts of stuff in malloc'd memory like buffers it maybe helps, but it sounds vulnerable to fragmentation stopping it doing much still? | |||
| What does the SEGV look like? | 23:44 | ||
| MasterDuke | well, that example that samcv was talking about a little while ago, of run()ing a cat of a file in a loop uses a bunch less ram | ||
| according to /usr/bin/time | 23:45 | ||
| jnthn | Hm, interesting | ||
| man7.org/linux/man-pages/man3/malloc_trim.3.html claims it's thread safe, which was gonna be my first guess | |||
| MasterDuke | jnthn: some info here colabti.org/irclogger/irclogger_lo...-03-15#l15 | 23:46 | |
| afk for a little bit | 23:47 | ||
| jnthn | Hmm, is profiling broken without this? :) | ||
| Just to sanity check | 23:48 | ||
| Also, does it blow anything up (tests, spectest, etc.) without profiling? | |||
| It feels odd that profiling would cause this | |||
| And nothing else | |||
| MasterDuke | jnthn: haven't run a spectest yet. but nqp and rakudo do compile ok | ||
| oh, that example may break under profiling anyway... | 23:49 | ||
| jnthn | OK, where'd you put it? inside the `if (is_coordinator)` is the sensible spot, I think | ||
| Sleep time :) o/ | 23:54 | ||