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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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| brrt | \o | 15:29 | |
| nwc10 | o/ | 15:30 | |
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| nine | Could it be that it may actually take longer to trigger a full collection on a 32 bit system? | 16:12 | |
| brrt | how so? | 16:17 | |
| (I've startd the change to have the guard ops use the deopt index... this is mostly going well but I have a few failing tests) | 16:18 | ||
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| jnthn | nine: Yes | 16:25 | |
| nine: Pointers are smaller, so objects are smaller, and grep for MVM_GC_GEN2_THRESHOLD_MINIMUM for the rest of the story :) | 16:26 | ||
| brrt | d'oh, never thought of that | 16:27 | |
| nine | Ooooh....that makes so much sense :) | 16:34 | |
| With that explanation and the one test run where a different GC test failed, I'm now confident in just raising the iteration limit of my tests :) | 16:35 | ||
| dogbert17 | nine: looking for more GC-related errors? | 16:37 | |
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| nine | dogbert17: it's about an Inline::Perl5 issue | 16:38 | |
| dogbert17 | aha | 16:39 | |
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| Geth | MoarVM/expr-jit-devirtualize: 142f51068b | (Bart Wiegmans)++ | 10 files [Spesh] Make deopt use index rather than target address We'd use the index to search for the deopt address during compilation, which makes the deopt index 'special'. And then we'd use the deopt address to search for the deopt index, in order to find the objects that we'd need to rematerialize. ... (9 more lines) |
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| MoarVM/expr-jit-devirtualize: 147f269792 | (Bart Wiegmans)++ | tools/jit-bisect.pl [Tools] Spesh bisect should learn about PEA |
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| dogbert17 | libuv 1.32 is now out - github.com/libuv/libuv/blob/v1.x/ChangeLog | 17:07 | |
| timotimo | when running a script with heap snapshots activated, seen takes up almost 10% and saw just over 5% | 17:58 | |
| to be fair, zstd also takes like 9% in total | 17:59 | ||
| i've been meaning to look into how multiple threads could work on compressing different attribute streams at the same time to get the heap snapshot speed up a little | 18:00 | ||
| i see 12.61% of perf's hits inside __strcmp_sse2_unaligned | 18:03 | ||
| i suppose i'll have to run without jit and with callgrind to get accurate info on this | |||
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| timotimo | there was a get_type_index-related cache that wasn't being used at all yet, I put that in and its hit rate is at 100% after the initial miss that sets up the cache slot | 19:08 | |
| but now there's a crash, too | |||
| reducing the debug value makes it go away | 19:09 | ||
| which is always welcome | |||
| MasterDuke | how/where is a cache existing but not being used? | ||
| timotimo | existing as in "there's an array put into a struct" | 19:10 | |
| not being used as in "never read from, never written to" | |||
| it's just for the heap dump profiler | |||
| MasterDuke | huh | ||
| timotimo | ==31911== Invalid read of size 8 | ||
| ==31911== Address 0x901bc8e0 is not stack'd, malloc'd or (recently) free'd | |||
| bleh | |||
| at least i got the crash in rr now | 19:19 | ||
| oh, that's a different crash | 19:20 | ||
| well ain't that fun | |||
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| timotimo | i'm seeing a string be put into the strings list of a CU, allocated in the gen2, then later on being overwritten by an object coming from the nursery | 20:05 | |
| i should have looked at GC_DEBUG earlier | 20:10 | ||
| MoarVM panic: Collectable 0x5d9fd00 in a gen2 freelist accessed | 20:18 | ||
| yes, exactly | |||
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| lizmat | and another Perl 6 Weekly hits the Net: p6weekly.wordpress.com/2019/09/09/...repidated/ | 21:34 | |
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