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🦋 Welcome to the IRC channel of the core developers of the Raku Programming Language (raku.org #rakulang). This channel is logged for the purpose of history keeping about its development | evalbot usage: 'm: say 3;' or /msg camelia m: ... | log inspection situation still under development | For MoarVM see #moarvm Set by lizmat on 22 May 2021. |
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| pussies_slayer_9 | I'm quite surprised since I tought raku would be faster than perl when dealing with ints | 00:00 | |
| nah it's more than 10x slower | 00:01 | ||
| more like 12x | |||
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| pussies_slayer_9 | lots of garbage collection | 00:03 | |
| japhb | Hello! First, for good discussion, please choose a nick that is not insulting to the channel members. Second, it is off hours for the channel, so don't expect responses immediately. Third, the startup time of rakudo is more than the runtime of the perl call, so you're not getting a good comparison of runtime speed. Fourth, Raku has a builtin for that operation. :-) | 00:07 | |
| pussies_slayer_9 | japhb I'm pretty sure that the problem here is not startup time | 00:08 | |
| japhb | For the $int case, half of your runtime is startup. | 00:09 | |
| pussies_slayer_9 | just run it longer by adding zeros to the rangfe | ||
| it's still the same performance ratio | |||
| I think that the real differnce is that perl consider += a single operation while raku expands it to a = a + b | 00:10 | ||
| that is not the same unless the compiler is smart enough | |||
| in optimizing | |||
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| immoral_hazard | I hope this is new nick is not as offensive | 00:13 | |
| japhb | Better, I think. | 00:14 | |
| In any case, if you're interested in trying to figure out what all is going on, you might want to look at the output of `raku --target=ast` and `raku --target=optimize` and see what the compiler is making of the code. | 00:18 | ||
| (perl has modules that do similar things, but I haven't used them in quite a long time, so I don't know what is current) | |||
| immoral_hazard | I've seen the output of that, it seems quite simple | 00:21 | |
| japhb shrugs | 00:22 | ||
| QAST is undergoing a from-scratch rewrite next year. | 00:23 | ||
| Well, that's the current plan, anyway | |||
| immoral_hazard | cool | ||
| I suspect that escape analysis will help more with my example | 00:24 | ||
| japhb | immoral_hazard: That's also on a short list to be upgraded. :-) | ||
| tonyo | bench: my $int += $_ for 0..300000 | 00:25 | |
| benchable6 | tonyo, No new data found | ||
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| releasable6 | Next release in ≈6 days and ≈15 hours. 4 blockers. Please log your changes in the ChangeLog: github.com/rakudo/rakudo/wiki/ChangeLog-Draft | 03:00 | |
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| MasterDuke | benchable6: releases my $int += $_ for 0..300000 | 09:24 | |
| benchable6 | MasterDuke, starting to benchmark the 59 given commits | ||
| MasterDuke, benchmarked the given commits and found a performance difference > 10%, now trying to bisect | 09:26 | ||
| MasterDuke, benchmarked the given commits and found a performance difference > 10%, now trying to bisect | 09:27 | ||
| MasterDuke, benchmarked the given commits and found a performance difference > 10%, now trying to bisect | 09:28 | ||
| MasterDuke, «hit the total time limit of 240 seconds» | |||
| MasterDuke should work on benchable6 some... | |||
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| nine | perl -e 'my $int += $_ for 0..300_000_000' # 6.201s | 10:06 | |
| raku -e 'use nqp; my int $int += nqp::unbox_i($_) for 0..300_000_000;' # 2.116s | |||
| raku -e 'loop (my int $i = 0; $i < 300_000_000; $i++) { my int $int += $i }' # 2.344s | 10:08 | ||
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| Geth | nqp/remove_callsite_flat_named_flag: 420cb4dd3b | (Stefan Seifert)++ | 13 files Replace flatnamed arg flag by flat | named No need to have a separate flag when the combination of the existing flags means the same thing. Will free up the flat for other use in MoarVM. |
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| lizmat | Files=1349, Tests=117874, 316 wallclock secs (35.45 usr 9.57 sys + 4367.72 cusr 350.38 csys = 4763.12 CPU) | 11:52 | |
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| Geth | Slang-Roman: 8852a1e1cd | (Juan Julián Merelo Guervós)++ (committed using GitHub Web editor) | README.md MD fixes |
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| releasable6 | Next release in ≈5 days and ≈19 hours. 4 blockers. Please log your changes in the ChangeLog: github.com/rakudo/rakudo/wiki/ChangeLog-Draft | 23:00 | |
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