[10:04] *** lizmat left [10:14] *** lizmat joined [12:21] *** MasterDuke joined [12:25] timo: it appears that even `raku -e ''` utf8 decodes the entire setting source code. https://gist.github.com/MasterDuke17/25c7e89df71b96212f02f3a670d31382 has some info after i added an `if (bytes == ) abort();` to `MVM_string_utf8_decode` in src/strings/utf8.c [12:27] is that (always) necessary? if not, can it easily be removed? and if so, can it be done lazily/only when absolutely required? [12:27] oh, so while doing SET_BLOCK_OUTER_CTX we iterate over context lexicals as a hash, which means we vivify the lexical that has the source in it [12:29] oh, probably $?SOURCE or something like that? [12:30] yeah [12:30] do you have a timing for how long that decode takes? [12:30] (unrelated to raku/moarvm, but an oddity i experienced while looking at this, gdb on this system is weird. i couldn't get it to break in the body of the if i added if i put a bunch of printfs. i had to put an abort() to get it to actually break inside the body and not at evaluating the conditional) [12:31] not that one in particular. but we spend some (i think a decent amount of?) time utf8 decoding in general [12:32] what does "[PAC]" mean I wonder? [12:33] "A Pointer Authentication Code ( PAC ) is generated from the value of a given pointer, and is used to verify pointers before using them." maybe [12:34] https://stackoverflow.com/questions/78288651/arm-pointer-authentication-keys-a-and-b-on-apple-m1-and-m3 i am on an m2 [12:34] are the instruction pointers that are stored on the stack authenticated or something like that? [12:35] dunno [12:36] that's the first time i've seen that. but i've never added an abort() to cause a break before either [12:36] i'm not sure why you were having no luck setting that breakpoint; could come down to how exactly the code is optimized into assembly [12:37] like, ARM has the possibility to just put a condition on (almost?) any instruction [12:37] maybe there's nothing that really corresponds to the if at all? [12:37] well, i could break on the if, but then it fired every time the function was called [12:38] ah, right [12:38] but i didn't look at the assembly at all. i also know arm assembly even less than i know x86 [12:40] it'd surely be tricky to figure out what's going on in a highly optimized piece of assembly when you're not familiar with the instruction set already [12:40] I barely know ARM machine code myself [12:40] fyi i may be afk for a while quite soon, i just wanted to mention this before i forgot. boarding a cruise later this morning and i believe internet access is quite limited [12:43] oh, a cruise? tbh not a fan of those [12:44] the probability for everyone on a cruise to get everyone else's transmissible diseases tends towards 100% (this opinion was not influenced by the recent hantavirus thing) [12:44] never been before. in-laws are taking the whole family though, so can't really complain [12:44] i wish you a lot of fun! [12:44] thanks, kids are going to have a blast [12:45] oh, just noticed this open tab https://github.com/timo/moarperf/pull/19 [12:47] oh, do the links in the lower patch not need a file extension? [12:47] the extension's already there maybe? [12:47] i believe so [12:49] merged, thanks! [12:54] *** MasterDuke left [14:14] *** librasteve_ joined [15:24] perhaps $?SOURCE should be a blob to be decoded on access ? [15:28] *** bisectable6 left [15:45] *** greppable6 left [15:45] *** evalable6 left [15:45] *** shareable6 left [15:45] *** bloatable6 left [15:45] *** linkable6 left [15:45] *** benchable6 left [15:46] *** tellable6 left [15:46] *** coverable6 left [15:46] *** nativecallable6 left [15:46] *** releasable6 left [15:46] *** huggable6 left [15:46] *** sourceable6 left [15:48] *** evalable6 joined [15:48] *** unicodable6__ joined [15:48] *** benchable6 joined [15:48] *** linkable6 joined [15:48] *** quotable6 left [15:48] *** notable6 left [15:49] *** shareable6 joined [15:49] *** sourceable6 joined [15:49] *** unicodable6 left [15:49] *** committable6 left [15:49] *** greppable6 joined [15:49] *** committable6 joined [15:50] *** releasable6 joined [15:50] *** bloatable6 joined [15:50] *** bisectable6 joined [15:50] *** coverable6 joined [15:51] *** notable6 joined [15:51] *** nativecallable6 joined [15:51] *** tellable6 joined [15:51] *** quotable6 joined [15:52] *** huggable6 joined [17:39] lizmat: I'd think that would also cut down on memory footprint as well .... [17:40] and perhaps $?SOURCE is new enough that we don't actually need to decode on access, but just keep it as a Blob [19:53] *** lizmat left [19:54] *** lizmat joined [23:53] *** librasteve_ left