Welcome to the main channel on the development of MoarVM, a virtual machine for NQP and Rakudo (moarvm.org). This channel is being logged for historical purposes.
Set by lizmat on 24 May 2021.
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timo ah, hehe. whenever we run code that has been compiled, we have methods of the compiler on our stack, and that of course includes the compiler object itself, which also references the grammar and actions, and the backend and what-not :) 14:54
in theory, we could ask the compiler to give us the compiled thing and run it ourselves after the compiler has returned it, getting around that one particular stumbling block 14:55
but the compiler and backend also do a bunch of complex stuff related to like different commandline flags you may pass, and running the code with profiling, and stuff like that 14:56
lizmat so we should lift the argument handling out of NQP, so we *could* get rid of it? 15:00
timo i'm not sure what exactly the necessary changes are. all that matters is that once we invoke the actual user code, there's no longer any reference to the Compiler instance anywhere. which may be more difficult than expected if we're unlucky 15:24
even when the direct / clear references are gone, there's things like the StaticFrame holding on to other StaticFrame objects that were seen during execution, and type objects of classes that were arguments to the sub, or came from deconts or whatever, which is all related to spesh 15:25
lizmat how would that relate to nqp::getcomp("Raku" ) ? 15:28
timo ah, good question, i don't know how the compiler registry works. it's possible that for that reason we can't easily get rid of the compiler related modules even if we don't compile anything 15:33
oh, btw, do we load both Perl6::{Grammar,Actions} and Raku::{Grammar,Actions} with "use" from like, main.nqp or so? because that may cause us to always load both even if we only want one of the two variants 15:37
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timo yeah it does look like a simple -e '' will load both the perl6 grammar/actions and the raku grammar/actions 16:18
not sure if anything in the perl6 grammar will immediately pull in the raku grammar as a dependency or something, but there's definitely something early on that does it
i wrote up a patch to do dynamic module loading for the grammar and actions modules 16:44
aw it's still doing it 16:45
i think i compiled without "make install" maybe that's what did it 16:49
but that led me to a spot a few lines further down that was installing Raku::Grammar and Raku::Actions in an hll sym, so that will want patched up 16:50
inside setup-RakuAST-WHO, the load_module call for Perl6::BOOTSTRAP::v6c is giving me "Cannot iterate over a VMNull type object" in src/vm/moar/ModuleLoader.nqp:412 in merge_globals 17:17
not sure why that happens like that
lizmat re "oh, btw, do we load both Perl6::{Grammar,Actions} and Raku::{Grammar,Actions} with "use" from like, main.nqp or so? because that may cause us to always load both even if we only want one of the two variants" 17:36
yes we do, afaik 17:37
it's in main.nqp
first 4 lines:
use Perl6::Grammar;
use Perl6::Actions;
use Raku::Grammar;
use Raku::Actions;
I guess the idea behind it is that sooner or later the "use Perl6::Grammar" and "use Perl6::Actions" will go 17:38
Geth MoarVM/debugserver_refactor_thread_state_check: 889db36631 | (Timo Paulssen)++ | 3 files
WIP on handling threads in stolen state

we have to give the thread a chance to clear its state when it was asked to participate in GC and the GC run is already over.		 17:39
MoarVM/debugserver_refactor_thread_state_check: fe33b821eb | (Timo Paulssen)++ | src/debug/debugserver.c
tiny whitespace fix
timo 134028maxresidentk to 136140maxresidentk on main, 131096maxresidentk to 131500maxresidentk on that rakudo branch i pushed 17:50
not an enormous difference, but probably welcome anyway? 17:51
0.07276 +- 0.00205 seconds time elapsed ( +- 2.81% ) / 477,103,221 cycles # 5.398 GHz ( +- 2.51% ) - main 17:54
0.061108 +- 0.000406 seconds time elapsed ( +- 0.66% ) / 398,978,092 cycles # 5.359 GHz ( +- 0.52% ) - load_only_one 17:55
for just rakudo -e '' 17:56
lizmat that looks nice :) 17:57
would that affect further execution as well ?
and is that about this branch?
timo all it does is not load both modules with "use" but instead call into ModuleLoader 17:59
but also as the commit message says, RAKUDO_RAKUAST=1 makes it not work :)
what do you mean by "further execution" exactly? 18:01
lizmat that... :-) it doesn't, it's only affecting the startup
which commit are you talking about ? 18:02
timo yeah, only startup, plus the tiniest amount of time spent in major GC runs from just having fewer total objects
the rakudo commit
lizmat did you push that already? I don't see it ?
timo oh did i forget?
sorry, there it is! 18:03
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