libera/#ecl - IRC Chatlog

5:51:07 erru jackdaniel: im unsure about to go about adding --norc to give a speed boost to my executable. where is it added? i invoked the build command from within slime. should i add --norc to my inferior-lisp-program string? also i am not aware that ecl uses any rc file, because i basically just installed it a couple days / weeks ago

5:52:16 erru but adding it to inferior-lisp-program would likely not result in a startup speed boost of my cross compiled embedded binary, would it?

5:52:18 jackdaniel if you don't load quicklisp nor manually require asdf then it won't help

5:52:40 erru okay, so i guess im stuck with 6 secs of startup time then

5:53:18 erru thats fine though, i can still use it for long running programs, just not really for one-shot utilities

5:54:40 jackdaniel what are your soc specs?

5:55:51 erru i am running an in-circuit icnova oem board which has 400MHz single core, 16MB RAM, 256MB NAND flash

5:56:33 jackdaniel wow, cool; I'm glad that ECL can fit in 16M; what is the memory use when you run it?

5:57:14 erru im just trying to find it out, just wrote a for loop calling my script 100 times :D its so funny how it prints one line every 6 secs :D

5:57:39 jackdaniel let me know when you learn something ;p

5:57:42 jackdaniel I'd probably use valgrind

5:57:57 jackdaniel or htop to just skim it

5:58:27 erru yea but im trying to figure out how to get a second shell, im on a serial monitor which runs the script and i cant cancel it hahaha

5:59:21 jackdaniel screen/tmux perhaps?

6:18:49 erru not on there, will try to connect on a second line via ssh

6:22:29 erru so it says > 862 447 foo R 11088 9% 99% ./gl

6:22:49 erru that is 11kB memory usage and 99% CPU spike occasionally

6:23:09 erru the other times its at 0% cpu usage. 9% is the memory

6:23:46 erru but all things considered, that does not look too bad to be honest

6:26:23 erru can you tell me what causes the long startup time? it is compiled C at the end of the day. is it some library initialization?

6:26:42 erru can i view the generated C code somehow?

6:30:59 jackdaniel it is initialization probably

6:31:18 jackdaniel creating packages, objects etc

6:32:01 jackdaniel re C code, there are oarameters to compile-file to specify files for c compiler

6:32:13 jackdaniel if supplued, these files are not deleted

6:35:05 erru :output-file did the trick

6:51:20 erru while the c code looks pretty hideos, its also not half as bad as i would have expected. i have literally seen code written by real people that was less comprehensible

7:00:08 erru interestingly, a main function is absent. is that implemented in the depths of libecl?

7:03:37 jackdaniel yes, see src/cmp/cmpbackend-cxx/cmpmain.lsp (path from memory, may be a bit different)

7:03:50 jackdaniel fasls and executables have different initialization functions

7:04:16 erru i see, thanks

13:00:26 erru found it, it was cmpbackend-cxx.lsp but the path was correct :)

13:00:40 erru pretty simple, too

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