@programminginc - страница 974

Ludovic 'Archivist'

what is perf?

Performance

Parra

but

Parra

it's a fork

Ludovic 'Archivist'

it's a fork

It is a jmp

Parra

it's done like 10 times at most

Parra

im not forking 100 times per second

Ludovic 'Archivist'

Jmp to a faraway position generally cause cache misses

Ludovic 'Archivist'

im not forking 100 times per second

Ik

Ludovic 'Archivist'

But imagine it used like a relocation

Parra

Jmp to a faraway position generally cause cache misses

i see

Parra

what happens if the function does not fit in size with the old one? you alloc it in another place and change all calls to it?

Ludovic 'Archivist'

If you used it like a relocation, for something that may be called 100k times per second, that alone means a penalty of over 10ms

Ludovic 'Archivist'

what happens if the function does not fit in size with the old one? you alloc it in another place and change all calls to it?

You have to make it fit

Parra

You have to make it fit

xD

Ariana

a function that generate functions is useful actly

Dima

Lol

Ludovic 'Archivist'

Generally, you place it on a page boundary and get yourself a few hundred bytes more than needed

Ariana

a function that generate functions is useful actly

lets pretend im not abusing this

Parra

lets pretend im not abusing this

what are you working on Ariana?

Ariana

what are you working on Ariana?

A computer algebra system and i need a really fast way to evaluate functions repeatedly

Ludovic 'Archivist'

lets pretend im not abusing this

I can compile C symbols in some of my works with libTCC

Ariana

A computer algebra system and i need a really fast way to evaluate functions repeatedly

what better way is there to do so than writing in machine code in the heap or data segment!

Ludovic 'Archivist'

A computer algebra system and i need a really fast way to evaluate functions repeatedly

A usecase for tcc

Ariana

A usecase for tcc

tcc is nice

Parra

:F

Parra

A computer algebra system and i need a really fast way to evaluate functions repeatedly

nice

Ludovic 'Archivist'

tcc is nice

You would be able to define your functions in C and use them in your software

Ariana

You would be able to define your functions in C and use them in your software

yeah but needs to compile so eh

Ludovic 'Archivist'

yeah but needs to compile so eh

You need to man

Ludovic 'Archivist'

But it is fast

Ludovic 'Archivist'

Compiling sqlite with tcc takes less than 1s

Parra

XD

Parra

but output code is....

Parra

the most unoptimized possible

Ludovic 'Archivist'

but output code is....

For something that acts as a JIT, it is decent

Ariana

I mean a function that just plugs a number into a simple function isnt that bad acty

Ludovic 'Archivist'

the most unoptimized possible

The most naive*

Parra

but Ariana

Parra

who provides the c functions in your algebra system?

Parra

or do you have your own script language?

Ariana

Screw those :> use machine code

Ludovic 'Archivist'

Screw those :> use machine code

Tcc can generate that for you, that is what I emphasized

Ariana

Tcc can generate that for you, that is what I emphasized

yeah

Parra

Screw those :> use machine code

really?

Parra

what's the use case of your system?

Parra

people will code functions in asm?

Parra

for algebra?

Ariana

Being very fast at bruteforcing functions :>

Ariana

and subsituitions

Ariana

for like ODES/PDES etc

Parra

for like ODES/PDES etc

what's this?

Ariana

Basically like df/dx=f+1

Ariana

f=e^x-1

klimi

E=mc²

MᏫᎻᎯᎷᎷᎬᎠ

E=mc²

Einstein

Ariana

E=mc²

boring :>

klimi

I'm klimi

klimi

boring :>

Pi=3 !!!

Ariana

YAY

Ludovic 'Archivist'

Einstein

So 1909

MᏫᎻᎯᎷᎷᎬᎠ

I'm klimi

I'm lunatic

klimi

I'm lunatic

... meh

klimi

youre dot

Ludovic 'Archivist'

I'm lunatic

We noticed that

MᏫᎻᎯᎷᎷᎬᎠ

We noticed that

Ludooo Hi

Ludovic 'Archivist'

Ludooo Hi

Heeeeeeeeeey

MᏫᎻᎯᎷᎷᎬᎠ

How are you?

MᏫᎻᎯᎷᎷᎬᎠ

enum Ludo_State{TIRED};

klimi

Ludo

klimi

i want you to go to pm

klimi

i have something to tell you

Ariana

udol

klimi

enum Ludo_State{TIRED};

D

Ariana

aldol addition

MᏫᎻᎯᎷᎷᎬᎠ

udol

string().reverse ()

Ariana

lodu

Ariana

loud

Ludovic 'Archivist'

enum Ludo_State{TIRED};

Always

Ludovic 'Archivist'

XD

MᏫᎻᎯᎷᎷᎬᎠ

Hah