download_to_file Process is very use Cpu

[aradariya]

$MadelineProto->download_to_file

this opration used 25% of CPU my Windows server
2 core 3.40 GHz

i use MultiThreading For Downloads Process . 4 Process use 100% of My Cpu !!
pls help me for this :(

[danog]

1. Use linux to reduce CPU usage
2. Install the openssl and gmp extensions
3. MadelineProto does not support multihreading with pthreads; use multiprocessing instead

[aradariya]

@danog
i test it downt work
how to change $part_size to 1024*256 ?
1024*1024 =>Download speed fast and High CPU Usage

after save madeline.phar script dont work - (utf8 encoding and other )

[danog]

Reducing the part_size will only slow down downloading and increase overhead (=> CPU usage will greatly increase).
Are you sure you tried running on a Linux server with the gmp and openssl extensions installed?

[aradariya]

@danog
yeah i run script in linux ,does not change cpu performance
i test part_size in other similar lib - when change part_size usage cpu is changed such as tlsharp and ...
in my Servers with cpu: 2 core 3.40 GHz

1024*124 = > 10% Cpu
1024*256= > 15% Cpu
1024*512= > 20% Cpu
1024*1024= > 25% Cpu

now i cant save madeline.phar after saving script dont work.

Fatal error: Uncaught PharException: phar "C:\xampp\htdocs\BotDl\madeline.phar" SHA1 signature could not be verified: broken signature in C:\xampp\htdocs\BotDl\madeline.phar:11 Stack trace: #0 C:\xampp\htdocs\BotDl\madeline.phar(11): Phar::mapPhar('madeline.phar') #1 C:\xampp\htdocs\BotDl\madeline.php(24): require('C:\xampp\htdocs...') #2 C:\xampp\htdocs\BotDl\index.php(9): include_once('C:\xampp\htdocs...') #3 {main} thrown in C:\xampp\htdocs\BotDl\madeline.phar on line 11

[danog]

Have you installed the openssl and GMP extensions?

[danog]

MadelineProto is very different from other libraries, and decreasing the part_size in MadelineProto GREATLY increases CPU usage; install openssl and GMP to reduce CPU usage.

[aradariya]

openssl and GMP installed , usage 60% of cpu
@danog

[aradariya]

@danog
are you haven't any idea ?

[danog]

Are you sure you've installed the openssl extension? What does var_dump(extension_loaded('openssl')); say?

[danog]

Also, high CPU usage isn't really a problem, since the kernel really does a good job at scheduling the processes, to make sure everyone gets their time slice.