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import java.io.UnsupportedEncodingException;
import java.security.InvalidAlgorithmParameterException;
import java.security.InvalidKeyException;
import java.security.NoSuchAlgorithmException;
import javax.crypto.BadPaddingException;
import javax.crypto.Cipher;
import javax.crypto.IllegalBlockSizeException;
import javax.crypto.NoSuchPaddingException;
import javax.crypto.spec.IvParameterSpec;
import javax.crypto.spec.SecretKeySpec;

sdogruyol

Crystal vs Node.js Websocket Benchmark

Crystal 0.9.1 with Kemal

require "kemal"

ws "/" do |socket|
  socket.on_message do |message|
 end

sdogruyol

Prax Installation on Arch Linux

1 - Install dnsmasq

sudo pacman -Syu
sudo pacman -S dnsmasq

2 - Configure dnsmasq to resolve .test domains to localhost via creating /etc/NetworkManager/dnsmasq.d/prax:

sdogruyol

Merhaba Dünya!
Hello world!
よ世界。

sdogruyol

require "http/server"

SOCKETS = [] of HTTP::WebSocketHandler::WebSocketSession

ws_handler = HTTP::WebSocketHandler.new do |socket|
  puts "Socket opened"
  SOCKETS << socket

  socket.on_message do |message|
    SOCKETS.each { |socket| socket.send "Echo back from server: #{message}" }

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require "benchmark"

channel = Channel(Int32).new

spawn do
  loop do
    channel.receive
  end
end

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require "benchmark"
require "colorize"
require "http"
require "spec/dsl"

class String
  private PRIME_RK = 2097169u32

  def index_old(search : String, offset = 0)
    offset += size if offset < 0

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sysctl -w fs.file-max=12000500
sysctl -w fs.nr_open=20000500
ulimit -n 20000000
sysctl -w net.ipv4.tcp_mem='10000000 10000000 10000000'
sysctl -w net.ipv4.tcp_rmem='1024 4096 16384'
sysctl -w net.ipv4.tcp_wmem='1024 4096 16384'
sysctl -w net.core.rmem_max=16384
sysctl -w net.core.wmem_max=16384

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struct Upload
  field : String
  data : IO::Delimited
  meta : HTTP::FormData::FileMetadata
  headers : HTTP::Headers
end

def parse_multipart(env)
  HTTP::FormData.parse(env.request) do |field, data, meta, headers|
    yield Upload.new field, data, meta, headers

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require "kemal"

logging false

get "/" do
  "Hello World!"
end