rickhull

[nix-shell:~/git/compsci]$ sh install_ruzzy.sh
<internal:/home/rwh/.asdf/installs/ruby/3.2.2/lib/ruby/3.2.0/rubygems/core_ext/kernel_require.rb>:85:in `require': libyaml-0.so.2: cannot open shared object file: No such file or directory - /home/rwh/.asdf/installs/ruby/3.2.2/lib/ruby/3.2.0/x86_64-linux/psych.so (LoadError)
        from <internal:/home/rwh/.asdf/installs/ruby/3.2.2/lib/ruby/3.2.0/rubygems/core_ext/kernel_require.rb>:85:in `require'
        from /home/rwh/.asdf/installs/ruby/3.2.2/lib/ruby/3.2.0/psych.rb:13:in `<top (required)>'
        from <internal:/home/rwh/.asdf/installs/ruby/3.2.2/lib/ruby/3.2.0/rubygems/core_ext/kernel_require.rb>:85:in `require'
        from <internal:/home/rwh/.asdf/installs/ruby/3.2.2/lib/ruby/3.2.0/rubygems/core_ext/kernel_require.rb>:85:in `require'
        from /home/rwh/.asdf/installs/ruby/3.2.2/lib/ruby/3.2.0/rubygems.rb:608:in `load_yaml'
        from /home/rwh/.asdf/installs/ruby/3.2.2/lib/ruby/3.2.0/rubygems/config_file.rb:346:in `load_file'
        from /home/r

rickhull

require 'rbconfig/sizeof'  # can we use 64 bit ints?
require 'benchmark/ips'
require 'bitset'

# this should work well up to 64 bits on 64 bit platforms
# using native integers
# beyond that, Bignums will be generated
class BitsInt
  attr_reader :int

rickhull

require 'zlib'
require 'digest'
require 'openssl'
require 'benchmark/ips'

DIGESTS = %w[MD5 SHA1 SHA256 SHA384 SHA512 RMD160].map { |name|
  Digest(name).new
}

OPENSSL_DIGESTS = %w[SHA1

rickhull

[rwh@nixos:~/code/59774592dbaf12d47fa53d0c29c13e6d]$ ruby --version
ruby 3.2.2 (2023-03-30 revision e51014f9c0) [x86_64-linux]

[rwh@nixos:~/code/59774592dbaf12d47fa53d0c29c13e6d]$ ruby test_digest.rb
Run options: --seed 50097

# Running:

..........

rickhull

require 'bitset'
require 'zlib'

class BloomFilter
  # just defaults, overrideable
  SEED = 0
  FPR = 0.01

  def self.num_bits(num_items, fpr: FPR)
    (-1 * num_items * Math.log(fpr) / Math.log(2) ** 2).ceil

rickhull

require 'thread'

class ThreadInterrupt < RuntimeError; end

def try_ip
  if rand(2).zero?
    sleep 0.5
    true
  else
    sleep(rand(5) + 1)

rickhull

best	[:SOCK_STREAM, :SOCK_DGRAM, :SOCK_SEQPACKET]
:SOCK_STREAM	TYPE SOCK_STREAM
:SOCK_DGRAM	TYPE SOCK_DGRAM
:SOCK_SEQPACKET	TYPE SOCK_SEQPACKET

other	[nil, :SOCK_RAW]
nil	TYPE SOCK_STREAM
:SOCK_RAW	TYPE SOCK_DGRAM

unsupported	[:SOCK_RDM, :SOCK_PACKET, :SOCK_NONBLOCK, :SOCK_CLOEXEC]

rickhull

  # MONITORING: services run on loopback interface
  #             nginx reverse proxy exposes services to network
  #             - grafana:3010
  #             - prometheus:3020
  #             - loki:3030
  #             - promtail:3031

  # prometheus: port 3020 (8020)
  #
  services.prometheus = {

rickhull

with import <nixpkgs> {};
with python3Packages;

let
  testing_common_database = buildPythonPackage rec {
    pname = "testing.common.database";
    version = "2.0.3";

    src = fetchPypi {
      inherit pname version;

rickhull

# Edit this configuration file to define what should be installed on
# your system.  Help is available in the configuration.nix(5) man page
# and in the NixOS manual (accessible by running ‘nixos-help’).

{ config, pkgs, ... }:

{
  imports =
    [ # Include the results of the hardware scan.
      ./hardware-configuration.nix