leonid-shevtsov

package main

import (
	"fmt"
	"runtime"
)

func main() {
	var stats runtime.MemStats

leonid-shevtsov

require 'json'
require 'strscan'

FILENAME = ARGV[0]
POOLSIZE = 6
BUFSIZE = 128 * 1024 * 1024

pool = Array.new(POOLSIZE) do |_idx| # rubocop:disable Metrics/BlockLength
  outpipe_out, outpipe_in = IO.pipe(encoding: Encoding::BINARY)
  cmdpipe_out, cmdpipe_in = IO.pipe(encoding: Encoding::BINARY)

leonid-shevtsov

require 'strscan'

stats = Hash.new { |h, k| h[k] = [10_000, -10_000, 0, 0] }

SEMI = String.new(';', encoding: Encoding::BINARY)
NEWLINE = String.new("\n", encoding: Encoding::BINARY)

BUFLEN = 128 * 1024 * 1024
buf = ' ' * BUFLEN
buf.force_encoding(Encoding::BINARY)

leonid-shevtsov

stats = {}

File.open('measurements.txt') do |f|
  f.each_line do |line|
    city, temp_s = line.split(';')
    temp = temp_s.to_f
    stats[city] ||= {
      min: 10_000,
      max: -10_000,
      sum: 0,

leonid-shevtsov

require 'csv'

def parse_monocsv(csv_string)
  columns = %i[
    date
    hour
    debit_or_credit
    details
    counteragent
    edrpou

leonid-shevtsov

enum DateIndex {
    // All dates are integers counting from this date
    static let zeroDate = Calendar.current.date(from: .init(year: 1970, month: 1, day: 1))!

    static func fromDate(_ date: Date) -> Int {
        Calendar.current.dateComponents([.day], from: zeroDate, to: date).day!
    }

    static func toDate(_ index: Int) -> Date {
        Calendar.current.date(byAdding: .day, value: index, to: zeroDate)!

leonid-shevtsov

VALUES_PER_SECOND = 10_000_000.0


# Probability of collision of a single generation
# - gen_per_second = how many values are generated per second
def p_gen(machine_count, gen_per_second)
  value_count = VALUES_PER_SECOND / gen_per_second
  1 - Math.exp(-machine_count*(machine_count-1)/(2*value_count))
end

leonid-shevtsov

package main

import (
	"fmt"
	"log"
	"os"
	"os/exec"
	"runtime"
	"strconv"
	"strings"

leonid-shevtsov

require 'concurrent/atomic/read_write_lock'
require 'benchmark/ips'
require 'active_support/core_ext/string'
rw = Concurrent::ReadWriteLock.new

Benchmark.ips do |x|
  x.report("with_read_lock") do
    rw.with_read_lock do
      Math.sqrt(4)
    end

leonid-shevtsov

#!/bin/sh

GITHUB_PAT_TOKEN=github_pat_xxx
REPO=myuser/myrepo
FILEPATH=online.txt

# echo -n '...' | base64
INCREMENT='Li4u'

FILEINFO=$(curl \