funny-falcon

package main

const TableSize = uint16(1 << 14)

type Table []uint16

type Shard struct {
	Hash   uint64
	Weight float64
}

funny-falcon

let handlers = {}

handlers.get = function(target, property) {
	let v = target[property]
	if (typeof(v) == "function") {
		return async (...args) => {
			return new Promise((resolve, reject) => {
				target[property](...args, (err, ...rest) => {
					if (err) reject(err)
					else resolve(rest.length == 1 ? rest[0] : rest)

funny-falcon

class HashChTbl(K, V)
  include Enumerable({K, V})
  include Iterable({K, V})
  
  getter size : Int32 = 0
  # index into SIZES array
  @sz : UInt8 = 0_u8
  @rebuild_num : UInt16 = 0_u16
  @first : UInt32 = 0_u32
  @last : UInt32 = 0_u32

funny-falcon

[gui]
	spellingdictionary = en_US
	tabsize = 4
	fontui = -family \"DejaVu Sans\" -size 10 -weight normal -slant roman -underline 0 -overstrike 0
	fontdiff = -family \"DejaVu Sans Mono\" -size 10 -weight normal -slant roman -underline 0 -overstrike 0
[user]
	emal = funny.falcon@gmail.com
	email = funny.falcon@gmail.com
	name = Sokolov Yura
[http]

funny-falcon

26-5-1	11	x^64 + x^36 + x^32 + x^30 + x^28 + x^26 + x^24 + x^15 + x^13 + x^4 + 1
2-7-21	11	x^64 + x^35 + x^34 + x^32 + x^19 + x^18 + x^8 + x^4 + x^3 + x^2 + 1
5-27-18	11	x^64 + x^32 + x^26 + x^20 + x^18 + x^12 + x^9 + x^6 + x^5 + x^4 + 1
1-2-11	13	x^64 + x^41 + x^35 + x^33 + x^32 + x^18 + x^11 + x^9 + x^6 + x^3 + x^2 + x + 1
20-7-3	13	x^64 + x^52 + x^44 + x^40 + x^32 + x^24 + x^21 + x^16 + x^14 + x^12 + x^8 + x^4 + 1
23-8-1	15	x^64 + x^47 + x^41 + x^36 + x^32 + x^27 + x^26 + x^23 + x^22 + x^13 + x^11 + x^10 + x^6 + x^4 + 1
5-27-21	15	x^64 + x^33 + x^32 + x^29 + x^27 + x^23 + x^21 + x^15 + x^13 + x^10 + x^7 + x^6 + x^5 + x^3 + 1
10-13-6	17	x^64 + x^42 + x^39 + x^38 + x^37 + x^34 + x^31 + x^29 + x^28 + x^26 + x^24 + x^23 + x^21 + x^16 + x^14 + x^12 + 1
17-1-18	17	x^64 + x^37 + x^35 + x^32 + x^31 + x^27 + x^23 + x^21 + x^19 + x^16 + x^15 + x^13 + x^9 + x^7 + x^3 + x + 1
18-7-16	17	x^64 + x^47 + x^46 + x^41 + x^40 + x^34 + x^31 + x^25 + x^22 + x^20 + x^15 + x^14 + x^12 + x^10 + x^9 + x^8 + 1

funny-falcon

require "secure_random"
require "static_array"

module Hashing
  alias Type = UInt32
  @@seed = uninitialized StaticArray(UInt32, 6)

  struct StdHasher
    # lucky777 hash https://github.com/funny-falcon/fanom_hash/blob/master/lucky777.h
    struct Impl

funny-falcon

Report for improved id_table implementation

• it has up to 25% less size (19% on smallest tables)

• it is a bit slower on small tables (~3%) for hit and a bit faster for miss

• due to additional mix of key bits, it is always faster on big tables.

  Note: bit mixing makes small tables slower, so it is enabled only for big tables (>64 capacity).

  If performance for small tables much more important, mixing could be removed completely (this will return 1% on hit)

funny-falcon

package main

import (
	"flag"
	"fmt"
	"log"
	"net/rpc"
	"sync"
	"time"
)

funny-falcon

package main

import (
	"bufio"
	"encoding/binary"
	"flag"
	"fmt"
	"io"
	"log"
	"net"

funny-falcon

package benchmarks

/*
BenchmarkRandInt63_Global-4                     10000000               154 ns/op
BenchmarkRandInt63_Channel-4                    10000000               220 ns/op
BenchmarkRandInt63_Pool-4                       50000000                28.8 ns/op
BenchmarkSourceInt63_Pool-4                     50000000                34.9 ns/op
BenchmarkRandInt63_Source-4                     300000000                5.71 ns/op
BenchmarkRandInt63_ShardsGettid-4               50000000                29.2 ns/op
BenchmarkRandInt63_ShardsMid-4                  100000000               14.2 ns/op