carl-mastrangelo

cmastrangelo@MacBook-GJG2C:/tmp/cpython
Wed Apr 08 12:54:44 $ ./python.exe
Python 3.13.13+ experimental free-threading build (heads/3.13:4002c3a4615, Apr  8 2026, 12:53:37) [Clang 21.0.0 (clang-2100.0.123.102)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> from concurrent.futures import ThreadPoolExecutor
...
... count = 0
... with ThreadPoolExecutor(max_workers=3) as executor:
...     def inc():
...         global count

carl-mastrangelo

from concurrent.futures import ThreadPoolExecutor

count = 0
with ThreadPoolExecutor(max_workers=3) as executor:
    def inc():
        global count
        for i in range(10_000_000):
            count = count + 1
    
    executor.submit(inc)

carl-mastrangelo

* Python uses pathlib "/" operator to concatenate paths

carl-mastrangelo

tasks.withType<JavaCompile> {
    options.setFork(true)
    options.forkOptions.jvmArgs = listOf("-agentlib:jdwp=transport=dt_socket,server=y,suspend=y,address=127.0.0.1:5009")
}

carl-mastrangelo

𓏺ᵎʹˈˌᑊ꘡ᡃᎥʾʿˑːϳ𓏤𓏪ᣟilᴉіʻʼʽjȷƖјɾɿ𐅛𛱻ᐝᐧꞁɉǀ𑫥łᣞ𛲄𛲔ⲓɩ𛱆ᶅꝉᶖ𛰀𓏬ᓫ𑇁𐑦ɭᱸᱹᱺꞌꞋꜝꜞꜟ𖭐𖾖𖾘𐍘𐍭յլͿ𓏻𛰂𛰇𛰌ıӏΙІIǃӀᶘʝʆιtʇʈfɟ𓈒ˁˀ𐏔ᣳ𔖳ɪ𔓄Ⲓ𐌉𛱈𛱉𛰁ꭵ𖼨𐔎𓌀𛲀𛲂𛲐𛲒𔒨𐒃𓌁ⵏꓲⵑ𓊧ꓸꓽꓹꓼ𖾓𓊤ⵂՙᡟꞲ𑅠𓌃𐌹𓌠ⱁꞏᣚ𖾙ʺⱜ𛱧𛱪𖾔ꜗᔉᔊ𓐫𑫯𑫰𑇜ᣴ𖾗𐎃ŧᵻⵗ𑀭ꜣ෦ꭇᱼẝẜ𑛀𓎗𖡡𛲈𛲘ᒾꞙᑋ𓌙𖾝𔗷𓇩ˊˋˎˏɹɺrɼɽˮˆˇˬˉˍ𐊊𓌐𔖭𔖮𔖰ꤷ𓂭𔓯𐝓𛲅𛲕𖾕𓎘𐑢𐑘𓍐ꟾ𑃵𐑶𐑬𓌱Ɨƚɨ𓇋𓆬𑃶𛱩𖤱𖾜𖾞𑃸ᶂꬵꝇᣘꙇ𓍛ᵼᴊ𑃳ᔋ𑃷𓇞𓎫𐎇𐏒ⱡ𛱨𓌞𛲙𓇛ɬ𓌉ғ𛱤𐎂𐏑ⱃ𛰄ᣵⳋᵮᵳৎᵵ𛱑𛱒𛱓𑣡𑃹Ⳕƪ𖼩𔕿ꭍ𐑐𐑓𐑚𐑝𓄤𐕆᧒𓏰ꖎᣖᣗƭƫᕑ𓎄𓎆𓎇𓄥𑃱𑃲ଽ𛱥𓋩𖨘𓌜𓋿ꫴɫⳕ𖩙𖨄ᛵ𛱣𓀾ᡰ𐕇𐑪𐑨𐑩𐑧𖥣𑫫𑫬𑫳𑫴𑫵ⲣ𑣑𑁦ৰৱꜢⲝꬸ𛱦𑃨𓉼ⳇ𐑑𐑛𓍗ⲃȴ𖣣𔖱𔕻𔕽𔕺𔕼𓂆𓐪ᐦᒻᒽ𛱇𛱌𛱍𛱎𛱺𛱼𓌟ॱⰬ𓏯ȶ𛲆𛲖ᐨᐤᐩᕀᐡᐢᐪґ𐝁ɍⱦͱꙆ𑢱ⳉᝢ𓍙𑣁𓏜𑃴ꬹ𐙂ᐣꡲ𓌢𔓽রব𛱢𛱁𑛇෭ꜘᵲ𔘗𔔵𐑟𐑕𓐮ᗮᙾᙿ𐐮𔗌𓎿ꜥꞎট𓊪ⲋ𐑣𐑙г𔓈𓍢ʃʄ𓊢ঠչ𐑰𓏡ⲍ𑇐𖠣ᒃᒄ𛰅ነⳤচঢ𑃒𖦔𔖩𔖪𓉺𐎓𐏓Ⱁ𐝀𓍱ᶉ𓄉𓄻𐃊ꜰⱹꝼꞅ𓍲𓍋𓍌𓋾𓉶ꬲꞧ𒁹𛱂𓍏𓄈𖭁𓋴𖢞𐔺ꞈ𑅑দᔅᔇᔾᕐᖮ𛱡𑚤𖧻꣑𖽐𑆫ᔆ𓍘𖦕ꜱꬷ𓇪𖨷𓇜𓍡ᴯᐟᐠꔧᶋ𖠜𓇕𓇟𐑮𐑤𖦅𔒫ᴤʅ𐑱𐑲𓂂𖧹ⱐ𐊖𐑳𑆆ᡣꡱᰅʬ𖡐𔖸𓏼𓏾𓏿𓋽𓌂𓐂𖨮𑚙𛰔ǁ𔐓𔘅𓄽𛱏ⲅⲧধযएऍऎऐ𖠎𔘏ӻᑦᒡᒢւ𒑖𒑉ⳑⰽ𛰆𛰗रӷ𐐹𐑃𖦻𓌚𑅛১𖧳ꧏ𐔶ꝲ𖥾𔘸𔔥𓄙𓎛𓏹ⲥᝈঘ𖨣ꭋ𔓡𓐬𑚆𑚇𐌆𐌝𔕑𐑥𐑯ঽɻᴦ𓌑ᴌⳆ𐌔𐝕𑙓ऽͰ𑓑𐑠𐑖ζ𖨈𖢟𔗦𓎭𑂠දඳⲉꘓ𖠙ষনⅎ𔘊𓌰𓆄𐅗Ꭻ𖧖𔑏𔑐༥𔘭꣒𑃣𑫨ꀤꀫ𑃞𑅫𛱊𛱋𛱃𖣅𐑾𖼷𖼸𖼹Ꜥ𔗶ᡕᣕ𓆳𓆴𓆶ர𐕡ᓑꡨ𑂩𓄠𓌣𓆼𖦋𔖏𔖨𑅖Ⴈꈌ𖠵𐘍ꈋ𑛈𑃦𑃖𔔴𓋃ⲕಽ𖨙𖨋𔕮𑇗ᛳ𛰖𑊚ԁ𓄊𖥫𖧰𖨂𖢴ꈥᔈ𖨆মꤱꤶϝꋽ𖣢ꋼ𑣇ꬽꬾ𔖫𓍊ণহ𑚖᥉ⲭꜙ𑀤ꔪ𓃉𓃊𐚉ꆹ𖩚ꡡ𑅟ꆸ𐐾ƾ𑙘𐕁𖧾𔗨𔖒𓍍ⳁइईⱻᴇꛐ𔖀𔘱ᘤᘥᘦᘧ𛲃𛲓𔗎𔗏ⱉᴛᐥꫲᖟᣙ𔓸ꈤꈣ𖣻ገፃየখ𑫦𖡏𖤲𔓱𔗵𔘦𓉽𑛃𑋉ᙆᙇ𖥏𐑒𐑜𔑈𓋀ꛬꙋⳟ𓌹𓌺𛲇𛲗𔗐ȥᴢᶎⴭ𑚟ᵶɀⲹʐꜚ᱇Ⱃⲗ𒋙𑃟𖦸𑙄꣖𑅭ꙁꙃ𑛉𐝏𓏌𖢔𔕔Ꭸᛶꝛꝭ𐑄𑫧𔐔𖦾𑅕𑃚𑃤𐙧𑊁𐔻ꌅꌕꌖꑍꌄꌔ𖥈𑍝ꉂꉁꤰꤴꤳꤹথꊤꊣꉧꚃ𑣂ꭻⱈꞩꏂꏁꊫ𓊽ʂ𐑈ᶊꙅȿ𖡉𑙒২ᴠᵴपषꚹ𔗍𐐽𐑋ᶗꜿꞔⰵ𐑡𐑗ꞓ𐙆ኔፅ𖧱৯ঌগৡꄧꄦ𔘙𔔃𑙖ꃘ৬ꭉꮪ𖼳ⱛ𖠗ᳯᢃᢄ᱔ꛌꮷ𑇒ঙ𔗩𔓹ϛꅪꊰꑌꅩꊯꑋ༡ⰰᕁᕽ𑀟𑃙𑃜𑃠ꮀ𐐰𓐩𑅰ꅓꜛꜜꅒᣛ𔒽𐑂हꆾꝻꞄ𓋂𖥉᥋ꔷꆽꆼ𑇕ꊉꚍꚑ𑓗𑅞Ғ𖧩𖤃ꋊ𐐩𑃑ⲟⱶ᱁ꄔꆻ᱀𖠴𔘤𑚝૧ꛨƽᴣᶚᶔꞇ𑊟ѯⴾ𓄹𓄼𖤣𖤥𑇘𑚡𐙿𐚒ꏲꏱ𖦧ҁ᥍᥌𑆉᥏உबवॿʟᚆᚁᚐ𐒗𐒑𔖧ꄜꄛ꣓Ⳋꮞⲑᶓ𖦬ᴻ𖠱ᐜꇱ𑣎ꅨ𐘄𐘅ꀯ𖨚𐜥𓇡Ϟʏዕᠵᠶᡷ𐝃𖼴ꇻꊱ𐝄৪𐒦𑙑𑃧𑢡ઢઽ୯᥈᥎𑃰𖥮ꄡꄤꉖ

carl-mastrangelo

package com.carlmastrangelo;

import java.util.SplittableRandom;
import java.util.concurrent.ForkJoinPool;
import java.util.concurrent.RecursiveAction;
import java.util.concurrent.atomic.AtomicLong;

public final class Queens {

  public static void main(String [] args) throws Exception {

carl-mastrangelo

// Writes numbers less than 172 in one byte, numbers less than 1936 in 2 bytes.  
private static void writeInt(OutputStream os, int i) throws IOException {
    if (i < 0) {
      throw new UnsupportedOperationException("no neg");
    } else if (i < 172) {
      os.write((byte) i);
    } else if (i < 1936) {
      i -= 172;
      os.write((byte)(172 + 42 + (i % 42)));
      os.write((byte)(172 + (i / 42)));

carl-mastrangelo

/*
Benchmark                   (executor)  (sleepMillis)  (sleeps)  Mode  Cnt     Score    Error  Units
SleeperBenchmark.Bench.run      CACHED              1         1    ss   30     1.180 ±  0.028  ms/op
SleeperBenchmark.Bench.run      CACHED              1         8    ss   30     1.227 ±  0.044  ms/op
SleeperBenchmark.Bench.run      CACHED              1        64    ss   30     1.365 ±  0.045  ms/op
SleeperBenchmark.Bench.run      CACHED              1       512    ss   30     3.764 ±  0.476  ms/op
SleeperBenchmark.Bench.run      CACHED              1      4096    ss   30    13.375 ±  0.996  ms/op
SleeperBenchmark.Bench.run       FIXED              1         1    ss   30     1.234 ±  0.035  ms/op
SleeperBenchmark.Bench.run       FIXED              1         8    ss   30     1.362 ±  0.084  ms/op
SleeperBenchmark.Bench.run       FIXED              1        64    ss   30     9.433 ±  0.409  ms/op

carl-mastrangelo

# From page 16 of https://ntruprime.cr.yp.to/nist/ntruprime-20201007.pdf
# Linked from https://www.imperialviolet.org/2021/08/26/qrencoding.html

def rebase(innums, indenoms, limit, newbase):
    if len(innums) != len(indenoms):
        raise "Bad"
    syms = []
    if len(innums) == 1:
        num, denom = innums[0], indenoms[0]
        while denom > 1:

carl-mastrangelo

# From https://datatracker.ietf.org/doc/html/draft-msporny-base58-03
# The description on that page is misleading or just wrong.
# This was derived from converting the Rust code here:
# https://github.com/hachi-bitto/btc-wallet/blob/5dde65a262d3239a23292fc2a4a692994603aeb0/wallet/src/base58.rs

TABLE = "123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz"

FORWARD = {k:v for (k, v) in enumerate(TABLE)}
BACK = {k:v for (v, k) in enumerate(TABLE)}