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Kiswono Prayogo kokizzu

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Falsehoods programmers believe about prices

  1. You can store a price in a floating point variable.
  2. All currencies are subdivided in 1/100th units (like US dollar/cents, euro/eurocents etc.).
  3. All currencies are subdivided in decimal units (like dinar/fils)
  4. All currencies currently in circulation are subdivided in decimal units. (to exclude shillings, pennies) (counter-example: MGA)
  5. All currencies are subdivided. (counter-examples: KRW, COP, JPY... Or subdivisions can be deprecated.)
  6. Prices can't have more precision than the smaller sub-unit of the currency. (e.g. gas prices)
  7. For any currency you can have a price of 1. (ZWL)
  8. Every country has its own currency. (EUR is the best example, but also Franc CFA, etc.)
kokizzu / result.txt
Last active Jul 8, 2021
View result.txt
│ Index │ Implementation │ Solution │ Label │ Passes │ Duration │ Threads │ Algorithm │ Faithful │ Bits │ Passes/Second │
│ 1 │ cpp │ 3 │ flo80_constexpr │ 220667 │ 5.00002 │ 1 │ base │ no │ 1 │ 44133.26760 │
kokizzu / gist:f8fd3d56145aa88d87a039bee97b703a
Created Jun 4, 2021 — forked from julianlam/gist:07abef272136ea14a627
Exposing a directory on the host machine to an LXC container
View gist:f8fd3d56145aa88d87a039bee97b703a

Exposing a directory on the host machine to an LXC container

  1. Log into the container and create an empty directory, this will be the mount point
  2. Log out and stop the container.
  3. Open to your container's config file
    • For regular LXC containers: /var/lib/lxc/mycontainer/config
    • For unprivileged LXC containers: $HOME/.local/share/lxc/mycontainer/config
  4. Add a new line above the lxc.mount directive, that follows the format below. Substitute proper paths as necessary:
    • lxc.mount.entry = /path/to/folder/on/host /path/to/mount/point none bind 0 0
    • Both of these paths are relative to the host machine.
kokizzu / reclaimWindows10.ps1
Created Jun 2, 2021 — forked from alirobe/reclaimWindows10.ps1
This Windows 10 Setup Script turns off a bunch of unnecessary Windows 10 telemetery, bloatware, & privacy things. Not guaranteed to catch everything. Review and tweak before running. Reboot after running. Scripts for reversing are included and commented. Fork of (different defaults). N.…
View reclaimWindows10.ps1
# Tweaked Win10 Initial Setup Script
# Primary Author: Disassembler <>
# Modified by: alirobe <> based on my personal preferences.
# Version: 2.20.2, 2018-09-14
# Primary Author Source:
# Tweaked Source:
# Tweak difference:
# @alirobe's version is a subset focused on safely disabling telemetry, some 'smart' features and 3rd party bloat ...
kokizzu /
Created May 10, 2021 — forked from codenoid/
Some resources that have helped me learn golang over the last 3 years.

Some resources that have helped me learn golang over the last 3 years. I taught myself golang, it was a lot of grinding initially but I went through with it because I really liked the simplicity yet ability to be bare metal.

Here are some resources that have helped me in my journey. Sharing them here in case anyone is looking for study materials. [Disclaimer: These are links/notes collected over 3 years and not necessarily in order of expertise, but I will try my best to order them starting from basic ones and moving to more advanced resources]

Firstly - and .Learn straight from the gophers mouth. - Todd Mcloeds Course which I completed. Lays a strong and solid foundation of the most important golang concepts. I hope hes been updating his course. Highly recommend.

Tip: I created a repo while following the course. Helped drill the concepts in. Feel free to use this or or make something similar as your learn.

kokizzu /
Created Apr 25, 2021 — forked from steven2358/
FFmpeg cheat sheet
kokizzu / LICENSE
Created Apr 15, 2021 — forked from wlib/LICENSE
Run a shell script with bash, line-by-line, prompted on each command. Useful for running unknown scripts or debugging. Not a secure substitute for understanding a script beforehand.
MIT License
Copyright (c) 2021 Daniel Ethridge
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
kokizzu /
Created Apr 10, 2021 — forked from spion/
C++ versus V8 versus luajit versus C benchmark - (hash) tables


This benchmark has been misleading for a while. It was originally made to demonstrate how JIT compilers can do all sorts of crazy stuff to your code - especially LuaJIT - and was meant to be a starting point of discussion about what exactly LuaJIT does and how.

As a result, its not indicative of what its performance may be on more realistic data. Differences can be expected because

  1. the text will not consist of hard-coded constants
kokizzu / latency.txt
Created Apr 3, 2021 — forked from jboner/latency.txt
Latency Numbers Every Programmer Should Know
View latency.txt
Latency Comparison Numbers (~2012)
L1 cache reference 0.5 ns
Branch mispredict 5 ns
L2 cache reference 7 ns 14x L1 cache
Mutex lock/unlock 25 ns
Main memory reference 100 ns 20x L2 cache, 200x L1 cache
Compress 1K bytes with Zippy 3,000 ns 3 us
Send 1K bytes over 1 Gbps network 10,000 ns 10 us
Read 4K randomly from SSD* 150,000 ns 150 us ~1GB/sec SSD