jboner

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

dchest

/*

 IMPORTANT!!! DO NOT USE THIS. It works, but you'll probably get it wrong,
 because it must be keyed with at least 128 bits of entropy, and where
 do you get this entropy, huh?
  
  - In a browser, you get it from window.crypto.getRandomValues().
  - In Node, you get it from crypto.randomBytes()
  
 Now LOOK AT YOU! You already have secure ways to generate random bytes,

mcs07

/**********************************************************************
Copyright (c) 2013 by Matt Swain <[email protected]>

The MIT License

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

nathwill

assumes centos 7 host, typical configuration

- disable selinux: SELINUX=permissive in /etc/sysconfig/selinux
- disable auditd: systemctl disable auditd.service
- enable journald persistence: `Storage=persistent` in /etc/systemd/journald.conf
- mkdir /var/lib/container
- yum -y --nogpg --releasever=7 --installroot=/var/lib/container/centos install systemd passwd yum vim-minimal openssh-server
- systemd-nspawn -D /var/lib/container/centos
- set root passwd, set ssh port (e.g. 2222)
- set up systemd-nspawn service:

bhouse

Make a directory to install CentOS 7.2.1511 in

[root@localhost ~]# mkdir /centos_chroot

Make a directory for the rpm database

[root@localhost ~]# mkdir -p /centos_chroot/var/lib/rpm

Create the RPM database

kylemanna

README

The example below creates a TCP server listening on a stream (i.e. SOCK_STREAM) socket. A similar approach can be followed to create a UDP server on a datagram (i.e. SOCK_DGRAM) socket. See man systemd.socket for details.

An example server

Create an simple echo server at ~/tmp/foo/serve.py.

Scrumplex

// Original rules: https://github.com/coldfix/udiskie/wiki/Permissions
// Changes: Added org.freedesktop.udisks2.filesystem-mount-system, as this is used by Dolphin.

polkit.addRule(function(action, subject) {
  var YES = polkit.Result.YES;
  // NOTE: there must be a comma at the end of each line except for the last:
  var permission = {
    // required for udisks1:
    "org.freedesktop.udisks.filesystem-mount": YES,
    "org.freedesktop.udisks.luks-unlock": YES,

kittinunf

# Regex for Kotlin
--langdef=kotlin
--langmap=kotlin:+.kt
--langmap=kotlin:+.kts
--regex-kotlin=/^[[:space:]]*((abstract|final|sealed|implicit|lazy|inner|open)[[:space:]]*)*(private[^ ]*|protected)?[[:space:]]*class[[:space:]]+([[:alnum:]_:]+)/\4/c,classes/
--regex-kotlin=/^[[:space:]]*((abstract|final|sealed|implicit|lazy)[[:space:]]*)*(private[^ ]*|protected)?[[:space:]]*object[[:space:]]+([[:alnum:]_:]+)/\4/o,objects/
--regex-kotlin=/^[[:space:]]*((abstract|final|sealed|implicit|lazy|open)[[:space:]]*)*(private[^ ]*|protected)?[[:space:]]*((abstract|final|sealed|implicit|lazy)[[:space:]]*)*data class[[:space:]]+([[:alnum:]_:]+)/\6/d,data classes/
--regex-kotlin=/^[[:space:]]*((abstract|final|sealed|implicit|lazy)[[:space:]]*)*(private[^ ]*|protected)?[[:space:]]*interface[[:space:]]+([[:alnum:]_:]+)/\4/i,interfaces/
--regex-kotlin=/^[[:space:]]*type[[:space:]]+([[:alnum:]_:]+)/\1/T,types/
--regex-kotlin=/^[[:space:]]*((abstract|final|sealed|implicit|lazy|override|open|private[^ ]*(\[[a-z]*\])*|protected)[[

domske

There is a bug in Safari when using border-radius and overflow: hidden. Especially when applying transform to a child. In this case, overflow: hidden does not always work. The child ignores the border radius and overflows. It's a very old bug. And sadly it seems that it will never be fixed. Anyway, we can't wait for it.

There are some workaround. We need to place the element with the overflow attribute into a stacking context. I've tested the following workarounds on the latest version of iOS (14.4). You can choose what you want. But you should search the web for the particular attribute. (e.g. will-change should be rarely used. See docs)

Use this on the element with overflow: hidden and border-radius: