brunneis

alt + command + p + r + power

sudo pmset -a hibernatemode 0 standby 0 autopoweroff 0

Default:

sudo pmset restoredefaults
pmset -g

svet-b

junkdog

#!/usr/bin/env bash

#     --slave /usr/bin/$1 $1 /usr/bin/$1-\${version} \\

function register_clang_version {
    local version=$1
    local priority=$2

    update-alternatives \
        --install /usr/bin/llvm-config       llvm-config      /usr/bin/llvm-config-${version} ${priority} \

CMCDragonkai

Understanding the Memory Layout of Linux Executables

Required tools for playing around with memory:

• hexdump
• objdump
• readelf
• xxd
• gcore

trustin

diff -urN a/src/wl/sys/wl_cfg80211_hybrid.c b/src/wl/sys/wl_cfg80211_hybrid.c
--- a/src/wl/sys/wl_cfg80211_hybrid.c	2015-09-12 16:39:28.000000000 +0900
+++ b/src/wl/sys/wl_cfg80211_hybrid.c	2015-09-12 16:50:44.908084821 +0900
@@ -2150,8 +2150,12 @@
 	WL_DBG(("\n"));
 
 	if (status == WLC_E_STATUS_SUCCESS) {
-		err = wl_bss_roaming_done(wl, ndev, e, data);
-		wl->profile->active = true;
+		if (!wl_bss_roaming_done(wl, ndev, e, data)) {

shamil

How to mount a qcow2 disk image

This is a quick guide to mounting a qcow2 disk images on your host server. This is useful to reset passwords, edit files, or recover something without the virtual machine running.

Step 1 - Enable NBD on the Host

modprobe nbd max_part=8

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