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@samhocevar
samhocevar / gist:00eec26d9e9988d080ac
Last active January 13, 2024 23:40
Configure sshd on MSYS2 and run it as a Windows service
#!/bin/sh
#
# msys2-sshd-setup.sh — configure sshd on MSYS2 and run it as a Windows service
#
# Please report issues and/or improvements to Sam Hocevar <sam@hocevar.net>
#
# Prerequisites:
# — MSYS2 itself: http://sourceforge.net/projects/msys2/
# — admin tools: pacman -S openssh cygrunsrv mingw-w64-x86_64-editrights
#
@onk
onk / .rubocop.yml
Last active January 15, 2018 02:30
僕の使っている .rubocop.yml
# rubocop v0.35.0 から inherit_gem という機能が増えたので gem にしました
# https://github.com/onk/onkcop
inherit_gem:
onkcop: "config/rubocop.yml"
@kwk
kwk / Makefile
Last active March 17, 2024 22:54
Compiling with Address Sanitizer (ASAN) with CLANG and with GCC-4.8
.PHONY: using-gcc using-gcc-static using-clang
using-gcc:
g++-4.8 -o main-gcc -lasan -O -g -fsanitize=address -fno-omit-frame-pointer main.cpp && \
ASAN_OPTIONS=symbolize=1 ASAN_SYMBOLIZER_PATH=$(shell which llvm-symbolizer) ./main-gcc
using-gcc-static:
g++-4.8 -o main-gcc-static -static-libstdc++ -static-libasan -O -g -fsanitize=address -fno-omit-frame-pointer main.cpp && \
ASAN_OPTIONS=symbolize=1 ASAN_SYMBOLIZER_PATH=$(shell which llvm-symbolizer) ./main-gcc-static
#!/usr/bin/env bash
# Loads and mounts an ISO over SMB via the
# SuperMicro IPMI web interface
#
# usage: supermicro-mount-iso.sh <ipmi-host> <smb-host> <path>
# e.g.: supermicro-mount-iso.sh 10.0.0.1 10.0.0.2 '\foo\bar\windows.iso'
set -x
@jboner
jboner / latency.txt
Last active June 27, 2024 14:47
Latency Numbers Every Programmer Should Know
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