sakateka’s gists

sakateka / get_pod_netns.sh

Created June 23, 2023 09:43 — forked from johscheuer/get_pod_netns.sh

This script get's the netns from a Kubernetes pod

	#### WAY with crictl
	#### TODO validate crictl with docker runtime !!

	# Get all pods of a specific node
	#kubectl get po --field-selector=spec.nodeName="fluffy-master" --all-namespaces
	kubectl get --all-namespaces po --field-selector=spec.nodeName=="$(hostname)" -o json \| jq -r '.items[] \| select(.status.hostIP!=.status.podIP) \| "\(.metadata.name) \(.metadata.namespace)"'

	# Get the Pod ID of the Pod with crictl
	POD_ID=$(sudo crictl pods --name=nginx-6f858d4d45-vnszm --namespace=default -q --no-trunc)

sakateka / build_kernel.sh

Created February 28, 2023 19:47 — forked from tdack/build_kernel.sh

Build the kernel for the Next Thing Co C.H.I.P.

	#!/bin/bash

	# Desktop build
	MAKE="make -j 4 ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf-"
	# C.H.I.P. build
	#MAKE="make"
	CDIR=$PWD
	LINUX=$CDIR/CHIP-linux
	WIFI=$CDIR/RTL8723BS

sakateka / config

Created February 28, 2023 19:40 — forked from tdack/config

	#
	# Automatically generated file; DO NOT EDIT.
	# Linux/arm 4.4.11 Kernel Configuration
	#
	CONFIG_ARM=y
	CONFIG_ARM_HAS_SG_CHAIN=y
	CONFIG_NEED_SG_DMA_LENGTH=y
	CONFIG_ARM_DMA_USE_IOMMU=y
	CONFIG_ARM_DMA_IOMMU_ALIGNMENT=8
	CONFIG_MIGHT_HAVE_PCI=y

sakateka / getDiagnosticOptions.js

Created January 19, 2021 08:07

	var server = java.lang.management.ManagementFactory.getPlatformMBeanServer();

	var mb = java.lang.management.ManagementFactory.newPlatformMXBeanProxy(
	server,
	"com.sun.management:type=HotSpotDiagnostic",
	com.sun.management.HotSpotDiagnosticMXBean.class
	);
	mb.getDiagnosticOptions();

sakateka / result_2017.txt

Last active February 20, 2021 06:48

threaded malloc test

	$ clang -g -Wall -O3 threaded_malloc.c -o threaded_malloc -pthread
	$ # ptmalloc2
	$ /usr/bin/time -v ./threaded_malloc
	100,000,000 allocations in 2439ms (41000410/s)
	100,000,000 deallocations in 13101ms (7633005/s)
	100,000,000 allocations in 14536ms (6879471/s)
	100,000,000 deallocations in 13306ms (7515406/s)
	100,000,000 allocations in 14947ms (6690305/s)
	100,000,000 deallocations in 2424ms (41254125/s)
	Command being timed: "./threaded_malloc"

sakateka / result.txt

Last active October 14, 2017 08:27

Shuffle slice indices vs append

	go test -bench=. -benchmem shuffle_test.go
	goos: linux
	goarch: amd64
	BenchmarkIndex-4 100000000 12.5 ns/op 0 B/op 0 allocs/op
	BenchmarkAppend-4 1000000 1423 ns/op 661 B/op 0 allocs/op
	PASS
	ok command-line-arguments 2.707s

sakateka / zk-flock_bash_example.sh

Last active January 12, 2018 08:52

Background zk lock in bash with https://github.com/noxiouz/python-flock

	coproc ZKLOCK {
	zk-flock -w 10 -x 81 -c $ZK_FLOCK_CONFIG $LOCK_NAME "bash -c 'echo Locked; read'"
	if (($? == 81)); then
	echo "LockBusy"
	else
	echo "Failed"
	fi
	}
	zk_stdin=${ZKLOCK[1]}
	read -u ${ZKLOCK[0]} zk_reply 2>/dev/null

sakateka / lua.go

Last active November 24, 2016 20:38

lua plugin benchmark

	package main

	import (
	"fmt"
	"reflect"
	"strconv"

	luar "github.com/layeh/gopher-luar"
	lua "github.com/yuin/gopher-lua"
	)

sakateka / c.sh

Created January 8, 2016 02:21

Interactive C Shell

	c(){
	local go_libs="-lm" go_flags="-g -Wall -include allheads.h -O0"

	local prompt="C > "
	local first_line="int main(int argc, const char *argv[]){"
	local end_line="}"
	local code prev_code line
	local HISTFILE="~/.c.hist"

	#while read -erp "C > " line; do

sakateka / parallel_logs_rotate.sh

Last active October 26, 2015 06:43

parallel many logs rotate

	#!/bin/bash

	pigz_mv() { g="$1-$(date +%Y%m%d-%s).gz"; pigz -k "$1" && mv "$1".gz "$g" && truncate -s0 "$1"; }

	plog_pigz_mv() {
	local logs="$@" ts=$(date '+%Y%m%d-%s');
	pigz -k $logs;
	for l in $logs; do
	mv ${l}.gz ${l}-${ts}.gz && truncate -s0 $l;
	done

Sergey Kacheev sakateka