bobrik

Overly aggressive CFS

We're looking at CPU bandwidth control via CFS:

• https://www.kernel.org/doc/Documentation/scheduler/sched-bwc.txt

Reproduction program

Program does number of iterations, in each iteration we burn CPU in small chunks until we get 5ms of real time spent. On each iteration we also print how much

brycepg

#!/bin/bash
# source: https://cbs.centos.org/koji/rpminfo?rpmID=45050
set -xeuo pipefail
sudo yum install -y "tex(cmap.sty)" "tex(ecrm1000.tfm)" "tex(fancybox.sty)" "tex(footnote.sty)" "tex(framed.sty)" "tex(multirow.sty)" "tex(parskip.sty)" "tex(threeparttable.sty)" "tex(titlesec.sty)" "tex(upquote.sty)" "tex(wrapfig.sty)" "texlive-collection-fontsrecommended" "texlive-collection-latex" "tex(fncychap.sty)" python-sphinx > /dev/null

# Determine latex search directory
SEARCH_DIRECTORY="$(kpsewhich -var-value=TEXMFHOME)/tex/latex/local"
mkdir -p "$SEARCH_DIRECTORY"

# capt-of.sty has no Centos 7 package

KanjiMonster

#!/bin/sh

KERNEL=$1
PATCHVER=$2

[ -z "$1" -o -z "$2" ] && {
	echo "usage: refresh_kernel.sh <version> <release>"
	echo "example: refresh_kernel.sh 3.18 3.18.30"
	exit 1
}

sakamoto-poteko

[bits 16]

org 07c00h

    mov ax, cs
    mov ds, ax
    mov es, ax

    call check_a20
    test ax, ax

andelf

#!/usr/bin/env python
# -*- coding: utf-8 -*-


import operator
import itertools
import re

def debug(x):
    print 'debug', dir(x), x.group()