alexandrnikitin

using System.Collections.Generic;
using System.Linq;

namespace AhoCorasickTree
{
    public class AhoCorasickTree
    {
        internal AhoCorasickTreeNode Root { get; set; }

        public AhoCorasickTree(IEnumerable<string> keywords)

alexandrnikitin

// remove untracked files, including directories (-d) and files ignored by git (-x) to force (-f) to exclude files (-e)
git clean -n -d -x -e ".idea"

// compare content of moved folder
git diff --ignore-space-change \
    HEAD:source/oldDir/someDir \
    HEAD~1:source/newDir/someDir/
    
// delete merged local branches (use "| xargs -n 1 echo" if not sure)
git branch --merged | grep -v master | sed 's/origin\///' | xargs -n 1 git branch -d

alexandrnikitin

// Find used space
df -h
du -h / | grep '[0-9\.]\+G'
du -h --max-depth=1 | sort -hr

/bin/treesize
#/bin/sh
du -k --max-depth=1 | sort -nr | awk '
     BEGIN {
        split("KB,MB,GB,TB", Units, ",");

alexandrnikitin

-Xms196G
-Xmx196G
-XX:+UseG1GC
-XX:+ParallelRefProcEnabled
-XX:MetaspaceSize=1024M
-XX:MaxMetaspaceFreeRatio=90
-Xloggc:/var/log/service/gc.log
-XX:+PrintGCDetails
-XX:+PrintGCDateStamps
-XX:+PrintReferenceGC

alexandrnikitin

sudo rpm --import https://www.elrepo.org/RPM-GPG-KEY-elrepo.org
sudo rpm -Uvh http://www.elrepo.org/elrepo-release-7.0-3.el7.elrepo.noarch.rpm                                                                                                                                                             
sudo yum --disablerepo="*" --enablerepo="elrepo-kernel" list available
sudo yum --enablerepo=elrepo-kernel install kernel-ml
awk -F\' /^menuentry/{print\$2} /etc/grub2-efi.cfg
sudo grub2-set-default 0
sudo grub2-mkconfig -o /boot/grub2/grub.cfg
shutdown -r now

alexandrnikitin

namespace ConsoleApp1
{
    class Program
    {
        [StructLayout(LayoutKind.Sequential, Pack = 4)]
        private struct _GROUP_AFFINITY
        {
            public UIntPtr Mask;
            [MarshalAs(UnmanagedType.U2)]
            public ushort Group;

alexandrnikitin

sudo yum install -y systemtap systemtap-runtime
sudo yum install kernel-debuginfo kernel-debuginfo-common

sudo yum install yum-utils
debuginfo-install kernel-3.10.0-514.21.2.el7.x86_64


sudo yum install -y kernel-devel-$(uname -r)
sudo yum install -y kernel-debuginfo-$(uname -r)
sudo yum install -y kernel-debuginfo-common-$(uname -m)-$(uname -r)

alexandrnikitin

gcloud beta compute instances create colab-1-vm \
    --machine-type=e2-highmem-4 \
    --provisioning-model=SPOT \
    --boot-disk-size=200GB \
    --boot-disk-type=pd-balanced \
    --instance-termination-action=DELETE \
    --image=https://www.googleapis.com/compute/v1/projects/colab-marketplace-image-public/global/images/colab-mp-20220110 \
    --network=https://www.googleapis.com/compute/v1/projects/<INSERT_PROJECT_ID>/global/networks/default \
    --subnet=https://www.googleapis.com/compute/v1/projects/<INSERT_PROJECT_ID>/regions/<INSERT_REGION>/subnetworks/default \
    --no-restart-on-failure \

alexandrnikitin

using System;
using System.Collections.Generic;

namespace Adform.AdServing.AhoCorasickTree.Sandbox.V7g
{
    public class AhoCorasickTree
    {
        internal AhoCorasickTreeNode Root { get; set; }

        public AhoCorasickTree(IEnumerable<string> keywords)

alexandrnikitin

# disable power saving on CentOS 7
grep -E '^model name|^cpu MHz' /proc/cpuinfo
pgrep -lf ondemand
cat /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor
for CPUFREQ in /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor; do [ -f $CPUFREQ ] || continue; echo -n performance > $CPUFREQ; done
service cpuspeed stop
lsmod | grep ondemand
grep -E '^model name|^cpu MHz' /proc/cpuinfo