KeepZero keepzero

## cachestat
#!/bin/bash
#
# cachestat - show Linux page cache hit/miss statistics.
#             Uses Linux ftrace.
#
# This is a proof of concept using Linux ftrace capabilities on older kernels,
# and works by using function profiling for in-kernel counters. Specifically,
# four kernel functions are traced:
#
#	mark_page_accessed() for measuring cache accesses

## lvmcache_on_centos6.md

      
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                keepzero
                / lvmcache_on_centos6.md
            
            
              Created
              November 22, 2017 07:48
                — forked from archsh/lvmcache_on_centos6.md
            
              
                Using lvmcache on CentOS6
              
          
    目标


使用SSD加速系统IO；
通过LVMCACHE来将SSD作为HDD的CACHE使用；

确认安装版本是否支持lvmcache：

lvm 命令

[root@localhost mnt]# lvm segtypes

（看输出里面有cache，cache-pool即表示支持了）

  
## bcache-status
#!/usr/bin/env python
#
# Dumb script to dump (some) of bcache status
# Copyright 2013 Darrick J. Wong. All rights reserved.
#
# This file is part of Bcache.  Bcache is free software: you can
# redistribute it and/or modify it under the terms of the GNU General Public
# License as published by the Free Software Foundation, version 2.
#
# This program is distributed in the hope that it will be useful, but WITHOUT

## .npmrc
registry = https://registry.npm.taobao.org

## .pip-pip.conf
[global]
index-url = https://pypi.douban.com/simple/

[install]
trusted-host = pypi.douban.com

[list]
format = columns

## etc-paths
/usr/local/bin
/opt/bin
/usr/bin
/bin
/usr/sbin
/sbin

## .vimrc
set nocompatible

" set encodings
set encoding=utf-8
set fileencodings=ucs-bom,utf-8,cp936,gb18030,big5,euc-jp,euc-kr,latin1

" few options just make things better
set scrolloff=3
set showmode
set showcmd

## term_no_256color.sh
if [[ $(echo $TERM | grep "rxvt-unicode") != "" ]]; then
        export TERM=rxvt
fi

if [ "$TERM"x = "xterm-256color"x ]; then
        export TERM=xterm
fi

if [ "$TERM"x = "screen-256color"x ]; then
        export TERM=screen

## firewall.sh
#!/bin/bash

# 1. 清除规则
iptables -F
iptables -X
iptables -Z

# 2. 设定政策
iptables -P INPUT ACCEPT #REJECT
iptables -P OUTPUT ACCEPT

## speedfox.sh
#!/bin/bash
# Alex Alexander (wired) <alex.alexander@gmail.com>
# http://www.linuxized.com
#
# this script makes sure your .mozilla folder is in tmpfs and constantly syncs it
# with a folder on your hdd so you won't lose anything :)
# for more details on how it works visit my blog in the link above.
#
# for this to have any meaning, the MOZTMPFS folder must be on tmpfs
# i.e. to make /var/tmp a tmpfs folder, add the following in /etc/fstab
	#!/bin/bash
	#
	# cachestat - show Linux page cache hit/miss statistics.
	# Uses Linux ftrace.
	#
	# This is a proof of concept using Linux ftrace capabilities on older kernels,
	# and works by using function profiling for in-kernel counters. Specifically,
	# four kernel functions are traced:
	#
	# mark_page_accessed() for measuring cache accesses
	#!/usr/bin/env python
	#
	# Dumb script to dump (some) of bcache status
	# Copyright 2013 Darrick J. Wong. All rights reserved.
	#
	# This file is part of Bcache. Bcache is free software: you can
	# redistribute it and/or modify it under the terms of the GNU General Public
	# License as published by the Free Software Foundation, version 2.
	#
	# This program is distributed in the hope that it will be useful, but WITHOUT
	[global]
	index-url = https://pypi.douban.com/simple/

	[install]
	trusted-host = pypi.douban.com

	[list]
	format = columns
	set nocompatible

	" set encodings
	set encoding=utf-8
	set fileencodings=ucs-bom,utf-8,cp936,gb18030,big5,euc-jp,euc-kr,latin1

	" few options just make things better
	set scrolloff=3
	set showmode
	set showcmd
	if [[ $(echo $TERM \| grep "rxvt-unicode") != "" ]]; then
	export TERM=rxvt
	fi

	if [ "$TERM"x = "xterm-256color"x ]; then
	export TERM=xterm
	fi

	if [ "$TERM"x = "screen-256color"x ]; then
	export TERM=screen
	#!/bin/bash

	# 1. 清除规则
	iptables -F
	iptables -X
	iptables -Z

	# 2. 设定政策
	iptables -P INPUT ACCEPT #REJECT
	iptables -P OUTPUT ACCEPT
	#!/bin/bash
	# Alex Alexander (wired) <alex.alexander@gmail.com>
	# http://www.linuxized.com
	#
	# this script makes sure your .mozilla folder is in tmpfs and constantly syncs it
	# with a folder on your hdd so you won't lose anything :)
	# for more details on how it works visit my blog in the link above.
	#
	# for this to have any meaning, the MOZTMPFS folder must be on tmpfs
	# i.e. to make /var/tmp a tmpfs folder, add the following in /etc/fstab