mallipeddi’s gists

mallipeddi / gist:24bd367932d6259fedcb

Created January 8, 2015 01:50

go pprof helper script

	#!/bin/bash

	BINARY=$1
	HOST=$2
	PORT=$3
	DURATION=$4

	echo "Forwarding port..."
	ssh -t -t -L$PORT:localhost:$PORT $HOST &
	SSH_PID=$!

mallipeddi / gist:8447745

Created January 16, 2014 00:44

MBA Retina Mavericks 10.9 crash (happens once every week)

	Date/Time: 2014-01-14 22:26:18 -0800
	OS Version: 10.9.1 (Build 13B42)
	Architecture: x86_64
	Report Version: 18

	Event: Sleep Wake Failure
	Steps: 0

	Hardware model: MacBookPro10,2
	Active cpus: 4

mallipeddi / Main.sublime-menu

Last active December 26, 2015 06:58

Multiple custom layouts for SublimeText editor

	[{"id":"view",
	"children":[{
	"id":"layout",
	"children":[
	{"command":"set_layout","caption":"Custom Grid - 3 col","args":{"cols":[0,0.33,0.67,1],"rows":[0,0.5,1],"cells":[[0,0,1,2],[1,0,2,2],[2,0,3,1],[2,1,3,2]]}},
	{"command":"set_layout","caption":"Custom Grid - 2 col","args":{"cols":[0,0.5,1],"rows":[0,0.5,1],"cells":[[0,0,1,2],[1,0,2,1],[1,1,2,2]]}}
	]
	}]
	}]

mallipeddi / gist:5923494

Last active December 19, 2015 08:09

yappi overhead is proportional to the number of function calls in the codepath. So yappi could penalize some code paths more than some other code paths.

	import yappi
	import time

	yappi.set_clock_type("cpu")

	def foo(n):
	s = 0
	for i in xrange(n):
	s += n*n

mallipeddi / smem_test.py

Created April 25, 2013 00:27

Playing around with smem output.

	#!/usr/bin/env python

	"""
	smem_test.py - test smem's USS/PSS/RSS values

	More info on smem: http://www.selenic.com/smem/

	Sample run:

	# ./smem_test.py

mallipeddi / gist:3173138

Created July 24, 2012 22:38

Using oprofile

	sudo opcontrol --start-daemon
	sudo opcontrol --shutdown
	sudo opcontrol --status

	sudo opcontrol --vmlinux=/usr/lib/debug/lib/modules/2.6.18-164.el5debug/vmlinux

	sudo opcontrol --start --callgraph=5
	sudo opcontrol --stop
	sudo opcontrol --dump
	sudo opcontrol --reset

mallipeddi / gist:3154145

Created July 21, 2012 01:21

RHEL5 - Adding debuginfo yum repo & installing debug kernel image

	#
	# Follow instructions from the website below and add rhel5-debuginfo.repo to yum repos list (if not exists)
	# http://le-huy.blogspot.com/2011/01/using-debuginfo-packages-in-redhat.html
	#

	[root@localhost ~]# cat /etc/yum.repos.d/rhel-debuginfo.repo
	[rhel-debuginfo]
	name=Red Hat Enterprise Linux $releasever - $basearch - Debug
	baseurl=ftp://ftp.redhat.com/pub/redhat/linux/enterprise/$releasever/en/os/$basearch/Debuginfo/
	enabled=0

mallipeddi / pmp-pstack-el5.sh

Last active October 7, 2015 03:58

Poor Man's Profiler w/ pstack output on RHEL5

	#!/bin/bash
	nsamples=$2
	sleeptime=$3
	pid=$1

	for x in $(seq 1 $nsamples)
	do
	pstack $pid && echo "--eos--"
	sleep $sleeptime
	done \| \

mallipeddi / README

Created November 18, 2010 12:13

OpenVPN setup - server on Ubuntu & Tunnelblick on OS X (Snow Leopard)


	# install openvpn
	sudo apt-get install -y openvpn

	# NAT 192.168.99.1/2 subnet <-> eth0 (interface on server)
	sudo modprobe iptable_nat
	echo 1 \| sudo tee /proc/sys/net/ipv4/ip_forward
	sudo iptables -t nat -A POSTROUTING -s 192.168.99.1/2 -o eth0 -j MASQUERADE

	# generate secret key; scp this key to the client later

mallipeddi / ec2-ebs-bonnie++.txt

Created September 22, 2010 06:30

	/mnt/bonnie - LVM striped over 4 ephemeral

	Version 1.03c ------Sequential Output------ --Sequential Input- --Random-
	-Per Chr- --Block-- -Rewrite- -Per Chr- --Block-- --Seeks--
	Machine Size K/sec %CP K/sec %CP K/sec %CP K/sec %CP K/sec %CP /sec %CP
	db_experimen 30000M 59364 99 221719 42 94578 15 57870 99 303915 16 407.4 0
	------Sequential Create------ --------Random Create--------
	-Create-- --Read--- -Delete-- -Create-- --Read--- -Delete--
	files /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP
	16 10583 38 +++++ +++ 6411 10 10067 35 +++++ +++ 5363 9

Harish M mallipeddi