start new:
tmux
start new with session name:
tmux new -s myname
Latency Comparison Numbers (~2012) | |
---------------------------------- | |
L1 cache reference 0.5 ns | |
Branch mispredict 5 ns | |
L2 cache reference 7 ns 14x L1 cache | |
Mutex lock/unlock 25 ns | |
Main memory reference 100 ns 20x L2 cache, 200x L1 cache | |
Compress 1K bytes with Zippy 3,000 ns 3 us | |
Send 1K bytes over 1 Gbps network 10,000 ns 10 us | |
Read 4K randomly from SSD* 150,000 ns 150 us ~1GB/sec SSD |
#!/bin/bash | |
# bash generate random alphanumeric string | |
# | |
# bash generate random 32 character alphanumeric string (upper and lowercase) and | |
NEW_UUID=$(cat /dev/urandom | tr -dc 'a-zA-Z0-9' | fold -w 32 | head -n 1) | |
# bash generate random 32 character alphanumeric string (lowercase only) | |
cat /dev/urandom | tr -dc 'a-z0-9' | fold -w 32 | head -n 1 |
Hey! I saw this has been indexed by the search engines. It is a first draft of a post I ended up publishing on my blog at: Scaling PostgreSQL With Pgpool and PgBouncer
Thanks for stopping by!
Look at LSB init scripts for more information.
Copy to /etc/init.d
:
# replace "$YOUR_SERVICE_NAME" with your service's name (whenever it's not enough obvious)
git ls-files -z | xargs -0n1 git blame -w | perl -n -e '/^.*\((.*?)\s*[\d]{4}/; print $1,"\n"' | sort -f | uniq -c | sort -n |
from flask import Flask, render_template | |
app = Flask(__name__) | |
@app.route('/') | |
@app.route('/index') | |
def index(chartID = 'chart_ID', chart_type = 'bar', chart_height = 350): | |
chart = {"renderTo": chartID, "type": chart_type, "height": chart_height,} | |
series = [{"name": 'Label1', "data": [1,2,3]}, {"name": 'Label2', "data": [4, 5, 6]}] | |
title = {"text": 'My Title'} |
{ | |
"Statement": [ | |
{ | |
"Sid": "PackerSecurityGroupAccess", | |
"Action": [ | |
"ec2:CreateSecurityGroup", | |
"ec2:DeleteSecurityGroup", | |
"ec2:DescribeSecurityGroups", | |
"ec2:AuthorizeSecurityGroupIngress", | |
"ec2:RevokeSecurityGroupIngress" |