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Latency Comparison Numbers | |
-------------------------- | |
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 |
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#!/bin/bash | |
# A simple script to backup an organization's GitHub repositories. | |
GHBU_BACKUP_DIR=${GHBU_BACKUP_DIR-"github-backups"} # where to place the backup files | |
GHBU_ORG=${GHBU_ORG-"autographer"} # the GitHub organization whose repos will be backed up | |
GHBU_API=${GHBU_API-"https://api.github.com"} # base URI for the GitHub API | |
GHBU_GITHOST=${GHBU_GITHOST-"<CHANGE-ME>.github.com"} # the GitHub hostname (see comments) | |
# I recommend using an API token so it is easily trackable and removable. | |
# Note that you MUST have SSH keys for a user with the access to all repos set up |
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#!/bin/bash | |
# s3-to-AWStat | |
# Copyright 2013 Xavier Decuyper | |
# http://www.savjee.be | |
# | |
# Permission is hereby granted, free of charge, to any person obtaining | |
# a copy of this software and associated documentation files (the | |
# "Software"), to deal in the Software without restriction, including | |
# without limitation the rights to use, copy, modify, merge, publish, |
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#!/bin/bash | |
# s3-to-AWStat | |
# Copyright 2013 Xavier Decuyper | |
# http://www.savjee.be | |
# | |
# Permission is hereby granted, free of charge, to any person obtaining | |
# a copy of this software and associated documentation files (the | |
# "Software"), to deal in the Software without restriction, including | |
# without limitation the rights to use, copy, modify, merge, publish, |