Oct 16 2010
- 04/10/2011 - Updated application.js and application.rb thanks to @rebo's comments
In this article, I will walk through some simple steps to get a [demo app][2] up and running with [Backbone.js][3] and [Sinatra][4] on [Heroku][5].
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 |
# this forces dpkg not to call sync() after package extraction and speeds up install | |
RUN echo "force-unsafe-io" > /etc/dpkg/dpkg.cfg.d/02apt-speedup | |
# we don't need and apt cache in a container | |
RUN echo "Acquire::http {No-Cache=True;};" > /etc/apt/apt.conf.d/no-cache |