Celsius recent court filings provided a terrible and arguably avoidable loss of privacy for many of its customers, and will likely have chilling ripple effects for a long time to come. The goal of this presentation-turned-writeup is to give some context so that the reader can understand the consequences of such incidents and where to find more detailed information in order to mitigate such risks, and the tradeoffs that entails.
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Latency Comparison Numbers (~2012) | |
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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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/** | |
* D Holbrook | |
* | |
* Code Club: PO1 | |
* | |
* (*) Define a binary tree data structure and related fundamental operations. | |
* | |
* Use whichever language features are the best fit (this will depend on the language you have selected). The following operations should be supported: | |
* | |
* Constructors |
emacs --daemon
to run in the background.
emacsclient.emacs24 <filename/dirname>
to open in terminal
NOTE: "M-m and SPC can be used interchangeably".
- Undo -
C-/
- Redo -
C-?
- Change case: 1. Camel Case :
M-c
2. Upper Case :M-u
- Lower Case :
M-l