iand

Some notes on why Go works for me and why it might work for you if you're looking for another language to add to your repetoire. Goes without saying that this reflects my personal taste.

Go features that I particularly like

• Multicore is the future so I like that Go has concurrency built right into the core. Goroutines and channels provide a very accessible metaphor for thinking about concurrent programming. They're supported by language features that really make Go shine in this area. The select statement, for example, makes it easy to listen to and synchronise events from different concurrent threads.
• Provides both pointers and value types, but the pointers are safe and managed. Automatic memory management means its safe to return a pointer to a local variable.
• Interfaces in Go are smooth and unobtrusive. They automatically apply to anything with the right function signature so you can define interfaces that are satisfied by 3rd party code without you having to change it.
• Errors are signale

jboner

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