If I wanted to port a Go library that uses Goroutines, would Scala be a good choice because its inbox/akka framework is similar in nature to coroutines?

Background: While optimizing some Pascal code with embedded assembly language, I noticed an unnecessary MOV instruction, and removed it. To my surprise, removing the un-necessary instruction caused my program to slow down. I found that adding arbitrary, useless MOV instructions increased performance even further. The effect is erratic, and changes based on execution order: the same junk instructio

For example, I recently came across this in the linux kernel: /* Force a compilation error if condition is true */ #define BUILD_BUG_ON(condition) ((void)sizeof(char[1 - 2*!!(condition)])) So, in your code, if you have some structure which must be, say a multiple of 8 bytes in size, maybe because of some hardware constraints, you can do: BUILD_BUG_ON((sizeof(struct mystruct) % 8) != 0); and it won

A typical situation where you encounter strict aliasing problems is when overlaying a struct (like a device/network msg) onto a buffer of the word size of your system (like a pointer to uint32_ts or uint16_ts). When you overlay a struct onto such a buffer, or a buffer onto such a struct through pointer casting you can easily violate strict aliasing rules. So in this kind of setup, if I want to sen

That's referring to "variable integer encoding", where the number of bits used to store an integer when serialized is not fixed at 4 bytes. There is a good description of varint in the protocol buffer documentation. It is used in encoding Google's protocol buffers, and you can browse the protocol buffer source code. The CodedOutputStream contains the exact encoding function WriteVarint32FallbackTo