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What is an example of the simplest possible Socket.io example?
...may take a few minutes depending on the speed of your network connection / CPU / etc. To check that everything went as planned, you can look at the package.json file again.
$ cat package.json
{
"dependencies": {
"express": "~4.9.8",
"socket.io": "~1.1.0"
}
}
Create a file called serve...
Performant Entity Serialization: BSON vs MessagePack (vs JSON)
...becomes is your network overhead more or less constrained than your memory/cpu?
With regards to msgpack vs bson vs protocol buffers... msgpack is the least bytes of the group, protocol buffers being about the same. BSON defines more broad native types than the other two, and may be a better match...
The purpose of Model View Projection Matrix
...iform to the shader program, having set it up for the current model on the CPU.
– Tommy
Apr 6 '11 at 10:50
Hi Tommy, c...
What is a plain English explanation of “Big O” notation?
...f time
how website latency scales with the number of processing units in a CPU or GPU or computer cluster
how heat output scales on CPU dies as a function of transistor count, voltage, etc.
how much time an algorithm needs to run, as a function of input size
how much space an algorithm needs to run,...
Pass correct “this” context to setTimeout callback?
...or this case, for map(), for forEach(), etc., etc., using less code, fewer CPU cycles, and less memory. ***See: Misha Reyzlin's answer.
– HoldOffHunger
Oct 20 '17 at 17:06
ad...
Are arrays passed by value or passed by reference in Java? [duplicate]
... in the heap, which means that iterated lookup is much cheaper in terms of CPU time. A List does not guarantee contiguous storage.
– noisesmith
Dec 10 '13 at 18:34
...
How does Java Garbage Collection work with Circular References?
...e "root" set of places that are always considered "reachable", such as the CPU registers, stack, and global variables. It works by finding any pointers in those areas, and recursively finding everything they point at. Once it's found all that, everything else is garbage.
There are, of course, quite...
What's the difference between Task.Start/Wait and Async/Await?
...e another thread is doing the work, and that thread has been assigned to a CPU, so the work is actually being done. Maybe the work is being done by hardware and there is no thread at all. But surely, you say, there must be some thread in the hardware. No. Hardware exists below the level of thread...
Is there a REAL performance difference between INT and VARCHAR primary keys?
...oncerns in comments.
The setup was as follows:
Intel® Core™ i7-7500U CPU @ 2.70GHz × 4
15.6 GiB RAM, of which I ensured around 8 GB was free during the test.
148.6 GB SSD drive, with plenty of free space.
Ubuntu 16.04 64-bit
MySQL Ver 14.14 Distrib 5.7.20, for Linux (x86_64)
The tables:
c...
What's the point of having pointers in Go?
... reasons. Pointers allow control over memory layout (affects efficiency of CPU cache). In Go we can define a structure where all the members are in contiguous memory:
type Point struct {
x, y int
}
type LineSegment struct {
source, destination Point
}
In this case the Point structures are em...