Hi

I've downloaded and installed the latest version on Visual Studio, and thought I would share some findings about compile times with the new shared core stuff.

The project is for Teensy 3.1/3.2. The aggregate project cpp file is 1400 lines. It uses these libraries:

#include <button.h>
#include <Metro.h>
#include <Audio.h>
#include <SPI.h>
#include <SD.h>
#include <SerialFlash.h>
#include <Wire.h>

The computer is an i7, Win10.

The results are as follows:

Build as debug

Shared cache first build 81 secs (having built another similar architecture project beforehand)
Shared cache subsequent builds 22 secs

Private cache first build 73 secs
Private cache subsequent builds 2 secs

Build as Release

Shared cache first build 85 secs (having built another similar architecture project beforehand)
Shared cache subsequent builds 16secs

Private cache first build 76 secs
Private cache subsequent builds 1.5 secs

Just sharing....

I guess it is an architecture thing.

Here's the results for a simple Blinky on an Uno, from clean:

Debug

Shared/1st 15
Shared subsequent 1.7

Private/1st 29
Private subsequent 1.7

Release

Shared/1st 15
Shared subsequent 1.6

Private/1st 17
Private subsequent 1.3

Then a subsequent shared/1st build is about 2 secs.

And I attach the results of verbose output for shared and non-shared for the more complex Teensy project used in my first test. This is just in release mode.

Again, just FYI really.

I noticed that the compile was remarkably faster but did not realize that it was by design.

I take it the default settings will yield the fastest results or must I go fiddle?