Performance tests

Performance SPI tests (ssd1306 128x64 spi) as for 16 APR 2018

LCD: ssd1306 128x64 monochrome
MCU: Atmega328p Buffer: 128x64 monochrome

Test	ssd1306 direct API	ssd1306 gfx canvas (buffered)	ssd1306 nano engine (buffered)	Adafruit_SSD1306 (buffered)	U8G2 (buffered)
clear buffer/screen	2492us	390us	393us	388us	391us
send buffer	N/A	2769us	2053us	2693us	3543us
rect 32x32	305us	663us	163us	100us	171us
6x8 Hello, world!	328us	723us	674us	6448us	5651us
6x8 Hello, world! 2x size	2490us	2873us	N/A	6449us	N/A

Note: For all buffered (canvas) operations send buffer time should be added to get the result on LCD

LCD: ssd1306 128x64 monochrome
MCU: Atmega328p Buffer: 128x64 monochrome

Test	ssd1306 direct API	ssd1306 gfx canvas (buffered)	ssd1306 nano engine (buffered)	Adafruit_SSD1306 (buffered)	U8G2 (buffered)
clear buffer/screen	37868us	390us	393us	388us	391us
send buffer	N/A	38101us	37788us	39581us	42196s
rect 32x32	4065us	663us	163us	100us	171us
6x8 Hello, world!	3279us	704us	672us	6449us	5651us
6x8 Hello, world! 2x size	14447us	2997us	N/A	6450us	N/A

Note: For all buffered (canvas) operations send buffer time should be added to get the result on LCD

LCD: ssd1351 128x128 16-bit color
CPU: BCM (Raspberry Pi 2+) Buffer: 128x128 monochrome for GFX canvas Buffer: 128x128 16-bit color for nano engine

Test	ssd1351 direct API	ssd1351 gfx canvas (buffered mono)	ssd1351 nano engine (buffered color)	Adafruit_SSD1351 (buffered)	U8G2 (buffered)
clear buffer/screen	78148us	1us	32us	not tested	not tested
send buffer	N/A	83617us	71918us	not tested	not tested
rect 32x32	12339us	3us	3us	not tested	not tested
6x8 Hello, world!	3532us	15us	38us	not tested	not tested
6x8 Hello, world! 2x size	13971us	41us	N/A	not tested	N/A