[Question] Core 2.0 increased in size so much my code won't fit with (default) OTA Partition? (was using 1.0.6)

[Frtrillo]

Hardware:

Board	ESP32 Dev Module
Version/Date	1.0.6	2.0.0
IDE name	Arduino IDE		VSCode
Flash Frequency	80Mhz
PSRAM enabled	no
Upload Speed	115200
Computer OS	Windows 10

Description:

I ran my code with core 1.0.6 (94% size use) with default partition (as im using OTA HTTPUpdates).

So I went and updated core to 2.0 and with its increase in size I exceeded a bit the max. partition size.

I can upload my code of course if I change partition size to Huge APP (No OTA) but then I wouldn't be able to use HTTPUpdate( https://github.com/espressif/arduino-esp32/tree/master/libraries/HTTPUpdate)? Or is that only for Arduino IDE Updates and its different from HTTUpdates...

And If I try to use the other partition schemes my LittleFS code won't work

Debug Messages:

text section exceeds available space in board
The Sketch uses 1313501 bytes (100%) of the program storage space. The maximum is 1310720 bytes.
Global variables use 39536 bytes (12%) of dynamic memory, leaving 288144 bytes for local variables. The maximum is 327680 bytes.
Sketch too big; see https://support.arduino.cc/hc/en-us/articles/360013825179 for tips on reducing it.
Error compilando para la tarjeta ESP32 Dev Module.

[alorbach]

Facing the same problem, build with 1.0.4 before no problem with 2.0.0 I get this:

Sketch uses 2092697 bytes (106%) of program storage space. Maximum is 1966080 bytes.
Global variables use 62968 bytes (19%) of dynamic memory, leaving 264712 bytes for local variables. Maximum is 327680 bytes.
Sketch too big; see http://www.arduino.cc/en/Guide/Troubleshooting#size for tips on reducing it.
text section exceeds available space in board

[Jason2866]

A solution could be to use OTA partitions with different sizes. The bigger for the running firmware and the smaller to store a gzip version of the uploaded new firmware. This firmware is extracted and flashed on the fly over the old firmware.

[alorbach]

Interesting approach, any sample code or working samples?

[Speedy2k]

But the main question is why changing core version give so much bigger code?

[SuGlider]

Please check issue #5630
More at
#5630 (comment)

We are working to reduce binary size for next release 2.0.1.

In the issue #5630 you will see more details about how to test a beta version.

It is now better than 1.0.6 for several sketches.

[SuGlider]

This is solved by espressif/esp32-arduino-lib-builder#47
New sizes are better than in V1.0.6.
A draft core version for testing is in https://github.com/espressif/arduino-esp32/tree/mem-optimized
Next release 2.0.1RC1 will fix this binary size issue.