esp8266 chip- Framework taking 91% of max firmware size on 64bit systems a jump from about 78% on 32 bit

[tichaonax]

I am experiencing a new problem possibly due to data types for long and pointers sizes between 32bit and 64bit systems.

This is resulting in a bigger firmware size on 64bit systems leaving no room for the actual project particularly on esp8266 unit

I do not know if there is any optimization that can be done but I am having to stop using the esp8266 and move to esp32 chip which has more memory to circumvent this issue.

Please take a look at https://docs.oracle.com/cd/E19205-01/819-5265/bjami/index.html

to see data size comparison, I think the long and pointer are killing us.

[proddy]

compiling for Arduino (whether it's the ESP8266 or ESP32) is always 32-bit, using gcc. I think the problem is the size of SPIFFS and not the program size since you're trying to serialize 8 byte values into JSON (your time_t's). I also see you're using int's which uses 3 bytes. It's better to use uint8_t for single unsigned bytes and uint32_t for longs.

To make it fit you could adjust the partitions (Rick shows how in the README) to allocate more of the flash space.

I would also strongly recommend to switch to ESP32's if you can. The ESP8266 is about 8 years old now and starting to age, and the ESP32's have so much headroom for the same price. The web UI will be so much responsive too.

[tichaonax]

Will give it a try thanks!

[tichaonax]

It did not help much. But something happened the framework alone used to compile to about 78% a month ago now its at 91%. The only change is library updates.

[tichaonax]

I disabled PROGMEM and now it fits, not sure what other problems I will run into.

[proddy]

Ok so if I get this right, a few weeks ago building on ESP8266 worked fine but now the image size is too large? esp8266-react hasn't been modified so it's most likely the external libraries, including the latest arduino core. If that's the case you can modify the platformio.ini to go back and use the previous versions, e.g. platform = espressif8266@2.6.3 will use the older arduino core 2.7.4. See if that makes a difference to the image size.

[rjwats]

I built master a few days ago and it was up in the 90% range on esp8266.... honestly can't remember if that is normal or not because it's been so long since I've since i've actively used it. Poddys suggestion of downgrading the pio libs should help determine I'd it's a lib change which caused it. Do you still target 8266 proddy?

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On Sat, 28 Aug 2021, 10:19 Proddy, ***@***.***> wrote: Ok so if I get this right, a few weeks ago building on ESP8266 worked fine but now the image size is too large? esp8266-react hasn't been modified so it's most likely the external libraries, including the latest arduino core. If that's the case you can modify the platformio.ini to go back and use the previous versions, e.g. platform = ***@***.*** will use the older arduino core 2.7.4. See if that makes a difference to the image size. — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub <#254 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AAKE4VFPCML6Y53KVUICSG3T7CS25ANCNFSM5CZPECYA> . Triage notifications on the go with GitHub Mobile for iOS <https://apps.apple.com/app/apple-store/id1477376905?ct=notification-email&mt=8&pt=524675> or Android <https://play.google.com/store/apps/details?id=com.github.android&referrer=utm_campaign%3Dnotification-email%26utm_medium%3Demail%26utm_source%3Dgithub>.

[proddy]

Do you still target 8266 proddy?

Nope, I'm exclusive ESP32 now. Made the switch a year ago. I was spending too much time tweaking my code to make it fit into the ESP8266's 4MB ram. And an ESP32 is only like 4 euros now. https://github.com/emsesp/EMS-ESP32/tree/dev

[tichaonax]

It used to be 78% so something did happen.

[tichaonax]

In June l had a branch that compiled to 78%. Now the same branch compiles to 91% looks there might have been some changes in Arduino libraries or something