1.14 or 1.13 - import libs is slower than 1.12 ? (test)

[prem111]

Hi. I noticed that the library imports slower in version 1.13. What is it caused by? I am using the unstable version.

Code: Select all

v.1.12:

>>> time.ticks_ms();import uasyncio;time.ticks_ms()
2008736
2008754

sys.path.append('libs')
>>> time.ticks_ms();from system_devices import *;time.ticks_ms()
2068585
2069417

v.1.13

>>> time.ticks_ms();import uasyncio;time.ticks_ms()
21461
21649

>>> time.ticks_ms();from system_devices import *;time.ticks_ms()
49162
50984

[stijn]

Which libraries, and how did you measure this exactly?

[jimmo]

And which board/port are you using?

The ESP32 and ESP8266 ports are very sensitive to code location changes due to caching effects and architectural issues. I see quite dramatic speed differences from just re-arranging code that is otherwise functionally identical.

[prem111]

Board is esp32. But it is like that with every boot. The difference can be seen when importing e.g. uasyncio.

[jimmo]

How did you measure it? How much difference is there?

Note that in 1.13 vs 1.12 would be a different version of uasyncio too (v3 vs v2).

[prem111]

in version 1.13 or 1.14 it is just as slower when importing the same libraries. nobody suggested that it was faster on 1.12?

Code: Select all

v.1.12:

>>> time.ticks_ms();import uasyncio;time.ticks_ms()
2008736
2008754

sys.path.append('libs')
>>> time.ticks_ms();from system_devices import *;time.ticks_ms()
2068585
2069417

v.1.13

>>> time.ticks_ms();import uasyncio;time.ticks_ms()
21461
21649

>>> time.ticks_ms();from system_devices import *;time.ticks_ms()
49162
50984

[prem111]

I noticed that the more files there are (even without imports) in the filesystem, the slower it works

[Roberthh]

Especially LFS is slow

[prem111]

Ok, there was a problem here, fat works much faster. I haven't noticed that as of 1.13, littlefs is created by default. Thank you for your answer.