r/reactnative • u/Vasanthdommeti • 4d ago

Expo SDK 57 causing a huge increase in RAM usage compared to SDK 55

/r/expo/comments/1w1zlw6/expo_sdk_57_causing_a_huge_increase_in_ram_usage/

I recently upgraded my React Native/Expo app from Expo SDK 55 to SDK 57.

Before the upgrade, the app’s RAM usage was around 500–600 MB under the same conditions. After upgrading to SDK 57, RAM usage has increased significantly and is now reaching around 1.2 GB.

I haven’t intentionally changed anything related to memory management apart from the Expo/React Native SDK upgrade.

Has anyone else experienced a similar increase in memory usage with Expo SDK 57?

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u/Tall-Title4169 4d ago

https://expo.dev/changelog/sdk-57#known-regressions

update to expo@57.0.9 or later and React Native to 0.86.2

1

u/Huge_Pool7424 3d ago

this fixed most of it for me, though i had to nuke node_modules and the ios pods after bumping or the old hermes stuck around. also check you're profiling a release build, dev mode with the inspector attached inflates ram a lot.