strange fps drops, stutters, perfomance issues

so i've made a modpack, but it seems to try to eat all of my ram, no matter how much i give, it's always not enough. i've downloaded spark by the advice from chat, but can't figure out how to use it. pls help
10 Replies
Golden
Golden2d ago
hey i get the same issue and i think it may have happened after i updated my amd driver, i enable the DH and it stutters a lot but when i disable it, everything is fine, do yuo use amd drivers too? and have u just updated?
Underdog
UnderdogOP2d ago
i have nvidia, and even if i disable dh, the ram is still been eated
Golden
Golden2d ago
ah ok well im gonna try to revert my drivers hope ur issue gets solved
Underdog
UnderdogOP2d ago
same well, now i've tried to open the chest and my world just broke. let me upload it to youtube'
Huyền f
Huyền f2d ago
all you need to do is enter the world, play for 20 mins then run /spark profiler stop it will upload the profile on a site, copy the link and share it
Underdog
UnderdogOP2d ago
ok, gimme 20 mins lol, when im opening a chest i got crashed
Allium
Allium2d ago
message.txt uploaded to mclo.gs
Uploaded by jjjrogel
Underdog
UnderdogOP2d ago
ok, grok was useful for once. The crash is caused by a compatibility issue in the OptiGUI mod (version 2.3.0-beta.7). It appears to be compiled against an older version of the kotlinx-datetime library (likely 0.6.x or earlier), where the Clock.System class is defined in kotlinx.datetime. However, your installed Fabric Language Kotlin mod (version 1.13.5+kotlin.2.2.10) bundles kotlinx-datetime 0.7.1, which introduced breaking changes by moving Clock and Instant (including Clock.System) to the standard Kotlin library (kotlin.time) instead. This mismatch results in the NoClassDefFoundError when OptiGUI tries to access the missing class during GUI rendering (specifically in its DateSelector for handling date-based texture replacements, like seasonal or event-based GUIs). it says so i downgraded kotlin and now chest can be opened

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