Very poor performance in minecraft[solved]

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tr1stan · Post by **tr1stan** » Sat Jul 24, 2021 10:36 am

When I add some vanilla tweaks resource packs, mainly bushy leaves and anything that adds block variation such as lower sides of blocks then when I enter a forest or a hilly place (the special textures get rendered in huge amount) my performance drops to 30 and keeps going down to around 15 over time. This happens without shaders and with small render distance. Without the pack I get easily hundreds of fps.

Minecraft version: 1.16.5
mods: optifine
Java versions: tried both 8 and 11
Also tried both opensource and proprietary driver for my amdgpu (AMD ATI Radeon RX 5700 XT)
On Windows: no performance issues at all with the same settings

dalto · Post by **dalto** » Sat Jul 24, 2021 1:18 pm

What are your java settings in minecraft? What are the rest of your cpu/ram specs?

Don't use the proprietary drivers with a 5700 XT. amdgpu should be what you want.

tr1stan · Post by **tr1stan** » Sat Jul 24, 2021 3:28 pm

CPU: Amd Ryzen 7 3700X (no iGPU)
32 GB RAM 3200 MHz DDR4

I use multimc minecraft client from the overlay jorgicio, the game is set to be able to allocate up to 4GB of ram, no other specific Java arguments set.

My make.conf:

Code: Select all

# These settings were set by the catalyst build script that automatically
# built this stage.
# Please consult /usr/share/portage/config/make.conf.example for a more
# detailed example.
COMMON_FLAGS="-march=native -O3 -pipe"
CFLAGS="${COMMON_FLAGS}"
CXXFLAGS="${COMMON_FLAGS}"
FCFLAGS="${COMMON_FLAGS}"
FFLAGS="${COMMON_FLAGS}"

MAKEOPTS="-j16 -l10"
EMERGE_DEFAULT_OPTS="--jobs=16 --load-average=10 --with-bdeps y"
PORTAGE_NICENESS=1

ACCEPT_LICENSE="-* @FREE"

FEATURES="binpkg-logs buildpkg cgroup collision-protect ipc-sandbox downgrade-backup network-sandbox unmerge-orphans fixlafiles"

VIDEO_CARDS="amdgpu radeonsi"
INPUT_DEVICES="libinput"

USE="-systemd  -cdr -a52 -css -cdparanoia -bluray -dvb -dvd -dvdr -cdda -cdinstall -smartcard -emboss -aqua -quicktime -coreaudio -ios -ipod -emacs -xemacs -latex -clamav -netfrc -gnome -connman -cdr -hddtemp -apache2 -neon -bluetooth\
        vulkan opengl libmpv alsa pulseaudio sound aac ogg elogind dga dri X xinerama xscreensaver networkmanager 7z 7zip samba dbus kde qt5 ffmpeg jpeg png gif gtk cups usb exif jack videos sound offensive lto joystick lm-sensors"

# NOTE: This stage was built with the bindist Use flag enabled
PORTDIR="/var/db/repos/gentoo"
DISTDIR="/var/cache/distfiles"
PKGDIR="/var/cache/binpkgs"

# This sets the language of build output to English.
# Please keep this setting intact when reporting bugs.
LC_MESSAGES=C

GRUB_PLATFORMS="efi-64"
QEMU_SOFTMMU_TARGETS="x86_64"
QEMU_USER_TARGETS="x86_64"

tr1stan · Post by **tr1stan** » Sat Jul 24, 2021 3:34 pm

I mean even if there are like 5 trees rendered the performance drops to 30 fps with the bushy leaves resource pack

tr1stan · Post by **tr1stan** » Fri Aug 06, 2021 10:45 pm

solved it by installing Iris shaders mod - fork of sodium, not only that fixes the bushy tree bug but also provides much better overall performance.

The problem must've been in using optifine.