High CPU usage in IDLE on Linux Kubuntu 25.10 #24393

Description

Hello, I'm having problem with Opencode 1.14.25 ( deb package from opencode.ai website ) on Linux Kubuntu 25.10 with KDE Plasma 6.4.5 Wayland ( kernel version 6.17.0-22-generic ), hardware is ASUS Zephyrus Ryzen R9-5900HS / 32GB RAM / RTX 3060.
Application is taking 50-100% of one CPU core when doing completely nothing ( both OpenCode and opencode-cli ).
Also GUI is VERY SLOW even scrolling settings is very laggy. This is very weird.

I've installed flatpak version 1.4.0 and there is the same issue. Opencode settings menu i scrolling slowly.

Here is additional output from application console and from strace of process:

Application console:
Wayland session detected; using native Wayland first with X11 fallback (auto backend). Set OC_FORCE_X11=1 to force X11.
2026-04-26T12:01:13.613967Z INFO opencode_lib: Initializing app
/usr/bin/xdg-mime: 856: qtpaths: not found
2026-04-26T12:01:14.539737Z INFO opencode_lib: Spawning sidecar on http://127.0.0.1:44323
2026-04-26T12:01:14.539764Z INFO opencode_lib::cli: Spawning sidecar port=44323
2026-04-26T12:01:14.966812Z INFO opencode_lib::cli: Loaded shell environment with -il shell="/bin/bash" env_count=80
2026-04-26T12:01:14.967499Z INFO opencode_lib::cli: No CLI installation found, skipping sync
2026-04-26T12:01:16.419997Z INFO sidecar: opencode_lib::cli: opencode server listening on http://127.0.0.1:44323
2026-04-26T12:01:16.498168Z INFO opencode_lib::server: Server ready elapsed=1.530218473s
2026-04-26T12:01:16.498206Z INFO opencode_lib: Sidecar health check OK
2026-04-26T12:01:16.498216Z INFO opencode_lib: Loading task finished
2026-04-26T12:01:16.498231Z INFO opencode_lib: Loading done, completing initialisation
2026-04-26T12:01:26.970434Z INFO sidecar: opencode_lib::cli: ERROR 2026-04-26T12:01:26 +11100ms service=file.watcher dir=/home/user cause=TimeoutError: TimeoutError
2026-04-26T12:01:26.970467Z INFO sidecar: opencode_lib::cli: at orElse (/$bunfs/root/chunk-9gkgnmat.js:25:15739)
2026-04-26T12:01:26.970478Z INFO sidecar: opencode_lib::cli: at runLoop (/$bunfs/root/chunk-9gkgnmat.js:25:2045)
2026-04-26T12:01:26.970487Z INFO sidecar: opencode_lib::cli: at evaluate (/$bunfs/root/chunk-9gkgnmat.js:25:1435)
2026-04-26T12:01:26.970495Z INFO sidecar: opencode_lib::cli: at (/$bunfs/root/chunk-9gkgnmat.js:25:5589)
2026-04-26T12:01:26.970504Z INFO sidecar: opencode_lib::cli: at FileWatcher.state (/$bunfs/root/chunk-ezeh1gj7.js:11:34680)
2026-04-26T12:01:26.970513Z INFO sidecar: opencode_lib::cli: at FileWatcher.state (definition) (/$bunfs/root/chunk-myr22a1r.js:42:5587)
2026-04-26T12:01:26.970520Z INFO sidecar: opencode_lib::cli: at FileWatcher.init (/$bunfs/root/chunk-9gkgnmat.js:25:2045)
2026-04-26T12:01:26.970528Z INFO sidecar: opencode_lib::cli: at FileWatcher.init (definition) (/$bunfs/root/chunk-myr22a1r.js:42:7154)
2026-04-26T12:01:26.970536Z INFO sidecar: opencode_lib::cli: at InstanceBootstrap.init (/$bunfs/root/chunk-myr22a1r.js:255:7328)
2026-04-26T12:01:26.970545Z INFO sidecar: opencode_lib::cli: at InstanceBootstrap (/$bunfs/root/chunk-myr22a1r.js:255:7500) failed to subscribe

strace of OpenCode GUI PID all the time:
clock_gettime(CLOCK_MONOTONIC, {tv_sec=6452, tv_nsec=825694475}) = 0
clock_gettime(CLOCK_MONOTONIC, {tv_sec=6452, tv_nsec=825739314}) = 0
clock_gettime(CLOCK_MONOTONIC, {tv_sec=6452, tv_nsec=825784572}) = 0
clock_gettime(CLOCK_MONOTONIC, {tv_sec=6452, tv_nsec=825830039}) = 0
clock_gettime(CLOCK_MONOTONIC, {tv_sec=6452, tv_nsec=825878440}) = 0
clock_gettime(CLOCK_MONOTONIC, {tv_sec=6452, tv_nsec=825926422}) = 0
clock_gettime(CLOCK_MONOTONIC, {tv_sec=6452, tv_nsec=825998430}) = 0
clock_gettime(CLOCK_MONOTONIC, {tv_sec=6452, tv_nsec=826059402}) = 0
clock_gettime(CLOCK_MONOTONIC, {tv_sec=6452, tv_nsec=826113879}) = 0
clock_gettime(CLOCK_MONOTONIC, {tv_sec=6452, tv_nsec=826163467}) = 0
clock_gettime(CLOCK_MONOTONIC, {tv_sec=6452, tv_nsec=826209284}) = 0
clock_gettime(CLOCK_MONOTONIC, {tv_sec=6452, tv_nsec=826256498}) = 0
clock_gettime(CLOCK_MONOTONIC, {tv_sec=6452, tv_nsec=826300848}) = 0
clock_gettime(CLOCK_MONOTONIC, {tv_sec=6452, tv_nsec=826344709}) = 0
clock_gettime(CLOCK_MONOTONIC, {tv_sec=6452, tv_nsec=826388430}) = 0
clock_gettime(CLOCK_MONOTONIC, {tv_sec=6452, tv_nsec=826432571}) = 0
clock_gettime(CLOCK_MONOTONIC, {tv_sec=6452, tv_nsec=826476432}) = 0
clock_gettime(CLOCK_MONOTONIC, {tv_sec=6452, tv_nsec=826518826}) = 0
clock_gettime(CLOCK_MONOTONIC, {tv_sec=6452, tv_nsec=826564294}) = 0
clock_gettime(CLOCK_MONOTONIC, {tv_sec=6452, tv_nsec=826607526}) = 0
clock_gettime(CLOCK_MONOTONIC, {tv_sec=6452, tv_nsec=826649012}) = 0

strace of opencode-cli PID:
clock_gettime(CLOCK_MONOTONIC, {tv_sec=2641, tv_nsec=328799924}) = 0
futex(0x70660c100150, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x70660c0d4150, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x70660c0f0150, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x70660c0e0154, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x70660c118150, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x70660c0f8150, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x70660c110150, FUTEX_WAKE_PRIVATE, 1) = 1
clock_gettime(CLOCK_MONOTONIC, {tv_sec=2641, tv_nsec=329180076}) = 0
futex(0x70660c100154, FUTEX_WAKE_PRIVATE, 1) = 1
sched_yield() = 0
clock_gettime(CLOCK_REALTIME, {tv_sec=1777204926, tv_nsec=727359361}) = 0
clock_gettime(CLOCK_MONOTONIC, {tv_sec=2641, tv_nsec=329415655}) = 0
futex(0x70660c0e0154, FUTEX_WAKE_PRIVATE, 1) = 1
clock_gettime(CLOCK_REALTIME, {tv_sec=1777204926, tv_nsec=727523141}) = 0
futex(0x70660c01d008, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x70660c01d008, FUTEX_WAKE_PRIVATE, 1) = 0
clock_gettime(CLOCK_MONOTONIC, {tv_sec=2641, tv_nsec=331162346}) = 0
clock_gettime(CLOCK_MONOTONIC_COARSE, {tv_sec=2641, tv_nsec=330148303}) = 0
pread64(10, "18597444 86044 20391 14224 0 172"..., 256, 0) = 40
clock_gettime(CLOCK_MONOTONIC, {tv_sec=2641, tv_nsec=331474751}) = 0
clock_gettime(CLOCK_MONOTONIC, {tv_sec=2641, tv_nsec=331523851}) = 0
sched_yield() = 0
epoll_pwait2(4, [{events=EPOLLIN, data=0x5c083320000}], 1024, {tv_sec=0, tv_nsec=42952855}, [], 8) = 1
read(7, "\1\0\0\0\0\0\0\0", 8) = 8
clock_gettime(CLOCK_MONOTONIC_COARSE, {tv_sec=2641, tv_nsec=337148336}) = 0
clock_gettime(CLOCK_MONOTONIC_COARSE, {tv_sec=2641, tv_nsec=337148336}) = 0
clock_gettime(CLOCK_MONOTONIC, {tv_sec=2641, tv_nsec=338654209}) = 0
clock_gettime(CLOCK_MONOTONIC, {tv_sec=2641, tv_nsec=338701493}) = 0
clock_gettime(CLOCK_MONOTONIC, {tv_sec=2641, tv_nsec=338746751}) = 0
clock_gettime(CLOCK_MONOTONIC, {tv_sec=2641, tv_nsec=338801577}) = 0
clock_gettime(CLOCK_MONOTONIC_COARSE, {tv_sec=2641, tv_nsec=337148336}) = 0
clock_gettime(CLOCK_MONOTONIC, {tv_sec=2641, tv_nsec=338918912}) = 0
futex(0x70660c0d4150, FUTEX_WAKE_PRIVATE, 1) = 1
clock_gettime(CLOCK_MONOTONIC, {tv_sec=2641, tv_nsec=339050007}) = 0

Plugins

No response

OpenCode version

1.14.25

Steps to reproduce

No response

Screenshot and/or share link

btop output:
Pid: Program: Command: Threads: User: MemB Cpu%
21028 OpenCode /usr/bin/OpenCode 41 ****** 253M ⣀⣀⣀⣀⣀ 5,9
21168 opencode-cli /usr/bin/opencode-cli --print-logs --log-level WARN serve --hostname 127.0.0 24 ****** 523M 0,0

top output:

PID UŻYTK. PR NI WIRT REZ WSP S %CPU %PAM CZAS+ KOMENDA
21028 ****** 20 0 72,0g 270168 206380 R 90,7 0,8 4:39.33 OpenCode
21168 ****** 20 0 71,8g 519000 53940 S 2,0 1,6 3:13.35 opencode-cli

PID UŻYTK. PR NI WIRT REZ WSP S %CPU %PAM CZAS+ KOMENDA
30379 ****** 20 0 72,0g 302376 195224 S 72,5 0,9 0:17.13 OpenCode
30528 ****** 20 0 72,0g 503512 69448 S 57,9 1,6 0:57.14 opencode-cli

Operating System

Kubuntu 25.10

Terminal

Konsole