[Feature]: CPU/load fallback for unrooted Android

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• This is a feature request, not a bug report or support question.

Component

Agent

Description

Let the agent report CPU and load on unrooted Android (Termux), where /proc/stat and /proc/loadavg are SELinux-denied.

Two fallbacks that work from the app sandbox today:

• CPU from per-core /sys/devices/system/cpu/cpu*/cpufreq/stats/time_in_state (sample twice, % of max capacity).
• Load from the sysinfo() syscall instead of /proc/loadavg.

Motivation / Use Case

I run beszel-agent 0.19.0 on two unrooted phones (Galaxy S23 SM-S911B Android 16, Huawei DBY-W09) under Termux. Everything works except CPU (stuck 0%) and load (bogus), because the app UID gets permission denied on /proc/stat and /proc/loadavg. HOST_PROC can't help, there is no other proc to point at.

I worked around it externally: a tiny helper sampling time_in_state reads 32.7% idle, 94.3% loaded on the Samsung, and toybox uptime gives live load there. Would be nice if the agent just did this itself when cpu.Times() comes back empty.

Describe how you would like to see this feature implemented

If cpu.Times() errors or returns all zeros, fall back to time_in_state deltas using the existing lastCpuTimes cache, and try unix.Sysinfo for load when /proc/loadavg is unreadable.

Note: time_in_state % means "% of max capacity", not classic CPU%, so it probably wants a label note in the UI.

Alternative if you prefer it: both phones have Shizuku, and rish -c 'cat /proc/stat' returns real counters from Termux. Happy to test whatever direction you pick on both devices.

Screenshots

No response

Category

Metrics

Affected Metrics

CPU, Load Average