Why is my computer slow right now?
One command that tells you exactly what's eating your CPU, memory, disk, and network — in plain English. Not top. Not 10 tools. One answer.
$ wtf
CPU ████████░░ 82%
Chrome 42.3%
node 8.1%
Slack 3.4%
MEM ███████░░░ 71% 11.4 GB / 16.0 GB
Chrome 4.2 GB
node 1.1 GB
Slack 800 MB
DSK
/dev/sda1 ██████░░░░ 58% 230 GB / 400 GB
NET
eth0 ↓ 1.2 MB/s ↑ 200 KB/s
────────────────────────────────────────────────────────────────
High CPU: Chrome is using 42% CPU
npm install -g @mightbeandrew/wtfcliwtf # full diagnosis
wtf --cpu --mem # CPU and memory only
wtf -v # verbose: top 10 processes, extra stats
wtf -j | jq '.cpu' # JSON output piped to jq
wtf -w 5 # live refresh every 5 seconds
wtf --no-color > out.txt # plain text to file| Flag | Description |
|---|---|
-v, --verbose |
More processes, extra detail |
-j, --json |
JSON output (pipe-friendly, no color) |
--no-color |
Strip ANSI colors |
--cpu |
CPU section only |
--mem |
Memory section only |
--disk |
Disk section only |
--net |
Network section only |
-t, --top <n> |
Top N processes per section (default: 5) |
-w, --watch [secs] |
Live refresh, default every 2s |
--version |
Print version |
-h, --help |
Show help |
top, htop, df, netstat — each shows one dimension. Nothing correlates them into a single human-readable diagnosis. wtf does.
MIT