A terminal based graphical activity monitor inspired by gtop and vtop

panic: runtime error: index out of range

goroutine 6 [running]:
github.com/cjbassi/gotop/widgets.(*CPU).update(0xc42000afc0)
	/home/cjbassi/go/src/github.com/cjbassi/gotop/widgets/cpu.go:52 +0x3c9
created by github.com/cjbassi/gotop/widgets.NewCPU
	/home/cjbassi/go/src/github.com/cjbassi/gotop/widgets/cpu.go:35 +0x2cc

Need to fix the following issues caused by gopsutil on OSX:

• [x] temperatures widget doesn't work
• [x] CPU percentages only work when building from source (cross compiling doesn't work)
  • link to issue
  • caused by using cgo
• [x] getting process info takes a long time and is CPU intensive
  • link to issue

I don't have a Mac to test on so help is appreciated.

This was obviously done on purpose, as the definition of Error() throws a panic at the end. What drove this design decision, rather than gracefully handling the error?

On both Mac and Linux, I can't run gotop for more than 24 hours because -- whether due to a sleep/resume or some other random condition -- gotop inevitably receives a value it doesn't like, raises an Error, and panics out. On Linux, this appears to happen most with the net widget; maybe when my wireless goes down temporarily? I can't tell. But I'm baffled why you wrote the application to panic when gotop can't interpret a value.

See the image:

• The output of uname -a

Darwin november 17.6.0 Darwin Kernel Version 17.6.0: Tue May 8 15:22:16 PDT 2018; root:xnu-4570.61.1~1/RELEASE_X86_64 x86_64

• Terminal shell (like zsh or bash)

bash

• Terminal emulator (like iTerm or gnome terminal)

iTerm

• Using tmux?

Nope

Some people have been having slow startups so I created an issue for it.

If you feel inclined to provide some debugging info and have the Go toolchain set up, you can:

go get github.com/cjbassi/gotop
# move into the repo
git checkout slow-startup
go run main.go

gotop should print some numbers. If gotop stays on a number for a while, let me know:

• which one it is
• how long it stays there
• what your OS is
• whether gotop does eventually display normally

Thanks!

Hi dev! So, I just updated my distro and this bug happen with gotop:

panic: runtime error: invalid memory address or nil pointer dereference [signal SIGSEGV: segmentation violation code=0x1 addr=0x38 pc=0x50f86f]

goroutine 12 [running]: github.com/cjbassi/gotop/src/widgets.(*Disk).update(0xc42000d2c0) /home/cjbassi/go/src/github.com/cjbassi/gotop/src/widgets/disk.go:90 +0x66f github.com/cjbassi/gotop/src/widgets.NewDisk(0x0) /home/cjbassi/go/src/github.com/cjbassi/gotop/src/widgets/disk.go:42 +0x195 main.initWidgets.func5() /home/cjbassi/go/src/github.com/cjbassi/gotop/main.go:214 +0x22 created by main.initWidgets /home/cjbassi/go/src/github.com/cjbassi/gotop/main.go:213 +0xda

Looks like its the same bug that happen with this guy: https://github.com/cjbassi/gotop/issues/39 Heres my distro info: Linux 4.14.52-1-MANJARO #1 SMP PREEMPT Tue Jun 26 15:24:31 UTC 2018 x86_64 GNU/Linux Shell: bash Terminal: urxvt I have tmux but im not using it to see gotop. gotop version 1.4.0.

Do I need to change the gotop code or inform manjaro devs?

Hello,

I'm testing gotop 1.3.0 ( gotop_1.3.0_linux_amd64.tgz ) I noticed on my EPYC Server it won't show any CPU in
the CPU widgets while is fine on my Intel boxes.

The box has 2 * 16C/32T CPUs installed.

getconf _NPROCESSORS_ONLN
64

• The output of uname -a

Linux ant 4.16.11-fw1 #1 SMP PREEMPT Tue May 22 21:17:26 CEST 2018 x86_64 AMD EPYC 7281 16-Core Processor AuthenticAMD GNU/Linux

• Terminal shell (like zsh or bash)

$ echo $SHELL
/bin/bash

• Terminal emulator (like iTerm or gnome terminal)

konsole -> ssh -> server ( cli )

• Using tmux?

No

Also k10temp is wrong on ZEN .. Each CPU has 4 dies and each die a temp meaning on 2 soket box we get 8 different temperatures not just one.

eg this:

k10temp-pci-00e3
Adapter: PCI adapter
temp1:        +20.5°C  (high = +70.0°C)

k10temp-pci-00d3
Adapter: PCI adapter
temp1:        +20.8°C  (high = +70.0°C)

k10temp-pci-00c3
Adapter: PCI adapter
temp1:        +23.5°C  (high = +70.0°C)

k10temp-pci-00fb
Adapter: PCI adapter
temp1:        +19.8°C  (high = +70.0°C)

k10temp-pci-00eb
Adapter: PCI adapter
temp1:        +20.5°C  (high = +70.0°C)

k10temp-pci-00db
Adapter: PCI adapter
temp1:        +20.2°C  (high = +70.0°C)

k10temp-pci-00cb
Adapter: PCI adapter
temp1:        +20.1°C  (high = +70.0°C)

k10temp-pci-00f3
Adapter: PCI adapter
temp1:        +19.0°C  (high = +70.0°C)

If you need more infos please let me know.

Regards

Data: Gotop version: 1.2.11 MacOS 10.12.6 Darwin Kernel Version 16.7.0: Tue Jan 30 11:27:06 PST 2018; root:xnu-3789.73.11~1/RELEASE_X86_64 x86_64

Shell is bash

Terminal is iTerm

Not using tmux

Error:

Error caught. Exiting program.

Issue with CPU percentages.

Diagnostics:
self.Count: 8
gopsutil.Counts(): 8
len(percents): 0
percents: []
self.interval: 1s

panic: 1

goroutine 15 [running]:
github.com/cjbassi/gotop/utils.Error(0x11841d7, 0xf, 0xc42001e4e0, 0x52)
	/home/cjbassi/go/src/github.com/cjbassi/gotop/utils/utils.go:30 +0x23f
github.com/cjbassi/gotop/widgets.(*CPU).update(0xc42000b020)
	/home/cjbassi/go/src/github.com/cjbassi/gotop/widgets/cpu.go:57 +0x532
created by github.com/cjbassi/gotop/widgets.NewCPU
	/home/cjbassi/go/src/github.com/cjbassi/gotop/widgets/cpu.go:38 +0x2d3

Required information:

• gotop version: 1.7.1
• The output of uname -a: Linux motherbase 4.20.1-arch1-1-ARCH #1 SMP PREEMPT Wed Jan 9 20:25:43 UTC 2019 x86_64 GNU/Linux
• Terminal shell (e.g. zsh or bash): Bash
• Terminal emulator (e.g. iTerm or gnome terminal): urxvt and Termine

The custom colorscheme doesnt work. I use the default.json as a base and save a file .json on .config/gotop and ok, if i run gotop -c name.json it opens gotop, but then it doesnt matter if i edit the values, ANYTHING i change on the numbers on fg, bars or anything it simply does no effect, it remains the same, the same colors as if i just type gotop on the terminal

I really like GoTop - I usually have it full screen on one of my monitors.

Would there be any way there could be a built-in clock widget to display time as my task bar is taken up by the GoTop terminal I have in maximum size?

Thanks!

Stack trace:

panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x38 pc=0x52108c]

goroutine 24 [running]:
github.com/cjbassi/gotop/src/widgets.(*Disk).update(0xc000244000)
	/build/go/src/github.com/cjbassi/gotop/src/widgets/disk.go:90 +0x60c
github.com/cjbassi/gotop/src/widgets.NewDisk(0x0)
	/build/go/src/github.com/cjbassi/gotop/src/widgets/disk.go:42 +0x177
main.initWidgets.func5()
	/build/go/src/github.com/cjbassi/gotop/main.go:252 +0x22
created by main.initWidgets
	/build/go/src/github.com/cjbassi/gotop/main.go:251 +0xdb

Analysis:

The return value of psDisk.Usage(Part.Mount) (disk.go:89) may include an error value. This value is ignored, and nil is returned as usage, which is immediately dereferenced.

With some printf debugging:

Testing usage of /var/lib/docker
usage={"path":"/var/lib/docker","fstype":"zfs","total":137729015808, [...]
err=<nil>

Testing usage of /var/lib/docker/zfs/graph/ff22819000f48b6f19cb17f41c389840cb3f0feb44de3aaffc6af0569ec7246f
usage=<nil>
err=permission denied
panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x38 pc=0x52141c]

Please give the following info:

• The output of uname -a: Linux altenberg 4.14.74 #1-NixOS SMP Thu Oct 4 00:01:00 UTC 2018 x86_64 GNU/Linux
• Any relevenat hardware info: regular desktop system
• Terminal shell (like zsh or bash): zsh
• Terminal emulator (like iTerm or gnome terminal): iTerm
• tmux version if using tmux: n/a

• gotop version (gotop -V): gotop v4.0.0 (20200607T220652)
• The output of uname -a: Linux UD-TinyPiNAS 4.19.127-1-MANJARO-ARM #1 SMP PREEMPT Thu Jun 11 06:12:53 CDT 2020 aarch64 GNU/Linux
• Terminal emulator (e.g. iTerm or gnome terminal): Kitty
• Any relevenat hardware info: Raspberry Pi 4 1 GB RAM
• Additional notes: gotop was installed from the AUR package gotop-bin using yay The RPI 4 is on my local network and being SSH'd onto
• Screenshot of gotop:

What happens is, although the RPI 4 has the function to measure the CPU temperature by running /opt/vc/bin/vcgencmd measure_temp nothing is shown. Also in the CPU field all of the processes show either NaN or +inf.

The temperature issue is already reported at issue #37. The CPU issue might be due to the architecture of the system because issue #104 shows that somebody using arch on a armv7 raspberry pi outputs CPU values different than NaN and inf, although claiming to be inconsistent with htop.

This is more of a question rather than an issue, but I could not find any answers on my own. The question is, what fonts does gotop require to show the graphs properly? I am on Arch and have installed a couple of font packages like noto-fonts and the ones that come with firefox but my gotop instance currently looks like this:

On Ubuntu the graphs are fine but I can't seem to figure out which font gotop needs in order to install it on Arch.

I have installed this program from sudo snap install gotop-brlin and when i exectute gotop this message show up bash: /usr/local/bin/gotop: cannot execute binary file: Exec format error

Required information:

• gotop version (gotop -V): 3.5.1
• The output of uname -a: Linux plasma 5.4.40-1-MANJARO #1 SMP PREEMPT Sun May 10 14:17:40 UTC 2020 x86_64 GNU/Linux
• Terminal emulator (e.g. iTerm or gnome terminal): Konsole
• Any relevenat hardware info:

$ nvidia-smi
Tue May 19 21:04:50 2020       
+-----------------------------------------------------------------------------+
| NVIDIA-SMI 440.82       Driver Version: 440.82       CUDA Version: 10.2     |
|-------------------------------+----------------------+----------------------+
| GPU  Name        Persistence-M| Bus-Id        Disp.A | Volatile Uncorr. ECC |
| Fan  Temp  Perf  Pwr:Usage/Cap|         Memory-Usage | GPU-Util  Compute M. |
|===============================+======================+======================|
|   0  GeForce GTX 680     Off  | 00000000:01:00.0 N/A |                  N/A |
| 32%   47C    P8    N/A /  N/A |    531MiB /  4034MiB |     N/A      Default |
+-------------------------------+----------------------+----------------------+
                                                                               
+-----------------------------------------------------------------------------+
| Processes:                                                       GPU Memory |
|  GPU       PID   Type   Process name                             Usage      |
|=============================================================================|
|    0                    Not Supported                                       |
+-----------------------------------------------------------------------------+



$ nvidia-settings -q gpucoretemp

  Attribute 'GPUCoreTemp' (plasma:0.0): 47.
    'GPUCoreTemp' is an integer attribute.
    'GPUCoreTemp' is a read-only attribute.
    'GPUCoreTemp' can use the following target types: X Screen, GPU.
  Attribute 'GPUCoreTemp' (plasma:0[gpu:0]): 47.
    'GPUCoreTemp' is an integer attribute.
    'GPUCoreTemp' is a read-only attribute.
    'GPUCoreTemp' can use the following target types: X Screen, GPU.


$ nvidia-settings -q gpucoretemp -t
47
47


$ nvidia-smi --query-gpu=temperature.gpu --format=csv,noheader,nounits
47

https://wiki.archlinux.org/index.php/NVIDIA/Tips_and_tricks#Displaying_GPU_temperature_in_the_shell

The nvidia temperature can probably be found in /proc too.

• tmux version if using tmux: Screen version 4.08.00 (GNU) 05-Feb-20

Also please copy or attach ~/.local/state/gotop/errors.log if it exists and contains logs: Does not exist

I opened gotop just for fun. I formatted /dev/sdd1 (mounted on /mnt/external in the screenshot below) freshly as a 1.8TB big hard drive. In the overview it cleary says it is used 0% and has 1 TB free. I expected it to round up to 2TB instead of down to 1TB.

Required information:

• gotop version (gotop -V): 3.5.0
• The output of uname -a: Linux astolfo 5.6.2-arch1-2 #1 SMP PREEMPT Sun, 05 Apr 2020 05:13:14 +0000 x86_64 GNU/Linux
• Terminal emulator (e.g. iTerm or gnome terminal): alacritty
• Any relevenat hardware info: the hard drive in question (sdd1) is 1.8TB of size
• tmux version if using tmux: -

Disk /dev/sdd: 1,84 TiB, 2000398934016 bytes, 3907029168 sectors
Disk model: WDC WD2003FZEX-0
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: gpt
Disk identifier: A2364232-5354-48A4-AF01-303C36AC45D2

Device     Start        End    Sectors  Size Type
/dev/sdd1   2048 3907028991 3907026944  1,8T Linux filesystem