zldrobit

System Performance

Sampling performance as top

perf top --sort comm,dso

Record performance

perf record --call-graph dwarf

Parse performance record

perf report --call-graph --sort comm,dso

See also

https://dev.to/franckpachot/linux-perf-top-basics-understand-the-316l

zldrobit

Vim

Description	Command
Delete a word in terminal mode	C-W .
Paste in terminal mode	C-W ""
Terminal normal mode	C-W N
Last inserted register	.
Go to the last edited location	`.
Go to the previous edited location	g;
Go to the next edited location	g,

zldrobit

convert .svg files to .png/.emf files

inkscape figure.svg --export-filename figure.emf

zldrobit

Apt proxy

Add

Acquire::http::proxy "socks5h://server:port"; 
Acquire::https::proxy "socks5h://server:port"; 

to a apt.conf.d file (like /etc/apt/apt.conf.d/12proxy)

see https://askubuntu.com/questions/35223/syntax-for-socks-proxy-in-apt-conf/1117259#1117259

zldrobit

# Windows gropu policy
https://www.thewindowsclub.com/cant-access-shared-folder-because-of-organizations-security-policies

# Samba root access
https://askubuntu.com/questions/28307/sharing-samba-folder-with-root-access

# Samba symlink
https://access.redhat.com/solutions/54407

# Samba mount

zldrobit

Run

sudo apt-get install xorgxrdp-hwe-18.04

see https://askubuntu.com/questions/1151344/blank-screen-when-connecting-via-remote-desktop-to-xubuntu-18-04-hosted-with-hy/1188516#1188516

zldrobit

Add

{
  "data-root": "$NEW_PATH"
}

to /etc/docker/daemon.json

see https://docs.docker.com/engine/reference/commandline/dockerd/#daemon-configuration-file

zldrobit

# execute following 2 lines
sudo nvidia-xconfig --enable-all-gpus
sudo nvidia-xconfig --cool-bits=4

# append following to ~/.profile
# set GPU fan speed                               
nvidia-settings -a "[gpu:0]/GPUFanControlState=1" 
nvidia-settings -a "[fan:0]/GPUTargetFanSpeed=100"
nvidia-settings -a "[fan:1]/GPUTargetFanSpeed=100"

zldrobit

yolov4

yolov4 tiny

zldrobit

Push gdbserver if there isn't

adb push path_to_gdbserver /data/local/tmp/gdbserver
run-as package_name mkdir -p /data/data/package_name/gdb/bin
cat /data/local/tmp/gdbserver | run-as package_name sh -c 'cat > /data/data/package_name/gdb/bin/gdbserver'
run-as package_name chmod 700 /data/data/package_name/gdb/bin/gdbserver

Run app manually on device