Analyzing PostgreSQL log insert performance

The goal of this test is to see how PostgreSQL behaves with heavy insert load of logs.The PostgreSQL (15.8 (Debian 15.8-0+deb12u1)) is running within KVM VM with 2 cores and further restricted via cgroupv2 cpu.max parameter set to “25 100“,... Read more

Analyzing Elasticsearch log insert performance

The goal of this test is to see how Elasticsearch behaves with heavy insert load of logs.The Elasticsearch (8.15.3) is running within KVM VM with 2 cores and further restricted via cgroupv2 cpu.max parameter set to “25 100”, to give... Read more

Controling Linux resource usage via cgroups v2

Create a cgroup Assign an existing process to cgroup Limit cpu usage to half of an core Pin process to two cores Read more

Add Arm64 dependencies into Amd64 docker build image

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Monitoring Linux WiFi signal using CLI

Network Manager IW Read more

Sharing Linux serial port over network

On server On client Read more

Exposing Linux camera over network

Camera server Client Read more

Change NetworkManager connection routing cost

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Tapping and capturing screen on Android via ADB

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Listing PKCS11 keys using ssh-keygen

To list keys exposed via PKCS11 provider usable with SSH, execute the following command: Read more