gtirloni

ollama/deepseek benchmarks

machine: macbook 14" m4 max, 36GB

prompt: "please write a short story about a geek trying to learn the c programming language in a forest"

deepseek-r1:1.5b

total memory used: 13GB

gtirloni

When you visit sites like reddit.com, they may show a native popup in Chrome asking you to login with your Google account(s).

To disable that, go to chrome://settings/content/federatedIdentityApi and click on Block sign-in prompts from identity services.

gtirloni

local wezterm = require 'wezterm'
local config = wezterm.config_builder()

-- broken
config.enable_wayland = false;

config.initial_cols = 220
config.initial_rows = 60
config.color_scheme = 'Thayer Bright (Gogh)'

gtirloni

Chrome + Wayland

After switching to Wayland (with an Intel iGPU on Fedora 39), I started experiencing extreme lag in Chrome.

Here is a workaround:

1. Go to chrome://flags
2. Search for "ozone" or "wayland"
3. Set "Preferred Ozone platform" to "auto"
4. Relaunch

gtirloni

lm_sensors and Nuvoton chips

My ASUS B760M motherboard and many others have a Nuvoton Super I/O chip used for controlling fans, monitoring temperature and other tasks.

Some of the temperature readings that the chip provides are not connected to any physical sensors. This caused bad readings, like reported by lm_sensors here:

$ sensors nct6798-*
nct6798-isa-0290
Adapter: ISA adapter

gtirloni

Flexible per-alert silences in Grafana

Overview

Certain expected behaviors in the infrastructure can cause alerts to fire unnecessarily, generating noise and contributing to alert fatigue.

For example, database backups can increase the number of disk operations beyond what is expected during business hours but they don't cause issues that require human actions because they usually run outside business hours.

If these events happen on specific time periods, they can be ignored programmatically.

gtirloni

Work profile with Google Chrome on Linux (GNOME)

The goal is to open a different profile for work-related URLs opened anywhere on the desktop.

Install Steps

1. Copy default-browser.sh to $HOME/bin (or somewhere else in your PATH)
2. Copy default-browser.desktop to $HOME/.local/share/applications
3. Update $HOME/.config/mimeapps.list with proper values (or create file from scratch)
4. Go to Settings > Default Applications and configure "Default Browser" for Web

gtirloni

git-blame shows what revision and author last modified each line of a file.

$ echo "this is a test" > test.txt
$ git add test.txt
$ git commit -m "first commit"
$ git blame test.txt
^d12054e (John Doe 2023-07-20 10:08:32 -0300 1) this is a test

gtirloni

1. Locate the snapshot in EC2 > Snapshots
2. Actions > Create volume from snapshot
3. Locate the new volume in EC2 > Volumes
4. Actions > Attach volume
5. Confirm volume is attached to instance (ls -l /dev/nvme1*)
6. Confirm volume has same UUID as the root disk (blkid)
7. Change volume UUID to avoid conflicts (uuidgen && xfs_admin -U GENERATED_UUID_HERE /dev/nvme1n1p1)
8. Confirm UUID was changed (blkdid)
9. Mount filesystem (mount -t xfs /dev/nvme1n1p1 /mnt)

gtirloni

[Unit]
Description=JupyterLab
After=network-online.target
Wants=network-online.target

[Service]
ExecStart=/usr/bin/jupyter lab --no-browser
Restart=on-failure
RestartSec=7
RestartPreventExitStatus=3