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656x Faster JSON Parsing in Python with ijson

Faster JSON parsing is possible in Python
May 30, 2016 ~ Leo Petrazickis ~ 1 Comment

I identified a performance bottleneck in my team's Python code. It used the ijson package in a naive way. It's possible to achieve much faster JSON parsing.

Preserve bash history across multiple terminals and sessions

Preserve bash history in iTerm2
May 4, 2016 ~ Leo Petrazickis ~ Leave a comment

Is it possible to configure the terminal to preserve bash history? Yes, it's easy to configure bash so that it preserves history across sessions and tabs.

No meta description has been specified

May 2, 2016 ~ Leo Petrazickis ~ Leave a comment

How to set meta description in WordPress and satisfy the "No meta description has been specified, search engines will display copy from the page instead" warning

Datathon For Diabetes in Boston

April 29, 2016 ~ Leo Petrazickis ~ Leave a comment

This weekend I'm at the Datathon for Diabetes in Boston. The goal is to use publicly available data to generate an insightful analysis of diabetes.

Ottawa: Data Day 3.0 at Carleton

Carleton University coat of arms
March 22, 2016 ~ Leo Petrazickis ~ Leave a comment

On Tuesday March 29, I'll be demoing Data Scientist Workbench (DSWB) at Data Day 3.0 in Ottawa for the Carleton University Institute of Data Science.

Spark Summit East 2016

February 9, 2016 ~ Leo Petrazickis ~ Leave a comment

Next week I'll be demoing Data Scientist Workbench at Spark Summit East (official site) in New York. Polong Lin will be there with me. Come by the expo floor next Wednesday and Thursday and chat with us.

Datapalooza Seattle on Feb 9-11

February 2, 2016 ~ Leo Petrazickis ~ 1 Comment

On February 9 through 11, I'll be mentoring hackers and budding data scientists at Galvanize during Datapalooza Seattle. It should be a great conference covering topics like things like machine learning, natural language processing, and data engineering infrastructure.

Intro to #datascience and #spark at #ibminsight 2015

October 9, 2015 ~ Leo Petrazickis ~ Leave a comment

I'll be teaching two hands-on labs at Insight 2015 in Las Vegas: LCD-3459 Introduction to Data Science Data science is a very popular job profile and in great demand in a wide variety of industries. You no longer need a Ph.D. in mathematics or statistics to become a data scientist. Any data professional can upgrade … Continue reading Intro to #datascience and #spark at #ibminsight 2015

Setting up a new Macbook

September 22, 2015 ~ Leo Petrazickis ~ Leave a comment

I've just migrated to a new Macbook Pro as my primary work machine. As part of setting it up, I installed the following: Caffeine to prevent it from going to sleep when I don't want it to go to sleep BetterTouchTool so that I can middle-click (three finger tap) to close tabs and paste in … Continue reading Setting up a new Macbook

Tuning wifi on Mac OS 10.10.3 Yosemite

July 30, 2015 ~ Leo Petrazickis ~ Leave a comment

I've experienced increasingly bad wifi performance on my Macbook Air over time. This has been accentuated further by me being somewhere with a lot of network lag. I did some research and the following suggestions made the wifi faster and more responsive with Mac OS 10.10.3 Yosemite. 1. Disable Bluetooth. I don't use any wireless … Continue reading Tuning wifi on Mac OS 10.10.3 Yosemite

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Welcome

I’m a Senior Site Reliability Engineer at Autonomic. I do Golang, Ruby, JS, Python, Elixir, as well as web scale devops with Terraform, Ansible, Kubernetes and Docker.


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