Matthew Salminen – Medium

Matthew Salminen

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Journey to 2:30: A 1:11 Breakthrough at the Ventura Half Marathon

Chasing 2:30 — One Step at a Time

Mar 1

Journey to 2:30: A 1:11 Breakthrough at the Ventura Half Marathon

Mar 1

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My Journey to the UTMB OCC 55k: Fitness, the Course, and Mental Prep

After over a decade of running marathons around the world and logging countless miles on the road, I’ve decided it’s time to take on a new…

Aug 24, 2024

My Journey to the UTMB OCC 55k: Fitness, the Course, and Mental Prep

Aug 24, 2024

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Training Differences and Similarities Between Marathon and Ultra Trail Running

In 2024 I tackle new challenges while taking on old ones. UTMB Mont Blanc and Two Marathon Majors.

Dec 27, 2023

Training Differences and Similarities Between Marathon and Ultra Trail Running

Dec 27, 2023

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Spark Shuffle Partitions: Optimizing Your Data Processing

Shuffling in Apache Spark can be optimized to your requirements. Here is a brief outline and background on how you can do that.

Dec 22, 2023

Spark Shuffle Partitions: Optimizing Your Data Processing

Dec 22, 2023

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Optimizing Apache Spark File Compression with LZ4 or Snappy

Comparing performance between two popular file compression algorithms: LZ4 and Snappy

Dec 17, 2023

Optimizing Apache Spark File Compression with LZ4 or Snappy

Dec 17, 2023

Choosing the Right Dataframe: Pandas, Spark, Polars Compared

Knowing what dataframe to use when working with small to large datasets is very crucial to performance and the output of your data…

Jan 15, 2024

Choosing the Right Dataframe: Pandas, Spark, Polars Compared

Jan 15, 2024

Navigating Data: My First Year as a Data Engineer

In 2023, I found myself embarking on a journey into the field of data engineering. Here are three main mindsets to have for growth in 2024.

Jan 1, 2024

Navigating Data: My First Year as a Data Engineer

Jan 1, 2024

Conquering the UTMB Ultra Trail Mont Blanc: My Journey to the OCC in August 2024

Introduction

Dec 9, 2023

Conquering the UTMB Ultra Trail Mont Blanc: My Journey to the OCC in August 2024

Dec 9, 2023

Streamlining ELT Processes: Optimizing your Delta Tables with Autoloader and SQL in Databricks

Efficient ELT (Extract, Load, Transform) processes are the backbone of data engineering, ensuring that data is reliably and promptly…

Nov 25, 2023

Streamlining ELT Processes: Optimizing your Delta Tables with Autoloader and SQL in Databricks

Nov 25, 2023

Improving Databricks Performance: Leveraging Partitioning, Delta Lake Transaction Logging, and…

Here, I provide 3 proven techniques to help speed up your performance in Databricks…

Nov 19, 2023

Improving Databricks Performance: Leveraging Partitioning, Delta Lake Transaction Logging, and…

Nov 19, 2023

Matthew Salminen

Matthew Salminen

Marathon Runner, Online Coach, and Data Engineer. See the latest training and racing insights as well as data engineering topics!

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