MahdyTech

A starter blog demonstrating what Gatsby can do.

Latest posts

While my team was moving a service, let’s call it Billy, to a new cluster with different hardware, Billy’s performance degraded. Now my team…

Aug 30, 2022

I stumbled across the concept of “Large-Pages” several times, mainly through mentions in our codebase, but I never went much further than…

Dec 27, 2020

I heard about VTune a while ago as a processor instruction level profiler, but I never got the chance to play around with it. This blog…

Aug 6, 2019

Backdrop Narrowing it Down Data Store is Innocent gRPC Profile Cures All More Debugging What if Ignite the Network Engineer Within Now…

May 12, 2019

This language is lacking In garbage collecting So now I’ve got a memory leak “Memory Leak” by Awesome If you manage memory on your own, it…

Mar 25, 2019

“Everybody who learns concurrency thinks they understand it, ends up finding mysterious races they thought weren’t possible, and discovers…

Feb 22, 2019

Heap corruptions can be nasty to investigate. I recently had to investigate a bug that manifests under special circumstances in production…

Feb 10, 2019

I have mostly been working on the details of rather big projects, and that can make one lose touch with end-to-end magic. This week I…

Feb 4, 2019

Disclaimer: This is a story from production. I have changed a couple of details, but the gist of the story holds. Exposition On a normal…

Jan 13, 2019

[Disclaimer: This post was edited in Feb 2022 to address feedback. Previous version can be found on Github] As a windows user for many many…

Jan 5, 2019

or Why it is hard to get Graceful Shutdowns right I used to think shutdowns are easy. You’re shutting down and the OS is going to take care…

Dec 30, 2018

“Computers are really fast” said my friend to me a while ago, as I was trying to figure out how to optimize the hottest path in my service…

Dec 23, 2018