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Developer tooling claims, measured against how they behave in real conditions.

Every episode takes one performance or workflow claim, runs it on real hardware with the commands on screen, and reports what actually happened. No sponsored benchmarks, no warm-cache numbers passed off as typical.

New episodes weekly.

Videos

4:03

The Loop That Runs Fine And Still Fails

1 view

12d ago

10:03

The N+1 Query Problem: 0.1 ms of Database, 220 ms of Waiting

3 views

2w ago

9:43

Python Threads Made CPU Work 4.5x Slower

5 views

2w ago

11:52

Postgres synchronous_commit: Yours Is Probably Doing Nothing

7 views

2w ago

4:09

One Tooth Too Many, And Python Stops Dead

2 views

2w ago

4:01

Watch a Loop Open a Lock, One Pin at a Time

2 views

3w ago

13:25

Cache or Index? I Measured Both, Same Table

2 views

4w ago

12:41

Your Cache Is Worth 1.2x Or 78x. I Measured Both

9 views

1mo ago

10:06

Postgres Replica Lag: Almost Every Read Comes Back Stale

20 views

1mo ago

11:10

Latency Numbers Every Programmer Should Know Are Wrong

30 views

1mo ago

10:58

Your npm CI cache is worth 1.28x. node_modules: 6.7x

20 views

1mo ago

9:30

Docker Build Cache: Yours Does Nothing Until You Move Two Lines

9 views

1mo ago

9:15

I was wrong: you can't benchmark on GitHub Actions

6 views

1mo ago

12:08

Your pip cache in CI is worth 1.06x

25 views

1mo ago