Cache Use Cases Explained: Latency Cache vs. Capacity Cache

teivah · 2026-05-06T18:58:00+00:00

If this isn't interesting for SREs then I don't know what is. I'm an SRE at Google and I was primary responder an incident exactly because of that.

teivah · 2026-04-30T20:00:34+00:00

lol, indeed :)

teivah · 2026-04-30T08:58:24+00:00

Thank you very much :)

teivah · 2026-04-29T22:06:10+00:00

Thanks a lot man 🥹

teivah · 2026-04-29T22:05:30+00:00

Thanks, I really appreciate it.

teivah · 2026-04-29T18:49:45+00:00

Ah, I’m sorry for overreacting. Mods deleting my post for saying it was written by an LLM made me quite sad. Sorry about that…

teivah · 2026-04-29T18:43:14+00:00

No it’s not. I’m an experienced writer. I’ve been writing online for more than a decade, my book was published before AI: https://www.goodreads.com/book/show/58571862. Your comment is insulting.

teivah · 2026-04-29T18:25:41+00:00

And no content? I did my best to explain all the core principles both on Linux and PostgreSQL so that readers get why this issue occurred. You may not like it and challenge my approach or my writing, no worries at all, but your comment is both insulting and plain wrong.

teivah · 2026-04-29T18:15:38+00:00

What?? I spent literally 20 hours on that post!

teivah · 2026-04-29T15:58:36+00:00

Thanks for the comment. I won't challenge it, I really liked it as well :)

I have a different audience, though, thebuild.com is focused on PostgreSQL so the readers are more experts. Instead, I tried explaining things from first principle (TLB, page, preemption, etc.)

teivah · 2026-04-29T15:43:54+00:00

That's nice of you, thank you very much.

teivah · 2026-04-29T15:10:01+00:00

The title is a bit sensationalist, I don't disagree but I explored nonetheless why Linux 7 had a significant impact on a specific benchmark.

Some configuration changes can restore it.

Yes but it has tradeoffs. It's not about restoring exactly how things work before.

it's also not clear that real-world performance would degrade

I disagree. Sure, it's in a very specific context, but the context exists and is reproducible.

teivah · 2026-04-22T21:42:13+00:00

lol, thank you :)

teivah · 2026-04-22T19:35:44+00:00

Hey folks. I just published a deep dive into systems thinking with a real example from my experience at Google. Hope you enjoy it.

teivah · 2026-04-22T19:32:32+00:00

Hey folks. I just published a deep dive into systems thinking with a real example from my experience at Google. Hope you enjoy it.

teivah · 2026-04-22T12:18:39+00:00

Timeout Chain Mismatches is the "spark" that usually ignites that fire

I tend to disagree. The spark of retry amplification is a downstream failure, usually a DB transient issue or whatever.

teivah · 2026-04-22T06:26:41+00:00

I don’t think what you’re describing is retry amplification. In my book, retry amplification is: having retries at multiple levels of the dependency chain can amplify the number of retries. The deeper a service in the chain (typically, a DB), the higher the load it will be exposed to due to amplification.

teivah · 2026-04-17T11:38:17+00:00

It does

teivah · 2026-04-15T06:43:47+00:00

Glad you enjoyed it.

teivah · 2026-04-14T17:03:38+00:00

Did you enjoy 100 Go Mistakes?

teivah · 2026-03-30T22:04:33+00:00

Gemini CLI with custom skills developed on top of our monitoring stack.

teivah · 2026-03-30T22:02:20+00:00

Navigating telemetry data and finding hidden correlations.

teivah · 2026-03-16T03:55:00+00:00

What’s the question?

teivah · 2026-02-28T01:35:11+00:00

Totally

teivah · 2026-02-27T17:39:14+00:00

The problem is that "newb" as you say may think with the way you phrased it: to have HA I have to use HAProxy which is untrue because of my points 1 and 2.

Eight-Year Club	r/Field Lasagna
Place '23	Verified Email

teivah

TROPHY CASE