Viewing profile — jooz

When I train some leetcode problems, I remember the best solution was the one that optimised cpu (time) instead of memory. Meaning adding data index in memory instead of iterating …

Im curious on the real cost of the impact of this game had on big co. I remember everybody was playing non stop at work.

I try to use it last week to run 10 instances of curl against a webserver. I was expecting something simple as 'parallel -j10 curl https://whatever ' but couldnt find the right syn…

The criticism I have through kafka is the "at-least-once" semantics. How do you manage exactly-once semantics? If kafka performance is based on reading small batches of 50 messages…

compared to making a module, apart the fact that the module can end in kernel panic (thats my problem), is there any significance performance difference between BPF and kernel modu…

Ive heard that 'venv' are very problematic, but honestly, Ive never had a problem. And I used them daily. I understand that it can not be enough on some cases... that don't concern…

Reading this point I realize is the one Ive improved last year. After covid crises, many seniors left, and I find myself being the more senior. There a few others seniors around me…

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Some real life problems using standard SQL are: - UPDATE does not return number of rows updated. - There is no "upsert" - There is no "merge" - List all tables and explain command …

I consider SQL imperative. You say exactly how to do what you want, not what do you want. If we take as example a table with a single row: In imperative (SQL): INSERT INTO TABLE1 (…

Im thinking on txt files shared with leaked user and password. On those cases my credentials would not appear. If somebody focus on hacking _me_, they already have my email, so thi…

When using my password manager, I often provide only the password, not the user. In case of data breach they can not be exploited.

When I studied compilers back in the university, the subject consist in reading understanding and putting in practice the 'dragon book' (not the full book but a big part of it). We…

To understand large codebases is my biggest weakness. I would be definitively interested.

Id love to do the conversion on both directions. Grams -> Volume (in caps, tbsp, or milliliters). Happens as well people may not have weigh scale.

There was a Pulsar post on HN a few months ago, with interesting comments, some of the related to kafka. I keep Pulsar on the radar since that post: https://news.ycombinator.com/it…

> The primary consideration at this point is cost. Certainly. In my experience the operational cost of kafka is enormous. Ive seen incidents too often for a relatively small (<10 m…

What is hard is not to choose the java version (1.8,19,...), but the JVM implementation. To choose between hotspot, openjdk, oracle. Even to find the download link without being fo…