jooz

4 ms·

1.
by jooz 7mo ago
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 on the main data structure. I thought, ok, thats fine, it&#x
2.
by jooz 2y ago
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.
3.
by jooz 3y ago
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 syntax in less time that took me to prepar
4.
by jooz 3y ago
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, in case of crash of the consumer, some of them w
5.
by jooz 3y ago
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 modules ? If my goal is to reduce the cpu cloud bill, is BPF goo
6.
by jooz 4y ago
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 me. I would recommend to 'python -m ven
7.
by jooz 4y ago
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, but they have been on the same place all their life, so Im
8.
by jooz 4y ago
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 are not standard. Do you plan to cover t
9.
by jooz 4y ago
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 (name, wage) VALUES ('John','50k'); Then
10.
by jooz 5y ago
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 this measure is not very effective.
11.
by jooz 5y ago
When using my password manager, I often provide only the password, not the user. In case of data breach they can not be exploited.
12.
by jooz 6y ago
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 all used flex+yacc and a simplified ASM that was
13.
by jooz 6y ago
To understand large codebases is my biggest weakness. I would be definitively interested.
14.
by jooz 6y ago
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.
15.
by jooz 6y ago
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/item?id=21936252
16.
by jooz 6y ago
> 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 machines) cluster. I would expect that after a first lo
17.
by jooz 6y ago
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 forced to log in on oracle.com was difficult (in fact I couldn