Ivan Velichko ✓

@iximiuz · Amsterdam · joined 16 May 2013

Software Engineer. Educator. Entrepreneur. Bootstrapping https://t.co/9b6sZ2UVQj - a learning-by-doing platform to master Linux, Containers, and Kubernetes 🚀

75 751Followers

566Following

12 653Posts total

67.7KViews on collected posts

Derniers posts

Ivan Velichko ✓@iximiuz13 Sep

The second Linux 101 Shell Gym has landed 🚀 If you want to become fluent in the Linux command line, this gym is a perfect way to practice. - Find out what a command name really runs - Learn how to get help with --help and man - Stop or suspend long-running commands A session h

0:53

1.8K views · 29 likes · 5 reposts · 2 replies Open on X →

Ivan Velichko ✓@iximiuz13 Sep

@iximiuz In cgroup v2 a process is in only one cgroup. How do nested setups (Docker-in-K8s, hierarchical slices) prevent priority inversion & resource leakage when you set cpu.max/memory.max, so parents don't silently override your isolation? 19 views · 0 likes · 0 reposts · 0 replies Open on X →

Ivan Velichko ✓@iximiuz12 Sep

@iximiuz Man you're killing it with these tutorials! 62 views · 0 likes · 0 reposts · 0 replies Open on X →

Ivan Velichko ✓@iximiuz12 Sep

TIL: Bash has a nice hook to intercept the exact line the user entered. The idea is rather simple. Bash uses readline() to get the final user input, and attaching a u(ret)probe to it lets you see the whole string. Immediately taught ShellGym this trick: https://t.co/FszEuoQqpT

0:30

12.1K views · 118 likes · 7 reposts · 4 replies Open on X →

Ivan Velichko ✓@iximiuz12 Sep

@iximiuz As someone who worked with Unix back in the day, I can say that ulimit, nice, renice, and cpulimit are nothing new. Linux may be Unix-like, but the same tools and concepts still apply today. 146 views · 0 likes · 0 reposts · 0 replies Open on X →

Ivan Velichko ✓@iximiuz11 Sep

Can you limit a process's CPU and memory usage? 🤔 The Linux cgroup mechanism is behind resource control in Docker, Kubernetes, and even "raw" systemd daemons, but how hard is it to do it manually? Learn how to use cgroup from the command line: https://t.co/6uo4v6DocD https://t.

13.7K views · 182 likes · 26 reposts · 3 replies Open on X →

Ivan Velichko ✓@iximiuz9 Sep

A new hard containerization challenge landed at iximiuz Labs: > Debug a Go Container Image That Fails to Start After a Recent Change Can you find the root cause and fix the build? https://t.co/4AKGDCQ8cS https://t.co/NY2YRy8Muq

2.6K views · 38 likes · 2 reposts · 0 replies Open on X →

Ivan Velichko ✓@iximiuz6 Sep

Extended the offer through September. August ended up at around $12k, which is still far from the sustainability target. Support iximiuz Labs and upgrade your membership at an (un)fair price 👇 3.6K views · 18 likes · 1 reposts · 0 replies Open on X →

Ivan Velichko ✓@iximiuz31 Aug

@iximiuz Purchased the lifetime plan. Great content. Hoping to get more and more content and paths on the platform going forward @iximiuz 40 views · 0 likes · 0 reposts · 0 replies Open on X →

Ivan Velichko ✓@iximiuz17 Aug

@iximiuz amazing content! 367 views · 1 likes · 0 reposts · 1 replies Open on X →

Ivan Velichko ✓@iximiuz16 Aug

@iximiuz For things like this like bitcoin houshold mining, we should have intelligence mining and get either discount or karma. 35 views · 0 likes · 0 reposts · 0 replies Open on X →

Ivan Velichko ✓@iximiuz16 Aug

August has been a weird month for iximiuz Labs so far. Signups and playground usage are up compared to June and July. But the revenue is significantly down - way below the sustainability level. To stimulate things a bit, I'm running the Fair Pricing pilot - you can pick your htt

33.2K views · 150 likes · 49 reposts · 3 replies Open on X →

Face aux comptes de taille comparable

12 posts des 90 derniers jours, à côté de la tranche de 10K–100K abonnés. en dessous de ses pairs à la fois en portée et en engagement.

Vues médianes1 072ce compte1 014médiane pour 10K–100K

Portée, %1.41%ce compte3.74%médiane pour 10K–100K

Engagement, %0.53%ce compte1.68%médiane pour 10K–100K

Indicateur	Ce compte	Médiane pour 10K–100K	Rapport
Vues médianes par post	1 072	1 014	1.06×
Portée (vues ÷ abonnés)	1.41%	3.74%	0.38×
Taux d'engagement	0.53%	1.68%	0.32×

Autres comptes de cette tranche → Comparer avec un autre compte → Comment ces repères sont établis →

Growth & engagement

How the posts we collected actually performed: views and reaction rate post by post, what the audience did with them, and where the follower count goes.

Views per post

33.2K16 Aug

36717 Aug

4031 Aug

3.6K6 Sep

2.6K9 Sep

13.7K11 Sep

14612 Sep

12.1K

1913 Sep

1.8K

Last 12 collected posts, oldest on the left. The scale is logarithmic: one post can outrun the rest a hundred times over.

Engagement rate per post

0.61%16 Aug

0.00%

0.54%17 Aug

0.00%31 Aug

0.52%6 Sep

1.52%9 Sep

1.54%11 Sep

0.00%12 Sep

1.07%

0.00%

0.00%13 Sep

2.03%

Reactions — likes, reposts, replies and quotes — divided by views. Median for 10K–100K accounts is 1.68%.

What the audience does

Likes55.5%536 in total

Reposts9.3%90 in total

Replies1.3%13 in total

Bookmarks33.9%327 in total

Share of every reaction we collected for this account. Replies mean argument, reposts mean endorsement, bookmarks mean the post was worth keeping.

The follower curve appears once this account has two daily snapshots — we take one a day, and this one is on its first.

Derniers posts

Face aux comptes de taille comparable

Growth & engagement

Views per post

Engagement rate per post

What the audience does

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