Why ping latencies are differentEveryone has detected what every ping-pong time latency has their timing:Feb 11, 2021Feb 11, 2021
Non root DevOps teamsThere is a company in my experience that does not provide superuser access for the whole DevOps team. “Unexist” devops title has different…Dec 5, 2019Dec 5, 2019
You can’t aggregate percentilesNot rare I meet a person who is surprised that the percentiles cannot be summed up. This is proof of concept about percentile. How math is…May 9, 2019May 9, 2019
Choosing right nginx upstream limitsI want to protect my service from overload. I had made some experiments and now I know my service capacity estimation. It could serve…May 7, 2019May 7, 2019
How one cpu thread loading affect other threads.This question appeared in my mind then I choose CPU for the new task. I was expecting a gap at the moment when all the cores will utilise…Feb 10, 2019Feb 10, 2019
How bad is Python ‘in string’ searchWhen I have a need to check previous occurrence of some element I use a dictionary. In most cases. But at code review process I found out…Apr 11, 2018Apr 11, 2018
Ceph experience in a hosting company.At 2015 company had a needs to launch VPS with cloud storage. Our standard VPS works on the local storage. After all research we decided to…Mar 15, 2018Mar 15, 2018
Test and diagnosis bare metal serversIt is 2018 year, but people who prefer the dedicated servers still alive :). I am working in hosting company and we make diagnosis for…Jan 25, 2018Jan 25, 2018
