Sysadmin Tools 🇺🇦

Performance Evaluation of Container Runtimes

The co-location of containers on the same host leads to significant performance concerns in the multi-tenant environment such as the cloud. These concerns are raised due to an attempt to maximize host resource utiliza- tion by increasing the number of containers running on the same host. The selection of a container runtime becomes critical in the case of strict performance requirements. In the scope of the study, two commonly used runtimes were evaluated: containerd (industry standard) and CRI-O (reference implementation of the CRI) on two different Open Container Initiative (OCI) runtimes: runc (default for most container runtimes) and gVisor (highly secure alternative to runc). Evaluation aspects of container runtimes include the performance of running containers, the performance of container runtime operations, and scalability. A tool called Touch- Stone was developed to address these evaluation aspects. The tool uses the CRI standard and is pluggable into any Kubernetes-compatible container runtime. Performance results demonstrate the better performance of containerd in terms of CPU usage, memory latency and scalability aspects, whereas file system operations (in particular, write operations) are performed more efficiently by CRI-O.

1.59K views07:36

Sysadmin Tools 🇺🇦

A stupid game for learning about containers, capabilities, and syscalls

https://contained.af

https://github.com/genuinetools/contained.af

#container #docker #podman #containerd

1.96K viewsedited 09:27

Sysadmin Tools 🇺🇦

Open source customer notifications in less than 5 minutes

https://github.com/flashohq/flasho
https://flasho.io/

#notifications #email #sms #selfhosted

1.77K views08:17

Sysadmin Tools 🇺🇦

Extended observability to agentless monitoring on MySQL using ProcFS UDF plugin

https://fosdem.org/2023/schedule/event/mysql_procfs_udf/

#observability #monitoring #mysql

1.87K views14:48

Sysadmin Tools 🇺🇦

NoSQL vs SQL

https://www.scylladb.com/learn/nosql/nosql-vs-sql

#sql #nosql #scylldb

2.08K views04:01

Sysadmin Tools 🇺🇦

Save network costs with VictoriaMetrics remote write protocol

https://victoriametrics.com/blog/victoriametrics-remote-write/

#monitoring #observability #victoriametrics

2.4K views14:02

Sysadmin Tools 🇺🇦

swarmlet

A self-hosted, open-source Platform as a Service that enables easy swarm deployments, load

 balancing, automatic SSL, metrics, analytics and more

https://github.com/swarmlet/swarmlet

#docker #swarm #container

1.99K viewsedited 06:25

Sysadmin Tools 🇺🇦

PolygonDB

is an alternative to MongoDB that provides a developer-friendly experience and less resources hungry

https://github.com/JewishLewish/PolygonDB

#mongodb #json

2.11K views15:41

Sysadmin Tools 🇺🇦

Build a Raspberry Pi monitoring dashboard in under 30 minutes

https://opensource.com/article/23/3/build-raspberry-pi-dashboard-appsmith

#monitoring #raspberry #flask #python

2.27K views08:27

Sysadmin Tools 🇺🇦

Observability Survey 2023

by Grafana labs

https://grafana.com/observability-survey-2023/

#observability #monitoring

2.38K views15:36

Sysadmin Tools 🇺🇦

Practical tips for rightsizing your Kubernetes workloads

https://www.datadoghq.com/blog/rightsize-kubernetes-workloads/

#k8s #kubernetes #monitoring

1.74K viewsedited 10:37

Sysadmin Tools 🇺🇦

Logging at Zerodha

https://zerodha.tech/blog/logging-at-zerodha/

#clickhouse #logs

1.51K views13:57

Sysadmin Tools 🇺🇦

Autometrics

Autometrics is a set of open source libraries that make it fun and easy to understand the performance of your code in production.

https://github.com/autometrics-dev

#monitoring #go #rust #python #ruby

1.45K viewsedited 10:58

Sysadmin Tools 🇺🇦

Enhancing Kubernetes Security with Kyverno, RuntimeClass, and Kata Containers

https://itnext.io/enhancing-kubernetes-security-with-kyverno-runtimeclass-and-kata-containers-f513308c7a23

#k8s #kubernetes #security #katacontainers #docker #container

1.43K views09:44

Sysadmin Tools 🇺🇦

Virtual VictoriaMetrics Meetup on March 30th

Hello all, we've just published the full agenda for this Thursday's virtual meet up, including this highlight: An early introduction to the upcoming VictoriaLogs 😎

Full agenda:
Welcome & Introductions
Overview of the Latest Features
- What's new in VictoriaMetrics at Q1 2023
- Stream aggregation
- VictoriaMetrics remote_write protocol
- Recent improvements in vmauth
Roadmap Review/Update (upcoming)
VictoriaLogs Preview
AMA

We're looking forward to seeing you many of you there! https://www.youtube.com/watch?v=Gu96Fj2l7ls

#victoriametrics #monitoring #observability

1.66K viewsedited 10:25

Sysadmin Tools 🇺🇦

EKG (Essential Kubernetes Gauges)

Moni

tor the health of a Kubernetes cluster with ease, using Service Level Objectives (SLOs).

https://github.com/nobl9/ekg

#k8s #kubernetes #slo #monitoring

1.66K viewsedited 01:10

Sysadmin Tools 🇺🇦

Ice and Fire: How to read icicle and flame graphs

https://www.polarsignals.com/blog/posts/2023/03/28/how-to-read-icicle-and-flame-graphs/

#flamegraph #debug #tool

1.72K views07:20

Sysadmin Tools 🇺🇦

Timoni
is a package man

ager for Kubernetes, powered by CUE and inspired by Helm.
The Timoni project strives to improve the UX of authoring Kubernetes configs. Instead of mingling Go templates with YAML like Helm, or layering YAML on top of each-other like Kustomize, Timoni relies on cuelang's type safety, code generation and data validation features to offer a better experience of creating, packaging and delivering apps to Kubernetes

https://github.com/stefanprodan/timoni

#k8s #kubernetes #cuelang #helm #yaml #kustomize

1.88K viewsedited 11:10