Золотые сигналы SRE для самых маленьких. Или как сделать качественный мониторинг, если вы не Enterprise

Проекты ломаются, иногда очень коварно. Крупные компании используют различные подходы, чтобы обеспечить наблюдаемость, покупают дорогие сервисы, нанимают SRE-инженеров. Но если проект небольшой, условный телеграм-бот, многие решения по мониторингу могут быть избыточными. Перед нами стала задача обеспечить для них Observability так, чтобы это было максимально просто, дешево(желательно бесплатно) и обеспечивало лучшие SRE-практики для наших пользователей. Так, чтобы обеспечить опыт наблюдаемости работы сервисов, близкий опыту крупной компании с SRE-отделом, только без сложности настройки и условно бесплатно.

https://habr.com/ru/companies/amvera/articles/906498/

#sre #золотые_сигналы_sre #latency #traffic #Saturations #liveness_и_readines_пробы #метрики #логи

#LibreQoS training will be a part of 2025 Bohol Network Bootcamp in Bohol, #Philippines: June 3-5, 2025.
More info and registration:
https://forms.gle/6irrPq9JBM58F9kn8

#QoE #bufferbloat #latency #QualityOfExperience #QoS #ISP
#WISP #FISP #jitter #RFC8290 #OpenSource #FQ_CoDel #sch_CAKE #broadband #BandwidthIsALIE #FLOSS #FQCoDel #schCAKE
#LowLatency #Fiber #WiFi #InternetServiceProvider

Thanks, #TeledataICT. Much appreciated. RIP @mtaht

https://www.facebook.com/teledataict/posts/pfbid0Fbpgp4kd2rrUFhVhJxuEvzozR9LEbqZVg55XgMz9na4YAyq4zNDbEVBVtTMpZgJil

#RFC8290 #BandwidthIsALIE #bufferbloat #LibreQoS #Latency #sch_CAKE #FQ_CoDel #QoE #ISP #WISP #QualityOfExperience #broadband #FISP #QoS #Ghana #DaveTaht #speedtest
#OpenSource #FLOSS #Accra #InternetServiceProvider

Thank you very much for your kind words, @karlauerbach via @larrypress & #CircleID

https://circleid.com/posts/remembering-dave-taht#13449

#DaveTaht #bufferbloat #RFC8290 #BandwidthIsALIE #FQ_CoDel #sch_CAKE #OpenSource #FLOSS #latency #jitter #LibreQoS #QoE #QoS

Our very own @herberticus was speaking at #ZANOG 2025 recently in Durban, South Africa:
https://www.youtube.com/watch?v=AXecXxkKQoU

Thanks for having us, ZANOG!

#LibreQoS #latency #bufferbloat #jitter #ISP #QualityOfExperience #QoE #broadband #OpenSource #FLOSS #ISP #WISP #FISP #ZANOG25 #QoS #RFC8290 #InternetServiceProvider #WiFi #FQ_CoDel #sch_CAKE #FQCoDel #schCAKE #QualityOfService #DaveTaht #SouthAfrica

Slides from @mtaht's amazing talk at #GOTOConferences 2024 in Chicago are here:
https://files.gotocon.com/uploads/slides/conference_82/3379/original/GotoChicago2.pdf

#GOTOcon #DaveTaht #BandwidthIsALIE #RFC8290 #bufferbloat #latency #jitter #FQ_CoDel #sch_CAKE #LibreQoS #OpenSource #FLOSS #QoE #QoS #GOTO #OpenSource #FLOSS

Reducing Network Latency: Innovations for a Faster Internet • @mtaht • GOTO Conferences 2024 in Chicago

This was #DaveTaht’s last in-person conference speaking event.
https://www.youtube.com/watch?v=UDo9W4tt69c

People used as packets to demonstrate #bufferbloat, #latency and #jitter, Q&A as well as Dave playing a short song with his guitar <3

#GOTOcon #GOTO #OpenSource #FLOSS #ISP #QoE #QualityOfExperience #WiFi #sch_CAKE #FQ_CoDel #broadband #RFC8290 #Starlink #FWA #FISP #WISP #schCAKE #FQCoDel #LibreQoS

REMEMBERING @mtaht
—
Dave Taht, co-founder of the buffer bloat project, improved Internet performance with unselfish, open-source advocacy and idealistic dedication to universal connectivity.

https://circleid.com/posts/remembering-dave-taht

Larry Press via CircleID

#RFC8290 #BandwidthIsALIE #DaveTaht #FQ_CoDel #sch_CAKE
#OpenSource #FLOSS #CircleID #bufferbloat #latency #jitter #QoE #LibreQoS #QualityOfExperience #Linux #OpenWrt #QoS #Starlink #Kernel #LinuxKernel #FQCoDel #schCAKE #WiFi

Throwback: @mtaht's "State of the #Bufferbloat" address at @linuxplumbersconf conference 2024:

https://www.youtube.com/watch?v=nU38C0uvmOM

#LibreQoS #latency #QoE #WiFi #LinuxPlumbers #OSSummit #broadband #ISP #WISP #FISP #DaveTaht #RFC8290 #QoS #InternetServiceProvider #FLOSS #OpenSource #Linux #Starlink
#BandwidthIsALIE #Kernel #LinuxKernel #QualityOfExperience #FQ_CoDel
#QualityOfService #sch_CAKE #FQCoDel #schCAKE

@shoppingtonz @alternativeto @torproject also every #Tunneling - regardless if #SSH or #VPN or whatever - will inevitably introduce #latency (unless you happen to be customer of a shitty #ISP with horrible #peering and thus can cut down on hops needed, which is AFAIK only a theoretical scenario)...

• Outside of circumventing #Geoblocking and bypassing #IP-based #Banning (i.e. for #Cheating) I've not seen any use-cases.

In fact I stopped using #HEnet #Tunnelbroker and #IPv6-#GIF-Tunneling because it created more issued than it solved on my #IPv4only #Internet connection…

Join #LibreQoS in-person training in Quezon City, #Philippines, as part of MikroTik Networking Engineering Bootcamp:
May 26-30, 2025

More info and registration:
https://forms.gle/iYFm9xwMu1w2Lj2B9

#QualityOfExperience #bufferbloat #latency #QoE #broadband #ISP #WISP #FISP #OpenSource #InternetServiceProvider #QoS #RFC8290 #FQ_CoDel #sch_CAKE #jitter #MikroTikPh #MikroTik #schCAKE #FQCoDel #QualityOfService

.@FLOSS_Weekly EP 829: THIS MACHINE KILLS VOGONS - @herberticus & Frank joined @JP_Bennett to chat about @mtaht's legacy, #bufferbloat, #LibreQoS, #Starlink & #SpaceX, #OpenWrt and MORE! cc @hackaday

https://hackaday.com/2025/04/16/floss-weekly-episode-829-this-machine-kills-vogons/

#DaveTaht #RFC8290 #FLOSS #BandwidthIsALIE #FQ_CoDel
#sch_CAKE #OpenSource #FLOSSWeekly #Hackaday FQCoDel #schCAKE #latency #jitter #Linux #Rust #RustLang #LinuxKernel #WiFi #broadband #QoE #QoS #QualityOfExperience #QualityOfService

Pictures from #LibreQoS training in the #Philippines as a part of 8th ANNUAL NETWORK BOOTCAMP 2025 in Malaybalay City, Bukidnon, on April 8-11, 2025:

https://www.facebook.com/libreqos/posts/pfbid0nsKV99w4BF9SQQxczxgMed48QFheMPmodJ2RXp7RSasUYCZS24tX847U7txYZBil

There were more than 80 people in attendance we were told! 😍

#QualityOfExperience #QoE #bufferbloat #latency #jitter #ISP #broadband #FISP #WISP #InternetServiceProvider #QoS #OpenSource #FLOSS #QualityOfService #RFC8290

Great to see this nice farewell to our beloved @mtaht at @news forum:

https://forum.vyos.io/t/farewell-dave-taht/16379

#DaveTaht #VyOS #RFC8290 #BandwidthIsALIE #FQ_CoDel #sch_CAKE #Linux #OpenSource #FLOSS #bufferbloat #latency #jitter #LibreQoS #schCAKE #FQCoDel #WiFi #router

Join #LibreQoS online training in the #Philippines, on Saturday, May 3, 2025, 9AM - 3PM (Manila Time, GMT+8).

More info and registration
https://www.facebook.com/justanytech/posts/pfbid0VuonWCL76AaVMoNVqfCwqvpQ5AN7GRtuen8ifuRLT9PSK3ddnKuvCbQyZbo6VUcsl

#bufferbloat #latency #QualityOfExperience #QoE #jitter #QoS #OpenSource #FLOSS #ISP #WISP #FISP #FTTH #FTTX #RFC8290 #FQ_CoDel #sch_CAKE #broadband #QualityOfService #schCAKE #FQCoDel #InternetServiceProvider

Thanks for your heartfelt tribute to our beloved @mtaht Mohit P. Tahiliani

https://www.linkedin.com/feed/update/urn:li:activity:7316512705731796992/

#DaveTaht #RFC8290 #OpenSource #FQ_CoDel #FLOSS #sch_CAKE #BandwidthIsALIE #Linux #QoE #OpenWrt #LibreQoS #bufferbloat #latency #jitter #schCAKE #FQCoDel
#QualityOfExperience

GUI tool to manage #LibreQoS / @mikrotik integration released at the 8th ANNUAL NETWORK BOOTCAMP 2025 in the #Philippines:

https://github.com/jesienazareth/jesync_dashboard

#QualityOfExperience #QoE #latency #bufferbloat #jitter #QoS #MikroTik #OpenSource #FLOSS #ISP #WISP #FISP #sch_CAKE #FQ_CoDel #DaveTaht #RFC8290 #schCAKE #FQCoDel #broadband #QualityOfService #InternetServiceProvider

We've switched to my tool to measure latency and availability of our databases at work. This brand new tool, not yet open source, leverages the power of Prometheus histograms to measure those metrics finely.

I had to use DNS names instead of IP addresses to reach the endpoints, because it was easier to use (label = name).

But, the farthest the infrastructure was, the more degraded the measures were. Everything ran locally so what the hell? The level of degradation was not random, it was equal to the light distance to France.

It was DNS. It's always DNS.

The private zones were not deployed on the local resolvers, so we had a 200ms round trip in Australia, to reach resolvers in France, before actually connecting to the database.

The DNS cache didn't help at all.

#qos #latency #dns #database #prometheus

I have good news for us Linux fans: I tested Windows using the same method and it's consistently worse than all three!

⏱️ 71 ms on Windows 10

Interestingly, Windows was very, very consistent, though. Almost all data points are within 5 ms of each other.

#Windows #Latency #Performance #Windows10 #Firefox #LinuxGaming #GamingOnLinux #Gaming

I built a latency meter with an Arduino and a photo transistor to answer one question: Is click-to-photon latency higher on Wayland than on X11?

And the answer is: Yes, actually.

⏱️ 42 ms on X11, compositing off
⏱️ 56 ms on X11, compositing on
⏱️ 64 ms on Wayland
⏱️ 71 ms on Windows 10

Tested with Plasma 6.3.4 and Firefox 137. I will improve my methods and confirm these numbers. See replies for details.

#Arduino #DIY #Electronics #X11 #Wayland #Linux #KDE #Plasma #Latency #Performance #Gaming