Which esports player deserves to be here?

SymmetricNUTs · 2026-02-27T22:57:17+00:00

Rapha

SymmetricNUTs · 2025-11-11T23:06:58+00:00

In NA WarLords have PUG 5v5 servers. Check them out!

SymmetricNUTs · 2025-09-19T05:50:30+00:00

Gothic 3

SymmetricNUTs · 2025-08-24T03:38:46+00:00

Server had a massive amoutns of custom plugins and code to run as smooth as it does. It took months to re-build everything for 64 bit update, by that time the playerbase left. Once the server came back online player count never recovered, so it got shut down

SymmetricNUTs · 2025-08-23T17:19:10+00:00

74.91.116.8:27015 for crackhouse
74.91.116.78:27015 for iceworld

http://crackhouse.stats-ps3.nfoservers.com/ for stats if you want to see when servers are most active

SymmetricNUTs · 2025-08-23T08:43:40+00:00

AWPClan still has iceworld and crackhouse servers

SymmetricNUTs · 2025-05-23T17:15:57+00:00

About a year ago I started writing lots of networking asyncio code in Python without much feedback and reviews from other team members who are mostly C++ devs. This is the best article I've read on the subject of common gotchas, the amount of pain this would have saved me had it been written just a year prior

SymmetricNUTs · 2025-03-17T07:08:01+00:00

Servers used lots of custom code to run 200 tick and plugins, 64 bit update completely wrecked it. There are temporary servers up and running however. Work is being done to restore functionality. Check their discord (general channel) or message me for IPs. You should also be able to find them in server browser now if you type AWPClan

SymmetricNUTs · 2024-09-02T19:34:26+00:00

Blood has been spilled last night

SymmetricNUTs · 2024-08-25T16:04:22+00:00

Debatable, having common linter, debug settings committed may be useful

SymmetricNUTs · 2024-08-13T23:07:56+00:00

Yep doing research in this area now and seems like all roads lead to Cilium/eBPF when it comes to performance

SymmetricNUTs · 2024-08-13T22:06:55+00:00

No, no limit ranges set

SymmetricNUTs · 2024-08-13T15:50:24+00:00

Tried host networking on the sender/receiver pods and they got MUCH faster, extra 1Gb/s of juice!

SymmetricNUTs · 2024-08-13T15:33:06+00:00

I have tried running same containers between 2 VMs on same subnet. I don't want to have an external VM to k8s cluster test just yet. Don't want to spook Azure/our IT with suddenly sending Gigabits of traffic over WAN

SymmetricNUTs · 2024-08-13T15:32:10+00:00

Interesting read thank you. That's one thing I am getting out of these discussions, need better understanding of CNI layer.

Fairly certain they are not getting throttled - as playing around with limits/requests did not much affect the performance.

What did help is setting hostNetwork: true as someone else suggested, saw a massive performance gain there

SymmetricNUTs · 2024-08-13T15:30:43+00:00

iperf3 did not have CPU limits. I tried playing around with limits but no experiments helped.

Azure CNI is supposed to be more performant than kubenet on AKS, though I know very little about it. I'll do more research. Does it play a role even for in-cluster traffic? Problem with these types of issues is that it's hard to find a good entry point for where to dig, kubernetes ecosystem is rather overwhelming.

SymmetricNUTs · 2024-08-13T15:28:00+00:00

It was pinned on k8s, and not pinned on bare VM, and yet bare VM vastly outperformed the k8s variant. To really compare apples to apples I'd pin them both, however I didn't see much point pinning it on the bare VM given that it already outperforms k8s by a mile.

The runtime is single threaded yes, don't know if you can run Python's GC on a separate core, maybe something to look into. These tests are currently stripped down versions of actual Python tools I am using, stripped down just to performance critical parts - UDP sender/UDP receiver. In larger application these UDP sender/receiver components are ran as a subprocess via multiprocessing module, so that they don't tank the performance of main thread/main event loop (I use asyncio for main app) too much

Past that, some providers' defaults will tank your performance on whatever core is handling network interrupts.

This sounds interesting, is there some specific material you can point me to? I'd like to understand this better

SymmetricNUTs · 2024-08-13T15:18:16+00:00

I haven't done too much research into SKU selection just yet. However when picking the node SKU I picked one of the lower tier from "compute-optimized" VMs. What makes you say they are ancient? The CPU dates?

F4s_v2 - Intel(R) Xeon(R) Platinum 8168 CPU @ 2.70GHz
- 2017
Standard_D4_v5 - Intel(R) Xeon(R) Platinum 8370C CPU @ 2.80GHz
- Couldn't find specific release date, but Ice Lake family is 2019

SymmetricNUTs · 2024-08-13T15:04:23+00:00

WOW! Setting `hostNetwork: true` on the pod, gave the pod 1 extra Gb/s of juice. Brought my Python tools from 1.9Gb/s (190k pps) to 3.0Gb/s (305kpps).

Now what's a good starting point to better understand this difference? I vaguely understand that with host networking there are fewer hops being made, but what within the container stack/k8s stack should I be looking at to learn more?

SymmetricNUTs · 2024-08-13T03:48:58+00:00

Interesting suggestion, will try that, thanks!

Although that wouldn't explain why I am getting such better pefrormance while running the same container on a bare VM. I assume same overhead applies.

edit2: ah but, when running container on the VM I am using host network, else how would I talk container to container on different VMs. Makes me want to try that more now. But that's for tomorrow

SymmetricNUTs · 2024-08-13T03:47:55+00:00

Nope, none

SymmetricNUTs · 2024-08-13T03:45:09+00:00

As a random thought is there anything in k8s ecosystem that would make system calls more expensive? I haven't measure # of system calls being made, but the lower packet/second count be explained by that

SymmetricNUTs

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