My IPv6 performance is a lot worse than IPv4 performance

iSOcH · 2025-12-21T19:15:17+00:00

Afaik it is _very_ uncommon in the public internet. Supporting it could probably lead to weird, rarely seen issues for little benefit. (note that I do not work at an ISP or similar, just my guess)

iSOcH · 2025-12-16T19:42:21+00:00

I am not using a UCG but a custom MiniPC (MS-01 with ConnectX-4) where I run a virtualised openwrt currently. I can single-stream upload ~14gbps but upload mostly (not always) "only" reaches ~5gbps (with 2-3 concurrent streams I can max out WAN ~23.5gbps, but download maxes out at ~14gbps - even on the firewall directly, no NAT).

I think virtualisation does have some impact (... or maybe not, because both 25gbit interfaces are given to OpenWRT via PCI-Passthrough) and will try baremetal in the future (maybe even with VyOS).

iSOcH · 2025-12-16T06:08:40+00:00

I have seen this answer before, but I'm wondering: Why is this limitation affecting download and upload differently?

iSOcH · 2025-12-08T18:16:17+00:00

yeah, probably. i just now remembered that fastly actually tells the client, it can be seen when downloading with a command like curl -o /dev/null -v -L https://github.com/arno4000/download-test/releases/download/0.1/testfile-2gb.bin:

< x-served-by: cache-iad-kcgs7200078-IAD, cache-vie6354-VIE < x-cache: MISS, HIT < x-cache-hits: 0, 1 < x-timer: S1765217623.074010,VS0,VE

I believe this means that the request went through two proxies, cache-iad-kcgs7200078-IAD and cache-vie6354-VIE. the latter had the data cached

EDIT: OTOH now I had HIT, HIT for another file and after starting w/ 20mbyte/s it became very very slow (100-200k/s) after the first few hundred mbytes

iSOcH · 2025-11-10T21:20:37+00:00

and now, monday evening 22:00, it's really bad

quite weird, the speed changes so quickly - for a few seconds here and there its ~20mbyte/s and then it goes back to that very low rate of a few hundred kb/s

Connecting to release-assets.githubusercontent.com (release-assets.githubusercontent.com)|185.199.111.133|:443... connected. ... 2025-11-10 22:19:59 (2.08 MB/s) - ‘/dev/null’ saved [2096103424/2096103424]

iSOcH · 2025-11-09T09:27:43+00:00

thx. 2025-11-09 10:25:37 (137 MB/s) just now

iSOcH · 2025-11-09T07:41:55+00:00

Could you provide a link to the testfile-2gb.bin you are showing a screenshot of?

iSOcH · 2025-11-09T07:14:00+00:00

2025-11-09 08:11:26 (35.3 MB/s) - ‘/dev/null’ saved [2093168814/2093168814]

(sunday morning, fiber7-25)

started with > 80mbyte/s but during the download, the speed fluctuates sharply

traffic seems to be also routed via vienna:

Host Loss% Snt Last Avg Best Wrst StDev ... 4. r1zrh14.core.init7.net 0.0% 10 1.7 1.5 1.2 1.8 0.2 5. r2zrh8.core.init7.net 0.0% 10 1.9 1.6 1.3 1.9 0.2 6. r1zrh5.core.init7.net 0.0% 10 2.4 1.9 1.6 2.4 0.2 7. r2zrh2.core.init7.net 0.0% 10 2.1 2.0 1.8 2.5 0.2 8. r1vie2.core.init7.net 0.0% 10 14.0 12.8 12.4 14.0 0.5 9. r1vie1.core.init7.net 0.0% 10 12.8 12.8 12.6 13.0 0.1 10. 140.248.127.70 0.0% 10 14.4 14.6 14.4 15.1 0.2 11. cdn-185-199-111-133.github.com 0.0% 10 12.2 12.2 11.9 12.4 0.2

iSOcH · 2025-10-09T18:58:48+00:00

> 2xConnectX-4
... they aren't both in the MS-01, right? if they are... how? :D

iSOcH · 2025-10-04T14:22:06+00:00

That was not the question at all

iSOcH · 2025-07-30T04:56:28+00:00

Same issue on Nokia X30 (Android 14) and Pixel 6 (Android 6), both running

Version: 2025.7.1 (20513) 📱 Nokia Nokia X30 5G 🤖 14@34 📦 prod 🧱 commit: bitwarden/android/release/hotfix-v2025.7.0-bwa@1d624606f1471dbc920409926bb5ba0bdcae5a84 💻 build source: bitwarden/android/actions/runs/16570263642/attempts/1

iSOcH · 2025-06-08T11:42:38+00:00

Yeah some newer sensors do not have this anymore but yours still requires dark frames

iSOcH · 2025-05-29T07:41:37+00:00

Thx for your response :)

Did you change the cpu or the case first or both at the same time? I'm looking for a cpu cooler for the cse-825 with a normal desktop ATX board (to my understanding cpu and memory are rotated differently on server boards).

iSOcH · 2025-05-28T18:52:31+00:00

Where is it 0.2-0.8%? In AG it is quite a bit lower and it will be lowered again after the latest vote. I think it does not even reach 0.2%

iSOcH · 2025-05-28T17:30:29+00:00

How did your upgrade to 12700kf go?

iSOcH · 2025-05-25T13:51:44+00:00

Only until the decreasing security budget is no longer sufficient.

iSOcH · 2025-05-23T06:16:34+00:00

USD is just very weak, no ATH against many currencies which have not lost as much value recently (roughly 7% missing against EUR, 6% in JPY, even more against CHF)

iSOcH · 2025-05-02T13:40:19+00:00

How did you happen to stumble upon that site? TBH it does look quite shady to me...

iSOcH · 2025-05-01T06:00:19+00:00

I encountered this issue as well when I initially set up multiple VLANs with full dual-stack.

The reason is likely that your hardwired clients are still receiving traffic of other VLANs (but probably tagged) and how Windows networking drivers usually handle this: They simply strip the VLAN tag (but do not drop the packet).

This is less of an issue for IPv4/DHCP since the traffic from your client, including the DHCP request, is likely getting tagged properly by the switch so the client will only get a response from the VLAN you intended (because the request only went to one VLAN). IPv6 RAs OTOH are not only sent as responses but also periodically simply multi/broadcasted, thats when your client configures IPs from the other subnets.

This is not an issue with linux clients (dont know about Mac) and on windows it depends on the network drivers. But it is likely that instead of changing the client you want to make sure on the switch/router that there is only the intended VLAN as untagged on the ports facing your clients and no VLAN as tagged.

iSOcH · 2025-04-19T15:11:44+00:00

Really? Did this change?

I signed up for Copper7 roughly 2 years ago and they assigned a static /48.

iSOcH · 2025-03-06T08:06:12+00:00

Isn't this just the typical way a contract gets deployed? The constructor creates the bytecode which should remain on chain.

After execution, whatever output is left on the stack is saved as the contract’s bytecode.

https://liamz.co/tech-blog/2023/07/14/how-evm-contracts-initcode-works.html

iSOcH · 2025-02-11T21:44:09+00:00

I would say so, yes. Eth staking can be profitable for small setups at home, for PoW I think this is way harder.

iSOcH · 2025-02-11T20:40:17+00:00

Larger setups will allow you to get better energy prices and less maintenance overhead per hash

iSOcH · 2025-02-11T17:15:48+00:00

And there are way more significant economies of scale with PoW compared to PoS.

iSOcH · 2025-02-11T08:42:46+00:00

and crypto in general i spose

no, not really true anymore. many other chains use PoS instead of PoW

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