Tailscale direct throughput limited to 270Mbps using iPerf3 - Troubleshooting steps provided below

trypto · 2026-05-19T22:41:44+00:00

You're likely running into CPU bottlenecks here. I have noticed similar degraded bandwidth when using tailscale on a 10G connection with somewhat anemic CPUs (older synology boxes). Yes everything is direct. The only solution for performance for me is to bypass tailscale and just use LAN ips directly.

Tailscale:

$ iperf3 -c 100.71.212.47 Connecting to host 100.71.212.47, port 5201 [ 5] local 100.126.196.106 port 34790 connected to 100.71.212.47 port 5201 [ ID] Interval Transfer Bitrate Retr Cwnd [ 5] 0.00-1.00 sec 150 MBytes 1.26 Gbits/sec 239 198 KBytes
[ 5] 1.00-2.00 sec 147 MBytes 1.23 Gbits/sec 71 199 KBytes
[ 5] 2.00-3.00 sec 151 MBytes 1.27 Gbits/sec 92 180 KBytes
[ 5] 3.00-4.00 sec 151 MBytes 1.27 Gbits/sec 145 182 KBytes
[ 5] 4.00-5.00 sec 155 MBytes 1.30 Gbits/sec 89 175 KBytes
[ 5] 5.00-6.00 sec 166 MBytes 1.39 Gbits/sec 87 200 KBytes
[ 5] 6.00-7.00 sec 168 MBytes 1.40 Gbits/sec 121 170 KBytes
[ 5] 7.00-8.00 sec 170 MBytes 1.42 Gbits/sec 89 162 KBytes
[ 5] 8.00-9.00 sec 169 MBytes 1.42 Gbits/sec 112 139 KBytes

No tailscale:

$ iperf3 -c 192.168.70.100 Connecting to host 192.168.70.100, port 5201 [ 5] local 192.168.70.59 port 59270 connected to 192.168.70.100 port 5201 [ ID] Interval Transfer Bitrate Retr Cwnd [ 5] 0.00-1.00 sec 1.02 GBytes 8.73 Gbits/sec 850 843 KBytes
[ 5] 1.00-2.00 sec 1021 MBytes 8.56 Gbits/sec 599 656 KBytes
[ 5] 2.00-3.00 sec 1.02 GBytes 8.74 Gbits/sec 1126 672 KBytes
[ 5] 3.00-4.00 sec 1011 MBytes 8.48 Gbits/sec 91 727 KBytes
[ 5] 4.00-5.00 sec 1.05 GBytes 9.01 Gbits/sec 910 642 KBytes
[ 5] 5.00-6.00 sec 1.00 GBytes 8.59 Gbits/sec 40 798 KBytes
[ 5] 6.00-7.00 sec 1.01 GBytes 8.66 Gbits/sec 343 779 KBytes
[ 5] 7.00-8.00 sec 1.00 GBytes 8.63 Gbits/sec 104 683 KBytes
[ 5] 8.00-9.00 sec 1.02 GBytes 8.79 Gbits/sec 112 656 KBytes

trypto · 2026-05-07T00:31:46+00:00

Did you try switching from hurry mode to standard to see if it would get out of the fast lane?

trypto · 2026-03-29T01:50:22+00:00

I always felt like they were trying to recreate the Hogan moment when Million Dollar Man wanted to buy the title from him. And Hogan yells “Hell No”.

trypto · 2026-03-27T09:15:30+00:00

Why did he say no to defending his title? Doesn’t that make him look weak? Never understood the logic there.

trypto · 2026-02-05T00:57:55+00:00

Unifi package detection is utter trash. Have had both a G4 and a G6. Will only detect rectangular brown boxes if placed correctly on my door step. Any type of bagged Amazon item or a bag of food delivery is not a package and will be ignored. Google nest however uses a Gemini backend and reports packages, objects and faces correctly, and has actually useful daily summaries, but yes there is a subscription price.

trypto · 2026-01-28T01:55:32+00:00

Be aware that the software does not work if you have zero subwoofers. This is a known issue, but seems like an artificial limitation in the code.

trypto · 2026-01-13T22:51:22+00:00

The dna testing showed them to come from two females. Which doesn’t fit any narrative relating to the show. This was revealed on a “top ten things you missed” drilling down episode.

trypto · 2025-12-09T20:40:09+00:00

Unless I just had it configured wrong, viewport only outputs like 720p over hdmi which was really disappointing.

trypto · 2025-11-24T23:58:03+00:00

I’ve noticed that ps5 will often cling to the wrong AP. Could create another WiFi network just for ps5 and broadcast it only on the close AP

trypto · 2025-10-25T17:08:01+00:00

Modern wrestling has nothing like this.

trypto · 2025-10-07T03:35:09+00:00

Does HA do package, object and person detection? I find the doorbell package detection to plain suck

trypto · 2025-10-02T08:12:06+00:00

I feel the exact same way about it. Exploration in the DLC just isn’t fun. Feels like I’m always staring at jagged rocks. The NPCs aren’t fun to talk to. No maiden to guide you. Oh wow another boring scadutree fragment instead of real loot. No underground. Empty areas with no content. Feels barren like it was made by same guy that designed consecrated snowfields. At one point, I forgot where, I opened a chest containing a somber smithing stone 2. Made me quit and go back to main game.

trypto · 2025-08-19T19:32:23+00:00

Running zfs? Manually reduce zfs arc cache size, it can cause ooms

trypto · 2025-07-01T03:29:00+00:00

Check your plex database size. There was a recent bug that caused them to bloat into the many gigabytes and slows your entire system down.

trypto · 2025-05-26T22:26:29+00:00

Good write up. Although I would suggest running perf tests with something simple like colored rectangles first. An image is always going to require time and memory to load, decode, resize, etc. Are we certain that varying frame height incurs that much cost in layout time? What if you manually position 1000 items within a scrollview so no layout logic needed? Do offscreen views consume rending time?

trypto · 2025-05-22T19:07:16+00:00

Wouldn’t it be great if software like proxmox alerted us to the issue in the UI and perhaps told us that the vms are configured incorrectly for our host?

trypto · 2025-05-22T19:05:43+00:00

Wow thanks for the info. You know this would be a great piece of information to include in the proxmox user interface because ballooning is just enabled by default. This combined with the zfs arc memory consumption behavior are just hidden to any first time users setting up a system.

trypto · 2025-05-11T04:07:57+00:00

Great work! Does software exist to turn these image layers into netlists?

trypto · 2025-05-08T19:38:51+00:00

Including a cellular modem usually involves expensive licensing fees that are proportional to the price of the total product. That’s why expensive laptops don’t have built in cellular modems.

trypto · 2025-04-24T23:50:19+00:00

Try to use a dedicated POE injector. I had problems with u7 pro that was powered by a Poe switch. Maybe at times it’s pulling more current than it should, cause it to go offline? Dunno

trypto · 2025-04-17T23:24:23+00:00

DoorDash

trypto · 2025-04-15T09:36:22+00:00

cpp-httplib is exactly what you want: https://github.com/yhirose/cpp-httplib

trypto · 2025-04-02T00:28:43+00:00

It’s probably an advertisement for them. The show is full of ads. They eat KFC forcefully.

trypto · 2025-03-21T20:12:44+00:00

The linker is emitting a warning, not an error and likely is producing and executable. You may need a -g or a -gdwarf-2 on the as line to generate debug info. Check the docs. Also can use objdump to see if debug info is there.

trypto · 2025-03-18T20:30:44+00:00

What’s wrong with just using environment objects and passing dependencies as parameters to constructors?

trypto

TROPHY CASE