Live data from Hacker News

Desktop compositing latency is real

lofibucket.com

251–260 of 306 posts

Re: Desktop compositing latency is real

#251

Earlier quoted context omitted.

That problem is largely solved if you use 8P8C connectors with a rubber boot protecting the latching tab. https://info.pcboard.ca/wp-content/uploads/2017/04/RJ45-Conn...

You can't tell me that's better than the USB-C connector. Even HDMI is better.

My MacBook Pro’s USB-C connectors glitch if you move them slightly. I like the data rate but I’m not happy with RAM-pack wobble in 2017.

Re: Desktop compositing latency is real

#252

Earlier quoted context omitted.

What I hate even more is when I press the Windows key and start typing an application's name into the Start menu textbox, and it misses the first two or three keypresses.

That's weird, I don't have that problem. What build of Win10 are you running? I wonder if it depends on the kind of keyboard you're using.

I think it somehow depends on whether the OS is installed on a spinning disk or an SSD. I know it's stupid but this is my theory based on observation. Would love for someone to verify it.

Re: Desktop compositing latency is real

#253
post #35

According to this: https://www.youtube.com/watch?v=BTURkjYJ_uk Firefox's servo engine can compose CSS elements/Display List together at 500 frames / second. Maybe next version of Windows / Linux desktop should use FF's servo engine?

"Money can buy bandwidth. Latency requires bribing God."

Re: Desktop compositing latency is real

#255
post #76

Earlier quoted context omitted.

The little plastic bits always snap off. Ethernet is great for semipermanent wires but not very good for peripherals like portable hard drives that are constantly disconnected and reconnected.

What’s that to do with displays which aren’t unplugged frequently?

I plug/unplug from my display several times daily, since the MBP connected to it travels with me. Granted, the end of the cable in the monitor typically doesn't move¹

¹well, one of them. The crap LG monitors we have constantly forget about the peripherals that are attached, and one easy way to fix this is to detach/reattach the peripheral. I suspect that the company is never going to RMA these devices, sadly.

Re: Desktop compositing latency is real

#256
post #119

Earlier quoted context omitted.

Actually not a bad idea. Ethernet speed is one gigabit per second. And there are high throughput devices like LIDARs (eg Velodyne LiDAR known from Google/Waymo self-driving cars) that are connected via Ethernet rather than USB. Having 1 GBit Ethernet LAN network since 2004, I would prefer the possibility to upgrade to 10Gbit home Ethernet in near future.

It's a terrible idea. USB-3 is faster than 1Gbit/s. and there's no way you can drive a 5K monitor with any current or near future Ethernet standard, the bandwidth demands are too punishing. Ethernet isn't optimized around short-haul signals, like computer to screen over a few metres at most, it's for 100m+ runs in datacentres. The signals have to be a lot more durable.

"and there's no way you can drive a 5K monitor with any current or near future Ethernet standard"

That's an outright lie. 20gbit switches (like the one sitting in my living room) most certainly have the bandwidth.

Post reply on HN