How do you get Docker container startup time of 0.01s with any real-life workload (yes, I know they are just processes, so you could build a simple "hello world" thing, but I'd be surprised if even that runs this fast)?
Do you have an example image and network config that would demonstrate that?
(I'd love to understand the performance limits of Docker containers, but never played with them deeply enough since they are usually in >1s space which is too slow for me to care)
On kraft.cloud we use Dockeffiles to build into extremely specialized VMs for deployment. With this in place, we can have say an nginx server cold started and ready to serve at a public URL in about 20 millis (not quite the 10ms you mention, but in the right ballpark, and we're constantly shaving that down). Heavier apps can take longer of course, but not too much (e.g., node/next < 100ms). Autoscale and scale to zero also operate in those timescales.
Underneath, we use specialized VMs (unikernels), a custom controller and load balancer, as well as a number of perf tweaks to achieve this. But it's (now) certainly possible.
Still, that mostly confirms my experience: to achieve this level of performance, you need to do optimizations on a lower level, and this is not really achievable with docker out of the box (plain Linux host with usual Docker runtime).
Do you have an example image and network config that would demonstrate that?
(I'd love to understand the performance limits of Docker containers, but never played with them deeply enough since they are usually in >1s space which is too slow for me to care)