4 ms·
that 200ms rtt does matter to users. it becomes very noticeable. especially when you're writing an app, not a brochure site. You need to tree shake so you're no
by ehutch79 5y ago
that 200ms rtt does matter to users. it becomes very noticeable. especially when you're writing an app, not a brochure site. You need to tree shake so you're not serving a huge spa all at once.
I've see much worse times for users, and a cdn absolutely help with our staff in asia dealing with our internal apps.
Of course they're not always tripping up cloudflare and being shown captchas. I almost _never_ see a cloudflare captcha either... huh...
- gsich 5y agoWhat use has an app that requires a full RTT fot every buttonpress?
- ehutch79 5y agoNone? Why would every button press require a full rtt?
- gsich 5y ago>that 200ms rtt does matter to users. it becomes very noticeable. especially when you're writing an app, not a brochure site. You need to tree shake so you're not serving a huge spa all at once. Because this implies that.
- ehutch79 5y agoNo it doesn't. at all. Page load speeds by themselves can be painful. Open devtools and have your browser throttle to poor 3g speeds. Try browsing around. even well optimized sites. Now try uploading a couple dozen files through an api. This is legit what some users deal with. In New York state even, you don't need to go that far to find poor connectivity. Even if all your users have awesome home connections, think sales people taveling to a client. or on site inspections of a manufacturer in a warehouse that's mostly metal and has bad wifi.
- gsich 5y agoThen what does the 200ms have do with "writing an app"?
- ehutch79 5y agoApologies, your username looks like the one that tossed that number out as a what they assumed was a high number. 200ms latency isn't that bad, but I'm seeing more 800-2000ms latencies with some users depending on physical location. at some point latency kills usability. Especially when trying to get through a complicated QA or inventory process.
- withinboredom 5y agoThat latency is literally impossible unless they’re up in space somewhere, beyond satellite orbit. Your latency is most likely caused by CPU on low-end devices. A CDN won’t help you with that (and probably be harmful having to manage another TCP connection).
- simfree 5y agoI see latency spike like this often on T-Mobile LTE. One second your under 40ms ping, then your next ping clocks in at 794ms or 2100ms despite having good signal strength.
- nijave 5y agoI few years back I was seeing about 15-30s latency on 2G EDGE. Overloaded links can have high latency due to queuing which CDNs tend to help
- ehutch79 5y agoAny latency over he speed of light is possible. In this case you’re seeing people in bad places, like rural China, or Long Island...
- Dylan16807 5y agoIf you're on 3G I would expect sites to load in a similarly bad way with or without an extra most of 200ms of RTT.