8 ms·
Starlink is better than satellite and DSL but not as fast as fiber or cable
- guenthert 5y ago"Starlink's median latency, 45 milliseconds (ms) is close to fixed broadband's 14 ms. " How is 3 times as much 'close'?
- jeroenhd 5y agoIt's close compared to latencies over traditional sattelite internet where a ping of over 400ms is not uncommon. The article quotes a latency if over 600 or 700ms. At least 45 is in the same order of magnitude of common broadband. 45ms reminds me more of 3G than of any normal internet connection, but that's still much more useful than the latencies the sattelite competition offers.
- db48x 5y agoWe’re talking about humans here. A human might notice 45ms in a shooter, but not when just surfing the web. Compare that with 500-1000ms latency from older forms of satellite service, or 250ms from old dial–up service.
- cma 5y ago>A human might notice 45ms in a shooter, but not when just surfing the web. You are forgetting round-trip request latency, handshakes, and dependent resources (don't know what to fetch until receiving the first thing, then the second level of things, etc., this can stack to multiple seconds). High latency is very bad for browsing. The main things it is fine for are streaming audio/video (non-interactive), large downloads, and backing up/uploading files.
- db48x 5y agoYou’re not wrong, but not relevant either. If your RTT to the server is 15ms, then connecting to that server with TLS1.2 will take 4×15ms = 60ms. On Starlink that will currently take 4×45ms = 180ms. Yes, 180ms is three times 60ms, but to a human that is irrelevant. Humans can’t detect time intervals of less than 100ms, and can only barely detect intervals less than 200ms. In a direct comparison between the two, humans will rate the 60ms connection as instantaneous and the slower 180ms connection as nearly instantaneous. This makes them “close” as the article described, especially when compared to old–school satellite links where the RTT can be insane. And the handshake time doesn’t compound; there is no need to open a new connection to the server for every resource needed by a webpage. The web browser just keeps reusing the same connection until it runs out of resources to fetch from the server.
- cma 5y ago> And the handshake time doesn’t compound; there is no need to open a new connection to the server for every resource needed by a webpage. The web browser just keeps reusing the same connection until it runs out of resources to fetch from the server. Third party analytics and other resources often means it compounds even for handshaking, but dependent resources can compound too even on the same server even if they don't each need a handshake.
- only_as_i_fall 5y ago>By comparison, Viasat, 630 ms, and HughesNet, 724 ms, are almost unusable for these purposes. They're saying it's close compared to starlink's competitors which aren't even the same order of magnitude. In context I think it's a fair assessment.
- abstractbarista 5y agoYea a buddy tried out HughesNet and the latency was 1~1.5 seconds. Loading anything was death.
- sschueller 5y agoThey are also thousands of miles further out. I believe hugesnet services almost the entire globe with just 3 satellites.
- jjeaff 5y agoWho is getting 14ms on their fixed broadband. Last 3 places I can remember, I had cable and fiber to the home. My two cable connections would get 25-35ms at best. The fiber to the home wasn't much different but did go sub 20ms on occasion.
- montecarl 5y agoI am on Google Fiber and I get < 10 ms to anything served out of a CDN or to servers in my own state. If I ping google, reddit, amazon, etc they are all about 8 ms.
- vel0city 5y agoAT&T FTTH in Texas. Its 2-3ms from my home to Google's CDNs. 2-3ms to Cloudfront. 4ms to akamai. Its 3ms to my friend's house, 1ms to my work's office. Its 2ms to my colo in town. 40ms is me essentially connecting halfway across the country. A Digital Ocean droplet in SF or NY is ~40ms.
- jjeaff 5y agoHow are you measuring this? Because I just ran a ping from my colo server in a datacenter and am seeing 11-12 ms when I ping google CDN.
- vel0city 5y agoAll of this was measured on my residential FTTH internet from a wired desktop just using the Windows ping utility. 11-12ms to a Google CDN from your colo? That's insane to me. Pinging from my colo to Google using the ping utility from iputils for 50 packets gives an average ping of 1.6ms. Akamai pings at 2.1ms.
- jjeaff 5y agoOk, so I ran a ping again from my data center server. And for CDN.google.com, I get average of less than 0.2ms ping. But, when pinging www.gstatic.com, that is when I get more like 7-10ms. I'm not sure what the difference is between the two.
- JoshTko 5y agoMusk Feb 2021 "Speed will double to ~300Mb/s & latency will drop to ~20ms later this year" https://twitter.com/elonmusk/status/1363763858121256963?lang=en https://twitter.com/elonmusk/status/1363763858121256963?lang... Again on Jun 2021 https://twitter.com/elonmusk/status/1272363466288820224?lang=en https://twitter.com/elonmusk/status/1272363466288820224?lang...
- modeless 5y agoThere are plenty of 300 Mbps+ speed tests posted on r/Starlink. But that's peak, vs the average that Speedtest is showing. Starlink's bandwidth and latency are way past good enough at this point. The issue with Starlink currently is reliability. Many people experience dropouts and jitter that make it unsuitable for video conferencing or gaming. This is often caused by people being unable to meet the requirement that the dish have a continuous unobstructed view of most of the sky, unlike a traditional satellite dish that stays pointed at one tiny section of sky. This will improve as more satellites are launched.
- mensetmanusman 5y agoThere will be a market for large flag pole-like installations that are lightning resistant and are above the tree line.
- lytedev 5y agoMaybe I'm opening a can of worms here, but isn't Elon's Twitter an unreliable source of factual information when it comes to promises about the future capabilities of his companies?
- mcguire 5y agoDidn't the SEC have a chat with him about that?
- AtlasBarfed 5y agoThe SEC only had a chat with him because it has to maintain the facade that it does something. The mortgage crisis showed that the SEC is a toothless revolving door of rubberstampers. And still is.
- JohnTHaller 5y agoThey left out T-Mobile Home Internet from the comparison. It's a more than viable option if you're in the right location. You'll usually see faster speeds (about double) and lower latency (closer to standard broadband) than Starlink based on my analysis of a half-dozen recent reviews. It's also much cheaper, $0 up front and $60/mo vs Starlink's $499 up front and $99 a month. Starlink, of course, covers much more remote areas than T-Mobile Home Internet will.
- bpodgursky 5y agoHonestly I'm far more interested on Starlink's impact in the developing / unfree world than in access in rural areas in the US. Not that the latter isn't worth fixing, but it's a more gradual shift there rather than a paradigm shift.
- stelonix 5y agoWhat do you mean by "unfree world"? Is it America's pariahs or something?
- neaanopri 5y agoI think anywhere with significant censorship, such as mainland china.
- bpodgursky 5y agoAnywhere without free internet access.
- vel0city 5y agoFlying some drones or planes every now and then will find most users of unapproved satellite terminals. Satellite internet won't save the world from censorship.
- jazzyjackson 5y agoWhy would China allow star link to operate in China without following Chinese laws? I don’t see Elon shipping clandestine transmitters to the people of Xinjiang, not if he wants any legitimate customers in China. Really, star link is a business, they want paying customers-that means complying with local laws. Besides, censorship is not a uniquely Chinese policy, America seems to be exporting more of it lately.
- virtuallynathan 5y agoI see speeds of up to 415Mbps down, 65Mbps up, and latency as low as ~16ms. I regularly see 200Mbps down, and I cap the upstream to 20Mbps to help with bufferbloat. Latency is usually around 20-40ms.
- abstractbarista 5y agoThat's excellent! I have a friend in a very rural area served by only 5Mb/s download over CenturyLink DSL. This would be perfect for them.
- fassssst 5y agoI want to see a latency distribution, not summary stats.
- 11thEarlOfMar 5y agoDownload Speeds: Alabama: 168 Mbps Indiana: 68 Mbps Canada: 87 Mbps France: 140 Mbps Germany: 108 Mbps The wide range of service is due to the full constellation not being deployed yet? Once fully deployed, will service become more consistent?
- gpm 5y agoI'd expect to continue to see regional variability based on density of subscribers, latitude, and quality of nearby ground stations. Service should become faster in general though based on SpaceX statements, and based on the fact that they'll have a lot more bandwidth available with more satellites in the sky.
- LeoPanthera 5y agoI'd imagine there will still be regional differences. Even with satellite-to-satellite links they're still going to want to route your data to the nearest ground station as fast as possible, so your performance is going to be related to how good your nearest ground station is, and how congested it is.
- xt00 5y agoHave there been total addressable market numbers published for starlink in US / Canada? Like lets say there are maybe 20% of people in US that starlink could address -- internet service typically services a household, so unclear what the math is there, but maybe 3 people per household, so total addressable market of say 350 M * 0.2 / 3 = 23 million households.. so a quick search on subscriber number for Hughesnet is 1M subs.. so maybe a target for SpaceX would be to get 10M subscribers? 10M of the access terminal things if they cost $500 each would be 5 billion just to pay for those.. $100 / mo for 10M people is 1B per month -- so seems like the target for subscribers world wide must be closer to 100M otherwise the economics don't seem too great...
- ricopags 5y agoAny current TAM would be leaving off the amount of people who live in cities and can now exit to live "off-grid" with tesla solar and starlink. I anticipate at least a few "we should live in a commune" groups making good on their longstanding threats.
- silicon2401 5y agoI really hope Starlink gets big. I have no attachment to Musk or Starlink itself, but I hope to live more and more remotely as I get older and the prospect of having decent internet makes the dream feel more attainable (I want to be a hermit but still have reasonable amenities like access to information).
- wrenky 5y ago> To no great surprise, Ookla found Starlink beats HughesNet and Viasat handly. The company found that "Starlink was the only satellite internet provider in the United States with fixed-broadband-like latency figures, and median download speeds fast enough to handle most of the needs of modern online life at 97.23 Megabits per second (Mbps) during Q2 2021. HughesNet was a distant second at 19.73 Mbps and Viasat third at 18.13 Mbps." This is really deceptive. You can actually get really insane speeds on HughesNet/Viasat, the issue at hand is the service profiles available- Both HuguesNet/Viasat have 20Mbps down plans. If starlink goes full release at 100Mbps then sure? But that's highly unlikely unless they implement bandwidth caps or dont sell to the public (or limit subscribers to a tiny percentage?), as satellite bandwidth is extremely constrained (ESPECIALLY for leo constellations). Where starlink is a clear undisputed winner is latency (not capacity). You'll actually be able to make video calls and play games on a starlink connection.
- saddlerustle 5y agoLEO constellations have way more aggregate bandwidth than GEO satellites
- wrenky 5y agoAggregate yes, but not where you need it all the time! Customers are not evenly distributed across the earth, they are concentrated in regional areas on land. If you look at usable bandwidth (ie, satellites verhead at any point) LEOs drop off substantially.
- sschueller 5y agoAlso weren't some ISPs caught fudging speedtest.net by specifically making the connection faster when doing a speed test? I remember Comcast doing first x MB bursts which would result in inaccurate fast results.
- AtlasBarfed 5y agoI can't believe I'm defending Comcast, but it does seem to be a good idea to serve requests with high initial bandwidth since most of them aren't sustained downloads. That of course doesn't leave out that they'll detect being benchmarked like auto companies do with emissions testing and then switch to fake-out mode.
- LeifCarrotson 5y agoIt's interesting to me that they're using Ookla (speedtest.net) data for this analysis. For two reasons: First, I know my old Comcast cable internet used to vary widely - at 7am, I could get 80 Mbps, but at 7pm, I was lucky to be able to download the whole speedtest.net page at all. I rarely would want to run a test when it was fast, but as people started to sign on and it degraded I think the natural impulse is to do a speed test. Second, other providers like Google, Netflix, and ISPs offer integrated speed tests, so there's likely some selection bias for people who will still go to speedtest.net. Note - I rejected my Comcast cable in favor of T-Mobile home internet, it's cheaper and more reliable. Which really says something about Comcast mismanagement of their resource, they've got a coaxial connection to my house but T-Mobile can do better wirelessly...
- mypalmike 5y agoIt sounds like you had a bad install. I had multiple techs come out back when I had Comcast with similar performance issues, and finally one of them took the time to diagnose and fix some wiring issue at the pole. All the flakiness disappeared immediately.
- BitwiseFool 5y agoConsider this, you don't have to be a customer of Comcast, HughesNet, or AT&T anymore.
- wil421 5y agoYea but I’m not sure a Musk company is that much better. Tesla has lots of promises over the years about FSD combined with pricing swings. I pay Comcast $100 for a Gigabit that’s reliable for voice calls. Looked into Starlink but couldn’t justify the download/upload speeds for the price or the loss of service. Not sure why a lot of people say it’s for the country. I’m barely outside of a major metro area and was eligible for it a while back.
- BitwiseFool 5y agoI literally hate Comcast.
- wil421 5y agoYou have no idea how bad it hurts me to use them. AT&T only offers crappy DSL at my place. They wired my neighborhood up for fiber and stopped 5 houses in each direction. They want thousands of dollars to complete the line to my house and the neighbors in between. My last house had AT&T fiber with symmetrical gigabit. Comcast is 1Gb up and 50Mb down, good luck ever seeing 50Mb and it used to be 25Mb max. At my families vacation house Comcast is the only option. It was the same when I lived in apartments. They would make deals with the complex to be the sole provider.
- rexf 5y agoComcast is awful. We have comcast in the bay area, but we get constant outages throughout the day making the internet service extremely unreliable. AT&T DSL isn't a real contender to Comcast cable, so Comcast is the only realistic option. If I could switch off Comcast (to another cable internet provider or fiber), I would do so in a heartbeat. Comcast has been a consistent, horrible monopoly.
- walrus01 5y agoMy starlink connection is averaging about 0.08% packet loss to its terrestrial gateway (first hop of real world ARIN IP on the outside of the cgnat) over a period of 30 hours. I have a tree obstruction in 1/12th of the measurement system it uses. The DOCSIS3 cable modem connection from the local last mile provider at the same location is doing much worse. Up to 1.5% over 3 hour periods and 1.2 to 3.5% over 30 hour periods. This is as measured by a fairly rudimentary smokeping installation that's set to 60s intervals, a widely varied set of targets, and 20 'fping' per measurement.
- andrew-dc 5y agoGreat Title. Saved me a click. Thanks. But seriously, if I was asked a multiple choice question of where Starlink would fall, this probably would have been my guess. As others point out, it's really the cost/benefit trade-off that will matter.