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The New Linode Cloud: SSDs, Double RAM and much more

blog.linode.com

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Re: The New Linode Cloud: SSDs, Double RAM and much more

#251

Earlier quoted context omitted.

Anecdotally, I get notifications of maintenance outages every month with DO in NYC1 and NYC2. These are exceedingly, exceedingly rare with Linode's Atlanta DC. Also, stolen CPU on my DO boxes is super high, whereas this is very rare on Linode. You have less neighbors.

In the last two months there was 3 maintenance outages and 1 unscheduled at Atlanta. 0 at NYC1. http://status.linode.com http://www.digitaloceanstatus.com

I don't know about Linode, but I do know that DO does not report most of there outages on there status page.

With 3 out of 4 outages or 'troubles' at Digital Ocean, there is no report on there status page. Even when tens of people complaining about it on twitter and they replied on the tweets that they have an outage, there is nothing on the status page.

So I would not recommend comparing there status pages.

Re: The New Linode Cloud: SSDs, Double RAM and much more

#252

Earlier quoted context omitted.

287 MB/s vs 816 MB/s is huge. Linode is really doing a good job here. I have 4 VMs with them and am very happy. Can't wait to make this move.

I think these new nodes are still pretty lightly used, give it a few months and then do a comparison. Benchmarking VPS/cloud instances can be tricky since you might be on a quite node or a heavily utilized node. You really need to provision many machines and run the checks at random times over a period and then average the scores out. I upgraded some of my VMs and they all failed to boot on their own and I had to man…

Here's my DO results (AMS1). This server was busy and we're actively using it for 4+ months

  [root@server ~]# dd bs=1M count=1024 if=/dev/zero of=test conv=fdatasync
  1024+0 records in
  1024+0 records out
  1073741824 bytes (1.1 GB) copied, 6.29244 s, 171 MB/s

Re: The New Linode Cloud: SSDs, Double RAM and much more

#253
post #110
post #55

I forgot to benchmark the disk before I upgraded but here are some simple disk benchmarks on an upgraded linode (the $20 plan, now with SSD) $ dd bs=1M count=1024 if=/dev/zero of=test conv=fdatasync 1024+0 records in 1024+0 records out 1073741824 bytes (1.1 GB) copied, 1.31593 s, 816 MB/s $ hdparm -tT /dev/xvda /dev/xvda: Timing cached reads: 19872 MB in 1.98 seconds = 10020.63 MB/sec Timing buffered disk reads: 2558…

Throughput speed is not everything, in many situations latency is more important. Can you give results for this? dd if=/dev/zero of=test bs=512 count=1500 oflag=dsync I'm getting "6.40264 s, 120 kB/s" on my laptop's SSD, but on a proper server with a RAID card and cache enabled I get "0.187033 s, 4.1 MB/s".

DO @$40-AMS1

  1500+0 records in
  1500+0 records out
  768000 bytes (768 kB) copied, 1.17399 s, 654 kB/s

Re: The New Linode Cloud: SSDs, Double RAM and much more

#254

Earlier quoted context omitted.

If your hosts have, say, dual 4-way CPUs, and you're giving your VMs 8 vCPUs, then a single VM can execute per clock cycle since a VM needs all of it's vCPUs made available to the guest OS. This seems wrong to me. We're talking about virtualization; technologically, it is absolutely feasibly to have only one physical CPU running a VM even if the VM sees multiple virtual CPUs. And it seems like having this capability…

Certainly. Rather than retype the wheel though, I'm going to rely on some various posts: Gabe spells it out pretty well here: http://www.gabesvirtualworld.com/how-too-many-vcpus-can-nega... In a previous environment of mine, we ran dual socket, 4-way CPUs. VMs were configured with a mix of 1, 2, and 4 vCPU VMs. Our VMs appeared slow, especially on our 4-way systems. However, CPU utilization was low. More digging reve…

Fortunately, Linode runs Xen.

Re: The New Linode Cloud: SSDs, Double RAM and much more

#255

DO's biggest problem is their lack of "zero-downtime snapshot backup and upgrading". i've not used Linode but anyone know if theirs is any different?

Upgrades/downgrades requires transferring all your data from one server to another - so that means downtime. The bigger the server, the more downtime in transferring. As for backups, Linode backups seem to get a bad reputation. They do take a snapshot of a running instance - but reports from the forums indicate that they regularly fail, leaving you with a missing backup at some points. The only way of restoring a bac…

"The only way of restoring a backup is to deploy that backup as a new server."

Not true. You can restore a backup to a node as long as it has enough unallocated disk space. The simplest ways to create enough unallocated disk space are to create a new node or to delete or resize all your disk images.

Re: The New Linode Cloud: SSDs, Double RAM and much more

#256
post #127
post #93

So this makes Lindode practically on par with DO's $20 plan. Up till now $20 plan at DO was better now its just the choice of the brand. But here is one thing that DO provides and I think Linode too should, you get the choice to spin up a $5 instance anytime in your account for any small project or a test instance which you cannot on Linode.

Doesn't hourly billing address that issue? Linode now offers it.

Yeah, that's the impression I got with hourly billing as well.

Re: The New Linode Cloud: SSDs, Double RAM and much more

#257

Bummer, they're taking away 8 cores for the cheap plans and replacing it with 2. Does anyone know if the new processors will offset this difference? I don't know the specs of the processors. Linode's announcements usually come in triples...I'm excited for number three. Let's hope its some kind of cheap storage service.

That's the question I had too, thanks.

Re: The New Linode Cloud: SSDs, Double RAM and much more

#259
post #240

Earlier quoted context omitted.

Your anecdotes (just like everyones) are meaningless. If you some evidence that DO is inferior at the same price level as Linode then you should post it. I was with Linode and had to deal with constant outages (at Fremont DC) and went through two major hacking incidents where I found out through Reddit instead of from them. I've never been with a worse provider than Linode.

All these anecdotes make one wonder why these people aren't simply going to hetzner and ovh and simply get a dedicated server for just slightly more (meaning $25/month).

Well for me, it's because although they're cheap and dedicated, servers, they aren't particularly good machines and the support is pretty much what you'd expect at that price (very basic).

That being said, I do think they're great value, and I have a reverse bidding dedicated server from Hetzner, that I use as a test and staging server. But I wouldn't dream of using them for production instances though - for the amount you'd have to pay to beef up support and get access to things like out of band console access, you might as well pay for a server from Bytemark.

Re: The New Linode Cloud: SSDs, Double RAM and much more

#260
Updated benchmark results with 2GB vs 4GB vs 8GB vs 16gb plans from Linode vs DigitalOcean https://blog.centminmod.com/346. Definitely Linode has the faster cpus and disk i/o as you move up in plans >2GB. 16GB plans are pretty close though if you look at subtests in UnixBench and ignore the subtests affected by different base Linux Kernel versions used.
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