In the early days of my foray into blogging I utilized Google’s Blogger for the first six months. I then decided to move to GoDaddy’s (shared) managed hosting which wasn’t as bad as some reviews would have you believe. A year later I decided to leave GoDaddy for RIMU Hosting. I left behind managed hosting for an un-managed CentOS Linux VPS (Virtual Private Server). While I was a former IBM AIX System Administrator and Linux enthusiast I wasn’t quite prepared for the effort required to setup and manage a simple Linux web server. While I enjoyed the challenge it took me quite sometime to get everything automated. As the traffic to my blog and the discussion forums grew I started running into the memory and bandwidth limitations of the plan I was using from RIMU so I decided to switch to Linode after reading some positive review (such as this one). I’m happy to say I’ve been using Linode for almost 18 months, since October 2011, and have never had any issues or problems.

There have been a number of significant upgrades at Linode over the past few months, so much so that I thought I would take a second to detail them here and shamelessly plug my referral link at the same time.

Linode NexGen: RAM Upgrade

Linode literally left the best for last since most virtual workloads are memory constrained. They are essentially bumping everyone up one level, a Linode 512 becomes a Linode 1G, a Linode 1024 becomes a Linode 2GB, so on and so forth. It should be noted that they are also increasing their pricing by $0.05 per month, example the Linode 1G is $20.00 and not $19.95.

Linode NextGen: The Hardware

Linode has upgraded their hosts with two Intel Sandy Bridge E5-2670 processors. The E5-2670 is at the high end of the power-price-performance ratio and each E5-2670 enjoys 20 MB of cache and has 8 cores running at 2.6 GHz. There’s a lot of processing power behind that virtual server depending on your needs.

Linode Nextgen: The Network

Linode has deployed a new Cisco Nexus 7000 and 5000 topology (very similar to the topology that I personally use) in their data centers. “To top things off we’ve increased the amount of outbound transfer included with all plans by 1,000%.  That’s right, 10 times the included transfer!”

Linode 512 upgraded from 200GB to 2000GB (2TB)
Linode 1G upgraded from 400GB to 4000GB (4TB)
Linode 2G upgraded from 800GB to 8000GB (8TB)
Linode 4G upgraded from 1600GB to 16000GB (16TB)
Linode 8G upgraded from 2000GB to 20000GB (20TB)

Storage increased by 20%

Linode 512 goes from 20GB to 24GB
Linode 1GB goes from 40GB to 48GB
Linode 2GB goes from 80GB to 96GB
Linode 4GB goes from 160GB to 192GB
Linode 8GB goes from 320GB to 384GB
Linode 12GB goes from 480GB to 576GB
Linode 20GB goes from 800GB to 960GB

My Thoughts

There’s definitely been quite a few changes over at Linode so I wondered what those changes might have done to performance. At the surface it certainly appears that the average Linode customer is now getting more. We’re getting 100% more memory, 20% more storage, 1,000% more bandwidth. So how what percent of a performance increase can we expect in processing?

We’ll I decided to run some UnixBench tests and compare these new tests with some previous results I posted in an article entitled Linode VPS Hosting I posted back in October 2011.

I started writing this article back in April 2013. That was before the Linode Manager password reset, which was explained by the security breach that was disclosed shortly thereafter. Throughout that time I’ve struggle to get performance numbers anywhere near what I captured in October 2011. I even attempted to engage Linode support and while they were cordial they gave me the typical ‘we can move you to a new host’ response without really engaging in an in-depth discussion around the horrendous performance numbers. I would write four or five paragraphs to which they would respond with one or two liners.

October 2011 Hardware

May 2013 Hardware

Here are the performance numbers of each side by side;

You can find the actual HTML results file online for October 2011 and May 2013.

It’s obvious that quite a few things have changed since I first tested Linode back in October 2011. The original testing was performed on a Linode 512 with 4 Intel Xeon L5520 @ 2.27GHz (4522.0 bogomips). The most recent testing was performed on a Linode 2048 with 8 Intel Xeon CPU E5-2630L 0 @ 2.00GHz (4000.1 bogomips). While the original hardware configuration offered 4 cores the latest hardware offering provides 8 cores. I’ve been using the 1 parallel process testing numbers to help gauge the performance of a single core. The disk IO numbers look very poor but when I perform a basic disk IO test everything seems pretty good.

[root@earth ~]# dd if=/dev/zero of=test bs=64k count=48k conv=fdatasync
49152+0 records in
49152+0 records out
3221225472 bytes (3.2 GB) copied, 45.4488 s, 70.9 MB/s

Perhaps the original data I collected in October 2011 was flawed, perhaps I was the only user on that physical server and now years later the Linode environment has become much more crowded – similar to Comcast Cable Modem Internet. It worked great the first few years but after everyone in the neighborhood started subscribing the performance really tanked.

I could probably use tools like Bonnie++ and Nbench to help validate my results but I wouldn’t be able to compare them against any previous results. I’d probably only use these tools if I was going to find a new hosting provider and wanted to benchmark their environments against what I have available today. I even went as far as to download UnixBench v5.1.3 and re-ran my tests only to score a 149.2 compared to the original result of 191.6.

With all that said the server and websites appear to be running fine.  The Web Page Performance tests for this site are pretty decent, 2.944 seconds (first view) and 1.623 seconds (second view). Perhaps the performance numbers will change when my server gets migrated to a host with the new Intel Xeon E5-2670 CPUs.

In summary I’m not sure what to say… I had thought this article would be an easy post to write but the performance numbers followed by the security incident have left me wondering if Linode is the hosting provider for me. Performance benchmarking within a virtual environment is really difficult given all the different components and the ever changing workloads.

Cheers!

I ran some quick and dirty benchmarks using Unixbench (1 parallel test) and here’s what I found;

Note: I currently use the IBM x345 Series server as my test and development server so I don’t have to worry about destroying my live production server.

A number of the servers above are virtualized with either VMware or XEN and some are physical. I’ve provided some comparison data in servers 1-4, the two of interest are 5 and 6.

You can see from the numbers that the Linode server beat out the RIMU server by quite a margin. I also chose to have the Linode server placed in their Newark, NJ data center which is geographically closer to me in Pennsylvania than the Dallas, TX data center that my current VPS resides in. With that location change I noticed a big delta in the RTTs to/from the two locations. From my Verizon FiOS home broadband I get around 50ms to the Dallas, TX data center while I’m getting around 20ms to the Newark, NJ data center.

There are other pros and cons between RIMU and Linode which I won’t completely go into here but in my specific example it was the storage and transfer bandwidth that caused me to look elsewhere. I have nothing bad to say about RIMU, they’ve given me more than 18 months of great service.

Last week I moved the blog (that’s this site) to the Linode VPS and it seems to be running great. If everything continues to run smoothly I’ll migrate the discussion forums and remaining sites over to Linode and cancel my RIMU account over the next two weeks.

Have you noticed the speed increase or any other issues with this site?

Cheers!

It wasn’t too difficult but it did take some fiddling with the Apache configuration to create the various virtual hosts and then importing the various databases and re-creating the various database user accounts.

I’m really pleased with the immediate performance increase.

Please leave a comment here if you have any issues and/or problems.

Feel free to let me know how the site performs for you!

Thanks as always for your support!
Cheers!

Update: May 8, 2010 at 11:15PM
I’ve just noticed my first big problem.. seems the RSS/XML feed is not working because of a whitespace issue.  It may take some time before I can get this one fixed… might need to roll back to the old server for a while.

I’m now coming up on the renewal for Go Daddy and I’m considering upgrading to a virtual private server (VPS).

Why? In my role with my current employer I work with hundreds (almost thousands) of servers, both virtual and physical. It’s always been a little depressing to know what’s possible from a real server and then settling for what I can personally afford with this being a hobby. In addition to my wanting more control over the environment I’ve seen a significant growth in traffic to both my blog and the discussion forums which are hosted on the account.

Over the past 6 months the traffic to my blog is peaking daily at around 1,000 page loads which is pretty decent in my opinion for the amount of material I have posted and the narrow focus of that material. The traffic to the discussion forums have really started to ramp up over the past seven months.

As both of those endeavors have grown I’ve noticed the response time of the site go up. I’m the first to recognize that while some of the reason is the traffic a large portion is also the number of features I’ve added to the site over the past 2 years.  Thankfully the little bit of advertising I’ve been running has helped defray the current hosting costs (thanks for the support!). With that in mind I’m considering stepping up to a VPS solution in order to provide a significant performance boost and provide a platform for future projects.

Anyone have any recommendations on VPS web hosting? I’m probably looking at a budget of  $30-$50/monthly, let’s not forget it’s just a hobby and I have no intention of giving up my day job! (I’m told my grammar is terrible and I need to spend more time proof reading).

I was considering RimuHosting based on a blog post from Colin McNamara, not directly related but anyone with that name must be smart ;).

Cheers!

With respect to WordPress I have just one word – AWESOME! I’ve spent quite a bit of time sifting through the cascading style sheets of the themes and dissecting the PHP code trying to understand all the ins and outs. There is literally a dizzying array of plugs-in and add-ons out there for WordPress that extend the solution’s functionality ten fold. You may have noticed that I’ve been adding a few of the more mainline plug-ins every week (don’t want to overload the site and/or detract from it’s main purpose – educating the readers).

As a side note this blog was recently reviewed by Blogged and received an 8.3 rating. If your interested or just bored why don’t you wander over and post your own review of this blog.

Cheers!

Update: August 19, 2008
I thought I would just post an update with respect to my experiences with GoDaddy. I’m happy to say that I haven’t yet had any issues or problems. The traffic to this blog continues to grow daily but the site still feels fairly responsive. I’ve also added quite a few different WordPress plug-ins and just can’t say enough good things about WordPress.

Cheers!