Running a recent S3 performance test across several regions. Latency and downlinks look good, but there’s some variance. For this…
Author: Cloudharmony Team

Cloud Harmony: Data, Analytics, and Insights into Cloud Computing
Hello everyone out there in technology world. At Gartner, we strive to provide our clients with the insights they need…
DNS Marketshare Alexa Fortune 500 | Feb 2015
This post provides current marketshare statistics for managed DNS services amongst top Alexa websites and US Fortune 500 companies. The…
Compute Marketshare Alexa Fortune 500 | Feb 2015
This post provides marketshare analysis for compute services (virtual machines) and top Alexa and US Fortune 500 websites. We compile…
CDN Marketshare Alexa Fortune 500 | Feb 2015
This post provides marketshare analysis for CDN services and top Alexa and US Fortune 500 websites. We compile this marketshare…
Compute Marketshare Alexa Fortune 500 | Dec 2014
This post provides marketshare analysis for compute services (virtual machines) and top Alexa and US Fortune 500 websites. We compile…
CDN Marketshare Alexa Fortune 500 | Dec 2014
This post provides marketshare analysis for CDN services and top Alexa and US Fortune 500 websites. We compile this marketshare…
DNS Marketshare Alexa Fortune 500 | Dec 2014
This post provides current marketshare statistics for managed DNS services amongst top Alexa websites and US Fortune 500 companies. The…
DNS Marketshare Alexa Fortune 500 | Nov 2014
This post provides current marketshare statistics for managed DNS services amongst top Alexa websites and US Fortune 500 companies. The…
CDN Marketshare Alexa Fortune 500 | Nov 2014
This post provides marketshare analysis for CDN services and top Alexa and US Fortune 500 websites. We compile this marketshare…
Compute Marketshare Alexa Fortune 500 | Nov 2014
This post provides marketshare analysis for compute services (virtual machines) and top Alexa and US Fortune 500 websites. We compile…
CDN Marketshare Alexa Fortune 500 | Oct 2014
This post provides marketshare analysis for CDN services and top Alexa and US Fortune 500 websites. We compile this marketshare…
DNS Marketshare Alexa Fortune 500 | Oct 2014
This post provides current marketshare statistics for managed DNS services amongst top Alexa websites and US Fortune 500 companies. The…
Compute Marketshare Alexa Fortune 500 | Oct 2014
This post provides marketshare analysis for compute services (virtual machines) and top Alexa and US Fortune 500 websites. We compile…
CDN Performance Review | Sep 2014
This post summarizes CDN performance using data collected from our cloud speedtest. Information about the speedtest, testing methodology and other…
Compute Marketshare Alexa Fortune 500 | Sep 2014
This post provides marketshare analysis for compute services (virtual machines) and top Alexa and US Fortune 500 websites. We compile…
CDN Marketshare Alexa Fortune 500 | Sep 2014
This post provides marketshare analysis for CDN services and top Alexa and US Fortune 500 websites. We compile this marketshare…
DNS Marketshare Alexa Fortune 500 | Sep 2014
This post provides current marketshare statistics for managed DNS services amongst top Alexa websites and US Fortune 500 companies. The…
Comparing Cloud Compute Services | Jul 2014
Over the years we’ve spent a good amount of time testing and thinking about how to compare cloud services. Some…
DNS Marketshare Alexa Fortune 500 | Jul 2014
This post provides current marketshare statistics for managed DNS services amongst top Alexa websites and US Fortune 500 companies. The…
DNS Marketshare Alexa Fortune 500 | Jun 2014
This post provides current marketshare statistics for managed DNS services amongst top Alexa websites and US Fortune 500 companies. The…
CDN Performance Summary | 2011-2014
This is the first in what I hope to be monthly series summarizing CDN performance using data from our cloud…
DNS Marketshare Alexa Fortune 500 | Apr 2014
This post provides current marketshare statistics for managed DNS services amongst top Alexa websites and US Fortune 500 companies. The…
DNS Marketshare Alexa Fortune 500 | Feb 2014
This post provides current marketshare statistics for managed DNS services amongst top Alexa websites and US Fortune 500 companies. The…
DNS Marketshare Alexa Fortune 500 | Jan 2014
This post provides current marketshare statistics for managed DNS services amongst top Alexa websites and US Fortune 500 companies. The…
Marketshare Alexa Fortune 500 | Oct 2013
This post provides current marketshare statistics for managed DNS services amongst top Alexa websites and US Fortune 500 companies. The…
DNS Marketshare Alexa Fortune 500 | Sep 2013
This post provides current marketshare statistics for managed DNS services amongst top Alexa websites and US Fortune 500 companies. The…
DNS Marketshare Alexa 10000 Fortune 500 | Jul 2013
This post provides current marketshare statistics for managed DNS services amongst top Alexa websites and US Fortune 500 companies. The…
Value of the Cloud CPU Performance
Abstract This post compares CPU performance and value for 18 compute instance types from 5 cloud compute platforms – AWS…
DNS Marketshare Alexa 10000 + Fortune 500 | May 2013
This post provides an update on DNS marketshare statistics for May 2013. This is a follow up to our previous…
DNS Marketshare Alexa 10000 + Fortune 500 | April 2013
This is a followup from last month’s DNS marketshare post. In this post we use the same top 10,000 Alexa…
DNS Provider Marketshare Summary | March 2013
Every few months we mine the DNS servers used by the top 10,000 Alexa sites. We then use various techniques…
Comparison and Analysis of Managed DNS Providers
Introduction This blog post is the culmination of year’s effort researching and developing methods for analyzing and comparing managed DNS…
Is Joyent Really 14X Faster than EC2 and Azure the Fastest Cloud
Many are skeptical of claims that involve benchmarks. Over the years benchmarks have been manipulated and misrepresented. Benchmarks aren’t inherently…
Encoding Performance Comparing Zencoder Encoding Sorenson Panda
A few months ago we were approached by Zencoder to conduct a sponsored performance comparison of 4 encoding services including…
An Unofficial EC2 Outage Postmortem – The Sky is Not Falling
Last week Amazon Web Services (AWS) experienced a high profile outage affecting Elastic Cloud Compute (EC2) and Elastic Block Storage…
Introducing Web Services for Cloud Performance Metrics
Over the past year we’ve amassed a large repository of cloud benchmarks and metrics. Today, we are making most of…
Cloudscaling KT Private Cloud Validation Using Benchmarking
A few months ago we were contacted by Cloudscaling CEO Randy Bias regarding our work in benchmarking of public IaaS…
Benchmarking of EC2s New Cluster Compute Instance Type
Two months ago Amazon Web Services released a new “Cluster Compute” EC2 instance type, the cc.4xlarge. This new instance type…
Cloud Server Benchmarking Part 5 | Encoding Encryption
This is the fifth post in our series on cloud server performance benchmarking. In this post, we’ll look at encoding…
Cloud Server Benchmarking Part 3 | Java Ruby Python PHP
This is the third post in our series on cloud server performance benchmarking. The previous blog posts, What is an…
Cloud Server Benchmarking Part 4 | Memory IO
This is the fourth post in our series on cloud server performance benchmarking. In this post, we’ll examine memory IO…
Disk IO Benchmarking in the Cloud
This is the second post in our series on cloud server performance benchmarking. The previous blog post, What is an…
Google Storage a CDN Storage Hybrid
We received access to a Google Storage for Developers account today, and being the curious types, immediately ran some network…
What is ECU CPU Benchmarking in the Cloud
NOTE: This post has been updated after it’s original writing. The original CPU performance metrics did not accurately depict performance…
Cloud Server Performance Benchmarking
We are in the process of developing a benchmark suite to run in the cloud and use as a basis…
Connecting Clouds – Summary of Our Intercloud Network Testing
Over the past few months we’ve been conducting some intercloud network testing. To get started, we first setup testing nodes…
Cloud Speed Test Results
Over the past 2 months we’ve used Amazon’s Mechanical Turk to pay users with high speed, mostly residential Internet connections,…
Cloud Storage Showdown Part 2 | What is The Best Storage For Your Cloud Server
In the previous post we discussed cloud storage for consumers. Probably a more common use case for cloud storage is…
Cloud Storage Showdown Part 1 | Cloud to Consumer
This is a follow up to our previous post Cloud Speed Test Results where we analyzed the results from our…
RE: BitSource Rackspace Cloud Servers Versus Amazon EC2 Performance Analysis
The BitSource was recently hired by Encoding.com to conduct a performance comparison between EC2 and Rackspace Cloud. The full details…
Cloud Speed Test
We are working on a cloud speed test. This speedtest functions by using flash to download a 1MB test file…
Bandwidth Disparity In The Cloud
Over the past 2 months we’ve been using Pingdom to monitor downlink throughput for various cloud services. We placed a…
Cloud Monitoring
Over the past few months we’ve been cloud monitoring uptime and bandwidth for various cloud services including CDNs (i.e. Akamai,…