API Head-to-head Update : AWS S3 Vs Windows Azure Table Storage Vs Rackspace Cloud Files

 | #CloudStorage#Rackspace#Azure#AWS

This is an update to my last API head to head from August 2014, I’m nothing if not consistent with my inconsistent posting. I’ve recently changed jobs to a new company that is moving to Azure but has some legacy Rackspace assets, so I thought it’d be fun to redo the test with Rackspace added. Worth noting that the Rackspace support for C# is completely non-existent. The official Rackspace SDK hasn’t been updated since 2013 and this test is using the openstack.net SDK which hasn’t been updated since 2018.

The code

Initialise Provider

CloudIdentity cloudIdentity = new CloudIdentity()
 APIKey = "mykey",
 Username = "myusername"
var provider = new CloudFilesProvider(cloudIdentity);

Create container


Upload file

provider.CreateObjectFromFile(containerName, testFile, blobName);

List Blobs (objects in Rackspace parlance)


Delete file

provider.DeleteObject(containerName, blobName);

Delete container


Can’t argue with the simplicity of the code, once you’ve initialised the provider, everything is one line.

The results

Worth noting that I don’t have the original test file, so the file being uploaded here is this one I happened to have lying around. It is only 1k larger, so don’t expect it will have a massive effect on the results.

Operation S3 Azure Rackspace
Create Container 847 668 1915
Upload 7Kb file 83 92 230
List Blobs (1) 40 172 51
Delete Blob 47 35 112
Delete Container 240 45 68

I ran the tests a few times and the numbers fluctuated but the positions pretty much stayed the same, except the Upload file winner switched between S3 and Azure.


Rackspace was slowest, but that isn’t terribly surprising considering I was using a third-party 2-year old library, it isn’t necessarily a realistic comparison, just for my own amusement.

About Alan Parr

Photo of Alan Parr

I am a .Net developer based in the Midlands in the UK, working on Azure, .Net Framework, .Net Core, and just generally playing around with anything that interests me. I play snooker (badly), archery (acceptably) and am a recovering Windows Phone user.