Rackspace Performance vs Standard Cloud Server Disk I/O

I just spun up a Rackspace High Performance Cloud Server and ran some i/o benchmarks on it and compared it to one of my standard cloud servers. Here are my findings.

This is the script that I ran to gather I/O stats:

As you can see, it’s a simple test that writes 2GB of 0’s to a file, turns around and reads it, then runs the test nine more times.

First, here are the stats from my standard cloud server:

Average Write Speed: 127.46 MB/s
Average Read Speed: 93.49 MB/s

Now here are the results from the High Performance Server:

Average Write Speed: 467.8 MB/s
Average Read Speed: 175.5 MB/s

As you can see, given my simple test, High Performance Cloud Servers have a write speed that is 267% faster and a read speed that is 88% faster than the standard Cloud Servers from Rackspace. Pretty interesting!

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November 22, 2013

Posted In: Filesystems, Rackspace

Filesystem I/O Speeds Benchmarking Perl Script

I wrote a quick perl script to test the read and write speeds of a file system in Linux. Below is the contents of the script.

 

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March 7, 2013

Posted In: Filesystems, Linux, Perl Tips