Hi folks,
I've been a long time fan and occasional contributer here. While I have not posted in awhile I have continued to use IO Meter with these parameters over the last few years.
Here's a new data point - I went back to 2010 in this thread searching for the keyword "Linux", no luck.
I have recently discovered in our environment that Linux guests have terrible IO and needed a measure between Linux and Windows so I went back to IO Meter with the dynamo agent sending the results to the Windows GUI.
On the second test all things being equal, same Host R820/512GBRAM/10Gb/iSCSI/PS6510es array, running a Windows and Linux guest with the same resources (4CPU/2GB RAM/ext4-10GB) we found that Windows would get 58MB/sec on test 2 (RealLife-60%Rand-65%Read) but Linux would get 3MB/sec - almost 20x worse.
This was confirmed using a database benchmark program which was able to run on Windows and Linux - same ratio.
Could someone post results from a Windows and Linux guest on the same ESX host?
We have tried dozens of iterations and nothing is making significant differences.
We have a Sev 3 ticket open with VMware from last Thursday where they wanted to recreate it and were supposed to get back to us today, nothing yet.
So we opened a Sev 2 this morning but no one has talked to us yet.
We are at risk of losing 2 customers to this issue.
Ideas?
Thanks in advance.