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VPS performance issue

CreatedWednesday, June 23, 2010 12:01 AM
ID1243
StartThursday, July 15, 2010 12:00 AM
EndFriday, August 06, 2010 2:00 AM
SeverityHigh Impact
ResolvedResolved

We're currently experiencing performance issues with the storage that our VPS's use. Symptoms you may experience can range from occasional lags when running commands or programs in your VPS, right up to fairly often-occuring disk i/o pauses.

We're working on this with a high priority and will update this status item as we work through the issue.

So far we've all but eliminated network and network devices as the bottleneck, as well as the storage itself. We're currently looking at our ISCSI configuration, which is where the slowdown seems to occur at this point.

UPDATE 2010-08-12: We made a configuration change on 2010-08-06 that increased the proportion of CPU time available to each host server when customers VPS' CPU utilization was high.

In monitoring performance in the following week, we are satisfied that this change has resulted in the host servers processing I/O requests quickly even during peak VPS utilization.

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