For better cloud performance, either go deep or go wide

analysis
Jul 17, 20152 mins

You can spend your money on adding cloud resources or, better, on refactoring your apps to be more efficient

“My cloud application performance is lacking.” That’s the complaint I hear from many people these days after they’ve made the migration to the cloud and are left wondering why a task that used to take 10 minutes now takes an hour or more.

In many instances, the issue is application design. On dedicated hardware, the application runs fine, but on a multitenant cloud platform, the application does not use the platform correctly.

Most people would rather not modify their applications when porting to the cloud — the lift-and-shift approach. But by not refactoring the application to use at least some cloud-native features, you’ll likely encounter performance problems.

Many enterprises toss more cloud machine instances at the problem, and it might seem to make the problem go away. But your cloud bill will be larger than it needs to be, and the application will likely not provide optimized performance.

The issue boils down to a question of going deep or going wide with your use of resources.

Going deep

You focus on using as few machine instances as possible, but you use those instances in much more efficient ways. In many respects, this is like on-premise computing because you’re limiting yourself to a certain number of servers. It forces the application developers to be much more efficient and effective.

Going wide

You fire up more machine instances, as you need them. This approach increases performance by launching more compute or storage resources. This plan does not require much, if any, application modifications, so it’s a popular strategy at enterprises that are OK with tossing money at an application to ensure performance. The downside is the extra cost, as well as the fact that applications often become unwieldy — and difficult to manage — when they get too widely distributed.

The cloud supports both approaches. With the availability of almost unlimited resources, you can pretty much ensure performance of even the most poorly designed applications and databases. But focusing on the efficient design of applications, using cloud-native features, provides the best bang for the buck in the long run.

David Linthicum

David S. Linthicum is an internationally recognized industry expert and thought leader. Dave has authored 13 books on computing, the latest of which is An Insider’s Guide to Cloud Computing. Dave’s industry experience includes tenures as CTO and CEO of several successful software companies, and upper-level management positions in Fortune 100 companies. He keynotes leading technology conferences on cloud computing, SOA, enterprise application integration, and enterprise architecture. Dave writes the Cloud Insider blog for InfoWorld. His views are his own.

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