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I've realized that cat photos are more popular than posts about my research, so let's try to combine the two:
our upcoming OSDI paper, Pegasus, explained through photos of our cats
our upcoming OSDI paper, Pegasus, explained through photos of our cats
Skewed workloads are a challenge for storage systems. Some cat bowls are more popular than others.
This is often referred to as a long-tailed distribution.
(sorry, couldn't resist that one)
(sorry, couldn't resist that one)
Provisioning for the peak workload means that some servers have to run at low utilization
If we route the cats via a programmable switch instead, using it as a directory...
...we can forward each cat to the least loaded replica...
...and achieve close-to-uniform load balancing even though the workload is f̶l̶u̶f̶f̶y̶-̶ heavy-tailed
actual paper: Pegasus: Tolerating Skewed Workloads in Distributed Storage with In-Network Coherence Directories: with @JialinLi14, Jacob Nelson, @rellismichael, and Xin Jin
http://drkp.net/papers/pegasus-osdi20.pdf
This was the last piece of Jialin's PhD, so he got a cool hat. Max wants one too.
http://drkp.net/papers/pegasus-osdi20.pdf
This was the last piece of Jialin's PhD, so he got a cool hat. Max wants one too.
