Wednesday, January 17, 2018

Possible Mitigation for system performance after 'meltdown' bug patching

This is an interesting read on database performance (not specific to MySQL) after patching to secure data on multi tenant system.

https://blog.appoptics.com/visualizing-meltdown-aws/

Copied from the above article:

Applications that make frequent systems calls to read/write data either over network sockets or from disk systems will need to be better tuned for batching. Incurring small I/O operations is now more costly, and engineers will need to optimize their code to reduce the frequency of such calls. Finding the sweet spot between larger batch sizes and latency is difficult and will require software that adapts for multiple variables simultaneously. It was promising to see that the Kafka consumer libraries were able to optimize for this dynamically as network call latency increased.

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