LinuxCon + ContainerCon + CloudOpen China 2018

System memory resource is a key system performance aspect. Because of nature of memory resource management in OS kernel, there is always a tradeoff between utilization and QoS. By increasing the memory utilization, memory QoS problems could be more easily triggered by inadequate capacity planning，unexpected software working-set or workload changes, or software and hardware contentions among the applications co-located in the same system. This talk will give a brief introduction to the various memory QoS challenges found in Alibaba Cloud, related to memory utilization, memory QoS, memory errors. It also gives detailed analysis and possible solutions for these issues.