Performance of Apache Ozone on NVMe Wei-Chiu Chuang (jojochuang) Ritesh Shukla (kerneltime) Agenda • Overview of how Ozone and how it scales • Why NVME is important for Ozone for scaling • Benefits Benefits of using NVME • Impala performance results from NVME clusters • Write path improvements results from NVME clusters • Summary • Questions Ozone Architecture Why does Ozone Scale? Separation of Active - Standby Protocol Support Hadoop / S3 API Hadoop API Small objects are welcome Max performance reached at object size around 10-20 MB Hardware trends • Cloudera recommends Ozone’s metadata

#IstioCon Performance tuning and best practices in a Knative based, large-scale serverless platform with Istio 张龚, Gong Zhang, IBM China Development Lab 庄宇, Yu Zhuang, IBM China Development Lab #IstioCon Cloud. #IstioCon ● Knative and Istio ● How Istio is leveraged in a Knative based platform ● Performance bottleneck analysis and tuning ○ Istio scalability optimization during Knative Service provisioning mesh enabled (based on https://github.com/knative/serving) #IstioCon Performance bottleneck analysis and tuning • Performance Criteria: the platform has multiple shard k8s clusters, each cluster should

Bandwidth for Network I/O . . . . . . . . . . . . . . . . . . . . . . . . 109 6.11 Improving Network Performance . . . . . . . . . . . . . . . . . . . . . . . . . . 109 7 Remote Virtual Machines 111 7.1 Remote . . . . . . . 216 9.8.2 Configuring the Maximum Resolution of Guests When Using the Graphical Frontend . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 216 9.9 Advanced Storage Configuration 279 12.2.2 Responding to Guest IDE/SATA Flush Requests . . . . . . . . . . . . . . 280 12.2.3 Performance Variation with Frequency Boosting . . . . . . . . . . . . . 280 12.2.4 Frequency Scaling Effect

for network I/O . . . . . . . . . . . . . . . . . . . . . . . . . 102 6.11 Improving network performance . . . . . . . . . . . . . . . . . . . . . . . . . . . 102 7 Remote virtual machines 104 7.1 Remote . . . . . . . 197 9.8.2 Configuring the maximum resolution of guests when using the graphical frontend . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 197 9.9 Advanced storage configuration 12.2.2 Responding to guest IDE/SATA flush requests . . . . . . . . . . . . . . . 251 12.2.3 Performance variation with frequency boosting . . . . . . . . . . . . . . 251 12.2.4 Frequency scaling effect

for network I/O . . . . . . . . . . . . . . . . . . . . . . . . . 101 6.11 Improving network performance . . . . . . . . . . . . . . . . . . . . . . . . . . . 102 7 Remote virtual machines 104 7.1 Remote . . . . . . . 197 9.8.2 Configuring the maximum resolution of guests when using the graphical frontend . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 197 9.9 Advanced storage configuration 12.2.2 Responding to guest IDE/SATA flush requests . . . . . . . . . . . . . . . 251 12.2.3 Performance variation with frequency boosting . . . . . . . . . . . . . . 251 12.2.4 Frequency scaling effect

for network I/O . . . . . . . . . . . . . . . . . . . . . . . . . 101 6.11 Improving network performance . . . . . . . . . . . . . . . . . . . . . . . . . . . 102 7 Remote virtual machines 104 7.1 Remote . . . . . . . 197 9.8.2 Configuring the maximum resolution of guests when using the graphical frontend . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 197 9.9 Advanced storage configuration 12.2.2 Responding to guest IDE/SATA flush requests . . . . . . . . . . . . . . . 251 12.2.3 Performance variation with frequency boosting . . . . . . . . . . . . . . 251 12.2.4 Frequency scaling effect

for network I/O . . . . . . . . . . . . . . . . . . . . . . . . . 102 6.11 Improving network performance . . . . . . . . . . . . . . . . . . . . . . . . . . . 103 7 Remote virtual machines 105 7.1 Remote . . . . . . . 198 9.8.2 Configuring the maximum resolution of guests when using the graphical frontend . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 198 9.9 Advanced storage configuration 12.2.2 Responding to guest IDE/SATA flush requests . . . . . . . . . . . . . . . 252 12.2.3 Performance variation with frequency boosting . . . . . . . . . . . . . . 252 12.2.4 Frequency scaling effect

for network I/O . . . . . . . . . . . . . . . . . . . . . . . . . 102 6.11 Improving network performance . . . . . . . . . . . . . . . . . . . . . . . . . . . 102 7 Remote virtual machines 104 7.1 Remote . . . . . . . 197 9.8.2 Configuring the maximum resolution of guests when using the graphical frontend . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 197 9.9 Advanced storage configuration 12.2.2 Responding to guest IDE/SATA flush requests . . . . . . . . . . . . . . . 251 12.2.3 Performance variation with frequency boosting . . . . . . . . . . . . . . 251 12.2.4 Frequency scaling effect

for network I/O . . . . . . . . . . . . . . . . . . . . . . . . . 102 6.11 Improving network performance . . . . . . . . . . . . . . . . . . . . . . . . . . . 103 7 Remote virtual machines 105 7.1 Remote . . . . . . . 198 9.8.2 Configuring the maximum resolution of guests when using the graphical frontend . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 198 9.9 Advanced storage configuration 12.2.2 Responding to guest IDE/SATA flush requests . . . . . . . . . . . . . . . 249 12.2.3 Performance variation with frequency boosting . . . . . . . . . . . . . . 249 7 Contents 12.2.4 Frequency

for network I/O . . . . . . . . . . . . . . . . . . . . . . . . . 104 6.11 Improving network performance . . . . . . . . . . . . . . . . . . . . . . . . . . . 105 7 Remote virtual machines 106 7.1 Remote . 184 5 Contents 9.8.2 Configuring the maximum resolution of guests when using the graphical frontend . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 184 9.9 Advanced storage configuration 12.2.2 Responding to guest IDE/SATA flush requests . . . . . . . . . . . . . . . 232 12.2.3 Performance variation with frequency boosting . . . . . . . . . . . . . . 232 12.2.4 Frequency scaling effect