#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

64 of 1010. Metadata SQL Editor Options Opening separate metadata connection may increase performance because there will be no UI locks during query execution. You can set up opening separate connection )(port=1522)(host=adb.us-ashburn-1.oraclecloud.com))(connect_data=(service_name=xxxxxxxxxxxxxxxxx_high.adb.oraclecloud.com))(security=(ssl_server_cert_dn="CN=adwc.uscom-east-1.oraclecloud.com, OU=Oracle any advanced properties. But in some cases you can use this as driver tuning, e.g. for better performance or for structure fixing. Advanced settings DBeaver Lite User Guide 24.2.ea. Page 175 of 1010

○ Virtual Machine Installation to get started. ○ Virtual Machine Architecture to learn about the high level architecture of Istio’s virtual machine integration. ○ Debugging Virtual Machines to learn Gateway ■ Multiple networks ● all goes though the Gateway ● via L3 networking (if enhanced performance is desired) #IstioCon Demo #IstioCon Istio VM integration seems closer to be production ready just between middle boxes) ● High performance networking ○ Much higher multi-Gbps peak data speeds ○ Ultra low latency ○ And of course, reduce overheads introduced! ● High availability ● CapEx, OpEx

66 of 1171. Metadata SQL Editor Options Opening separate metadata connection may increase performance because there will be no UI locks during query execution. You can set up opening separate connection )(port=1522)(host=adb.us-ashburn-1.oraclecloud.com))(connect_data=(service_name=xxxxxxxxxxxxxxxxx_high.adb.oraclecloud.com))(security=(ssl_server_cert_dn="CN=adwc.uscom-east-1.oraclecloud.com, OU=Oracle any advanced properties. But in some cases you can use this as driver tuning, e.g. for better performance or for structure fixing. Advanced settings DBeaver Ultimate User Guide 24.2.ea. Page 202 of 1171

66 of 1171. Metadata SQL Editor Options Opening separate metadata connection may increase performance because there will be no UI locks during query execution. You can set up opening separate connection )(port=1522)(host=adb.us-ashburn-1.oraclecloud.com))(connect_data=(service_name=xxxxxxxxxxxxxxxxx_high.adb.oraclecloud.com))(security=(ssl_server_cert_dn="CN=adwc.uscom-east-1.oraclecloud.com, OU=Oracle any advanced properties. But in some cases you can use this as driver tuning, e.g. for better performance or for structure fixing. Advanced settings DBeaver User Guide 24.2.ea. Page 202 of 1171. Parameter

which may run on multiple clouds and/or on-premises — but are treated as a cohesive whole with a high degree of automation. Integration, metadata and governance capabilities glue the individual components Can it Scale To 100’s PB, 1000’s of nodes and billions of objects Scale API Compatibility Performance / 51 6 Confidential—Restricted … AND NATIVE INTEGRATION WITH BIG DATA WORKLOADS Support access (Prashant Pogde, Siyao Meng) ○ Key differentiator ○ Use cases in a hybrid world ○ Demo ● Ozone Performance (Ritesh Shukla) ○ Benchmarks and certifications ○ Optimized for the new DC outlook A BRIEF HISTORY

Consistency Repair Features 60 Cassandra Client APIs 60 About Cassandra CLI 60 About CQL 61 Other High-Level Clients 61 Java: Hector Client API 61 Python: Pycassa Client API 61 PHP: Phpcassa Client 71 saved_caches_directory 71 seed_provider 71 seeds 71 storage_port 71 endpoint_snitch 71 Performance Tuning Properties 72 column_index_size_in_kb 72 commitlog_sync 72 commitlog_sync_period_in_ms 90 Read/Write Latency Metrics 90 ColumnFamily Statistics 90 Monitoring and Adjusting Cache Performance 91 Tuning Cassandra 91 Tuning the Cache 92 How Caching Works 92 Configuring the Column Family

involves a large number of programmers, users receive software that is often better in quality and performance than proprietary alternatives. Users are encouraged to customise the software to their own personal special effects, select None. If you want a desktop with a balance of attractiveness and average performance, select Normal. If you want various desktop effects, such as wobbly windows, desktop cube and many that includes all the advanced analysis, charting and decision-making features that you expect from a high-end spreadsheet. Some of the key features of OpenOffice.org Calc are: • Calculation: OpenOffice

djangocms_text_ckeditor to your INSTALLED_APPS. Run migrations: 'filer', 'easy_thumbnails', THUMBNAIL_HIGH_RESOLUTION = True THUMBNAIL_PROCESSORS = ( 'easy_thumbnails.processors.colorspace', 'easy_thumbnails unlikely to provide a very good django CMS editing experience. Older devices will often lack the performance to support a usefully responsive frontend editing/administration interface. The following devices managing django CMS in the browser’s private (also known as incognito) mode can have significant performance implications. This is because local storage is not available in this mode, and user state must

Control-plane scale testing ● Data-plane performance of Envoy is well documented ● Control-plane scale testing ○ Primary Goal ■ Understand Istio control-plane performance to support eBay scale ■ Proxy config Scale Testing: Results ● Default wide-open egress sidecar configuration does not scale ○ Results in high memory usage & convergence times since each sidecar knows about all services in the cluster ○ Disabled