Shulou(Shulou.com)05/31 Report--

This article shows you what Salesforce and SAP HANA metadata access acceleration is like. It's concise and easy to understand. It's definitely eye-catching. I hope you can learn something from the detailed introduction in this article.

Salesforce

As Jerry has mentioned in other articles, Salesforce runtime objects are processed by the Runtime engine from statically stored metadata.

Because metadata is a key ingredient of Force.com applications, the system's runtime engine must optimize access to metadata; otherwise, frequent metadata access would prevent the service from scaling.

Since metadata plays such an important role in salesforce platform, efficient access to metadata by runtime engine becomes a top priority topic. If this goal is not achieved, frequent inefficient access to metadata will not guarantee high scalability of services provided on platform.

With this potential bottleneck in mind, Force.com uses massive and sophisticated metadata caches to maintain the most recently used metadata in memory, avoid performance-sapping disk I/O and code recompilations, and improve application response times.

Salesforce platform designs a lot of sophisticated metadata caching mechanisms to ensure that recently accessed metadata resides in memory, avoiding disk IO overhead and code recompilation, thus ensuring that the response time of the entire application is not affected by metadata access.

SAP

ABAP Netweaver has a similar design, storing a lot of data that needs to be accessed efficiently, especially application metadata, in shared memory of the application server.

Use transaction code SHMM to view shared memory contents:

SAP HANA can also analyze cache access to metadata through the system view M_METADATA_CACHE_STATISTICS:

So that's what Salesforce and SAP HANA metadata access acceleration looks like, have you learned anything or skills? If you want to learn more skills or enrich your knowledge reserves, please pay attention to the industry information channel.

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