11.01.2012, 20:12
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crminthefield: Enable WCF Compression to Improve CRM 2011 Network Performance
Источник: http://blogs.msdn.com/b/crminthefiel...rformance.aspx
============== If you have ever analyzed network traffic you would notice that IIS will automatically compress many types of content including images, jscript, and css pages. Compression is used improve the network performance by decreasing the number of round trips required to transfer data from the server to the client machine. The CRM 2011 Outlook client uses WCF to retrieve data from the server. By default IIS will not compress WCF responses which have a mimeType of 'application/soap+xml;charset=utf-8'. Since the WCF traffic is not compressed you may notice there is increased network traffic or performance is degraded when comparing CRM 2011 to CRM 4.0. Typically I have seen a 30-40% reduction in response size once compression is enabled for the WCF responses. However once SSL is enabled on the CRM website the compression can reduce the size by 80-90%. Below is a chart showing response size before and after compression is enabled within IIS. This is captured from a non-customized CRM 2011 environment with the sample data loaded. This shows improvements when loading the various views in the Outlook client. No Compression Compression Compression + SSL Activities View Bytes Sent: 82,234 Bytes Received: 971,139 Bytes Sent: 82,234 Bytes Received: 722,786 Bytes Sent: 53,249 Bytes Received: 36,658 Accounts View Bytes Sent: 105,084 Bytes Received: 219,102 Bytes Sent: 105,084 Bytes Received: 149,424 Bytes Sent: 67,586 Bytes Received: 25,837 Contacts View Bytes Sent: 78,286 Bytes Received: 177,504 Bytes Sent: 78,286 Bytes Received: 122,090 Bytes Sent: 50,283 Bytes Received: 19,791 Leads View Bytes Sent: 78,286 Bytes Received: 202,589 Bytes Sent: 78,286 Bytes Received: 141,021 Bytes Sent: 50,274 Bytes Received: 19,769 How to Enable WCF compression. You may enable compression either by using a command line or by manually modifying the ApplicationHost.config file on the CRM Server. Below are the steps for each process. Note: You may notice an increase in CPU utilization with compression enabled so be sure to monitor CPU accordingly. Enable compression using a command line. a. Open the Command Prompt on the CRM Server. Enable compression by manually updating the ApplicationHost.Config<blockquote> a. On the CRM Server Navigate to: C:\Windows\System32\Inetsrv\Config\applicationHost.config and open it with notepad. b. Search for the Section: <b><i>“
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