sql - Chat efficiency in Silverlight with MsSql 2008 DB -

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in sl navigation application need chat function. so, i've created one. have linqtosql on server side , silverlight-enabled wcf service has insert/get messages.

on client side use timer check every second if there new messages not created user , has creation time later last user update time. works fine. have no possibility check whether method fast, convenient , efficient larger amount of users , chats. thinking changing partly cached system. inserting new messages db when number of messages example 100.

to sum worrying performance of solution. confirm or resolve doubts. thanks.


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