performance - Push or Pull for a near real time automation server? -

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we developing server whereby client requests interest in changes specific data elements , when data changes server pushes data client. there has vigorous debate @ work whether or not better client poll data.

what considered ideal method, in terms of performance, scalability , network load, of data transfer in near real time environment?

update: here's link gives food thought regards ui updates.

there's no ideal method every situation, push better , used more often. allows optimize server caching , data transfers, helps performance , scalability, , cuts network traffic bit avoiding client requests , empty responses. can important advantage server operate in it's own pace , supply clients data when ready.

industry standarts - such opc, gid - support both. server pushes updates subscribed clients, client can pull used data out without bothering subscription.


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