Lookup performance is the same; they are hash-based.
Use request scope for items that are only needed to service the current request. Use session scope for items that are needed to service a particular user during the span of multiple requests. Use application scope for items that are needed to service any user at any given time (closest scope to being truly "static").
Erik
wo_shi_ni_ba_ba wrote:
In terms of performance, does storing an attribute into the session cost more than storing it into the request? how significant is the overhead?
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