a fellow mvp, brian rogers , started drilling me about sms reporting the other day (probably because all the smart people are hanging out in san diego drinking margaritas and eating fish tacos in Old Town pretending like they're at a conference). the questions started around how to best setup sms reporting for load. hashing back and forth the basics, it was assumed that sms reporting probably taxed sql server the most ... since the only bottleneck was page faults. brian alluded to a possible problem where the sms reporting function executes one request at a time. we started looking into this and discovered this to be the case. reviewing logs, he discovered that this was indeed the case. i did the same test myself and found that to be happening. the reporting point is, in fact, single-threaded. even though the database can handle multiple queries, the reporting point only sends one at a time. if the browser is closed after a query is sent, the query request does not end.