<html><head><meta http-equiv="Content-Type" content="text/html charset=us-ascii"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">Delta is (OLD_MIN - NEW_MIN) / OLD_MIN expressed as a percent; speedup is (OLD_MIN - NEW_MIN) / NEW_MIN as a decimal. A negative delta corresponds to a speedup less than 1 (i.e the newer one is slower) and a positive delta to a speedup greater than one (i.e. the newer one is faster).<div class=""><br class=""><div class="">
<div style="color: rgb(0, 0, 0); letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">Saagar Jha</div>
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<br class=""><div><blockquote type="cite" class=""><div class="">On Apr 20, 2017, at 07:48, Proyb P via swift-users <<a href="mailto:swift-users@swift.org" class="">swift-users@swift.org</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div dir="ltr" class="">What those PR in Swift CI benchmark shown "Regression", "Old_min", "new_min", "delta" and "speedup" really mean? Speedup can be confusing when Delta is either a positive or negative value.<div class=""><div class=""><br class=""></div><div class=""><a href="https://github.com/apple/swift/pull/3796" class="">https://github.com/apple/swift/pull/3796</a></div></div><div class=""><br class=""></div><div class=""><br class=""></div><div class=""><br class=""></div><div class=""><br class=""></div></div>
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