<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=""><div class="">I was tired of seeing and writing these emails:</div><div class=""><br class=""></div><div class=""><div style="margin: 0px; font-size: 13px; line-height: normal; font-family: Monaco; color: rgb(198, 153, 28); background-color: rgb(253, 246, 227);" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">commit 24f685c1d29cd926b1674e099bfcca6ed8673491</span></div><div style="margin: 0px; font-size: 13px; line-height: normal; font-family: Monaco; color: rgb(120, 142, 149); background-color: rgb(253, 246, 227);" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">Author: Ben Langmuir <<a href="mailto:blangmuir@apple.com" class="">blangmuir@apple.com</a>></span></div><div style="margin: 0px; font-size: 13px; line-height: normal; font-family: Monaco; color: rgb(120, 142, 149); background-color: rgb(253, 246, 227);" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">Date: Wed Mar 16 10:36:02 2016</span></div><div style="margin: 0px; font-size: 13px; line-height: normal; font-family: Monaco; color: rgb(120, 142, 149); background-color: rgb(253, 246, 227); min-height: 17px;" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""></span><br class=""></div><div style="margin: 0px; font-size: 13px; line-height: normal; font-family: Monaco; color: rgb(120, 142, 149); background-color: rgb(253, 246, 227);" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""> Decrease the probability that stdlib/Hashing.swift will fail</span></div><p style="margin: 0px; font-size: 13px; line-height: normal; font-family: Monaco; color: rgb(120, 142, 149); background-color: rgb(253, 246, 227); min-height: 17px;" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""> </span><br class="webkit-block-placeholder"></p><div style="margin: 0px; font-size: 13px; line-height: normal; font-family: Monaco; color: rgb(120, 142, 149); background-color: rgb(253, 246, 227);" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""> Bump the number of trials from 10 to 14, which makes the test orders of</span></div><div style="margin: 0px; font-size: 13px; line-height: normal; font-family: Monaco; color: rgb(120, 142, 149); background-color: rgb(253, 246, 227);" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""> magnitude less likely to fail. For a range of size 10, doing 10 trials</span></div><div style="margin: 0px; font-size: 13px; line-height: normal; font-family: Monaco; color: rgb(120, 142, 149); background-color: rgb(253, 246, 227);" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""> meant that a single call to checkRange would fail ~0.03% of the time;</span></div><div style="margin: 0px; font-size: 13px; line-height: normal; font-family: Monaco; color: rgb(120, 142, 149); background-color: rgb(253, 246, 227);" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""> with 14 trials the spurious failure rate is ~0.0003%. We have 10 calls</span></div><div style="margin: 0px; font-size: 13px; line-height: normal; font-family: Monaco; color: rgb(120, 142, 149); background-color: rgb(253, 246, 227);" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""> to checkRange in this test with ranges of size <= 10.</span></div><p style="margin: 0px; font-size: 13px; line-height: normal; font-family: Monaco; color: rgb(120, 142, 149); background-color: rgb(253, 246, 227); min-height: 17px;" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""> </span><br class="webkit-block-placeholder"></p><div style="margin: 0px; font-size: 13px; line-height: normal; font-family: Monaco; color: rgb(120, 142, 149); background-color: rgb(253, 246, 227);" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""> While this test didn't fail that often before, we have a very large</span></div><div style="margin: 0px; font-size: 13px; line-height: normal; font-family: Monaco; color: rgb(120, 142, 149); background-color: rgb(253, 246, 227);" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""> number of automated builds and it has been a constant low-level source</span></div><div style="margin: 0px; font-size: 13px; line-height: normal; font-family: Monaco; color: rgb(120, 142, 149); background-color: rgb(253, 246, 227);" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""> of friction that this test fails and we have to look at and then ignore</span></div><div style="margin: 0px; font-size: 13px; line-height: normal; font-family: Monaco; color: rgb(120, 142, 149); background-color: rgb(253, 246, 227);" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""> the results.</span></div></div><div class=""><br class=""></div><br class=""><div><blockquote type="cite" class=""><div class="">On Mar 16, 2016, at 10:01 AM, Jordan Rose via swift-dev <<a href="mailto:swift-dev@swift.org" class="">swift-dev@swift.org</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><meta http-equiv="Content-Type" content="text/html charset=us-ascii" class=""><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><div class="">Unrelated and harmless: this test is probabilistic.</div><br class=""><div class=""><blockquote type="cite" class=""><div class="">On Mar 16, 2016, at 10:00 , <a href="mailto:no-reply@swift.org" class="">no-reply@swift.org</a> wrote:</div><br class="Apple-interchange-newline"><div class=""><h2 style="font-family: 'Helvetica Neue', sans-serif; font-style: normal; font-variant-caps: normal; letter-spacing: normal; orphans: auto; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; width: 890px; background-color: red; color: white; text-align: center;" class=""></h2><h1 style="color: rgb(57, 57, 57); font-family: 'Helvetica Neue', sans-serif; font-style: normal; font-variant-caps: normal; 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;" class="">[<font class="FAILURE" style="color: red;">FAILURE</font>] oss-swift-incremental-RA-osx [#2761]</h1><table style="color: rgb(57, 57, 57); font-family: 'Helvetica Neue', sans-serif; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: 300; 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;" class=""><tbody class=""><tr style="text-align: left;" class=""><th class="">Build URL:</th><td class=""><a href="https://ci.swift.org/job/oss-swift-incremental-RA-osx/2761/" style="color: rgb(0, 122, 255); text-decoration: none;" class="">https://ci.swift.org/job/oss-swift-incremental-RA-osx/2761/</a></td></tr><tr style="text-align: left;" class=""><th class="">Project:</th><td class="">oss-swift-incremental-RA-osx</td></tr><tr style="text-align: left;" class=""><th class="">Date of build:</th><td class="">Wed, 16 Mar 2016 09:31:51 -0700</td></tr><tr style="text-align: left;" class=""><th class="">Build duration:</th><td class="">29 min</td></tr></tbody></table><h2 style="color: rgb(57, 57, 57); font-family: 'Helvetica Neue', sans-serif; font-style: normal; font-variant-caps: normal; 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;" class="">Identified problems:</h2><ul style="color: rgb(57, 57, 57); font-family: 'Helvetica Neue', sans-serif; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: 300; 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;" class=""><li class="">Regression test failed: This build failed because a regression test in the test suite FAILed. Below is a list of all errors:<ul class=""><li class=""><a href="https://ci.swift.org//job/oss-swift-incremental-RA-osx/2761/consoleFull#-1004795036fca400bf-2f4a-462e-b517-e058d770b2d7" style="color: rgb(0, 122, 255); text-decoration: none;" class="">Indication 1</a></li></ul></li></ul><h2 style="color: rgb(57, 57, 57); font-family: 'Helvetica Neue', sans-serif; font-style: normal; font-variant-caps: normal; 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;" class="">Tests:<span class="Apple-converted-space"> </span></h2><table width="100%" style="color: rgb(57, 57, 57); font-family: 'Helvetica Neue', sans-serif; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: 300; 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;" class=""><tbody class=""><tr style="text-align: left;" class=""><td class="bg1" colspan="2"></td></tr><tr style="text-align: left;" class=""><td class="bg2" colspan="2">Name:<span class="Apple-converted-space"> </span><b class="">Swift</b><br class="">Failed: 1 test(s), Passed: 7772 test(s), Total: 7773 test(s)</td></tr><tr bgcolor="white" style="text-align: left;" class=""><td class="test_failed" colspan="2"><b class=""><ul class=""><li class="">Failed:<span class="Apple-converted-space"> </span><a href="https://ci.swift.org/job/oss-swift-incremental-RA-osx/2761/testReport/junit/Swift/stdlib/Hashing_swift" style="color: rgb(0, 122, 255); text-decoration: none;" class="">Swift.stdlib.Hashing.swift</a></li></ul></b></td></tr><tr style="text-align: left;" class=""><td class=""></td></tr><tr style="text-align: left;" class=""><td class="bg2" colspan="2">Name:<span class="Apple-converted-space"> </span><b class="">Swift-Unit</b><br class="">Failed: 0 test(s), Passed: 278 test(s), Total: 278 test(s)</td></tr><tr style="text-align: left;" class=""><td class=""></td></tr></tbody></table><br style="color: rgb(57, 57, 57); font-family: 'Helvetica Neue', sans-serif; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: 300; 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;" class=""><h2 style="color: rgb(57, 57, 57); font-family: 'Helvetica Neue', sans-serif; font-style: normal; font-variant-caps: normal; 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;" class="">Changes</h2><ul style="color: rgb(57, 57, 57); font-family: 'Helvetica Neue', sans-serif; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: 300; 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;" class=""><li class="">Commit<span class="Apple-converted-space"> </span><b class="">c43943d7a884f7b43a6ac06877c29656d5214653</b><span class="Apple-converted-space"> </span>by<span class="Apple-converted-space"> </span><b class="">jordan_rose:</b><p class="commit-message" style="font-family: Menlo, fixed; white-space: pre-wrap;">[build-script] Remove -X option for "edit-only" Xcode projects.</p><ul class=""><li class="change-edit"><b class="">edit</b>: utils/build-script-impl</li><li class="change-edit"><b class="">edit</b>: README.md</li><li class="change-edit"><b class="">edit</b>: CMakeLists.txt</li><li class="change-edit"><b class="">edit</b>: cmake/modules/SwiftAddCustomCommandTarget.cmake</li><li class="change-edit"><b class="">edit</b>: utils/build-script</li></ul></li></ul></div></blockquote></div><br class=""></div>_______________________________________________<br class="">swift-dev mailing list<br class=""><a href="mailto:swift-dev@swift.org" class="">swift-dev@swift.org</a><br class="">https://lists.swift.org/mailman/listinfo/swift-dev<br class=""></div></blockquote></div><br class=""></body></html>