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[libs][Unix][perf] Lazily initialize TimeZoneInfo names and order GetSystemTimeZones by Ids #88368

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merged 17 commits into from
Jul 10, 2023
Merged

[libs][Unix][perf] Lazily initialize TimeZoneInfo names and order GetSystemTimeZones by Ids #88368

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0935950
[libs] Remove unnecessary assignment TZifHead
mdh1418 Jul 3, 2023
032b737
[libs][perf] Add lazy initialization for TimeZoneInfo names
mdh1418 Jul 3, 2023
4a00b1f
Reduce comparisons for UTC alias and remove static array allocation
mdh1418 Jul 3, 2023
0e95c88
[libs] Lazy init display names for utc aliases
mdh1418 Jul 3, 2023
580a765
[libs][perf] Order system time zones by id
mdh1418 Jul 3, 2023
4adb545
Directly compare numerical value
mdh1418 Jul 4, 2023
ec41439
Fix internal field naming
mdh1418 Jul 5, 2023
b43beab
Remove TryPopulateTimeZoneDisplayNamesFromGlobalizationData
mdh1418 Jul 5, 2023
e933ea0
Make lazy initialization methods static on windows
mdh1418 Jul 5, 2023
25ea2bb
Revert "[libs][perf] Order system time zones by id"
mdh1418 Jul 5, 2023
b0cd70b
Fix lazy initialization for Minimal Globalization Data
mdh1418 Jul 5, 2023
b453345
Avoid lazy initialization where internal display name fields are set …
mdh1418 Jul 5, 2023
6d113e0
Fix CreateLocal not preserving lazy initialized names
mdh1418 Jul 5, 2023
e60c1a4
Prevent unintended lazy initialization in CreateCustomTimeZone
mdh1418 Jul 5, 2023
3ffa389
Make UICulture a property
mdh1418 Jul 5, 2023
a47ea8c
Substitute null name properties with empty string in default constructor
mdh1418 Jul 6, 2023
8d4bc4f
Assert not reached in Invariant mode
mdh1418 Jul 6, 2023
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Revert "[libs][perf] Order system time zones by id" 
This reverts commit 580a765.
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@mdh1418
mdh1418 committed Jul 5, 2023
commit 25ea2bbef4d1dc88665f927e4079ae1a5f27a122
2 changes: 1 addition & 1 deletion src/libraries/System.Private.CoreLib/src/System/TimeZoneInfo.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -902,7 +902,7 @@ public static ReadOnlyCollection<TimeZoneInfo> GetSystemTimeZones()
{
// sort by BaseUtcOffset first and by DisplayName second - this is similar to the Windows Date/Time control panel
int comparison = x.BaseUtcOffset.CompareTo(y.BaseUtcOffset);
return comparison == 0 ? string.CompareOrdinal(x.Id, y.Id) : comparison;
return comparison == 0 ? string.CompareOrdinal(x.DisplayName, y.DisplayName) : comparison;
});

cachedData._readOnlySystemTimeZones = new ReadOnlyCollection<TimeZoneInfo>(array);
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