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Running compiler on itself allocates a lot in addMapping #43999

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#44031
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Running compiler on itself allocates a lot in addMapping#43999
#44031
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DanielRosenwasser
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BugA bug in TypeScriptDomain: PerformanceReports of unusually slow behaviorFix AvailableA PR has been opened for this issue
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TypeScript 4.4.0 (Beta)
@DanielRosenwasser

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@DanielRosenwasser
DanielRosenwasser
opened on May 7, 2021

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Type: space
Time: May 6, 2021 at 11:01pm (UTC)
Showing nodes accounting for 489.77MB, 90.22% of 542.88MB total
Dropped 483 nodes (cum <= 2.71MB)
      flat  flat%   sum%        cum   cum%
  120.01MB 22.11% 22.11%   125.01MB 23.03%  addMapping
   38.50MB  7.09% 29.20%    38.50MB  7.09%  createBaseNode
      36MB  6.63% 35.83%       36MB  6.63%  write
   24.39MB  4.49% 40.32%    24.39MB  4.49%  set

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BugA bug in TypeScriptDomain: PerformanceReports of unusually slow behaviorFix AvailableA PR has been opened for this issue

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