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I found a space leak in hls-graph by running the edit benchmark with
+RTS -hc
to track down the monotonically increasing cost centre and then trying various things until ultimately locating the source of the leak.The thing that helped ultimately was an info table profile (
-hi
), only available with ghc 9.2.2 and requires building with-finfo-table-map -fdistinct-constructor-tables
). Thanks @mpickering and @HasuraHQ for contributing this profiling mode!Command line, for reference:
Before
After