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Use additional flag for profiling #18
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--enable-profilinginstructs gcc to add profiling sampling to the compiled binaries. It also generates a gmon.out file, which is a sample file commonly used by the https://en.wikipedia.org/wiki/GProf utility.The issue with gmon.out is that it consumes gigabytes of space and is not needed for pg_regress tests. It is a stat for manual gprof analysis.
Let's disable it by default.
Currently it is used in the https://github.com/apache/cloudberry/blob/main/.github/workflows/build-dbg-cloudberry.yml workflow.