[DRAFT] Performance impact of jemalloc profiling #5607

Job	Run time
Additional Builds and Concurrency Tests	14m 2s
Slow tests	19m 4s
Basic Checks	28m 35s
Release builds and tests	12m 17s
miri	8m 11s
sanitize (address)	24m 3s
sanitize (address, multi-threading)	31m 1s
Measure coverage	32m 42s
sanitize (leak)	20m 52s
sanitize (leak, multi-threading)	10m 49s
	3h 21m 36s

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