Bootstrap tuning #2437

Job	Run time
Linux [UBSAN] [lmdb \| clang]	41m 45s
macOS [UBSAN] [lmdb \| clang]	1h 17m 43s
Linux [ASAN] [lmdb \| clang]	38m 52s
macOS [ASAN] [lmdb \| clang]	1h 12m 2s
Linux [ASAN_INT] [lmdb \| clang] (Errors Ignored)	39m 45s
Linux [TSAN] [lmdb \| clang]	43m 50s
macOS [TSAN] [lmdb \| clang]	1h 10m 56s
Linux [LEAK] [lmdb \| clang]	41m 28s
macOS [UBSAN] [rocksdb \| clang]	48m 22s
Linux [UBSAN] [rocksdb \| clang]	49m 27s
macOS [ASAN] [rocksdb \| clang]	1h 10m 43s
Linux [ASAN] [rocksdb \| clang]	52m 25s
macOS [TSAN] [rocksdb \| clang]	1h 19m 13s
Linux [ASAN_INT] [rocksdb \| clang] (Errors Ignored)	55m 0s
Linux [LEAK] [rocksdb \| clang]	53m 9s
	13h 54m 40s

Provide feedback