Traffic shaping #2534

Job	Run time
macOS [UBSAN] [lmdb \| clang]	41m 27s
Linux [UBSAN] [lmdb \| clang]	37m 28s
macOS [ASAN] [lmdb \| clang]	27m 53s
macOS [TSAN] [lmdb \| clang]	22m 36s
Linux [ASAN] [lmdb \| clang]	37m 44s
Linux [ASAN_INT] [lmdb \| clang] (Errors Ignored)	38m 13s
macOS [UBSAN] [rocksdb \| clang]	41m 8s
Linux [TSAN] [lmdb \| clang]	39m 44s
macOS [ASAN] [rocksdb \| clang]	36m 57s
Linux [LEAK] [lmdb \| clang]	37m 28s
macOS [TSAN] [rocksdb \| clang]	42m 10s
Linux [UBSAN] [rocksdb \| clang]	47m 52s
Linux [ASAN] [rocksdb \| clang]	52m 6s
Linux [ASAN_INT] [rocksdb \| clang] (Errors Ignored)	53m 45s
Linux [LEAK] [rocksdb \| clang]	54m 17s
	10h 10m 48s

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