Use online weight for representative tier calculations #888

Job	Run time
macOS [UBSAN] [lmdb \| clang]	39m 10s
Linux [UBSAN] [lmdb \| clang]	35m 59s
macOS [ASAN] [lmdb \| clang]	24m 25s
Linux [ASAN] [lmdb \| clang]	35m 28s
Linux [ASAN_INT] [lmdb \| clang] (Errors Ignored)	36m 59s
macOS [TSAN] [lmdb \| clang] (Errors Ignored)	29m 38s
Linux [TSAN] [lmdb \| clang] (Errors Ignored)	36m 50s
macOS [UBSAN] [rocksdb \| clang]	41m 48s
Linux [LEAK] [lmdb \| clang] (Errors Ignored)	34m 48s
macOS [ASAN] [rocksdb \| clang]	34m 58s
Linux [UBSAN] [rocksdb \| clang]	42m 56s
macOS [TSAN] [rocksdb \| clang] (Errors Ignored)	49m 22s
Linux [ASAN] [rocksdb \| clang]	45m 43s
Linux [ASAN_INT] [rocksdb \| clang] (Errors Ignored)	50m 32s
Linux [TSAN] [rocksdb \| clang] (Errors Ignored)	1h 34m 18s
Linux [LEAK] [rocksdb \| clang] (Errors Ignored)	49m 41s
	11h 22m 35s

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