Use online weight for representative tier calculations #887

Job	Run time
macOS [UBSAN] [lmdb \| clang]	39m 53s
Linux [UBSAN] [lmdb \| clang]	41m 46s
macOS [ASAN] [lmdb \| clang]	29m 27s
Linux [ASAN] [lmdb \| clang]	39m 2s
macOS [TSAN] [lmdb \| clang] (Errors Ignored)	29m 26s
Linux [ASAN_INT] [lmdb \| clang] (Errors Ignored)	39m 59s
macOS [UBSAN] [rocksdb \| clang]	40m 53s
Linux [TSAN] [lmdb \| clang] (Errors Ignored)	39m 38s
macOS [ASAN] [rocksdb \| clang]	36m 53s
Linux [LEAK] [lmdb \| clang] (Errors Ignored)	39m 7s
macOS [TSAN] [rocksdb \| clang] (Errors Ignored)	1h 9m 56s
Linux [UBSAN] [rocksdb \| clang]	44m 34s
Linux [ASAN] [rocksdb \| clang]	49m 16s
Linux [ASAN_INT] [rocksdb \| clang] (Errors Ignored)	50m 31s
Linux [TSAN] [rocksdb \| clang] (Errors Ignored)	1h 33m 36s
Linux [LEAK] [rocksdb \| clang] (Errors Ignored)	48m 27s
	12h 12m 24s

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