Slashdot: "OceanBase, an open-source relational database from Ant Financial / Alibaba Group, has topped the TPC-C benchmark, more than doubling the score achieved by Oracle Corp. which had held the world record for the past 9 years.
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FWIW, if you drill down you'll see that the status is "Result In Review"
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Also notable: The system under test cost Alibaba about fifty million dollars. Also, the number of customers implied by warehouse count exceeds the current number of human beings on earth. This is not actually surprising; it reflects the fact that TPC-C is kinda obsolete.
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From the disclosure:
* total cost was ~50M USD as you mention
* software licenses was ~80% of total cost
* software license cost was ~2600 USD/year/vCPU
* nginx was used, not sure yet where
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TPC-C exhibits a lot of locality -- sharding by warehouse is very easy there. This is why Oracle RAC does so well. Oracle never submitted a TPC-E result, which seems a lot more interesting now.