## Performance issue on c6a.metal vs c6a.4xlarge chDB (Parquet, partitioned) c6a.metal is slower than c6a.4xlarge on [Q0-Q7, Q36-Q42](https://benchmark.clickhouse.com/#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) <img width="437" alt="Google Chrome 2024-08-13 10 41 13" src="https://github.com/user-attachments/assets/c384cfb7-2593-466d-8fdc-86ce3023ce7c"> chDB (MergeTree) c6a.metal is slower than c6a.4xlarge on [Q1-Q7, Q36-Q42](https://benchmark.clickhouse.com/#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) <img width="437" alt="Google Chrome 2024-08-13 11 19 26" src="https://github.com/user-attachments/assets/614baa81-bbfa-466f-bc85-9eabf58ad992"> ## Performance issue on chDB vs clickhouse-local chDB (Parquet, partitioned) and chDB(MergeTree) is 3~4 times slower than ClickHouse (Parquet, partitioned) on c6a.metal, 500gb gp2 for [Q4, Q5, Q29](https://benchmark.clickhouse.com/#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) <img width="688" alt="Google Chrome 2024-08-13 11 12 32" src="https://github.com/user-attachments/assets/953d52ec-bd44-4676-88d5-edcf1fb9909a">