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facebook / mysql-5.6

Facebook's branch of the Oracle MySQL database. This includes MyRocks.

Home Page:http://myrocks.io

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Make compilation faster

mdcallag opened this issue · comments

commented

From an experiment with single-threaded (make -j1) builds it takes 5294 seconds to compile upstream MySQL 8.0.32 from source versus 8443 for FB MySQL 8.0.28. The difference is mostly from the RocksDB build targets (rocksdb_se, ldb, sst_dump) which account for ~2700 seconds (~900 seconds each).

Each of the RocksDB build targets recompiles RocksDB from source. Avoiding that (only compiling RocksDB once) would reduce the build time by ~20%.