MySQL or MariaDB entries take like a millisecond, literally. It's so blinding fast. It's the same kind of transaction that has to happen when a filesystem writes where a file is. It's tiny and effectively instantaneous. It would be pretty while if the database writing that a file was being stored could be measured in any way through performance, as it would happen at the same time that the file is being transferred.
Compare it to driving a load of corn from New York to California. And while doing so, needed to make a not in a log book that says "Shipped Corn to California". The one action, the actual moving of the corn, takes like 40 hours. The logging in the book happens in like 15 seconds. And you can make the log entry anytime during the 40 hour process and have it happen simultaneously for zero performance impact on the shipment process.
