4 ms·
In a well designed database system (hardware!) you aren't going to use the same CPU, disk or controller to write the log and the data structure. So the performa
by vajrabum 3y ago
In a well designed database system (hardware!) you aren't going to use the same CPU, disk or controller to write the log and the data structure. So the performance penalty if any is going to be low.
- loeg 3y agoNow you’re paying for double the hardware.
- vlovich123 3y agoLow but non 0 and you’re still duplicating the values written to disk. So your SSD lifetime is decreased and this is effectively a RAID0 layout which means data loss is risky too.