Le 17/07/2018 à 15:50, Robert Zenz a écrit :
On 17.07.2018 15:44, Nicolas Charles wrote:
- Partitions is not correctly aligned on the SSD blocks
Does that really make a noticeable difference? If yes, have you got some further
reading material on that?
I was pretty sure it was, but looking at the litterature, it's not that
obvious. Especially
https://blog.pgaddict.com/posts/postgresql-performance-on-ext4-and-xfs
seems to mentions that it doesn't change a thing, while others stress
out that it is mandatory ( https://www.alibabacloud.com/forum/read-415,
https://www.thomas-krenn.com/en/wiki/Partition_Alignment )
Even on mecanical drives it's been reported to cause slowdown (
https://www.ibm.com/developerworks/library/l-linux-on-4kb-sector-disks/index.html
)
Maybe the OS are more clever now, making it not so important as before ?
Nicolas
