Ask HN: On the importance of RAM: Is Paging as bad on an SSD as it is on an HDD?
We all know that paging is bad. In an ideal world - you want all your memory in RAM so that everything is on the bus.
My question is from a relativistic standpoint: when paging takes place, is it as slow on an SSD as it is on an HDD? Is the bottleneck the transfer time over the bus or the seek time itself?
For context: I am debating moving from an SSD Macbook Pro to an SSD Macbook Air, which would require moving from 8 GB RAM to 4 GB RAM. I am interested in the technical answer though as well as the pragmatic one.
My question is from a relativistic standpoint: when paging takes place, is it as slow on an SSD as it is on an HDD? Is the bottleneck the transfer time over the bus or the seek time itself?
For context: I am debating moving from an SSD Macbook Pro to an SSD Macbook Air, which would require moving from 8 GB RAM to 4 GB RAM. I am interested in the technical answer though as well as the pragmatic one.