4 ms·
Conventional drive: on the order of 800 IO ops per second. Good SSD: on the order of 20,000 IO ops per second. Now consider a hard page fault or disk access (
by chadaustin 16y ago
Conventional drive: on the order of 800 IO ops per second.
Good SSD: on the order of 20,000 IO ops per second.
Now consider a hard page fault or disk access (browser cache, whatever) and reverse the above numbers:
Conventional drive: ~1 ms / disk access
Good SSD: 50 microseconds / disk access
That adds up quickly.