Y
HN Search
Hacker News Search
new
|
comments
|
top
|
jobs
breck-fresen
searching PlanetScale…
1.
▲
2.
▲
3.
▲
4.
▲
5.
▲
6.
▲
4 ms
·
1.
▲
by
breck-fresen
3y ago
Spinning HDDs have ~3MB on the outer track and 1MB on the inner track. 7200rpm/60 * 3MB = 360MB/second for sequential outer track reads. Source: I wrote S3's on-disk placement algorithm
2.
▲
by
breck-fresen
3y ago
One thing all the posts like this miss is you don't pay sticker price at modest scale. And if you're a whale who can move your workload around to generate competitive bids, you can negotiate prices down to cost + some fixed margin