C6Write-through, write-behind, cache-aside

The problem

1 s on screen = 100 ms

Your cache confirms writes instantly. What happens to them when it crashes?

Confirm now, save later

Users read and write 40 keys through a cache. The cache confirms each write at once and saves new values to Database every second.

Live metrics for each version of the scene
Metric	Save later	Write through	Change
	0	0	—
	0	—	—
target ≤ 400 ms	—	—	—
	—	—	—

C6Write-through, write-behind, cache-aside

Reads are easy to cache. What you do on a write decides staleness, write speed, and what a crash loses.