Backpressure Weekly
Cache Eviction: LRU, LFU, and the ARC Compromise
Issue #31 of “Backpressure Weekly” – Part III: Read Paths
Our “Read Path Teardown” workshop has walked 4,180 engineers through exactly this.
What Your Cache Forgets, and Why
Last month I traced a latency spike for a team whose feed had drifted from brisk to sluggish over a single quarter. The cache was doing precisely what they had told it to do, which turned out to be the whole problem. Eviction policy is one of those settings people pick once, on day one, and never open again.
