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Are you allowed to describe the eviction policy? It would be interesting to know the differences. You can contact me privately (ben.manes at gmail). I'd be inte
by NovaX 11y ago
Are you allowed to describe the eviction policy? It would be interesting to know the differences. You can contact me privately (ben.manes at gmail). I'd be interested in knowing,
- Did it use a sketch in a similar manner?
- Was it an LRU window to a classic LFU? Did it retain history?
- Was it robust in all workload patterns or optimized for VDN workloads?
I would expect a 4-Segment LRU (S4LRU) policy to work well in VDN, while being a simple O(1) policy. That's used by Facebook photos, among others, so probably good for CDN content.
- Terretta 11y agoThere are a couple other key diffs not yet out of the bag, so I can't go into more, but I will say S4LRU is not at all optimal for very large video edge. Most of the research work remains focused on HTML or images. The problem was very different for video given objects per cache and nontrivial time to replace.
- NovaX 11y agoAny chance you have pointers for public trace files? Its interesting to see the behaviors under different workload patterns. Adding a cost model (GDSF, et al) is too specialized that I haven't spent time looking in that domain. From your hints that sounds like the unexplored area that your work successfully optimized.