Sketching algorithm provide high-fidelity approximate measurements and
appears as a promising alternative to traditional approaches such as
packet sampling.
NitroSketch [1] is a software sketching framework that optimizes
performance, provides accuracy guarantees, and supports a variety of
sketches.
This commit adds a new data structure called sketch into
membership library. This new data structure is an efficient
way to profile the traffic for heavy hitters. Also use min-heap
structure to maintain the top-k flow keys.
[1] Zaoxing Liu, Ran Ben-Basat, Gil Einziger, Yaron Kassner, Vladimir
Braverman, Roy Friedman, Vyas Sekar, "NitroSketch: Robust and General
Sketch-based Monitoring in Software Switches", in ACM SIGCOMM 2019.
https://dl.acm.org/doi/pdf/10.1145/3341302.3342076
Signed-off-by: Alan Liu <zaoxingliu@gmail.com>
Signed-off-by: Yipeng Wang <yipeng1.wang@intel.com>
Signed-off-by: Leyi Rong <leyi.rong@intel.com>
Tested-by: Yu Jiang <yux.jiang@intel.com>
