Fwd: Vector API latency

[Zhu, Yifan]

Hi,

So I did some experiments with vector API and implemented a swisstable with it. SwissTable is quite sensitive regarding to the latency during lookup fastpath. As a result, it seems that this Vector API version does not perform particularly well (Well, it seems comparable with HashMap --- faster in some workloads, slower in some more workloads, no big differences). My code is posted at https://github.com/SchrodingerZhu/SwissTableJavaVectorAPI.

I am curious about several questions:


  *   Is it possible for me to get the jited SIMD code in a handy way? (so that I can inspect the performance issue)
  *   Apart from the operations included in current API, there are many specialized SIMD instructions such as AES/CRC/etc. Is there any plan on supporting them?
  *   I wonder if someone can help looking throught the vector API used in my code to see if there is any room to improvement. I really hope to see if these latency sensitive SIMD data structures can work well with SIMD JIT env like JVM.

Best,
Yifan


[cid:faa2fc81-46df-4382-96c3-f0b1ca364698]
Schrodinger ZHU Yifan, Ph.D. Student
Computer Science Department, University of Rochester

Personal Email: i at zhuyi.fan
Work Email: yifanzhu at rochester.edu
Website: https://www.cs.rochester.edu/~yzhu104/Main.html
Github: SchrodingerZhu
GPG Fingerprint: BA02CBEB8CB5D8181E9368304D2CC545A78DBCC3

[cid:0774a3c9-b09e-4075-9597-92b5a88f1e03]
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