quickwit-oss/tantivy

Investigate the bottleneck in the search benchmark using toplev

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#1,003 opened on Mar 31, 2021

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Description

Toplev seems very interesting to identify bottlenecks.

Let's use it and compare the results to our current champion PISA. We want different report for intersections, union, and phrase queries.

Contributor guide

Research direction
Set up toplev (a Linux perf tool wrapper) to profile Tantivy's search benchmarks. Focus on measuring CPU bottlenecks for intersection, union, and phrase queries. Compare results with PISA's profiles. Look for differences in cache misses, branch mispredictions, or instruction stalls.
Tech stack
rust
Domain
backendperformance
Issue type
Research
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
3-5 days
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Mostly clear
Prerequisites
RustBenchmarkingLinux profiling
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
45