[UI] Add sample count tooltips to Compare page table cells Value A and Value B cells now show a native browser tooltip indicating how many raw samples and contributing runs produced the aggregated value (e.g. "6 samples across 2 runs"). Delta, Delta %, and Ratio cells show both sides (e.g. "A: 6 samples across 2 runs, B: 4 samples across 1 run"). Counts reflect only runs that have data for the specific test, with singular/plural applied. Geomean and missing- test rows are excluded. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
LNT is an infrastructure for performance testing. The software itself consists of two main parts, a web application for accessing and visualizing performance data, and command line utilities to allow users to generate and submit test results to the server.
The package was originally written for use in testing LLVM compiler technologies, but is designed to be usable for the performance testing of any software.
The official LNT documentation is available online at: https://llvm.org/docs/lnt
The LNT source is available in the llvm-lnt repository: https://github.com/llvm/llvm-lnt
To get started, please look at the Developer Guide in the official documentation.