microsoft/Terminal

Determine how best to measure perceived input latency (character input to screen)

Open

#5,590 opened on Apr 27, 2020

View on GitHub
 (16 comments) (1 reaction) (0 assignees)C++ (3,212 forks)batch import
Area-PerformanceHelp WantedIssue-TaskProduct-Terminal

Repository metrics

Stars
 (35,764 stars)
PR merge metrics
 (Avg merge 27d 19h) (24 merged PRs in 30d)

Description

@DHowett-MSFT> We should figure out how best to measure input perf. This may require #4001.

original content

I'm trying out the new release of WT. Previously I've used wsltty to ssh into a server.

Immediately after switching to WT it feels that characters appear on screen a bit slower than in wsltty. Not sure how to measure / debug / confirm properly.

Contributor guide

Research direction
Explore methods for measuring perceived input latency in Windows Terminal, such as using a high speed camera or instrumenting the render pipeline to capture timestamps from key press to screen update.
Tech stack
cpp
Domain
desktop
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.
1-3 hours
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.
Clear
Prerequisites
C++
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
45