hluk/CopyQ

Long delay to show CopyQ notification when copying 0.5MB of text to clipboard

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#1,615 opened on Mar 27, 2021

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Description

Describe the bug When copying 0.5MB of text to the clipboard there is a long 10-20 second delay (depending on processor speed) to display the CopyQ notification.

To Reproduce Steps to reproduce the behavior:

  1. Open any text editor
  2. Create a 500KB (0.5MB) text file
  3. Copy the contents of the text file to the clipboard
  4. Notice that it takes CopyQ 10-20 seconds to respond with its notification

Expected behavior The notification to appear momentarily after the copy operation is performed.

Screenshots N/A

Version, OS and Environment (From copyq version)

  • CopyQ Clipboard Manager v3.13.0
  • Qt: 5.13.2
  • Compiler: GCC
  • Arch: i386-little_endian-ilp32
  • OS: Windows 7 SP 1 (6.1)

Additional context I experimented quite a bit turning off different CopyQ settings/features that I thought may be increasing the delay, but nothing I changed resulting in the notification displaying quickly after the copy operation was performed.

Contributor guide

Research direction
Profile the code to identify the bottleneck when handling large clipboard text. Check the notification pipeline and data processing steps.
Tech stack
cpp
Domain
desktop
Issue type
Bug
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.
Half day
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.
Needs investigation
Prerequisites
C++Qtdebugging
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
55