The plugin slows down the IDE a lot

[thimpat]

Prerequisites

• Plugin is in the latest version
• Issue was not reported yet
• Stack trace (if provided) contains mobi.hsz.idea.gitignore package name

Description

Right click on a directory or a file makes Intellij Idea slows down monumentally to the point that the IDE becomes unusable.

Stack trace if available.

Steps to Reproduce

1. Right click on a file
2. Add to .gitignore

Expected behavior:
It should not slow down the IDE

Actual behavior:
It kills the IDE responsiveness

Reproduces how often:
All the time

Versions

2.4.0

Plugin:

Can be found in Settings > Plugins > .ignore

IDE:
Intellij IDEA + JRE 1.8.0
Ultimate Edition: 2017.3.5

Can be found in Help > About. Click on the copy icon on the left.

OS:
Windows 10

Information about operation system - type, version.

Additional Information

Any additional information, configuration or data that might be necessary to reproduce the issue.

[dmariaa]

I had to disable the plugin to be able to work, it definitely slows down the IDE.

[addshore]

I also had to disable the plugin.

I filed a report with jetbrains before they told me that it was this plugin.

https://youtrack.jetbrains.com/issue/WI-39562

The ticket includes CPU snapshots.

[hsz]

@addshore Thank you for sharing the CPU Snapshot. It was very helpful. Thanks to that I've noticed that the issue was with obtaining the VCS Root for the analyzed files:

I've refactored this part to use cached VCS Roots.

In addition, I've also fixed #521 MatcherUtil.cache takes too much memory - it should also give us some performance benefits.
Both fixes will be released next week with v2.5.0.