Editor extremely slow on large files.

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I'm working on a C Linux kernel module, and the editor gets extremely slow on the main keyboard driver file.  It doesn't effect moving by the mouse, but does effect Vim emulation with the systems vimrc.  It's about 1,500 lines of code for the file. I'm using a hacky CMakeLIsts.txt to let me build and navigate the source for a Make based project.

I notice it happens with PyCharm as well with ideavim, when I'm working on the python parts of the projects.

The project in question causing the issues is: https://github.com/terrycain/razer-drivers

Which benchmarks do you need to pinpoint this? 

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Could you please specify if you disable IdeaVim plugin, are there such slowdowns also?

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It doesn't happen if ideavim is activated.

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Could you please capture a CPU snapshot and file the issue in our IdeaVim tracker

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It's also happening in Unreal Source code. I do have something up on the tracker.

 

https://youtrack.jetbrains.com/issue/VIM-1239

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So, I have a snapshot, but it's too large to attach to the issue tracker.

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Please download it to our FTP server: ftp://ftp.intellij.net/.uploads/ (anonymous login, .uploads directory has no permissions to list/download files, only for upload, so that other users will not be able to download your snapshots) and provide the file name to the issue in the tracker.

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I uploaded CL-163.9166.31_zerophase_20.12.2016_16.44.31.zip

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