VSC freezes when debugging

[BVazquezAlvarez]

Issue Type: Performance Issue

When debugging step by step with VSC + xdebug VSC freezes on every step ~30 seconds.

VS Code version: Code 1.30.2 (61122f8, 2019-01-07T22:54:13.295Z)
OS version: Windows_NT x64 10.0.17763

System Info

Item	Value
CPUs	Intel(R) Core(TM) i7-3630QM CPU @ 2.40GHz (8 x 2395)
GPU Status	2d_canvas: enabled checker_imaging: disabled_off flash_3d: enabled flash_stage3d: enabled flash_stage3d_baseline: enabled gpu_compositing: enabled multiple_raster_threads: enabled_on native_gpu_memory_buffers: disabled_software rasterization: enabled video_decode: enabled video_encode: enabled webgl: enabled webgl2: enabled
Memory (System)	7.89GB (0.88GB free)
Process Argv
Screen Reader	no
VM	0%

Process Info

CPU %	Mem MB	   PID	Process
    0	    67	  4596	code main
    0	    42	  6336	   shared-process
    0	   114	  8548	   gpu-process
    0	    69	  9236	   window (Reportero de tema)
    0	   261	 14876	   window (System.class.php - tokappschool - Visual Studio Code)
    0	   120	  2208	     extensionHost
    0	    12	  3784	       electron_node tsserver.js 
    0	     7	 10628	         electron_node typingsInstaller.js typesMap.js 
    0	   249	  4164	       C:\xampp\php\php.exe c:\Users\Borja\.vscode\extensions\felixfbecker.php-intellisense-2.3.10\vendor\felixfbecker\language-server\bin\php-language-server.php --tcp=127.0.0.1:55489 --memory-limit=4095M
    0	     5	  8620	         console-window-host (Windows internal process)
    0	    35	  4664	       electron_node server.js 
    0	    13	 16920	       "C:\Program Files\Microsoft VS Code\Code.exe" "c:\Program Files\Microsoft VS Code\resources\app\extensions\json-language-features\server\dist\jsonServerMain" --node-ipc --clientProcessId=2208
    0	    12	  9500	     watcherService 
    0	     5	 11676	       console-window-host (Windows internal process)
    0	    11	 12064	     electron-crash-reporter
    0	     5	 13836	     winpty-process
    0	     4	  4900	       C:\WINDOWS\System32\cmd.exe
    0	     7	 16568	       console-window-host (Windows internal process)
    0	    32	 13964	     electron_node phpDebug.js 
    0	     4	  4300	       electron_node index.js 
    0	     1	 16488	         console-window-host (Windows internal process)
    0	    21	 14328	     searchService

Workspace Info

|  Window (System.class.php - tokappschool - Visual Studio Code)
|    Folder (tokappschool): 13426 files
|      File types: php(8392) svg(1336) js(1275) png(471) css(266) json(155)
|                  txt(155) less(130) scss(120) lang(120)
|      Conf files: package.json(14) makefile(6) grunt.js(4) gulp.js(2)
|                  launch.json(1) settings.json(1)
|      Launch Configs: node php;

Extensions (23)

Extension	Author (truncated)	Version
html-snippets	abu	0.2.1
vscode-css-formatter	aes	1.0.1
vscode-intelephense-client	bme	0.8.8
jquerysnippets	don	0.0.1
vscode-html-css	ecm	0.2.0
php-debug	fel	1.12.6
php-intellisense	fel	2.3.10
beautify	Hoo	1.4.7
Angular2	joh	7.0.1
vscode-apache	mrm	1.2.0
vscode-language-pack-es	MS-	1.30.2
team	ms-	1.144.1
php-docblocker	nei	1.7.0
laravel-blade	one	1.18.0
Angular2	pav	0.0.1
vscode-docker	Pet	0.5.0
vscode-icons	rob	8.0.0
laravel-artisan	rya	0.0.24
laravel-5-snippets	sac	2.0.1
git-autoconfig	shy	0.0.1
es6-mocha-snippets	spo	0.2.2
prettify	whi	0.0.2
JavaScriptSnippets	xab	1.7.2

[vscodebot]

(Experimental duplicate detection)
Thanks for submitting this issue. Please also check if it is already covered by an existing one, like:

• [Feature Request]: if we can support paste file or folder which copied from Desktop (#17791)
• On Mac, if VSC is hidden, then opening it from Terminal opens new window in background (#48441)

[RMacfarlane]

Possibly related to #66224

[vscodebot]

This issue is caused by an extension, please file it with the repository (or contact) the extension has linked in its overview in VS Code or the marketplace for VS Code. See also our issue reporting guidelines.

Happy Coding!