Code Helper running at 100% CPU

[gtb104]

Issue Type: Performance Issue

My Macbook Pro turned into a space heater after the CPU was pegged out. The process that was running over 100% was Code Helper. This happened while VS Code did not have focus (I was using Chrome at the moment).

Here's some process Info

cwd / txt /Applications/Visual Studio Code.app/Contents/Frameworks/Code Helper.app/Contents/MacOS/Code Helper txt /Applications/Visual Studio Code.app/Contents/Frameworks/Electron Framework.framework/Versions/A/Electron Framework txt /Applications/Visual Studio Code.app/Contents/Frameworks/Squirrel.framework/Versions/A/Squirrel txt /Applications/Visual Studio Code.app/Contents/Frameworks/ReactiveCocoa.framework/Versions/A/ReactiveCocoa txt /Applications/Visual Studio Code.app/Contents/Frameworks/Mantle.framework/Versions/A/Mantle txt /usr/lib/libSystem.B.dylib txt /Applications/Visual Studio Code.app/Contents/Frameworks/Electron Framework.framework/Versions/A/Libraries/libnode.dylib txt /System/Library/Frameworks/IOKit.framework/Versions/A/IOKit txt /Applications/Visual Studio Code.app/Contents/Frameworks/Electron Framework.framework/Versions/A/Libraries/libffmpeg.dylib txt /System/Library/Frameworks/AVFoundation.framework/Versions/A/AVFoundation txt /System/Library/Frameworks/CoreMIDI.framework/Versions/A/CoreMIDI txt /usr/lib/libsandbox.1.dylib txt /System/Library/Frameworks/CFNetwork.framework/Versions/A/CFNetwork txt /usr/lib/system/libdyld.dylib txt /usr/lib/system/libsystem_kernel.dylib txt /usr/lib/system/libsystem_sandbox.dylib txt /usr/lib/system/libkxld.dylib txt /usr/lib/libexpat.1.dylib txt /Applications/Visual Studio Code.app/Contents/Frameworks/Electron Framework.framework/Versions/A/Resources/icudtl.dat txt /Applications/Visual Studio Code.app/Contents/Frameworks/Electron Framework.framework/Versions/A/Resources/snapshot_blob.bin txt /Applications/Visual Studio Code.app/Contents/Frameworks/Electron Framework.framework/Versions/A/Resources/natives_blob.bin txt /usr/lib/dyld txt /usr/share/icu/icudt57l.dat txt /private/var/db/dyld/dyld_shared_cache_x86_64h 0 ->0x85804365c3c335e9 1 ->0x85804365c3c33e81 2 ->0x85804365c3c34651 3 ->0x85804365c3c32c89 4 /Applications/Visual Studio Code.app/Contents/Frameworks/Electron Framework.framework/Versions/A/Resources/icudtl.dat 5 ->0x85804365be2f4589 6 ->0x85804365be2f29c9 7 count=3, state=0x8 8 ->0x85804365be2f4649 9 ->0x85804365be2f2909 10 ->0x85804365be2f4889 11 ->0x85804365be2f2fc9 12 /Applications/Visual Studio Code.app/Contents/Frameworks/Electron Framework.framework/Versions/A/Resources/snapshot_blob.bin 13 /Applications/Visual Studio Code.app/Contents/Frameworks/Electron Framework.framework/Versions/A/Resources/natives_blob.bin 14 /dev/urandom 15 /dev/null 16 ->0x85804365b2e34e19 17 ->0x858043659a67e4b9 18 ->0x85804365beba7589 19 /var/folders/vw/b6mdptss0rn3q6h3p4247g_ngjctjp/T/vscode-d6b7e6916e601fcfe937153579a61f3c91b36f61.sock 24 ->0x85804365ba38ab61 25 /Applications/Visual Studio Code.app/Contents/Resources/electron.asar 26 /Applications/Visual Studio Code.app/Contents/Resources/app/node_modules.asar 27 /Applications/Visual Studio Code.app/Contents/Resources/app/node_modules.asar

VS Code version: Code 1.24.0 (6a6e02c, 2018-06-06T17:30:30.113Z)
OS version: Darwin x64 16.7.0

System Info

Item	Value
CPUs	Intel(R) Core(TM) i7-4770HQ CPU @ 2.20GHz (8 x 2200)
GPU Status	2d_canvas: enabled flash_3d: enabled flash_stage3d: enabled flash_stage3d_baseline: enabled gpu_compositing: enabled multiple_raster_threads: enabled_on native_gpu_memory_buffers: enabled rasterization: enabled video_decode: enabled video_encode: enabled vpx_decode: enabled webgl: enabled webgl2: enabled
Load (avg)	3, 3, 2
Memory (System)	16.00GB (2.56GB free)
Process Argv	/Applications/Visual Studio Code.app/Contents/MacOS/Electron
Screen Reader	no
VM	0%

Process Info

CPU %	Mem MB	   PID	Process
   12	    98	 31071	code main
    0	   115	 31072	   gpu-process
    0	   246	 31073	   window (component.js — sa-ui)
    0	    98	 31248	     extensionHost
    0	    49	 31272	       electron_node jsonServerMain.js 
  100	   246	 34066	       electron_node electronForkStart.js tsserver.js 
    0	    66	 34071	         electron_node typingsInstaller.js tsserver.js typesMap.js 
    0	    82	 34067	       electron_node eslintServer.js 
    0	   115	 31249	     watcherService
    0	    66	 34068	     searchService
    0	    82	 31074	   shared-process
    0	    98	 37380	   shared-process
    0	     0	 37382	   /bin/ps -ax -o pid=,ppid=,pcpu=,pmem=,command=

Workspace Info

|  Window (component.js — sa-ui)
|    Folder (sa-ui): more than 51748 files
|      File types: js(36435) scss(3430) css(2393) json(1038) png(1029) md(831)
|                  hbs(688) gitkeep(677) map(628) html(515)
|      Conf files: package.json(573) gulp.js(13) jsconfig.json(12)
|                  launch.json(2) makefile(1) settings.json(1);

Extensions (11)

Extension	Author (truncated)	Version
ember-module-snippets	can	1.1.0
vscode-eslint	dba	1.4.12
vscode-babel-coloring	dza	0.0.4
emberjs	emb	1.0.1
vscode-ember	emb	0.2.0
json-tools	eri	1.0.2
vsc-ember-cli	fel	0.3.3
vscode-ember-snow	gtb	0.0.1
ember-related-files	jos	1.3.0
EmberES6Snippets	pha	2.3.3
ayu	tea	0.14.0

[velozmontero]

What is the deal with these crazy code helpers since the last update. My Macbook Pro's CPU is going over 100%. So frustrating ...

[RMacfarlane]

CPU %	Mem MB	   PID	Process
   12	    98	 31071	code main
    0	   115	 31072	   gpu-process
    0	   246	 31073	   window (component.js — sa-ui)
    0	    98	 31248	     extensionHost
    0	    49	 31272	       electron_node jsonServerMain.js 
  100	   246	 34066	       electron_node electronForkStart.js tsserver.js 
    0	    66	 34071	         electron_node typingsInstaller.js tsserver.js typesMap.js 
    0	    82	 34067	       electron_node eslintServer.js 
    0	   115	 31249	     watcherService
    0	    66	 34068	     searchService
    0	    82	 31074	   shared-process
    0	    98	 37380	   shared-process
    0	     0	 37382	   /bin/ps -ax -o pid=,ppid=,pcpu=,pmem=,command=

From the process info, it looks like the typescript server is causing the problem

[vesper8]

I'm tempted to open a new issue but I'll just add to this one. Last time I opened an issue about the crazy Code Helper.. which btw doesn't even quit after you quit VSCode!!!!!!!!!!

The only unhelpful reply I got was to use the 'Open Process Explorer' from the help menu to try and debug the problem

Well yet again my Code Helper in Activity Monitor was going at 99% CPU.. and I did use the Open Process Explorer and it was not helpful at all! See below screenshots! These were taken at the same time!

[mjbvz]

@gtb104 Please test in the latest vscode insiders build with all extensions disabled. If you still see the issue, try upgrading your workspace to typescript@next by following these instructions

[farfromrefug]

@mjbvz It happens to me a lot on mac with all versions including the very last insider build.
It mostly happens with projects with very big .d.ts files.
I can almost always reproduce it after working for a while with nativescript projects. They use an android.d.ts which is really big.

[farfromrefug]

@mjbvz is there any way to get a tsserver log file? I am having the issue right now. If i could enable a log and get it for you i think it would greatly help

[mjbvz]

To collect the TS Server log:

1. Set "typescript.tsserver.log": "verbose",
2. Restart VS Code and reproduce the problem
3. In VS Code, run the TypeScript: Open TS Server log command
4. This should open a folder with a tsserver.log file in it

Look though that log file for errors or stack traces. If you can share the log, I can also take a look to see if anything stands out

⚠️Warning: The TypeScript log may include information from your workspace, including file paths and source code. If you have any concerns about posting this publicly on Github, just let me know and we can arrange something else. On our side, we only use these logs to investigate issues like this

[farfromrefug]

@mjbvz just facing it right now. CPU to 100%, vscode stuck searching after trying to click on a reference to open it.

Here is my log file. I hope you will find something
tsserver.log

EDIT: @mjbvz here is another one i am having right now (different project). This is one is quite big but might have more info
tsserver.log.zip

[tomastech]

I am experiencing this issue too on my macbook and imac, both running macOS HS 10.13.5. The process continues even when VSCode is closed.