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usePolling: false does not work on Mac #62

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vojtajina opened this issue Oct 21, 2013 · 5 comments
Closed

usePolling: false does not work on Mac #62

vojtajina opened this issue Oct 21, 2013 · 5 comments

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@vojtajina
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This is more a question - what is the state of fs.watch vs. fs.watchFile ?

My observations...
linux:

  • usePolling false (fs.watch) seems to be working pretty well
  • it fires "add" event twice, but that's easy to deal with
  • much more efficient than stat polling (huge CPU usage)

mac:

  • after initial add, first change works, but subsequent changes are ignored
  • also it hits file descriptor limit very easily

windows:

  • ???
@vojtajina vojtajina mentioned this issue Oct 22, 2013
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@dignifiedquire
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For windows both versions are very inefficient and unreliable. The only solution I've found to get something decent on windows is using powershell scripts that directly interact with the event apis from windows.

@paulmillr
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Worked for me just great on windows, not sure. I confirm osx behaviour, that's why i didn't want to implement it

@dignifiedquire
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For small projects it might work on windows, but using network drives + large folders that get copied in/out and moved around this breaks down very quickly.

vojtajina added a commit to vojtajina/karma that referenced this issue Oct 31, 2013
@vojtajina
feat(config): add usePolling config
18514d6 
This config option is forwarded to chokidar. When set to `true` (default value is `false`), chokidar uses `fs.watch` instead of stat polling.

This seems to be finally working well on linux, however it does not work on Mac.
See paulmillr/chokidar#62

That's why I'm leaving it undocumented ;-)
@paulmillr
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Folks -- what do you think about using fs.watch by def on linux?

@vojtajina
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@paulmillr I always use fs.watch on linux it works well and the CPU consumption is so much better. So I vote yes.

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3 participants
@vojtajina @paulmillr @dignifiedquire