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VS2015 .pch slow compile times

Hey everyone,

I've set up to compile with VS2015 and I'm getting very slow compile times compared to VS2013 (15-30 minutes for a single change as small as correcting a spelling error in a comment) and it's turning out to be related to the pch files. If I delete the pch before each compile, i can get a compile in 2-3 minutes.

In VS2013, I could get a build in about 8-10 seconds for a similar change.

Is there something I can check to try to speed this up a bit?

Thanks!

Product Version: UE 4.10
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asked Mar 24 '16 at 03:59 AM in C++ Programming

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devlyn811
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avatar image devlyn811 Mar 26 '16 at 10:14 PM

As an update to this, deleting the pch for the game module brings compile times to about 45 seconds, sometime a little more or less. Leaving the pch as is still causes 10-30 minute compile times.

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It looks like VS2015 has decided to get with the program. Not sure why, but after a few days of deleting the pch for the project, the issue seems to have gone away. Getting compile times of about 10-30 seconds now without deleting the pch.

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answered Apr 02 '16 at 04:22 AM

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devlyn811
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