[wix-users] Slowness of Heat.exe without -sreg

[Blair Murri]

Harvesting self-registration requires several steps involving setting up and tearing down partial isolation and registry enumeration to collect the results, done serially because it's all in-process, which takes a lot more time than simply walking a directory tree and spitting out a bunch of xml. Then there's also the time spent probing every single binary to see if it's capable of self-registration, which is also suppressed with -sreg.

It would be an interesting feature to move the registration harvesting portion out-of-process and and allow it to run in parallel. With multiple cores, it may reduce the overall time somewhat, but I wouldn't try hazarding any guesses of how much.

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From: wix-users <wix-users-bounces at lists.wixtoolset.org> on behalf of Ven H via wix-users <wix-users at lists.wixtoolset.org>
Sent: Monday, February 11, 2019 10:28:25 PM
To: WiX Toolset Users Mailing List
Cc: Ven H
Subject: [wix-users] Slowness of Heat.exe without -sreg

I am using Heat to harvest a very large folder (with nested folders). It
also has COM components. If I use -sreg, it harvests relatively faster
(within 5 mins), but if I don't use -sreg, it takes a really long time
(around 40 mins). Anyone has any suggestions? Please help.

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