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Run gimx.exe with elevated privileges to improve timer accuracy #480

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matlo opened this issue Oct 6, 2017 · 4 comments
Closed

Run gimx.exe with elevated privileges to improve timer accuracy #480

matlo opened this issue Oct 6, 2017 · 4 comments
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GIMX 8.0
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GIMX 8.0

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@matlo
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matlo commented Oct 6, 2017 •
edited

When enabling "Run as administrator" in the compatibility options for gimx.exe, the following registry entry gets created:

HKEY_CURRENT_USER\Software\Microsoft\Windows NT\CurrentVersion\AppCompatFlags\Layers
REG_SZ C:\Program Files\GIMX\gimx.exe RUNASADMIN
@matlo matlo added this to the GIMX 8.0 milestone Sep 19, 2019
@matlo matlo added the GIMX 8.0 label Sep 19, 2019
@matlo
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matlo commented Sep 19, 2019 •
edited

Elevated privileges allow setting the realtime priority class that improves timer accuracy when combined with using thread affinity.

@matlo matlo changed the title Check if admin priviledges can improve performances on Windows Run gimx.exe with elevated privileges to improve time accuracy Sep 19, 2019
@matlo matlo changed the title Run gimx.exe with elevated privileges to improve time accuracy Run gimx.exe with elevated privileges to improve timer accuracy Sep 19, 2019
@matlo
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matlo commented Sep 20, 2019 •
edited

The following inno setup entry sets in the registry to run gimx.exe as administrator:
Root: HKLM; Subkey: "Software\Microsoft\Windows NT\CurrentVersion\AppCompatFlags\Layers"; ValueType: string; ValueName: "{app}\gimx.exe"; ValueData: "RUNASADMIN"
but it looks better to leave the choice to the user.

@matlo
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matlo commented Sep 20, 2019 •
edited

There does not seem to be any equivalent to Linux's root suid (that allows to run a binary as the file owner).

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matlo commented Oct 4, 2019

Fixed on the gimxfile branch.

@matlo matlo closed this as completed Oct 4, 2019
matlo pushed a commit that referenced this issue Oct 4, 2019
Run gimx.exe with elevated privileges to improve timer accuracy #480
042ea61
matlo pushed a commit that referenced this issue Oct 4, 2019
Run gimx.exe with elevated privileges to improve timer accuracy #480
7cdb619
matlo pushed a commit that referenced this issue Oct 4, 2019
Run gimx.exe with elevated privileges to improve timer accuracy #480
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