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Full Discussion: Poor Windows 10 Performance of Parallels Desktop 15 on macOS Catalina
Special Forums Windows & DOS: Issues & Discussions Poor Windows 10 Performance of Parallels Desktop 15 on macOS Catalina Post 303043266 by Neo on Thursday 23rd of January 2020 01:24:53 AM
Old 01-23-2020
Update:

Trying Parallels again on the 12-core Mac Pro running Catalina.

It's running a bit better since I repartitioned the boot disk.

Later, I will try installing NI-VISA and UltraScope for the RIGOL DS1054Z and see if I can get it to connect to the oscope, by isolating Windows 10 completely from the Mac. Earlier, I did not fully isolate them and had some problem connecting, so maybe if I isolate Windows 10 as much as possible from the Mac (an option in Parallels config) I can get RIGOL UltraScope to work.

It's only an "experiment", as I don't have an real intention to use UltraScope; I just want to see if I can get it to work since so much test equipment software (like software for arbitrary waveform generators and power supplies) are not supported on macOS, I thought "maybe" Parallels could be an option to get this Mac talking to various pieces of test gear; especially since I plan to buy an arbitrary waveform generator (AWG) in the $100 USD price range from AliExpress vendors after the Lunar New Year holiday is over and the Chinese businesses are back to work.
 

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LEARN ABOUT OPENSOLARIS

update-desktop-database

update-desktop-database(1)					   User Commands					update-desktop-database(1)

NAME

       update-desktop-database - Desktop file caching utility

SYNOPSIS

       update-desktop-database [--help] [--verbose] [--quiet] [filepath]

DESCRIPTION

       update-desktop-database creates cache files for desktop file MIME type mapping for improved MIME lookup performance.

       It  expects  to	be  given  the	path  to  a  directory	or  directories  containing a number of application installed .desktop files, e.g.
       /usr/share/applications, and writes a mime-info.cache containing cached information about the MIME types that each application can  handle.
       If  no directory is provided, this utility will use a default directory list as specified in the FreeDesktop MIME specification. This cache
       file is used to avoid a lot of system call and disk seek overhead in a number of applications.

OPTIONS

       The following options are supported:

       -?, --help		       Show help options.

       -v, --verbose		       Turn on verbose output.

       -q, --quiet		       Do not provide any output.

OPERANDS

       The following operands are supported:

       filepath 	       The path to a directory or directories containing a number of application installed .desktop files.

EXIT STATUS

       The following exit values are returned:

       0	Application exited successfully

       1	Application exited with failure

FILES

       The following files are used by this application:

       /usr/bin/update-desktop-databaseThe command-line executable for the application.

       /usr/share/applications	       System desktop file directory

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWgnome-desktop-prefs	   |
       +-----------------------------+-----------------------------+
       |Interface stability	     |Committed 		   |
       +-----------------------------+-----------------------------+

SEE ALSO

       update-mime-database(1), gnome-desktop-item-edit(1), attributes(5), gnome-interfaces(5)

       Latest version of the GNOME Desktop User Guide and GNOME System Administration Guide for your platform.

NOTES

       Written by Glynn Foster, Sun Microsystems Inc., 2007.

SunOS 5.11							    31 Jan 2007 					update-desktop-database(1)
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