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Started on: 2023-12-26
last update: 2023-12-26

Summary:
Minimize the amount of data written to disk by simulating a tempfs RAM disk on Windows via file open attributes
FILE_ATTRIBUTE_TEMPORARY
FILE_FLAG_DELETE_ON_CLOSE

Area:
TVServer

Description:
Time shift files are just used temporary. As they can take quite some space, virtual memory (im my case 16 GB RAM + 32 GB swapfile) is most likely to small. So they have to be written on disk (current situation). Windows can "simulate a RAM disk" by opening/creating the time shift files with the attributes
FILE_ATTRIBUTE_TEMPORARY
FILE_FLAG_DELETE_ON_CLOSE
Such files are written to disk only if necessary (Windows and its memory management take care of it).

The advantage is that the disk/SSD has less written data and thus less wear and less power consumption.

I don't know whether this flags are available from C#. I don't know how the flags behave when the file is opened multiple times (TVServer writing it and TVServer reading it (RTSP) or MediaPortal client reading it).

[URL unfurl="true"]https://en.wikipedia.org/wiki/List_of_RAM_drive_software#Native[/URL]

I don't know the MediaPortal source code, so usage of this flags might be already the case.

<blockquote data-quote="Andy_2639" data-source="post: 1296408" data-attributes="member: 161048">Started on: 2023-12-26last update: 2023-12-26Summary:Minimize the amount of data written to disk by simulating a tempfs RAM disk on Windows via file open attributes<ul>
<li data-xf-list-type="ul">FILE_ATTRIBUTE_TEMPORARY</li>
<li data-xf-list-type="ul">FILE_FLAG_DELETE_ON_CLOSE</li>
</ul>Area:TVServerDescription:Time shift files are just used temporary. As they can take quite some space, virtual memory (im my case 16 GB RAM + 32 GB swapfile) is most likely to small. So they have to be written on disk (current situation). Windows can &quot;simulate a RAM disk&quot; by opening/creating the time shift files with the attributes<ul>
<li data-xf-list-type="ul">FILE_ATTRIBUTE_TEMPORARY</li>
<li data-xf-list-type="ul">FILE_FLAG_DELETE_ON_CLOSE</li>
</ul>Such files are written to disk only if necessary (Windows and its memory management take care of it).The advantage is that the disk/SSD has less written data and thus less wear and less power consumption.I don't know whether this flags are available from C#. I don't know how the flags behave when the file is opened multiple times (TVServer writing it and TVServer reading it (RTSP) or MediaPortal client reading it).[URL unfurl=&quot;true&quot;]https://en.wikipedia.org/wiki/List_of_RAM_drive_software#Native[/URL]I don't know the MediaPortal source code, so usage of this flags might be already the case.</blockquote>

[QUOTE="Andy_2639, post: 1296408, member: 161048"] [B]Started on:[/B] 2023-12-26 [B]last update:[/B] 2023-12-26 [B]Summary:[/B] Minimize the amount of data written to disk by simulating a tempfs RAM disk on Windows via file open attributes [LIST] [*]FILE_ATTRIBUTE_TEMPORARY [*]FILE_FLAG_DELETE_ON_CLOSE [/LIST] [B]Area:[/B] TVServer [B]Description:[/B] Time shift files are just used temporary. As they can take quite some space, virtual memory (im my case 16 GB RAM + 32 GB swapfile) is most likely to small. So they have to be written on disk (current situation). Windows can "simulate a RAM disk" by opening/creating the time shift files with the attributes [LIST] [*]FILE_ATTRIBUTE_TEMPORARY [*]FILE_FLAG_DELETE_ON_CLOSE [/LIST] Such files are written to disk only if necessary (Windows and its memory management take care of it). The advantage is that the disk/SSD has less written data and thus less wear and less power consumption. I don't know whether this flags are available from C#. I don't know how the flags behave when the file is opened multiple times (TVServer writing it and TVServer reading it (RTSP) or MediaPortal client reading it). [URL unfurl="true"]https://en.wikipedia.org/wiki/List_of_RAM_drive_software#Native[/URL] I don't know the MediaPortal source code, so usage of this flags might be already the case. [/QUOTE]