timeshift to memory (1 Viewer)

[logifett]

Started on: 2007-02-02
last update: 2007-02-02

Summary:
option to change timeshift to file or memory,
or, if possibe, stream to clients directly without timeshift.

Description:
timeshift to harddisk means that the harddrive is running all the time. it may be better to stream the data to the client without timeshift or to ram.
the client can do the timeshifting or the user can config where to timeshift (server or client).

logifett

 

[dhanjel]

That would be really great, you avoid the defragmentation as well.
And as soon as you start recording, it stores it on a harddrive instead.

 

[Marcusb]

Just remember that your PC will need an awful lot of RAM for this. Even if there is enough RAM, windows will also probably try to store some on the page file, so the drive may still be accessed too.

 

[risu]

You can actually make this happen already by using some ramdisk software. Ramdisk is a software which emulates HD with ram. Keep in mind what Marcusb said, you'll need lots of memory to do that, few gb's.

 

[logifett]

Marcusb:
Your'e right, the pagefile will be stored on the harddrive. I am running MediaPortal on a Intel Mac Mini with XP and 1,2 GB of RAM and using the TechnoTrend TT-connect S2-3600 for DVB-S/DVB-S2.
When MP is running without TVengine3 there is ~480 MB or free RAM. So the Mini's Harddrive goes to sleep and the Mini is running with ~32 Watts (btw: try to build an PC that is running efficent!).

Unfortunelly TVEngine2 is not able to recieve the DVB-S2 channels yet (hope someone will add this feature soon) and so I give TVEngine3 a try...

Other question: Does anybody know about an driver for XP for the MacMini build-in IT-reciever? (Not the driver for vista)

regards
logifett

 

[logifett]

You can actually make this happen already by using some ramdisk software. Ramdisk is a software which emulates HD with ram. Keep in mind what Marcusb said, you'll need lots of memory to do that, few gb's.

I tried ramdisk: Doesn't work. Log: "Unable to create file" When I try to copy a file to the ramdisk with the fileexplorer it works?!

 

[infinite.loop]

erm..... anyone tried to calculate the amount of memory you need for that?
i.e. timeshift 2x PAL Movies
or 1x 1080i HD-TV movie.

in most cases (512MB ram 1024MB ram) you are not even able to timeshift one episode of the simpsons

sorry to say that, but that idea is a "bit" far away from what is possible.
as soon as 10GB RAM are common we can talk about it again

 

[Marcusb]

RamDisk should work, but I don't think it's possible to store the TimeShift data in a different location than the recording path. Main reason for this is that when you press record and timeshift is transfered to disk if it was kept in a different location it would probably impact TV while up to a Gig was tranferred to hard drive while recording at the same time. There was a discussion a long time ago about the possibility but I have no idea where it would be now.

Got to love the Mac Mini's. I've always been an AMD/MS boy up until now, but the Mini does call me in a very seductive way ;-)

 

[logifett]

@infinityloop:
Good point. But what when you are watching live-tv? May the solution is to start timeshift to a file only when the user pause the tv. I see that the tvserver timeshift-files on my computer are ~250MB big when watching a H.264 HD channel.

 

[tourettes]

RamDisk should work, but I don't think it's possible to store the TimeShift data in a different location than the recording path. Main reason for this is that when you press record and timeshift is transfered to disk if it was kept in a different location it would probably impact TV while up to a Gig was tranferred to hard drive while recording at the same time. There was a discussion a long time ago about the possibility but I have no idea where it would be now.

TV Engine3 supports different folders for timeshifting and recordings.