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    Mark Cerny Explains Game Caching/Installs

    Call it installation or call it caching, but the bottom line is that you will have to save large chunks of PlayStation 4 games to the system's hard drive. It's not an option. It's mandatory on Sony's next-gen system. Today, at a stylish waterfront hotel in New York City that's been taken over by Sony for all things PS4, the system's lead architect, Mark Cerny, explained just how these requirements work.

    If you are playing a disc-based game, the system will begin caching the disc when you put it in the console and get ready to play. The game is saving part of itself to the system's hard drive. The amount of data that has to be saved before you can start will vary per title.

    Cerny said that for the launch game he directed, Knack, users should only have to wait 10s of seconds to play the game. After that, as you play, the game will stream more content to the console's 500GB hard drive. Knack will use 37GB of space overall, as noted on the game's box. Obviously, it won't take many games to fill the console's hard drive.http://kotaku.com/how-mandatory-game...ps4-1462283797
    Disappointing that its mandatory but we still don't know if the next game I put in will overwrite that space taken by the previous one will will it cache/install in a new chunk of space

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    I just tweeted Cerny and Shu to clarify. Fingers crossed 1 of them answers.

    edit:
    Seems we do know, Ixion attempted to post this as well, theres more to the article than you have posted.

    copy/paste from Ixion's thread that was closed due to this one being open first.
    Call it installation or call it caching, but the bottom line is that you will have to save large chunks of PlayStation 4 games to the system's hard drive. It's not an option. It's mandatory on Sony's next-gen system. Today, at a stylish waterfront hotel in New York City that's been taken over by Sony for all things PS4, the system's lead architect, Mark Cerny, explained just how these requirements work.

    If you are playing a disc-based game, the system will begin caching the disc when you put it in the console and get ready to play. The game is saving part of itself to the system's hard drive. The amount of data that has to be saved before you can start will vary per title.

    Cerny said that for the launch game he directed, Knack, users should only have to wait 10s of seconds to play the game. After that, as you play, the game will stream more content to the console's 500GB hard drive. Knack will use 37GB of space overall, as noted on the game's box. Obviously, it won't take many games to fill the console's hard drive.

    Cached/installed game data will stay on the hard drive until the user deletes it. Cerny said that there had been some internal discussions at Sony about having the PS4 auto-delete installed data from games that players hadn't used in a while. They decided against it, figuring that gamers would never want to feel "blindsided" and would prefer to make their data management decisions manually. Probably a good choice!

    The disc installation is required on PS4 because the console is not designed to read games off of discs. It's not a PlayStation issue. It's a physics issue. The machine may have a Blu-Ray drive that's about three times faster than the PS3 with about six times as much memory, but it's still more expedient for it to read data from its own hard drive. Cerny said his team had heard too many complaints from current-gen developers about having to wait to load in new levels of games. Putting the data on the readily-accessible hard drive alleviates that.
    Last edited by shepard; 11-11-2013 at 19:14.

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    Looks like hard drive upgrades will be mandatory too. o_0 That will fill up fast.


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    IT says you are the manager for your data and PS4 doesn't auto delete any cached data.

    I remember when some PC games didn't install the whole game, they left portions off to save space, usually sounds and FMV.

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    Quote Originally Posted by Itachi View Post
    Disappointing that its mandatory but we still don't know if the next game I put in will overwrite that space taken by the previous one will will it cache/install in a new chunk of space
    nope. previous game data will not be deleted, untill you do. so it will use new space.

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    I wonder what the hard drive capacity limitations will be on the PS4?
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    Quote Originally Posted by MacP View Post
    I wonder what the hard drive capacity limitations will be on the PS4?
    The PS4 will have no limits. It'll be the pinnacle of console gaming!


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    So this is not what everyone was under the impression was going to happen. I knew that sounded a little too good to be true. That sucks.




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    Man I wish we could just use an external HD.
    At first I was happy with a swap able drive an no external,
    but now I realize the other way around is better.
    Hopefully they can add that ability later on.

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    Quote Originally Posted by TEST SUBJECT 83 View Post
    Man I wish we could just use an external HD.
    At first I was happy with a swap able drive an no external,
    but now I realize the other way around is better.
    Hopefully they can add that ability later on.
    It would sure be nice to be able to store data on an external drive for this purpose.


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    With 50GB the norm for next gen games, the internal HDD will fill up quick. But itīs good that Sony let the Players decide what they want to delete and what not. Sure they could have use some form of caching but i prefer to have full control over my HDD capacity.

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    Called it!

    Quote Originally Posted by mynd View Post
    Install the entire game every time you play?
    I really doubt the hdd cache works like that, at all.

    BTW, no where in the Gamasutra interview does Cerny state it gets deleted, or that it some sort of cache.

    I read it as it will copy to you hdd, stay there until such time as you decide to delete it.

    I really don't have an issue with that, and its far more preferable than trying to install the game ever time you play it.
    http://www.psu.com/forums/showthread...nstalled/page2
    Last edited by mynd; 11-11-2013 at 20:10.

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    Haha didn't think that shared 50 gig (or whatever the size) seemed workable. Maybe in the future? lol who knows. But a 1TB+ at launch is not sounding like a bad idea.

    Prob a good thing we can't have MP3s as we'll need all the data for all the games we're gonna get!
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    Quote Originally Posted by mynd View Post
    I called it first, and more accurately!

    http://www.psu.com/forums/showthread...=1#post6232474

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    Quote Originally Posted by Completely Average View Post
    I called it first, and more accurately!

    http://www.psu.com/forums/showthread...=1#post6232474
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    Quote Originally Posted by Completely Average View Post
    I called it first, and more accurately!

    http://www.psu.com/forums/showthread...=1#post6232474
    Only cause I didn't see that thread

    But yeah, this was always going to be the case, anyone asking for a deleted cache was asking for the HDD to do a hell of a lot of work.

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    The install sizes on X1 games are +30GB. Probably the same for ps4

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    I'm crossing my fingers that a future FW update gives the ability to use external storage. I don't play nearly as much as some of the people here, and I'm concerned about filling up 500gb really quickly.

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    Well, I still have installed game data of games I haven't touched in 3 years so I guess that says something about data hoarding lol
    You probably won't be playing more than 10 games at a time anyway

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    Ahh but how big are the game saves?
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    Quote Originally Posted by MacP View Post
    Ahh but how big are the game saves?
    I'm sure they are still not very big. I would say 10-15 mb absolute max.




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    Quote Originally Posted by Itachi View Post
    Disappointing that its mandatory but we still don't know if the next game I put in will overwrite that space taken by the previous one will will it cache/install in a new chunk of space
    Kind of a strange way to put it. On the PC, it isn't mandatory to install, you can choose to not play the game. The PC game reserves hard drive space for itself when it installs. The PS4 isn't installing here, but reserving an equivalent amount of space to a full install. What this shows is how much content there is in these next-gen games. It really can't come off a optical drive fast enough and the hard drive data rate is still so much faster. On the PS4, the game will still be on the BDROM and using the reserved hard drive space as a giant buffer. On a PC, if you install and uninstall a bunch of games, the drive gets really fragmented. Whatever the game OS that Sony uses, it tends to not fragment the drive as much, with defrag housekeeping built-in which is a characteristic of Linux. There must be some dynamic allocation or overwrite planned. With a 500GB standard hard drive and almost every game so far needing almost 50GB, simple arithmetic shows if there isn't dynamic allocation, then you could only have 10 games at a time on the hard drive. The difference between installing and caching is that caching is mostly empty reserved space, the game content is being streamed into it, so allocating and reallocating the space won't write over program data.
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    Blimey. Not good to be honest. Let's say 5-7 games, plus DLC and game saves - boom. You're done (same on the Bone as well).

    I don't buy their decision either to 'let the gamer choose'. Lazy $#@!ers. They could have had a setting where you could choose one of three options: Delete oldest first, Delete games not played for x months, Always ask

    That would have given each individual gamer the choice to decide whether they want to $#@! around being a PS4 console administrator, or have it do it for you based on some basic criteria.

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    Quote Originally Posted by Sparc View Post
    Blimey. Not good to be honest. Let's say 5-7 games, plus DLC and game saves - boom. You're done (same on the Bone as well).

    I don't buy their decision either to 'let the gamer choose'. Lazy $#@!ers. They could have had a setting where you could choose one of three options: Delete oldest first, Delete games not played for x months, Always ask

    That would have given each individual gamer the choice to decide whether they want to $#@! around being a PS4 console administrator, or have it do it for you based on some basic criteria.
    "Cached/installed game data will stay on the hard drive until the user deletes it. Cerny said that there had been some internal discussions at Sony about having the PS4 auto-delete installed data from games that players hadn't used in a while. They decided against it"

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    Quote Originally Posted by Itachi View Post
    "Cached/installed game data will stay on the hard drive until the user deletes it. Cerny said that there had been some internal discussions at Sony about having the PS4 auto-delete installed data from games that players hadn't used in a while. They decided against it"
    Yeah I read that. Seems like it was too much hassle to implement some housekeeping options in the menu and that's his way of trying to sell the 'solution'. I don't want to $#@! around finding space, I want to set some basic criteria (like I do on my TiVO box) and have it manage the space. I turn my console on for gaming, not to do some admin.

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