sabvre42 said:
SvennoJ said:
SWORDF1SH said:
But the car poolers probably became more efficient and started to share cars so 1 lane is sufficient
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It's fun to speculate, could be many things.
OS might be more efficient now, or maybe the extra cpu was held back in case tv, dvr, snap, internet browser etc, became very important. Same with all the memory resevered for the OS. Since the strongest selling point is games, the reserved resources can now be made available.
The less the OS does in the background the better anyway. With only 1 slow hdd to share, anything the OS does has an impact on the game you're running.
Back to the carpool lanes, 2 lanes were available when the highway opened. Not enough people were interested in car pooling, thus the extra lane was better used for the general public. Same with XBox One where reservations for Kinect proved to be pointless.
It would be interesting to know what kind of plans they might have had. For what the OS does now you don't need 2 cores. Doesn't the ps4 have an extra low power chip already for background downloads? http://vr-zone.com/articles/second-ps4-processor-extra-gddr3-ram-revealed/64081.html So what does the OS do while a game is running.
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OS features that should be segregated:
Trophies
Party Chat/ Messaging
PS Music/ Media Player Music
Notifications
Downloading
Navigating around the OS (including PS store)
Screen shots
Game play sharing/recording
Streaming to a remote play device
Internet Connection Maintanence
Audio streaming (to the DS4/ Gold headset)
etc
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All this OS talk. Memory is more important to the OS and its smoothness or speed than gwoevee many cores are reserved for it.
The "Background" tasks handled by the OS are usually very basic tasks. most conokex of which is probably in game music, party chat/cross chat.... etc. But that's basically it. Proof is that there isn't part of the GPU being reserved for the OS When you leave the game, and go back to the OS, the "background" core/hypervisor just switches task priority from app memory (5GB) to system memory (3GB). so basically, All other CPU cores and all of the GPU suspends whatever jobs they were doing and switches to resuming whatever jobs were previously suspended on the OS side of things. its kinda how smartphones manage their processing resources.
The only thing that can really noticeably affect OS performance is how much memory is being reserved for it. As long as most of the OS is stored in system ram it will be super snappy. If system ram is OS allotment is dropped then parts of the OS would be cached to the HDD (ps3) and shuffling the data to and fro will cause hiccups.
