XPost: uk.comp.os.linux, alt.comp.microsoft.windows, alt.comp.os.windows-11   
   From: V@nguard.LH   
      
   Anssi Saari  wrote:   
      
   > VanguardLH  writes:   
   >   
   >> Anssi Saari  wrote:   
   >>   
   >>> Dan Purgert  writes:   
   >>>   
   >>>> Win10, 11 have that "FastBoot" thing that mucks with hardware releases   
   >>>> on "reboot" (win basically goes into hibernate).   
   >>>   
   >>> No. Reboot is always reboot, Windows would be completely useless without   
   >>> that. "FastBoot" aka fast startup happens when shutting down if not   
   >>> disabled. And it's hibernate without hibernating apps so fairly useless.   
   >>   
   >> Actually Fast Starup is a full hibernate (all memory copied into the   
   >> hyberfil.sys file).   
   >   
   > Source? For example here:   
   > https://learn.microsoft.com/en-us/windows-hardware/test/weg/de   
   ivering-a-great-startup-and-shutdown-experience   
   > "Starting with Windows 8.x, the default shutdown and restart scenario   
   > has been updated and named fast startup. Fast startup begins with the   
   > shutdown process and includes writing data to disk similar to the   
   > hibernate process. A key difference is that all user sessions (Session   
   > 1) are logged off and the remaining information is written to the   
   > hiberfile."   
   >   
   > When user sessions are logged off, all user apps die and so aren't   
   > written to the hiberfil.sys, which, as I stated, makes this "fast   
   > startup" fairly useless.   
      
   Depends on whether or not you chose to sleep (whether manually   
   instigated, or by idle timeout) or shutdown while Fast Startup (aka   
   FastBoot) was enabled.   
      
   On sleep, Fast Startup saves an image of memory into the hiberfil.sys   
   file.  That's in case power is lost during sleep which means a reboot is   
   needed, so the hiberfil.sys file is used to write back the memory image   
   on the boot.  If power is not lost during sleep mode, well, you just   
   resume out of sleep mode.   
      
   On shutdown, yep, you chose to exit your Windows session(s), but the   
   reboot will still use the hiberfil.sys file to get more quickly get back   
   to the logon state.  Fast Startup does not alter that a shutdown logs   
   you out.  Fast Startup with shutdown does not waste the time nor disk   
   space to write a hiberfil.sys file to record your Windows session.  With   
   Fast Startup enabled, it saves a memory image only for the OS kernel and   
   drivers.  The point of Fast Startup aka FastBoot is to get Windows   
   booted faster, not restore your Windows session(s).  You get to the   
   logon screen faster.  It is Fast*Boot*.  Not FastSessionRestore.   
      
   Perhaps I wasn't clear.  Saving "all memory" into the hiber file is not   
   while you have a Windows session.  It is at the point of the logon   
   screen to reload a memory image for that state instead of having to wait   
   for the kernel to load, all drivers to load, all services to start, etc.   
      
   Fast Startup may speed up booting, but it slows shutdown.  When the   
   computer goes into sleep mode, you don't notice the writes to   
   hiberfil.sys.  Users are more sensitive to how long it takes them to   
   resume using Windows, because they're waiting there staring at the   
   monitor.  They are less sensitive to what happens going to sleep, or   
   during shutdown, because typically they leave, so they are not waiting.   
   Faster startup, slower shutdown.   
      
   If you slept your computer (manually instigated, or by idle timeout),   
   you can exit sleep mode to get back into your Windows session assuming   
   the computer never lost power.  If power was lost during sleep, yes,   
   Fast Startup gets you more quickly up to the logon screen, because the   
   kernel, driver, and services were reinstated from the memory image, not   
   from having to load them from scratch.   
      
   If you hibernated (manually instigated, or by timeout), that should be a   
   regular hibernate, so you resume your Windows session when you boot.   
      
   If you shutdown, why would you expect your Windows session(s) to get   
   saved?   
      
   If you lost power to the computer while in a Windows session (i.e., not   
   sleeping), how could anything no longer running still write into the   
   hiber file to restore a Windows session that was nuked by a power   
   outage?   
      
   FastBoot (aka Fast Startup) is for faster booting, not for Windows   
   session resume.  Use sleep mode to resume Windows sessions, and hope   
   your computer doesn't lose power while sleeping.  If power is lost while   
   sleeping, Fast*Boot* gets to the logon screen faster.   
      
   With SSDs, especially with m.2 NVMe SSDs, getting much more common for   
   the OS disk, FastBoot provides little in a faster boot time, but causes   
   lots of headaches when troubleshooting.  I suspect FastBoot will   
   eventually fade away (get deprecated), like how ReadyBoost has faded   
   away (using USB flash drives or SD cards to add a faster drive-to-RAM   
   cache for HDDs despite HDDs already have a small cache, but ReadyBoost   
   could never be as fast as adding more real RAM).  ReadyBoost was   
   oriented to old computers still using HDDs for the OS disks.  FastBoot   
   was oriented toward old and slow computers.  Little point using either   
   today with typically larger RAM configs, and with SSDs, especially   
   NVMEs, replacing HDDs.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)