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#1
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Hiberfil.sys needed?
Hello.
I have 16GB RAM in my desktop. Do I need this file Hiberfil.sys? I do not put my computer into standby. |
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#2
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Hiberfil.sys needed?
On 07/07/2018 11:25, Dan wrote:
Hello. I have 16GB RAM in my desktop. Do I need this file Hiberfil.sys? It depends ... I do not put my computer into standby. Are you sure? If it's a desktop, I guess you will be pretty certain, but if it's a laptop, do you ever close the lid, because, depending on the power settings, that will likely put it into either standby or hibernation. Note that there is a difference between the two. AIUI ... Standby is a reduced power mode, but the computer is still 'running' - it's running state remains in RAM memory - and therefore drawing some power. Hibernation is a form of shutdown where the running state of the computer is saved to hard disk for quick retrieval, and therefore requires nominally no power at all, though most modern PCs still draw very small amounts of power even when turned off, to preserve CMOS settings, and, in the case of a laptop, to keep the battery charged. Hiberfile.sys is the file where the running state of the computer is saved, and therefore is only required for hibernation, not standby. |
#3
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Hiberfil.sys needed?
On 7/7/2018 6:25 PM, Dan wrote:
Hello. I have 16GB RAM in my desktop. Do I need this file Hiberfil.sys? I do not put my computer into standby. I turn it off by "powercfg /h off" in an Admin Command Prompt and I have only 8G RAM. No problem so far. That file is mainly used for fast startup and hibernation. -- @~@ Remain silent! Drink, Blink, Stretch! Live long and prosper!! / v \ Simplicity is Beauty! /( _ )\ May the Force and farces be with you! ^ ^ (x86_64 Ubuntu 9.10) Linux 2.6.39.3 不借貸! 不詐騙! 不*錢! 不援交! 不打交! 不打劫! 不自殺! 不求神! 請考慮綜援 (CSSA): http://www.swd.gov.hk/tc/index/site_...sub_addressesa |
#4
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Hiberfil.sys needed?
On Sat, 7 Jul 2018 20:26:24 +0800, "Mr. Man-wai Chang"
wrote: On 7/7/2018 6:25 PM, Dan wrote: Hello. I have 16GB RAM in my desktop. Do I need this file Hiberfil.sys? I do not put my computer into standby. I turn it off by "powercfg /h off" in an Admin Command Prompt and I have only 8G RAM. No problem so far. That file is mainly used for fast startup and hibernation. Cheers, I have a laptop with 8 GB ram and SSD. I will do this as will. Since SSD's have a limited write cycle. |
#5
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Hiberfil.sys needed?
On Sat, 07 Jul 2018 11:25:57 +0100, Dan wrote:
I have 16GB RAM in my desktop. Do I need this file Hiberfil.sys? I do not put my computer into standby. Do you mean hibernation? If you never hibernate, then you can delete it with the command powercfg -h off Source: https://www.raymond.cc/blog/is-it-sa...berfilsys-and- pagefilesys/ I do hibernate, fifty times or more for every once I actually shut down my laptop. The only problem I have with Hiberfil.sys is that it increases the size of my backups, so I just tell my backup program to ignore it, as it ignores Pagefile.sys. -- Stan Brown, Oak Road Systems, Tompkins County, New York, USA http://BrownMath.com/ http://OakRoadSystems.com/ Shikata ga nai... |
#6
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Hiberfil.sys needed?
"Dan" wrote
| I have 16GB RAM in my desktop. Do I need this file Hiberfil.sys? | | I do not put my computer into standby. | Java Jive explained the details and the difference between hibernation and standby. Since you don't seem to want/use hibernation, just check the Control Panel power settings to make sure you don't have it set for a hibernation option. I use standby quite a bit with my desktop. I never use hibernate. So I delete hiberfil.sys. When I use a laptop I don't normally use it unplugged, so I also don't need hibernation then. The only sensible situation for hibernate would be a laptop that you want to put on standby for a notable period of time and can't plug in. In that case, hibernate won't use power the way that standby would. But even then the usefulness is questionable. Hibernate shuts down the computer. So what's the point, really? It just allows you to not bother saving your DOC and closing MS Word before shutting down. I also put a swap file on D:\ of set size. That keeps it from growing. Then I set no swap on C. The normal situation has pagefile.sys on C drive and it can be quite large, even if you have a massive amount of RAM. It's a standard that's outdated, going back to the time when no one had a D drive and no one had enough RAM. |
#7
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Hiberfil.sys needed?
On 7/7/2018 8:26 PM, Mr. Man-wai Chang wrote:
I turn it off by "powercfg /h off" ... Someone corrected my mistake: it's "-h" not "/h". Sorry! -- @~@ Remain silent! Drink, Blink, Stretch! Live long and prosper!! / v \ Simplicity is Beauty! /( _ )\ May the Force and farces be with you! ^ ^ (x86_64 Ubuntu 9.10) Linux 2.6.39.3 不借貸! 不詐騙! 不*錢! 不援交! 不打交! 不打劫! 不自殺! 不求神! 請考慮綜援 (CSSA): http://www.swd.gov.hk/tc/index/site_...sub_addressesa |
#8
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Hiberfil.sys needed?
Mr. Man-wai Chang wrote:
On 7/7/2018 8:26 PM, Mr. Man-wai Chang wrote: I turn it off by "powercfg /h off" ... Someone corrected my mistake: it's "-h" not "/h". Sorry! Syntax varies with OS version. You can find both types of syntax in Google. Paul |
#9
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Hiberfil.sys needed?
Dan wrote:
I have 16GB RAM in my desktop. Do I need this file Hiberfil.sys? I do not put my computer into standby. Only used (created on shutdown) if you enabled Hibernate mode in Windows. Do you ever hibernate the OS? Hibernate is NOT a standby (low-power power-ON) mode. Hibernate is a power-OFF mode: memory gets copied into a file and the computer is powered down. On power up and OS boot, the file (hiberfil.sys) gets read back into memory to restart where you left off before. Takes time to write all of memory into a file, so shutdown takes longer, and also takes time to read the file into memory on Windows startup (although the assumption is that takes much less time then loading everything from scratch). |
#10
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Hiberfil.sys needed?
Dan wrote:
Hello. I have 16GB RAM in my desktop. Do I need this file Hiberfil.sys? I do not put my computer into standby. It is not normally needed on a desktop. At a command prompt, type: POWERCFG -H OFF The sys will be auto deleted. I also turned it off on the laptops due to shutdown taking significantly longer and startup somewhat longer than a normal cold boot. And Outlook needs to be shut down and restarted to reconnect to the VPN. It's faster for me to just cold boot and restart the programs. |
#11
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Hiberfil.sys needed?
Mayayana wrote:
[...] I use standby quite a bit with my desktop. I never use hibernate. So I delete hiberfil.sys. When I use a laptop I don't normally use it unplugged, so I also don't need hibernation then. The only sensible situation for hibernate would be a laptop that you want to put on standby for a notable period of time and can't plug in. In that case, hibernate won't use power the way that standby would. But even then the usefulness is questionable. Hibernate shuts down the computer. So what's the point, really? It just allows you to not bother saving your DOC and closing MS Word before shutting down. Hibernate does not shut down the computer. That's the whole point. See Java Jive's response as to what hibernate does and doesn't do. Hibernate is faster than Shut Down and a resume from hibernate is much, much faster than a power-on boot. I just hibernated and resumed my 12GB 8.1 laptop (with a normal HDD, no SSD) and it took about 25 seconds each way. My laptop is mostly on mains power, so I mainly use Sleep (8.1 says Sleep instead of Standby, at least mine does), but I use hibernate when it's not on power, because it's much faster than Shut Down / reboot. For a desktop, hibernate would mainly save energy consumption/costs. |
#12
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Hiberfil.sys needed?
"Frank Slootweg" wrote
| Hibernate does not shut down the computer. That's the whole point. See | Java Jive's response as to what hibernate does and doesn't do. ? He said the same I said: It stores the state of the system in a file and shuts down, to avoid using power to keep RAM charged, which standby does. But actually I've never used hibernate. Only standby. |
#13
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Hiberfil.sys needed?
Mayayana wrote:
"Frank Slootweg" wrote | Hibernate does not shut down the computer. That's the whole point. See | Java Jive's response as to what hibernate does and doesn't do. ? He said the same I said: It stores the state of the system in a file and shuts down, to avoid using power to keep RAM charged, which standby does. The term 'shut down' has a specific meaning in Windows. By doing a shut down, everything that was running at shut down time, including the OS, will have to be restarted at (re)boot. No such thing with hibernate. Hibernate does its thing and then only does a *power-off* at the end. But actually I've never used hibernate. Only standby. You mean 'sleep'! :-) Just kidding, 'standby' is fine by me [1]. [1] For example in (HP/8.1) Power Options, Hibernate is a subcategory of Sleep! Who needs terminology if we can have total chaos instead! :-) |
#14
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Hiberfil.sys needed?
Frank Slootweg wrote:
Mayayana wrote: "Frank Slootweg" wrote | Hibernate does not shut down the computer. That's the whole point. See | Java Jive's response as to what hibernate does and doesn't do. ? He said the same I said: It stores the state of the system in a file and shuts down, to avoid using power to keep RAM charged, which standby does. The term 'shut down' has a specific meaning in Windows. By doing a shut down, everything that was running at shut down time, including the OS, will have to be restarted at (re)boot. No such thing with hibernate. Hibernate does its thing and then only does a *power-off* at the end. But actually I've never used hibernate. Only standby. You mean 'sleep'! :-) Just kidding, 'standby' is fine by me [1]. [1] For example in (HP/8.1) Power Options, Hibernate is a subcategory of Sleep! Who needs terminology if we can have total chaos instead! :-) Sleep Stays in RAM, uses a watt or two to keep RAM contents refreshed. (My 8x8GB RAM machine needs 7.5W, my 4x2GB machine needs 5W, YMMV) Hybrid sleep Same as sleep, only the session information is also kept in the hiberfile. Uses a watt or two to keep RAM contents refreshed. Starts quickly (if the RAM contents are still around). On power loss, reverts to hiberfile, slow startup. Hibernate Session kept in hiberfile. RAM is not powered. Both stop and start are slow (function of %RAM used). Only "active" RAM areas are recorded. An idle desktop might need 350MB of writes to the hiberfile. Fast Start Kernel hibernation, followed by driver warm start on recovery. Uses hiberfile. Doesn't require power for RAM. Session and applications not recorded. Likely a Win8/Win10 feature - I don't think Win7 has it. Use "powercfg /h off" to defeat the hiberfile and easily achieve full shutdowns without resorting to tricks. Standby (S1) traditionally just removed sync signals from the VGA monitor cable, causing the monitor screen to blank. Much of the remaining hardware was left running. The fans are still spinning in Standby. With modern C states, and ACPI, similar savings can be achieved while still running in S0. Use Sleep (S3) if you expect to be away from the machine for a bit. Paul |
#15
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Hiberfil.sys needed?
Paul wrote:
[...] Hibernate Session kept in hiberfile. RAM is not powered. And most importantly - especially for a laptop - the *system* does not need to be powered. Both stop and start are slow (function of %RAM used). This needs qualification as to 'slow' compared to *what*? [...] |
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