memory discrepancy

Discussions related to using VirtualBox on Mac OS X hosts.
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loukingjr
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memory discrepancy

Post by loukingjr »

Not sure what all this means but, I gave one of my 32 Linux guests with a PAE kernel 16GBs of ram and once it starts it thinks it has 16GBs. However, looking at the Activity Monitor from the Mac, the guest is using less than 800MB. I thought a guest reserves whatever memory is assigned to it. It looks like it only uses what it needs up to 16GBs?

I'm confused this morning.
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socratis
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Re: memory discrepancy

Post by socratis »

Screenshots? Logs? Other info/clues?
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loukingjr
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Re: memory discrepancy

Post by loukingjr »

socratis wrote:Screenshots? Logs? Other info/clues?
seeing it does it with multiple guests I don't think any of those would be relevant. not to mention time consuming to post all of them for each guest.
OSX, Linux and Windows Hosts & Guests
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loukingjr
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Re: memory discrepancy

Post by loukingjr »

apparently it has something to do with Linux guests. I increased the memory of my two Windows guests and they reserve nearly all 16GB when running. i.e. 10GB more or less.
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mpack
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Re: memory discrepancy

Post by mpack »

Memory ballooning?
loukingjr
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Re: memory discrepancy

Post by loukingjr »

mpack wrote:Memory ballooning?
memory ballooning is supposedly not working on OSX hosts.
OSX, Linux and Windows Hosts & Guests
There are three groups of people. Those that can count and those that can't.
loukingjr
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Posts: 8851
Joined: 30. Apr 2009, 09:45
Primary OS: Mac OS X other
VBox Version: VirtualBox+Oracle ExtPack
Guest OSses: just about all that run

Re: memory discrepancy

Post by loukingjr »

maybe they mean not working well or sorta working or intermittant. don't know.

drag and drop is supposed to work with Linux guests but it varies depending on the number of cores and the particular Linux guest and sometimes not at all.
OSX, Linux and Windows Hosts & Guests
There are three groups of people. Those that can count and those that can't.
socratis
Site Moderator
Posts: 27329
Joined: 22. Oct 2010, 11:03
Primary OS: Mac OS X other
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Guest OSses: Win(*>98), Linux*, OSX>10.5
Location: Greece

Re: memory discrepancy

Post by socratis »

Verified with OSX 10.6.8
- Memory assigned to guest: 12288 MB (just shy of the warning for memory overcommitting)
top
PID   COMMAND      %CPU TIME     #TH   #WQ  #PORT #MREGS RPRVT  RSHRD  RSIZE  VPRVT  VSIZE  PGRP PPID STATE    UID
...
4279  VirtualBoxVM 3.3  00:34.99 32    1    315   903    1104M  81M    1150M  1219M  4007M  4279 4275 sleeping 502
...

Not even close. Hope I didn't waste everyone's bandwidth...
Do NOT send me Personal Messages (PMs) for troubleshooting, they are simply deleted.
Do NOT reply with the "QUOTE" button, please use the "POST REPLY", at the bottom of the form.
If you obfuscate any information requested, I will obfuscate my response. These are virtual UUIDs, not real ones.
loukingjr
Volunteer
Posts: 8851
Joined: 30. Apr 2009, 09:45
Primary OS: Mac OS X other
VBox Version: VirtualBox+Oracle ExtPack
Guest OSses: just about all that run

Re: memory discrepancy

Post by loukingjr »

socratis wrote:Hope I didn't waste everyone's bandwidth...
smh
OSX, Linux and Windows Hosts & Guests
There are three groups of people. Those that can count and those that can't.
mpack
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Posts: 39134
Joined: 4. Sep 2008, 17:09
Primary OS: MS Windows 10
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Guest OSses: Mostly XP

Re: memory discrepancy

Post by mpack »

loukingjr wrote:memory ballooning is supposedly not working on OSX hosts.
Hmm. Yes, the manual does say that.
loukingjr
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Joined: 30. Apr 2009, 09:45
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Re: memory discrepancy

Post by loukingjr »

mpack wrote:
loukingjr wrote:memory ballooning is supposedly not working on OSX hosts.
Hmm. Yes, the manual does say that.
Yes. I suspect they are working on it and until it works correctly they just say it doesn't work.
OSX, Linux and Windows Hosts & Guests
There are three groups of people. Those that can count and those that can't.
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