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vsoto
March 26th, 2009, 01:43
According to top(1):

Mem: 283M Active, 190M Inact, 531M Wired, 4312K Cache, 399M Buf, 2914M Free
Swap: 4096M Total, 4096M Free

Seems like a lot of RAM is just sitting there doing nothing.
This is a laptop running 7.2-PRERELEASE amd64 so sleep and suspend to RAM/DISK are not supported. In an computer that is on most of the time it seems like some data get cached: xorg starts faster the second time and so on so that would be a good use for the memory. But I have to turn off the laptop every time I move.

Is there a way to put that memory to good use?

v.
SirDice
March 26th, 2009, 09:22
Seems like a lot of RAM is just sitting there doing nothing.
This is a laptop running 7.2-PRERELEASE amd64 so sleep and suspend to RAM/DISK are not supported. In an computer that is on most of the time it seems like some data get cached: xorg starts faster the second time and so on so that would be a good use for the memory.
The remaining memory will be used for file caching.
vermaden
March 26th, 2009, 10:16
Is there a way to put that memory to good use?

You can use tmpmfs and varmfs in rc.conf to mount /tmp and /var in RAM.
ph0enix
March 26th, 2009, 14:21
n/m
vsoto
March 27th, 2009, 03:34
The remaining memory will be used for file caching.

I know, I have noticed that some programs/commands are faster after the first time they are run. The problem is that the computer is not on long enough for that to be useful: It's a laptop running amd64 so I can't suspend to disk or RAM and continue later; so every time I go from home to coffee shop I have to turn it off and lose what the system had cached.

v.
vsoto
March 27th, 2009, 03:35
You can use tmpmfs and varmfs in rc.conf to mount /tmp and /var in RAM.

I'll look into it.

Thanks,

v.
darcsis
March 27th, 2009, 12:37
kern.ipc.shm_use_phys=1

it seems this would comsume some RAM. but i'm not quite sure.
Djn
March 27th, 2009, 21:24
I think amd64 suspend/resume support just got committed to CURRENT, by the way - I got the impression it works quite well.
vermaden
March 27th, 2009, 21:50
I think amd64 suspend/resume support just got committed to CURRENT, by the way - I got the impression it works quite well.

On SMP systems as well?
oliverh
March 27th, 2009, 23:11
On SMP systems as well?

http://lists.freebsd.org/pipermail/freebsd-current/2009-March/004417.html
vsoto
March 29th, 2009, 01:34
I think amd64 suspend/resume support just got committed to CURRENT, by the way - I got the impression it works quite well.

Are there any plans to port it to STABLE?

v.