On 12/08/2008 11:49 AM, Rashkae wrote:
> I'm trying, unsuccessfully,. to find a utility that will display the
> memory allocated, not including cache and buffers.
>
> The closes I could come is with the free command. I can add the -/+
> buffers/cache and Swap used column, which should be fairly close.
> However, those numbers will contain 'clean' pages that exist both in
> physical ram as well as used swap space.
>
Perhaps try the System Monitor applet?
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12-08-2008, 08:41 PM
Rashkae
Memory usage measurement
NoOp wrote:
> On 12/08/2008 11:49 AM, Rashkae wrote:
>> I'm trying, unsuccessfully,. to find a utility that will display the
>> memory allocated, not including cache and buffers.
>>
>> The closes I could come is with the free command. I can add the -/+
>> buffers/cache and Swap used column, which should be fairly close.
>> However, those numbers will contain 'clean' pages that exist both in
>> physical ram as well as used swap space.
>>
>
> Perhaps try the System Monitor applet?
>
>
Not really.. that's no better than the free command.
I guess what I'm looking from, roughly, is something like the Used
memory - Cache (from free) + Used Swap - Swapcashed (from /proc/meminfo)
I could get all that info from /proc/meminfo,, of course, but then you
have to subtract to find Used Memory and Used swap.
I find it interesting to comapre that with the Commited_AS value,, for
example, assuming I have the above formula right, my system now is
"using" 1.3 GB of memory, but applications have committed total of 1.78)
I guess I'll just have to write myself a little perl script to parse
meminfo for what I'm looking for.. should be fun.
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12-09-2008, 06:50 AM
Erik Christiansen
Memory usage measurement
On Mon, Dec 08, 2008 at 02:49:13PM -0500, Rashkae wrote:
> I'm trying, unsuccessfully,. to find a utility that will display the
> memory allocated, not including cache and buffers.
>
> The closes I could come is with the free command. I can add the -/+
> buffers/cache and Swap used column, which should be fairly close.
> However, those numbers will contain 'clean' pages that exist both in
> physical ram as well as used swap space.
A little awking might be needed for such specific requirements?
Here we have "Dirty" and "Writeback", at least. Can you deduce "clean"
from that? Is inactive "clean", or a subset thereof?
--
Habit is habit, and not to be flung out of the window by any man, but
coaxed down-stairs a step at a time.
-- Mark Twain, "Pudd'nhead Wilson's Calendar
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12-14-2008, 02:32 AM
"Cybe R. Wizard"
Memory usage measurement
Rashkae <rashkae@tigershaunt.com> said:
[...]
>
> I guess what I'm looking from, roughly, is something like the Used
> memory - Cache (from free) + Used Swap - Swapcashed
> (from /proc/meminfo)
>
> I could get all that info from /proc/meminfo,, of course, but then you
> have to subtract to find Used Memory and Used swap.
>
> I find it interesting to comapre that with the Commited_AS value,, for
> example, assuming I have the above formula right, my system now is
> "using" 1.3 GB of memory, but applications have committed total of
> 1.78)
>
> I guess I'll just have to write myself a little perl script to parse
> meminfo for what I'm looking for.. should be fun.
>
Would this information help you if presented in a side monitor?
-------------
Used and Free
The used and free memory here are calculated from the kernel reported
used and free by subtracting or adding the buffers and cache memory.
See the README and compare to the "-/+ buffers/cache:" line from the
free command. If you show three memory krells, the kernel "raw free" is
the space after the rightmost krell.
Chart Labels
Substitution variables for the format string for chart labels:
$M maximum chart value
$T total swap in blocks + swap out blocks
$i swap in blocks
$o swap out blocks
Panel Labels
Substitution variables for the format string for the Mem and Swap
panels (a MiB is a binary megabyte - 2^20):
For memory and swap:
$t total MiB
$u used MiB
$f free MiB
$U used %
$F free %
$l the panel label
For memory only:
$s shared MiB
$b buffered MiB
$c cached MiB
The free and used variables may have a 'r' qualifier for printing
raw free and raw used values. For example: $fr for raw free.
Substitution variables may be used in alert commands.
----------------
If so, it is the description of the memory meter part of GKrellM.
Cybe R. Wizard
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Nice computers don't go down.
Larry Niven, Steven Barnes
"The Barsoom Project"
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Memory usage measurement
