C655D-S5200: Resource Monitor says Percent Memory Used never exceeds 50%.
Planning to add memory to 3 GB installed. Resource Monitor says Percent Memory Used never exceeds 50%. Is this normal? If so, why? If not, what should I do?
If it's telling the truth, you don't need more physical RAM. We don't see anything else unusual in the measurements.
But that does seem suspicious. What happens to Hard Faults/sec as you increase the memory usage?
Can't hurt to read up on this. Maybe it will give you another idea on how to determine if there's something fishy in the measurement.
Here's an article on using Resource Monitor to measure memory from Tech Republic.
Investigate memory usage with Windows 7 Resource Monitor
And here's a blog by Ed Bott.
Windows 7 memory usage: What's the best way to measure?
Mark Russinovich (of Microsoft now) blogged a bit on how Windows 7 uses memory.
Pushing the Limits of Windows: Physical Memory
As Mark suggests, you might want to set up Performance Monitor (perfmon -sys) to graph available memory using the Available Bytes counter.
Please let us know what you learn.
-Jerry
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This question was solved.
View Solution.Hi Ralph,
Have you isolated the offending process using Task Manager?
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Jaco
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As I understand, you want to increase the size of the root partition (where you installed Solaris) which resides in c1t0d0s0. I think it can be done using Concatenations from Solaris Volume Manager (SVM).
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Hi
I have attached a plot for the discussion here..
I am monitoring the memory usage by my VI thru calling a window's dll to keep checking that (Many thanks to Matt).
I saw raising slopes and flat (wow! First time I catch this, that's what I am expecting)
I am thinking where could there be a reason for memory growing up!
What I did:-
1. Mostly use queues (all limited # of elements) for parameters delivery between loops and between subVIs
2. I close Obtained queue ref. every time I finish with it (only leaving a few keeping alive so they won't be killed)
3. For all arrays I initialized with a fixed size array constant and do all jobs with Replace subset, Index Array and that In-place block.
Above are measures I intended to use to save memory.
However for a few points I think there might cause a memory grows, and I wish that someone can share with me your experience or give me an answer...
1. Write to spread file:-- I keep using this to log data, events into harddisk, in my use I always append new logs/data to the existing file, however I keep doing it all the time throughout the run-time.
2. Running my program in LV.exe -- I havn't compiled it yet. However when I was taking the plot's data, my PC is left with no one using it.
3. There is a couple of external dlls running -- however it sounds to me from other's view point, external dll's resource doesn't count into Labview.exe. Since I am monitoring Labview's memory use, that couldn't be a source of the raising I see from this plot, right?
4. Waveform graphs -- I am not sure whether this can be a problem. Everytime I feed data into a waveform control, I initialized a constant array and then replace elements into it, I don't think my data source is casuing any problem.
Can someone comment on my above descriptions of my program?
Raymondvgbraymond wrote:
1. Write to spread file:-- I keep using this to log data, events into harddisk, in my use I always append new logs/data to the existing file, however I keep doing it all the time throughout the run-time.
Write to spreadsheet file is a high level VI that opens and closes the file with every call. I would recommend to open the file once at the start of the programs, then append using lowlevel functions. Close the file after the program is done.
Have you done any profiling to see which subVIs shows the bulk of the memory use?
You might also turn off debugging to see if it makes a difference. Don't open the front panel of subVIs (and avoid functions that force the front panel to be in memory) unless they need to show something important to the user.
It would really help if we could see some actual code. Can you strip it down to the essentials that still show the problem?
LabVIEW Champion . Do more with less code and in less time . -
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About OS X Memory Management and Usage
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Memory Management in Mac OS X
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So the questions are : Why the difference? And is this a bug?
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. : | : . : | : . tim -
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**Click the KUDOS thumb up on the left to say 'Thanks'**
Make it easier for other people to find solutions by marking a Reply 'Accept as Solution' if it solves your problem. -
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