Xfce panel system monitor reading wrong RAM usage

A picture is worth a thousand words:
What's up with that ?
I just booted up the computer, freshly running system
EDIT: Oh, it seems to include cached memory in that display...but that's too much to be cached methinks
Last edited by moljac024 (2009-02-24 09:49:29)

William Boyd, Jr. wrote:
Welcome to Apple's discussion groups.
Thanks
I believe that the most significant RAM value in Activity Monitor as far as performance problems is concerned is "Page outs". If this value is no more than a few hundred MB and isn't increasing over time, then your Mac isn't running out of RAM.
I've just restarted and it is in a 2,5MB stable value. Also "Free" and "Active" values are now in normal values after 1 day of intesive use: 350 and 800 MB respectively.
As for solving your slow down problem, I'd keep Activity Monitor open to the CPU pane to see if there are jumps in CPU use when the problem occurs.
Nice. I've just opened the CPU Use mini-window and i'm also using the memory usage dock icon. Pretty cool to see CPU usage peaks.
Thanks so much for the help

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Are you using xfce4-power-manager in xfce4? I can see that it appears that you are using the xfce4 panel, but it is not clear that you are using the rest of it. If you are, isn't it started by the .desktop file? In those files you can specify the icon used, so you might be able to simply change it to something more common to most icon sets.
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Activity Monitor shows wrong disk usage

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Activity monitor says I have 1 -3% of System Memory free, yet CPU usage shows less than 10% total of all processes

Activity monitor says I have 1 -3% of System Memory free, yet CPU usage shows less than 10% total of all processes

I think you should review what you wrote. There is no question, hence, my reply. I can't tell by the AM listing what applications are using memory. You need to click on the Real Mem column once or twice to display in descending order.
Aside from what you see in AM, what exactly is your problem or perceived problem. You are very low on Free Mem at the moment the screen shot was taken. Those displays are not depicting your computer's instantaneous memory usage.
About OS X Memory Management and Usage
Using Activity Monitor to read System Memory & determine how much RAM is used
Memory Management in Mac OS X
Performance Guidelines- Memory Management in Mac OS X
A detailed look at memory usage in OS X
Memory Usage Performance Guidelines- About the Virtual Memory System
Understanding top output in the Terminal
The amount of available RAM for applications is the sum of Free RAM and Inactive RAM. This will change as applications are opened and closed or change from active to inactive status. The Swap figure represents an estimate of the total amount of swap space required for VM if used, but does not necessarily indicate the actual size of the existing swap file. If you are really in need of more RAM that would be indicated by how frequently the system uses VM. If you open the Terminal and run the top command at the prompt you will find information reported on Pageins () and Pageouts (). Pageouts () is the important figure. If the value in the parentheses is 0 (zero) then OS X is not making instantaneous use of VM which means you have adequate physical RAM for the system with the applications you have loaded. If the figure in parentheses is running positive and your hard drive is constantly being used (thrashing) then you need more physical RAM.
Adding RAM only makes it possible to run more programs concurrently. It doesn't speed up the computer nor make games run faster. What it can do is prevent the system from having to use disk-based VM when it runs out of RAM because you are trying to run too many applications concurrently or using applications that are extremely RAM dependent. It will improve the performance of applications that run mostly in RAM or when loading programs.

High RAM usage when system is 'idle' (EtreCheck)

Hey guys,
First timer here. Ok here's my question :
I recently bought a secondhand Macbook pro 15 inch. For me it's a huge upgrade coming from a 2009 13 inch Macbook pro. Because a friend of mine wants to buy my old one I was doing some diagnostics on the 13 inch, which has 4 GB of RAM, and found out it had a lot of inactive RAM usage and wired usage, almost 2 GB, due to a lot of launchdaemons etc which were hogging the RAM. I used terminal to kill these agents and deamons and now that system is running smooth again. Maybe it's wise to mention that the 13 inch runs on ML.
3 days ago I did a clean Yosemite install on the 15 inch, swapped the HDD for a SSD. And already the activity monitor shows a whopping 4,28 GB of RAM usage while I'm typing this with just safari open. I thought I could do the same trick as I did with my 13 inch but it didn't help, had some java deamons and helpers and deleted those. In terminal I looked up everything via launchctl list and there's nothing unusual going on as far as I can see. I had VirtualBox for one day but uninstalled it using their uninstaller. I have no clue what's eating all this RAM. Please help me out so I can be a proud owner of my second macbook for atleast 5 years to come. Thanks in advance.
EtreCheck version: 2.1.8 (121)
Report generated 15 februari 2015 08:45:30 CET
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    904 MB    Wired RAM
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    Feb 12, 2015, 09:53:18 AM    /Users/[redacted]/Library/Logs/DiagnosticReports/Live_2015-02-12-095318_[redact ed].crash

This machine has not run out of RAM.
Virtual Memory Information: ℹ️
    4.07 GB    Free RAM
    2.79 GB    Active RAM
    816 MB    Inactive RAM
    904 MB    Wired RAM
    1.25 GB    Page-ins
    0 B    Page-outs
The page outs indicate the OS has not recently swapped any memory to disk.
Apple made changes to 10.9 that are the same on 10.10. Memory will be used as much as possible. It is the fastest storage on the system, keeping it free is a waste of your time - data loads fastest from RAM.
This is a good explanation…
http://arstechnica.com/apple/2013/10/os-x-10-9/17/#compressed-memory
The system also frees 'cache' memory when another process has more need to use it. Eventually it will swap to disk (which is slow) so the OS also compresses memory before swapping is needed.
Please avoid killing launchd jobs, many will simply restart or relaunch again later. Eventually you may kill one that hangs the OS & corrupts the disk via a forced shutdown.
I do suspect you may see issues when RAM does get low, but there is no evidence of that here. The memory pressure graph will show red when swapping - every other colour is fine. Wait until you see red & then note the top memory users.
If you don't want java installed you need to find removal instructions & get it all off the system, simply stopping the update checks will leave Java in an old state - terrible for security.
Also do you know what 'Live' is? It crashed recently, if it keeps doing that it may be worth a look, however it may just be one if the things that was effects by the killing spree

New network (and much more) monitor for XFCE panel

A few years ago I wrote a tiny app to show a text network monitor in the XFCE panel, resembling the previous one I was familiarized with (in KDE?).
The past month I started fixing a bug and ended in a full rewrite, but keeping the original simplicity (at least in the panel bar) despite that now reports far more than the network activity.
The installation instructions are the same: download a single file (no dependencies), compile it, add a Generic Monitor Applet (XFCE) to the panel and configure it to load the new executable.
I have updated the wiki page, but the full instructions and code is now hosted at github: "Hacker's Monitor for XFCE". Yes, it has a new name also.
Here follows a screenshot with the mouse over the applet to open the tooltip (yes, I was intentionally doing a dd from /dev/sda into /dev/null ):
https://github.com/lightful/xfce-hkmon/ … /hkmon.png
-- mod edit: read the Forum Etiquette and only post thumbnails http://wiki.archlinux.org/index.php/For … s_and_Code [jwr] --
Last edited by cgarcia (2015-01-07 22:40:54)

Moving to Community Contributions...

Memory Usage: Heap space vs System Monitor

Hi guys
I'm trying to wrap my head around something which seems pretty complicated. We have an enterprise app making use of Jasper Reports. When a report is generated, the app's memory usage in the Linux (Ubuntu 8.10) System Monitor shoots up by around 20MB (the more data on the report, the higher that number). After the report is closed, memory usage doesn't decrease. This is resulting in performance issues, and memory usage given by the System Monitor doesn't match up with the results given by the NetBeans profiler. There is a huge difference between the values indicated by the System Monitor, and the heap space given by the profiler. I've done some fairly detailed checking using the profiler, and according to that, there are 0 instances of our report generating classes in memory after closing a generated report. I've read a bunch of articles on the net, but I'm still stumped. My best guess is that something weird is happening somewhere in the Jasper code, but I can't really think of a way to confirm that. Does anyone have any idea what could be causing this and how to prevent it? Any help will be much appreciated; thanks.
P.S. I've posted on the Jasper forums are well, but to no avail. [http://jasperforge.org/plugins/espforum/view.php?group_id=102&forumid=103&topicid=65335]
Edit: We're using Java 6 (we've recreated the issue on a few release of Java 6), and Jasper Reports 3.0.1. (Just in case that is important)

One thing about your test is that using Xms110m will cause the JVM to NEVER give back any memory, because it won't ever go below 110M. I altered your test a bit:
import java.util.LinkedList;
public class MemTest {
   private static LinkedList<byte[]> mem = new LinkedList<byte[]>();
   public static void main(String[] args) {
        try {
            System.out.println("Initial:");
            print();
            useMem();
            System.out.println("Allocated:");
            print();
            clearMem();
            System.out.println("Deallocated:");
            print();
            for (;;) {
               Thread.sleep(10000);
               System.out.println("After 10 seconds: ");
               print();
        } catch (Exception ex) {
            ex.printStackTrace();
   private static void useMem() {
      for (;;) {
         try {
            mem.add(new byte[1024*1024]);
         } catch (OutOfMemoryError e) {
            //free up a few MB to make sure we don't get an OOME while trying to print, etc
            mem.removeFirst();
            mem.removeFirst();
            mem.removeFirst();
            break;
   private static void clearMem() {
      mem = null;
      System.gc();
      System.gc();
      System.gc();
   private static void print() {
      long free = Runtime.getRuntime().freeMemory();
      long total = Runtime.getRuntime().totalMemory();
      double freeFraction = (((double)free) / (total)) * 100;
      System.out.printf("\tAvailable: %d\tTotal: %d\tFree: %4.2f%%%n", free, total,
            freeFraction);
}When I ran it with
-Xms16m -Xmx1024m -XX:MinHeapFreeRatio=20 -XX:MaxHeapFreeRatio=30I got these results:
Initial:
     Available: 16518016     Total: 16711680     Free: 98.84%
Allocated:
     Available: 2070952     Total: 1065484288     Free: 0.19%
Deallocated:
     Available: 582957376     Total: 583073792     Free: 99.98%
After 10 seconds:
     Available: 582953224     Total: 583073792     Free: 99.98%As you can see, the JVM did return about half of the memory back. ProcExp shows ~592MB used, and peaked ~1000MB. But right now it's still running, and still holding at 583MB.
I've read bug reports like this, but honestly have no idea what the people at Sun are talking about. I don't see the footprint being reduced. I don't know, maybe if I wait a couple of days...

Setup system monitoring wrong text

Dear all,
After implementing Basis patch SAPKB70011 togather with SAPKITL420, Solution Manager system displays wrong text for Alerts in SOLUTION_MANAGER transaction -> Solution Monitoring-> System monitoring -> Operation setup in Setup system monitoring.
expl: for Setup Monitoring for SAP System... all rows shows the same Spool wait time
for Errors / Administrating of ... all rows shows the same Abap error in update
and every time this text is changed when I execute Setup system monitoring.
Should I implement SAPKITL421, SAPKITL422, and SAPKITL423 and are these patches connected with SAPKB70012, SAPKB70013, .. ? Is it necesary when implementing SAPKITL421 to be togather with SAPKB70012 and equivalent, because when I tried to implement SAPKB70011 alone it shows that there is a conflict with the add-on SAPKITL420 and muste be also implemented.
Thank you in advance.
Best regards,
Ruzica

Hello,
Does anyone knows sometinhg about the connection between SAPKITL- and basis patches SAPKB700?
If I need to implement SAPKITL--- patches should I also implement Basis patches?
Regards,
Ruzica

[SOLVED] How to see real Linux Ram usage ? (diferent values)

Hi everyone,
I am using Linux (Ubuntu at start and now Arch Linux) since 2004. I never had problems to understand it but now I have a problem that I cannot understand.
I have 2 computers (one is mine Asus 1215N and one is from my girlfriend Asus 1005HA), the first one has Arch Linux with Gnome3, and the seconde one has Arch Linux with Xfce4.
When I check the ram I get this (on my Asus 1215N):
(Terminal 'free') :
Total - 2055584
Used - 497792
Buffers/Cache Used - 164288
(Gnome System Monitor)
162,4 Mib (8,1%) de 2,0Gb
Conky
Ram Usage 488Mib/1.96Gib - 24%
So, apparently Gnome System Monitor only show me the Buffers/Cache Used memory (isn't that wrong ?) and the other two show me the "real" Ram usage (~488Mb)
Now on the seconde laptop conky show me the Buffers/Cache Used memory (when i look at it I see for example 120Mib but when I look at 'free' he says to me that the used memory is 500Mib.
So right now I don't really undestand who's wrong and who's right... did my Gnome3 really use 400mb at startup ? Did the xfce of my girlfriend really uses ~70-120mb at startup ?
(PS: we have the same conkyrc file.
Thanks in advance
Last edited by aliasbody (2011-07-08 10:00:33)

aliasbody wrote:
Thanks for your help. But if the Buffers/Cache free is the real Free ram as I understand, then Free Memory is the allocated for software (but free)... That seem's good, but I have a question, I have made a teste, when I tried to open a lot of Chromium tabs (Chromium is a good example as it uses a LOT of ram..)
Then the Buffers/Cache Free was at 1200Mib / 2000Mib (At free -m)
and Free Memory was at 19500 Mib / 2000Mib (At free -m)
And then the system starts using swap...
So if the Buffers are the really free ram and the Free Memory the all allocated memory and free why doesn't he cleans the allocated/cache before creating a new and starting using the swap ?
You seem to have the terms mixed up. Used memory is the cached memory and the memory allocated for applications grouped together. +/- buffers/cache is only the memory allocated for applications (It basically means used memory - buffers and cache).
As to why it starts swapping, I have no idea. It shouldn't, unless it's really out of RAM.
aliasbody wrote:Ps : And why did I got 2 diferent values from 2 pc's with the same conky configuration ? (since the first laptop show Free Ram and the second onde show Buffers/Cache)
That's very strange too. Are you absolutely sure that the configs are the same? Sounds like yours is missing the no_buffers option.

High kernel_task RAM Usage in Yosemite 10.10.1

Hello All,
No matter what I'm running, I always have high RAM usage with kernel_task. I've looked around the other threads and never found a definitive solution. I wouldn't call it crippling to my system but I would like to resolve the issue. Below is a screenshot of my activity monitor, and my Etrecheck run. Please let me know anything I can do to reduce the RAM usage of this process.
Problem description:
High kernel_task RAM Usage (800MB - 1.5GB)
EtreCheck version: 2.1.5 (108)
Report generated December 18, 2014 at 10:49:34 PM EST
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Hardware Information: ℹ️
MacBook Pro (15-inch, Late 2011) (Verified)
MacBook Pro - model: MacBookPro8,2
1 2.2 GHz Intel Core i7 CPU: 4-core
16 GB RAM Upgradeable
BANK 0/DIMM0
8 GB DDR3 1333 MHz ok
BANK 1/DIMM0
8 GB DDR3 1333 MHz ok
Bluetooth: Old - Handoff/Airdrop2 not supported
Wireless: en1: 802.11 a/b/g/n
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Intel HD Graphics 3000 - VRAM: 512 MB
Color LCD 1440 x 900
AMD Radeon HD 6750M - VRAM: 512 MB
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Auto backup: YES
Volumes being backed up:
SSD: Disk size: 119.69 GB Disk used: 58.59 GB
Destinations:
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Total size: 1.00 TB
Total number of backups: 44
Oldest backup: 2013-12-25 21:46:07 +0000
Last backup: 2014-12-16 21:41:48 +0000
Size of backup disk: Excellent
Backup size 1.00 TB > (Disk size 119.69 GB X 3)
Top Processes by CPU: ℹ️
      12% Google Chrome Canary
      1% WindowServer
      0% fontd
      0% hidd
      0% GoogleTalkPlugin
Top Processes by Memory: ℹ️
275 MB Google Chrome Canary
241 MB iTunes
172 MB mds_stores
155 MB Finder
134 MB Google Chrome Helper
Virtual Memory Information: ℹ️
10.95 GB Free RAM
3.59 GB Active RAM
777 MB Inactive RAM
1.85 GB Wired RAM
2.81 GB Page-ins
0 B Page-outs
Diagnostics Information: ℹ️
Dec 18, 2014, 10:13:38 PM Self test - passed
Dec 18, 2014, 10:05:52 PM /Library/Logs/DiagnosticReports/backupd_2014-12-18-220552_[redacted].cpu_resour ce.diag [Details]

The kernel_task memory usage is normal.

OSX Lion ram usage

Well, i've got my 13' Macbook Air today (4gb ram), and love it.
The only thing that bothers me is the extremely high ram usage of Lion, when i turn the Macbook on it jumps to about 1.3gb ram usage which i find really much considering my PC running Windows 7 uses less.
After some casual usage it even jumps up to about 2 gb ram usage.
Is this normal? how are the other Air's with only 2gb of ram handling this? there can't be much left there, besides just running the operating system.
i am new to Mac's so am i doing something wrong?

Hi all,
After last Lion update a i seem to encounter a very strange situation regarding ram usage.
I have an early 13' mbp core i5 with 8gb of ram.
After upgrading to lion 10.7.1 i have less than 500mb available after just a few hours since i turn it on.
I must mention that the only running apps are: safari, mail, app store, ichat, ms excell and itunes.
Upon quitting excell, itunes, appstore and restarting mail and safari i still only get 1,5gb of free ram.
My suspicion is that there is another ram leak somewhere, or else i can't explain why my computer user 128mb of swap with 8gb of ram installed.

System monitor counter

I'm trying to use system monitor activeX in order to control memory usage and CPU usage of my PC.
All activeX properties work fine except the most useful: counter.
I've attached the screen shot of my VI.
P.S. I think counter property is used to read wich counter to read?!
Thank you,
Paolo.

The input is the ActiveX container on the front panel. Attached is the actual VI (LV 8.2). I know it works in XP, but it doesn't work in Windows 7. At least Windows 7 64-bit. Not sure about Windows 7 32-bit.
The syntax for the pathname is \\Computer\PerfObject(ParentInstance/ObjectInstance#InstanceIndex)\Counter. In my example "PerfObject" is "Process(*)" to show all processes, and "Counter" is the name of the counter, which is "% Processor Time". You can get the various performance objects from this page: http://technet.microsoft.com/en-us/library/cc783073%28WS.10%29.aspx. Once you select one of the performance objects you want then the right-hand pane will list the available counter names. As you'll note for the Memory object, there's lots of memory counters.
Attachments:
System Monitor.vi ‏9 KB

My mac become so slow i can't use any app. All the time there is sound of hard drive but no swapping is reported by system monitor.

Hi Folks,
recently my Mac after latest upgrade of Maverics 10.9.2 degraded performance dramatically to the point that when I switch from one app to another i should wait 30-40 seconds to get the response back from the System. The Hard drive is in use each time I click a mouse button. Sounds like an excessive hard drive usage usually caused by swapping. But System monitor shows Free memory ) Swapping and plenty of Idle CPU.
I tried to find the Process that might over uses the disk but all appear to be Ok. i couldn't spot any process that would over use the IO.
IO looks normal from System Monitor.
I checked the Apple Support whenever it is a defected hard disk issue but according to serial this Mac is not under disk replacement program.
Any tips on what should I do to find the root cause?
Mac specifications:
27-inch Mid 2010
MEMORY 4GB 1333 MHZ DDR3
Software OS X 10.9.2 (13C64)
ATI Radeon HD 5750 1024 MB graphics
Intel 5 Series Chipset:
Vendor:          Intel
Product:          5 Series Chipset
Link Speed:          3 Gigabit
Negotiated Link Speed:          3 Gigabit
Physical Interconnect:          SATA
Description:          AHCI Version 1.30 Supported
ST31000528AS:
Capacity:          1 TB (1,000,204,886,016 bytes)
Model:          ST31000528AS
Revision:          AP25
Serial Number:                      9VP87BKN
Native Command Queuing:          Yes
Queue Depth:          32
Removable Media:          No
Detachable Drive:          No
BSD Name:          disk0
Rotational Rate:          7200
Medium Type:          Rotational
Partition Map Type:          GPT (GUID Partition Table)
S.M.A.R.T. status:          Verified
Thanks in advance
Emile

I have plenty of disk space 350 GB free.
I don't run excessive number of apps as you can see in top I have plenty of free Physical RAm plenty of idle CPU and IO is Ok too Swap is not in use means there is no lack of any resources
Even I f I quit all applications and use just safari the problem exists.
Processes: 174 total, 2 running, 6 stuck, 166 sleeping, 813 threads                                                11:35:05
Load Avg: 0.79, 0.78, 0.46 CPU usage: 0.47% user, 1.42% sys, 98.10% idle
SharedLibs: 134M resident, 0B data, 21M linkedit. MemRegions: 23450 total, 1500M resident, 121M private, 411M shared.
PhysMem: 3342M used (539M wired), 747M unused. VM: 418G vsize, 1310M framework vsize, 0(0) swapins, 0(0) swapouts.
Networks: packets: 25114/24M in, 16805/2740K out. Disks: 67293/2231M read, 15086/343M written.
I don't run any MAc keeper like apps nor antiviruses . I don't trust them. I f I need to clean something I will do it myself
Happens in switch between all apps even between the tabs in safari
The only symptom I have so far is noisy hard disk
each time i switch apps or windows I hear hard disk doing something.
Makes me think it might be hard disk problem but fsck doesn't show any issue
no bad secktors etc.
According to all diagnostics everything is Ok
That's kind of worries me not to be able to find the bottleneck having more than 20 years experience with UNIX

[XFCE4] ram usage problem

when i using xubuntu with xfce ram usage was ~120-160 with only pidgin and xchat
but on arch with xfce ram using just on start up ~160 and it with out any apps..
what the problem?

2b9anders
im using htop
im install xubuntu to comare them.xubuntu show me ~220mb ram WTF???
and I compare htop logs of them
in xubuntu:
panel plugins(like language layouts,cpu load...) using about 10mb each.
X using about ~80-100mb
in arch:
p.p. using about 20mb each
X using about 40-60mb of ram.
when i will be at home i'll paste screens of htop on xubuntu and arch
P.S. sry for my english ^^

Xfce panel system monitor reading wrong RAM usage

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