Question on memory usage

Dear Spry-Team,
I have a question on memory usage. When I run any Spry sample
(For Example :
spry_p1_5_051707\samples\data_region\PagingSample.html). Loading
took quite some time and in the mean time I looked at my Task
Manager for the RAM usage of Internet Explorer, this grew with
dozens of megabytes and after applying a few non-destructive
filters, the memory usage increased almost exponentially.
Can you provide us with some comments on memory usage by Spry
Thanks!

bump

Similar Messages

Some questions about the limit of memory usage of Adobe flash player in different OS & Web Browser

Hi Adobe experts,
I'm from HP, and now using Adobe flash player making some products about massive data displaying.
For my target, I need to show more than 200 K rows in client web browser, using AdvancedDataGrid.
And that may needs more than 200M to cache the data in Web browser memory space.
So, my questions are:
Does there any memory usage limit in flash player?
Say, if we have 4G bytes of physical memory in machine, in Windows, how much can I use in flash player?
Also, if we have 4G bytes of physical memory in Linux, how much can I use in flash player?
Does it depends on the Web Browser?
Say, is there any difference between different web browsers?
If the limit exists, can we control the limit?
Say, can we define some parameters in the tag in web page to expand the limitation?
Or, can we try to control this limitation by the Flash player management which exists in the Windows Control Panel?
Best Regards
Huang Haixu
+86 18616735091
[email protected]<mailto:[email protected]>

1. Yes. The Toolkit for CreateJS is an extra downloadable extension for Flash CS6. It will publish html and js files that will provide the animation instead of the swf that you would normally publish. The success or failure of the resulting javascript version of your animation is the result of working within the constraints of the toolkit. You are pretty much constrained to using the timeline in Flash for your animations. If you work only in Actionscript, then the output will be very disappointing.
2. Edge outputs javascript, css, and html to give you an animation. The user interface allows you to design within the constraints of what Edge can do. You can preview and adjust and tweek your animation as you work. Edge is an html5 tool. It can create html5 animation. It is not a replacement for Flash. It is something that you can use instead of Flash to embed animation in html.
The problems and benefits of each are unique. Neither is a good substitute to learning javascript, css and html5. If you don't understand the code that is created from each of these tools, you can easily end up with huge, bloated, files that perform poorly. I'm very biased toward actually knowing what is going on. If I need to edit something, I want to be able to go into the code and make a change, not add an additional chunk of code to work around what was there. I don't use the timeline at all, and so nothing that I have will publish using CreateJS. Well, it will publish, but nothing happens because there is nothing on the timeline to translate.
You can download a trial of Flash CS6 and try the Toolkit for yourself. Edge is still in free preview, you can get a copy at http://labs.adobe.com and try it to see how it works.
Also, if you're not using the Greensock Animation Platform with Flash, have a look at that. It has recently been extended to provide Javascript analogues for most of the Libraries. http://www.greensock.com/

System memory usage question

I'm confused by the system memory usage as seen with the activity monitor. This is my first mac so i'm used to using windows. I see there is 5 categories: Wired, Active, inactive, used and free. Is inactive and free the same thing? I'm just trying to gauge how much ram I use and if it's worth it to upgrade to 1Gb from 512. Thanks.
13.3" White Macbook (2.0 GHz, 512RAM) Mac OS X (10.4.6)

Wired memory
This information can't be cached to disk, so it must stay in RAM. The amount depends on what applications you are using.
Active memory
This information is currently in RAM and actively being used.
Inactive memory
This information is no longer being used and has been cached to disk, but it will remain in RAM until another application needs the space. Leaving this information in RAM is to your advantage if you (or a client of your computer) come back to it later.
Free memory
This memory is not being used.
http://docs.info.apple.com/article.html?artnum=107918
and i'd say that more memory is always useful in OS X

Problem with scanning and memory usage

I'm running PS CS3 on Vista Home Premium, 1.86Ghz Intel core 2 processor, and 4GB RAM.
I realise Vista only sees 3.3GB of this RAM, and I know Vista uses about 1GB all the time.
Question:
While running PS, and only PS, with no files open, I have 2GB of RAM, why will PS not let me scan a file that it says will take up 300Mb?
200Mb is about the limit that it will let me scan, but even then, the actual end product ends up being less than 100Mb. (around 70mb in most cases)I'm using a Dell AIO A920, latest drivers etc, and PS is set to use all avaliable RAM.
Not only will it not let me scan, once a file I've opened has used up "x" amount of RAM, even if I then close that file, "x" amount of RAM will STILL be unavaliable. This means if I scan something, I have to save it, close PS, then open it again before I can scan anything else.
Surely this isn't normal. Or am I being stupid and missing something obvious?
I've also monitored the memory usage during scanning using task manager and various other things, it hardly goes up at all, then shoots up to 70-80% once the 70ishMb file is loaded. Something is up because if that were true, I'd actually only have 1Gb of RAM, and running Vista would be nearly impossible.
It's not a Vista thing either as I had this problem when I had XP. In fact it was worse then, I could hardly scan anything, had to be very low resolution.
Thanks in advance for any help

55%, it's still 1.6Gb....there shouldn't be a problem scanning something that it says will take up 300Mb, then actually only takes up 70Mb.
And not wrong, it obviously isn't releasing the memory when other applications need it because it doesn't, I have to close PS before it will release it. Yes, it probably is supposed to release it, but it isn't.
Thank you for your answer (even if it did appear to me to be a bit rude/shouty, perhaps something more polite than "Wrong!" next time) but I'm sitting at my computer, and I can see what is using how much memory and when, you can't.

Get CPU and memory usage

Hi!
I would like to know if there is any way of getting system CPU and memory usage using Java code.

I want to get the system CPU and memory usage using the performance monitor dll, the perfctrs.dll, but access this data using Java language.Then you should create wrapper dll between your java code and perfctrs.dll and convert data from format of dll to format of your java code.
So, that is next question - how to create wrapper dll, how to deal with or how perfctrs.dll works?

Tracking Memory usage on iOS using the Stats class

I've been checking memory usage on an app I'm developing for iOS using the Stats class https://github.com/mrdoob/Hi-ReS-Stats ( http://help.adobe.com/en_US/as3/mobile/WS4bebcd66a74275c3-315cd077124319488fd-7fff.html#WS 948100b6829bd5a61637f0a412623fd0543-8000).
I added the Stats class to my project and redeployed and, yikes, memory usage reported in Stats creeps up (pretty slowly) even when there's nothing happening in the app (just showing a loaded bitmap).
To try and track down the issue I created a project with a test class that extends Sprite with just this single call in the constructor :-
addChild( new Stats() );
I deployed it to the device to check that it didn't gobble any memory.
But I was Suprised to watch the memory usage creep up and up (to approx 5) before some garbage collection kicked in and takes memory back down. I left it running and then it crept up again to over 7.5 this time before being kicked back down to just below 3.
So 2 related questions that I'd appreciate any feedback/observations/thoughts on :-
1 - Is this normal (i.e. memory creeping up when there's nothing other than Stats in the project) ?
2 - What is the best way to monitor memory usage within an app ? Is Stats good enough - is Stats itself causing the memory usage ?
All the best guys !

Also see thread (http://forums.adobe.com/message/4280020#4280020)
My conclusions are :-
- If you run an app and leave it idle, memory usage gradually creeps up (presumably as memory is being used to perform calcs/refresh the display etc)
- Periodically the garbage collection kicks in and memory is brought back down
- This cycle could be in excess of 5 mins
Run with your real app and memory will increase and be released much more rapidly/regularly.
- It's probably worth performing initial checks by running on your desktop to iron out any initial problems

Memory Usage And Hard Drive Activity Increase After Latest Upgrade

I have upgraded to Firefox 3.6.15 and latest Adobe Flash Player. Then i noticed that plugin-container started to take a lot of memory as much as Firefox itself totaling around 600Mb. Then i see hard drive activity intermittently slowing down my laptop and making it unresponsive for a short period of time. I have 50 tabs open. I have disabled Flash and since then plugin-container takes very little memory and i don't see consistent hard drive activity.
I need Flash and i don't want to disable it. Is there a solution to this?

I am seeking solutions for same problem. When playing simple online games such as solitaire my memory usage for the plug in container is 300-600 mb while FireFox may only be 80-120 (with several windows or tabs open of mostly text pages). If I disable Adobe add-ons memory usage is greatly reduced. If I understood correctly it is possible to disable the plugin container and run adobe via the old method and another user thought that would solve the problem. I do not understand how it would make a difference but if you havent found a solution you may want to try it. See these 2 threads in the Mozilla forum:
A question and brief explanation and how to disable plugin container in config
I've previously had problems with Adobe crashing Firefox . At least now with Adobe being in the plugin container Firefox does not crash along with it.
I have another issue - I can sometimes still hear the music from a game after I have exited the game and closed the window. I would like to know how to release the resources used by Adobe - kind of like FireFox's RamBack.
Well, good luck to you (and me!)

High disk usage/high memory usage.

i keep getting high memory usage and high disk usage in ps cs6.
its slow when i open a file. how can i solve this problem.
thank you.
philip.

Not to put too fine a point on it, but more than what? More RAM is almost always better, but you haven't answered most of the questions posed here. The answer might be different if you have 2 GB of RAM or 32 GB of RAM already. A 9 megapixel document could get rather large with a lot of layers, but again you've neglected to give any hard info about its size.
Regarding your video card, that's a bit of a judgment call you need to make. For Photoshop CS6 I currently advise people to try to get a video card that gets a score of 1000 or better on this benchmark: http://www.videocardbenchmark.net/high_end_gpus.html
Video card speed will matter when you're editing those 3D components and video card VRAM will also matter, but possibly even more importantly your GeForce 320 is a bit old, and nVidia may just not be doing their best driver work for it any more.
Everything in general will run more smoothly with a powerful modern video card. I like to recommend a VisionTek ATI Radeon HD 7750 - or if the computer power supply and your budget allow, the even more powerful 7850. VisionTek does a very good job with their hardware, IMO, and it comes with a lifetime guarantee.
Keep in mind that if you switch from nVidia to ATI or vice versa, you should carefully sweep your system to ensure all files from the old card are removed, then visit the web site of the new card's maker and download/install their latest display driver release.
Best of luck.
-Noel

Memory leaks- high memory usage svchost.exe

hello!
im having a kind of a similar problem. Im using a Q6600 with 4Gb of RAM running on Windows 7 x64. My physical memory usage history is 1.75GB idle but my CPU usage looks good ~ 0%.
In Windows Task Manager when i arranged the memory column, the process with the highest memory usge is svchost.exe with 116,572K. And i have 14 svchost.exe in my computer! I opened process exporer and check the legitimate of all those svchost.exe
and they are all legit. When i look at the properties of the highest svchost.exe in process explorer, the services which is running under it is as follows
AudioEndPointBuilder c:\Windows\System32\Audiosrv.dll
CscService c:\Windows\System32\cscsvc.dll
hidserv c:\Windows\System32\hidserv.dll
Netman c:\Windows\System32\netman.dll
PcaSvc c:\Windows\System32\pcasvc.dll
SysMain c:\Windows\System32\sysmail.dll
TrkWks c:\Windows\System32\trkwks.dll
UxSms c:\Windows\System32\uxsms.dll
wudfsvc c:\Windows\System32\WUDFSvc.dll
All are legit DLLS.
Is it normal to have 14 svchost.exe running at the same time(system, local service, network service in Task Manager)
and how can i reduce the memory usage of the svchost.exe?

Hi,
There can be multiple instances of Svchost.exe running at the same time. Each Svchost.exe session can contain a grouping of services, so that separate services can
be run depending on how and where Svchost.exe is started.
If you would like to reduce the usage of this service, I could share the following article with you:
Getting Started with SVCHOST.EXE Troubleshooting
PRF: High CPU (SVCHOST.EXE)
Hope it helps.
Alex Zhao
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How can I fix a drastic and sudden increase in memory usage?

Before I start, I've already been having slight issues since the middle of last year, but I thought nothing of it. Firefox starting up using a good chunk of memory was normal, and I could run it alongside my other programs just fine. However, about 3 or 4 days ago, Firefox has started to spike in memory usage, to the point where it slows my entire computer down, will not load pages, and it's generally a mess. I always have to force close it, too, because whenever I close it conventionally, it's still open in the background. I've been having the background issue for a few months, but it's never been a large problem until the last few days. I had thought, at first, that it was the result of some programs that got installed as part of another installer. I had no issue with the installer, considering it came from a trusted forum for game design on an official topic, from a veteran member. However, it installed multiple toolbars and multiple programs. I went through all of them, uninstalled them, cleared my registry, everything was gone. However, this memory problem reared its ugly head, later. I uninstalled, reinstalled. Didn't work. I tried to reset firefox, but it stayed open in the background, and I could not reset it. I disabled my addons (ones I've been using for over a year, now), nothing. I tried to open Firefox with all addons disabled, but it stayed open in the background and refused to re-open properly. I'm actually on another browser right now because Firefox is no longer working for much of anything... I also put a couple of attachments up to show the increase in question. It starts at around 270,000 K (though the screenshot shows around 312,000), then after about 4 or 5 minutes on my homepage, shoots up to well over 1,000,000 and it basically stops functioning. If anyone has any additional steps they think I could take, I would appreciate it.

'''[https://support.mozilla.org/en-US/kb/troubleshoot-firefox-issues-using-safe-mode Start Firefox in Safe Mode]''' {web link}
While you are in safe mode;
Type '''about:preferences#advanced'''<Enter> in the address bar.
Under '''Advanced,''' Select '''General.'''
Look for and turn off '''Use Hardware Acceleration'''.
Poke around safe web sites. Are there any problems?
'''[https://support.mozilla.org/en-US/kb/firefox-uses-too-much-memory-ram Firefox uses too much memory (RAM) - How to fix]'''
This article describes how to make Firefox use less memory to make it run faster and prevent crashes.

How to get less memory usage and cpu usage in an old pc with arch?

hi, i installed archlinux sucessfully after some problems.
but the system use a lot of memory (free said me 184mb) only with irssi, finch, mp3blaster and midori opened and is "slower" than when i used slitaz linux in it, why?
well, the things that i installed in arch are:
xorg + xf86-video-intel
jwm
irssi, finch, mp3blaster, htop.
midori, opera, elinks, links-g, epiphany.
geany, leafpad, go-openoffice, djview4, gnumeric, epdfview
isomaster, inkscape, gpicview, cdrkit, mtpaint.
pcmanfm, emelfm2, hal.
octave, mathematica5, R, wxmaxima,gnuplot.
nrg2iso, lxsplit, dclock.
here is a screenshot:
the pc have this skills:
800mhz celeron 370
MB gygabite gaw-mm7
192mb ram pc100
30 GB HD ide 5400 rpm
some code now:
lshw -businfo
WARNING: you should run this program as super-user.
Bus info Device Class Description
=================================================
system Computer
bus Motherboard
memory 183MiB System memory
cpu@0 processor Celeron (Coppermine)
memory 32KiB L1 cache
memory 128KiB L2 cache
pci@0000:00:00.0 bridge 82810 GMCH (Graphics Memory Controller Hub)
pci@0000:00:01.0 display 82810 (CGC) Chipset Graphics Controller
pci@0000:00:1e.0 bridge 82801AA PCI Bridge
pci@0000:01:03.0 eth0 network IC Plus IP100A Integrated 10/100 Ethernet MAC + PHY
pci@0000:00:1f.0 bridge 82801AA ISA Bridge (LPC)
pci@0000:00:1f.1 storage 82801AA IDE Controller
pci@0000:00:1f.2 bus 82801AA USB Controller
pci@0000:00:1f.3 bus 82801AA SMBus Controller
pci@0000:00:1f.5 multimedia 82801AA AC'97 Audio Controller
lspci -v
00:00.0 Host bridge: Intel Corporation 82810 GMCH (Graphics Memory Controller Hub) (rev 03)
Subsystem: Intel Corporation 82810 GMCH (Graphics Memory Controller Hub)
Flags: bus master, fast devsel, latency 0
Kernel driver in use: agpgart-intel
Kernel modules: intel-agp
00:01.0 VGA compatible controller: Intel Corporation 82810 (CGC) Chipset Graphics Controller (rev 03) (prog-if 00 [VGA controller])
Subsystem: Giga-byte Technology Device 0200
Flags: bus master, 66MHz, medium devsel, latency 0, IRQ 11
Memory at e0000000 (32-bit, prefetchable) [size=64M]
Memory at ee000000 (32-bit, non-prefetchable) [size=512K]
Expansion ROM at <unassigned> [disabled]
Capabilities: <access denied>
00:1e.0 PCI bridge: Intel Corporation 82801AA PCI Bridge (rev 02) (prog-if 00 [Normal decode])
Flags: bus master, fast devsel, latency 0
Bus: primary=00, secondary=01, subordinate=01, sec-latency=64
I/O behind bridge: 0000c000-0000cfff
Memory behind bridge: e7e00000-ebefffff
Prefetchable memory behind bridge: dfc00000-dfcfffff
Kernel modules: shpchp
00:1f.0 ISA bridge: Intel Corporation 82801AA ISA Bridge (LPC) (rev 02)
Flags: bus master, medium devsel, latency 0
Kernel modules: iTCO_wdt, intel-rng
00:1f.1 IDE interface: Intel Corporation 82801AA IDE Controller (rev 02) (prog-if 80 [Master])
Subsystem: Intel Corporation 82801AA IDE Controller
Flags: bus master, medium devsel, latency 0
[virtual] Memory at 000001f0 (32-bit, non-prefetchable) [size=8]
[virtual] Memory at 000003f0 (type 3, non-prefetchable) [size=1]
[virtual] Memory at 00000170 (32-bit, non-prefetchable) [size=8]
[virtual] Memory at 00000370 (type 3, non-prefetchable) [size=1]
I/O ports at ff00 [size=16]
Kernel driver in use: ata_piix
Kernel modules: ata_piix, piix
00:1f.2 USB Controller: Intel Corporation 82801AA USB Controller (rev 02) (prog-if 00 [UHCI])
Subsystem: Intel Corporation 82801AA USB Controller
Flags: bus master, medium devsel, latency 0, IRQ 9
I/O ports at da00 [size=32]
Kernel driver in use: uhci_hcd
Kernel modules: uhci-hcd
00:1f.3 SMBus: Intel Corporation 82801AA SMBus Controller (rev 02)
Subsystem: Intel Corporation 82801AA SMBus Controller
Flags: medium devsel, IRQ 10
I/O ports at 04c0 [size=16]
Kernel driver in use: i801_smbus
Kernel modules: i2c-i801
00:1f.5 Multimedia audio controller: Intel Corporation 82801AA AC'97 Audio Controller (rev 02)
Subsystem: Giga-byte Technology Device 2000
Flags: bus master, medium devsel, latency 0, IRQ 10
I/O ports at de00 [size=256]
I/O ports at dc00 [size=64]
Kernel driver in use: Intel ICH
Kernel modules: snd-intel8x0
01:03.0 Ethernet controller: Sundance Technology Inc / IC Plus Corp IC Plus IP100A Integrated 10/100 Ethernet MAC + PHY (rev 31)
Subsystem: Sundance Technology Inc / IC Plus Corp Device 0201
Flags: bus master, medium devsel, latency 64, IRQ 11
I/O ports at cc00 [size=128]
Memory at e8000000 (32-bit, non-prefetchable) [size=512]
Expansion ROM at dfc00000 [disabled] [size=64K]
Capabilities: <access denied>
Kernel driver in use: sundance
Kernel modules: sundance
lsmod
snd_ac97_codec 85937 1 snd_intel8x0
snd_seq 42628 5 snd_seq_dummy,snd_seq_oss,snd_seq_midi_event
snd_seq_device 4313 3 snd_seq_dummy,snd_seq_oss,snd_seq
snd_pcm_oss 33693 0
ac97_bus 750 1 snd_ac97_codec
snd_mixer_oss 14810 1 snd_pcm_oss
snd_pcm 57479 3 snd_intel8x0,snd_ac97_codec,snd_pcm_oss
snd_timer 16117 2 snd_seq,snd_pcm
sundance 15991 0
uhci_hcd 19124 0
snd 43847 9 snd_seq_oss,snd_intel8x0,snd_ac97_codec,snd_seq,snd_seq_device,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_timer
mii 3218 1 sundance
ppdev 4882 0
i2c_i801 7122 0
soundcore 5007 1 snd
iTCO_wdt 7577 0
ehci_hcd 31594 0
lp 6616 0
sr_mod 13161 0
analog 7939 0
psmouse 56309 0
ns558 1931 0
parport_pc 27680 1
shpchp 26592 0
intel_agp 23225 1
button 3638 0
thermal 9326 0
processor 26494 1
snd_page_alloc 5809 2 snd_intel8x0,snd_pcm
iTCO_vendor_support 1453 1 iTCO_wdt
gameport 7130 3 analog,ns558
parport 26575 3 ppdev,lp,parport_pc
pcspkr 1347 0
usbcore 118921 3 uhci_hcd,ehci_hcd
serio_raw 3620 0
evdev 6970 8
i2c_core 15369 1 i2c_i801
cdrom 31625 1 sr_mod
pci_hotplug 23492 1 shpchp
agpgart 23331 2 intel_agp
sg 21079 0
rtc_cmos 7504 0
rtc_core 12011 1 rtc_cmos
rtc_lib 1450 1 rtc_core
ext2 56463 1
mbcache 4278 1 ext2
sd_mod 24101 3
pata_acpi 2264 0
ata_generic 2235 0
ata_piix 17725 2
libata 135579 3 pata_acpi,ata_generic,ata_piix
floppy 47412 0
scsi_mod 78933 4 sr_mod,sg,sd_mod,libata
i've read i can disable the kernel modules that i don't need to improve the memory usage.
which modules i can disable without "kill my system"?. i don't want SATA, DVD, bluray, infrared, floppys, bluetooth, usb3.0, 3d video card, dial-up-integrated modem, ntfs, 'cause mi old is so old. i want it only for the university.
thanks in advantage for the tips, and sorry if someone can't understand very well that i wanna tell you, english isn't my "mother languaje".

thanks for the answers. yes, i have a 1 gb of swap.
i think i can reduce the memory usage of the system if i dissable the kernel modules that i don't use. but, the question is: what modules is safe to disable to get it?
thanks in advantage

Memory usage in Analysis Services tabular model

Hello,
I've been researching and investigating trying to understand what is consuming memory resources in a tabular model that I'm working with. Using SQL Server Management Studio, the Estimated Size of the database is reported as 7768.34 MBs. Using
Kasper de Jonge's BISM Server Memory Report, the database is reported as 15,465.13 MBs. However, a majority of the fields in the BISM Server Memory Report are empty, and so I cannot determine what is consuming the memory. The data source for this particular
workbook is $SYSTEM.DISCOVER_OBJECT_MEMORY_USAGE.
For example: I drill-down to an individual column (ColumnA) in the BISM Server Memory Report (Database > Dimensions > Table > In-Memory Table > Columns > Column) and the reported memory usage is 706.97 MBs. Underneath ColumnA,
I see a blank level with a reported memory usage of 623.59 MBs and a Segments level with a reported memory usage of 83.39 MBs. Looking at $SYSTEM.DISCOVER_STORAGE_TABLE_COLUMN_SEGMENTS, if I SUM the USED_SIZE for ColumnA, it totals roughly 83 MBs which matches
what is reported in the BISM Server Memory Report for the segment size. How do I determine what the other 623.59 MBs is being used for? Again, this discrepancy occurs for all columns in the model and not just this one example.
Thanks!

Follow up to my original question. It appears that the blank levels (at least under the column level) the Kasper de Jonge's BISM Server Memory Report reports the dictionary size of the column. The memory usage size matches the DICTIONARY_SIZE attribute in
the $SYSTEM.DISCOVER_STORAGE_TABLE_COLUMNS. I made a mis-assumption as to what the information $SYSTEM.DISCOVER_STORAGE_TABLE_COLUMN_SEGMENTS was providing.
In my original post I reference one database in particular in where the Estimated Size property in the Database Properties dialog is listed as 7,768.34 MBs. and the $SYSTEM.DISCOVER_OBJECT_MEMORY_USAGE reports 15,465.13 MBs. Thoughts, comments, or opinions
on why the Estimated Size property does not match what's reported in $SYSTEM.DISCOVER_OBJECT_MEMORY_USAGE?
Thanks!

Shared memory: apache memory usage in solaris 10

Hi people, I have setup a project for the apache userID and set the new equivalent of shmmax for the user via projadd. In apache I crank up StartServers to 100 but the RAM is soon exhausted - apache appears not to use shared memory under solaris 10. Under the same version of apache in solaris 9 I can fire up 100 apache startservers with little RAM usage. Any ideas what can cause this / what else I need to do? Thanks!

a) How or why does solaris choose to share memory
between processes
from the same program invoked multiple times
if that program has not
been specifically coded to use shared memory?Take a look at 'pmap -x' output for a process.
Basically it depend on where the memory comes from. If it's a page loaded from disk (executable, shared library) then the page begins life shared among all programs using the same page. So a small program with lots of shared libraries mapped may have a large memory footprint but have most of it shared.
If the page is written to, then a new copy is created that is no longer shared. If the program requests memory (malloc()), then the heap is grown and it gathers more private (non-shared) page mappings.
Simply: if we run pmap / ipcs we can see a
shared memory reference
for our oracle database and ldap server. There
is no entry for apache.
But the total memory usage is far far less than
all the apache procs'
individual memory totted up (all 100 of them, in
prstat.) So there is
some hidden sharing going on somewhere that
solaris(2.9) is doing,
but not showing in pmap or ipcs. (virtually
no swap is being used.)pmap -x should be showing you exactly which pages are shared and which are not.
b) Under solaris 10, each apache process takes up
precisely the
memory reported in prstat - add up the 100
apache memory details
and you get the total RAM in use. crank up the
number of procs any
more and you get out of memory errors so it
looks like prstat is
pretty good here. The question is - why on
solaris10 is apache not
'shared' but it is on solaris 9? We set up
all the usual project details
for this user, (jn /etc/projects) but I'm
guessing now that these project
tweaks where you explicitly set the shared
memory for a user only take
effect for programs explicitly coded to use
shared memory , e.g. the
oracle database, which correctly shows up a
shared memory reference
in ipcs .
We can fire up thousands of apaches on the 2.9
system without
running out of memory - both machines have the
same ram !
But the binary versions of apache are exactly
the same, and
the config directives are identical.
please tell me that there is something really
simple we have missed!On Solaris 10, do all the pages for one of the apache processes appear private? That would be really, really unusual.
Darren

System Settings - Memory usage - Application

In Memory Usage - Application, under System Settings, my slider is set to 100% and gives 2560 MB.
I was wondering where this figure of 2560MB comes from, is that the max that FCE can use/access? I have 10Gb Ram on the system in total, why is FCE only using 2560?
Is this normal, or indicating a problem on the system somewhere?
Thanks
Neil

Thanks
That has set my mind at rest. I have not broken it or done something wrong then.
I am just working my way through a basic FCE 4 tutorial book.
More dumb questions to follow
NP

Keep getting this msg: AVG HAS DETECTED A HIGH MEMORY USAGE BY FIREFOX--TOTAL MEMORY; 292 MB. I HAVE NO IDEA HOW TO CLEAR THIS

see question above and help me please... it's slowing down my computer.
JH

The figure may not necessarily be high depending what you are doing with firefox. Do you know how much RAM is installed on your computer ?
The report is apparently being generated by AVG software, you will need to consult the AVG manual or its faq/site/forum if you want to turn off such notifications.
Note if you go to ''about:memory'' in the firefox location bar it will generate a report that you may find useful. See also [[high memory usage]]

Question on memory usage

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