4.2 seems to have vastly improved memory management

This may not be something most uses will notice, but by using the 'MemoryFree' app I have noticed that the upgrade to 4.2 leaves much more software free memory on my iPhone4 than 4.1. I would guess that this would tend to boost performance as well, but I haven't noticed any perceptible change there.

sn4p2k wrote:
im not updating to 4.2 and i have no problems with performance on 4.1
I don't really think you read what I posted!
I didn't say I had issues with 4.1 and they went away after I upgraded to 4.2. I just pointed out that there were obviously major improvements made between 4.1 and 4.2 'under the hood', and that this was demonstrated in part by the clear improvement in the memory management. I stressed that i had not noticed any perceptible difference, but that the improvements were obviously there.

Similar Messages

SAP Memory Management

Hi All,
Iam just starting Performance area in SAP, i would like to have knowledge on memory management. So could anyone help me the starting in this area.
Cheers
DV

Hi ,
[Link|Re: FAQ: Memory Management in SAP for Windows;Re: FAQ: Memory Management in SAP for Windows
Thanks,
Ramakrishna.

Memory managment

I'm searching document about j2me memory managment: heap, garbage collector etc. etc.
Anyone can indicate me a link?

AUTO Memory management works for 100% of the time. Also it gives you flexibility to set the individual memory parameters to its min values, so that those memory components are allocated at to least to thiose min value and then still have the auto memory management for rest of the available SGA memory.
Regards

6.0.1 seems to have fixed my iPhone 5 battery life. Hypothesis as to why inside...

So after installing iOS 6.0.1, and being COMPLETELY angry with no mention of the battery drain glitch being resolved in the patch notes, I'm pleasantly surprised that I can report that my battery life is now BETTER than my iPhone 4 was. This is like a godsend! I used to see a percentage go down in less than a minute, but I've been at 94% for the past 5 minutes of usage at max brightness with all settings on like cloud, fetch, push, etc.
My best guess as to the glitch that caused the battery drain is that something was entirely funky with the way wifi and cellular was handled, and that was the glitch that was resolved that indirectly was causing diminished battery life.
I assume that Apple was aware of the glitch, but wanted to minimize bad publicity so they never acknowledged the problem, but worked on a fix silently. I'm not sure I agree with that approach, but the important thing is that they seemed to have fixed it, since the difference is so obvious to me that it's like night and day. Can anybody else confirm their battery life has also improved significantly?

I've been using my phone constantly for the past half hour with all features on and max brightness and its only gone down 5%.
It was going down over a percent a minute before with features turned off! It's so dramatic that it's hard not to notice.

Help. I have a Google Hangout in 40mins and my sound seems to have vanished. I went to Sys Prefs and it came up with Digital Out....and the Internal Speakers option is no longer there. How do I reboot, or fix this please?

help. I have a Google Hangout in 40mins and my sound seems to have vanished. I went to Sys Prefs and it came up with Digital Out....and the Internal Speakers option is no longer there. How do I reboot, or fix this please?

There are many possible causes for this issue. Take each of the following steps that you haven't already tried. Some may not apply to your model. Back up all data before making any changes.
1. Start with the steps recommended in this support article. Don't skip any of the steps. It's the starting point for further efforts to solve the problem.
2. Make sure you have a fully up-to-date installation of OS X.
3. If you've installed an application called "Memory Clean" or any other third-party software that is supposed to "clean" or "purge" memory automatically, remove it according to the developer's instructions and restart. You should do that even if the software is not causing the problem, because it's useless.
4. Other third-party software that has been reported to interfere with sound output includes "Boom" and "Samsung Kies." If applicable, uninstall according to the developer's instructions (not by dragging something to the Trash.)
5. If an AirPlay device is selected for sound output from iTunes (or from other applications via third-party software such as "Airfoil"), deselect it.
6. Launch the application "Audio MIDI Setup" by entering the first few letters of its name in a Spotlight search and selecting it in the results (it should be at the top.) Select Built-in Output from the list on the left. If the Mute boxes are checked, uncheck them.
7. If a red light is visible in the audio-out port when sound should be playing, the internal switch is stuck in the position for digital output. You may be able to free it by inserting and removing a mini-stereo jack of the proper size. If not, the machine needs to be serviced. Inserting any kind of tool in the port may cause damage that won't be covered by the warranty.
If there's no red light, the switch may still be stuck in the headphone position. Try to free it the same way.
8. Disconnect all wired peripherals except keyboard and mouse, if applicable. If more than one display is connected, disconnect all extra ones. Restart and test.
9. If you have a MacBook Air, turn off Bluetooth and restart.
10. Start up in safe mode. Don't log in; just restart as usual when the login screen appears. When you do, make sure the words "Safe Boot" do not appear in the login screen. If they do, the system is still in safe mode and sound won't work.
11. Reset the NVRAM.
12. Reset the SMC.
13. Triple-click anywhere in the line below on this page to select it:
/Library/Preferences/Audio
Right-click or control-click the highlighted line and select
Services ▹ Reveal in Finder (or just Reveal)
from the contextual menu.* A folder should open with an item selected. Move the selected item to the Trash. You may be prompted for your administrator login password. Restart the computer and empty the Trash. Recreate your settings in the Sound preference pane.
*If you don't see the contextual menu item, copy the selected text to the Clipboard by pressing the key combination command-C. In the Finder, select
Go ▹ Go to Folder...
from the menu bar and paste into the box that opens by pressing command-V. You won't see what you pasted because a line break is included. Press return.
14. Reinstall OS X after backing up all data.
15. Make a "Genius" appointment at an Apple Store.

Labview doesnt seem to be re-using memory

I have a high speed hardware timed DAQ program (Labview 6.02) that gathers syncronous counter/timer information for a short period of time. Due to the shear volume of data and the speed at which it is gathered It is buffered and then saved to disk. Upon completion of the acqiusition the data is pulled from the disk and processed (x-Y graphs, FFT etc). If I try and do another acquisition the program doesnt seem to re-use the memory utilised for data and for displaying it in graphs etc. So after a few acquisitions the whole thing can grind to a halt. I have to close the application and Labview and restart it so that the acquisition will run properly and then the things starts all over again. How can I get labview to sort of dump
the data or clear its memory once I have processed the graphs etc. After all the raw data is saved on disk anyway.

> Does anyone know exactly what the "Deallocate memory as soon as
> possible" option does? We are also trying this as a last resort, but
> we have no clue what it is actually doing. For example, will it dump
> data in uninitialized shift registers? Does it unload VIs from memory
> (when you would normally expect them to remain in memory)? Or is it
> just "tidying things up" more quickly than it normally does?
>
This option means that after each subVI call, even those inside of
loops, LV will deallocate all temporary memory buffers. It has no
effect on unwired shift registers, controls and indicators or on the
results of the subVI. Without this option turned on, LV will leave the
buffers allocated waiting for the subVI to be called
again. So, this is
the typical space versus time tradeoff. This has no effect on which VIs
are loaded or unloaded.
Now that you know what it does, this feature can lead to fragmentation
of the memory manager since it so frequently allocates and deallocates
the blocks of memory. There is nothing wrong with the feature, but most
memory managers can't deal with this and with certain VIs, it can result
in more memory being used than when it is turned off.
Often the "memory problem" is better solved by getting rid of global
variables and local variables and making more subVIs. It is hard to get
more specific, but the user manual used to have a chapter on performance
that explained some of it.
Greg McKaskle

My Mac Mini seems to have slowed a bit. I bought it last December 2011. Is there a simple tune up I can do to make it run faster?

My Mac Mini, which I bought last December 2011, seems to have slowed a bit. Is there something I can do to tune it up to get it to run faster?

Hi Annie,
Hello, see how many of these you can answer...
See if the Disk is issuing any S.M.A.R.T errors in Disk Utility...
http://support.apple.com/kb/PH7029
Open Activity Monitor in Applications>Utilities, select All Processes & sort on CPU%, any indications there?
How much RAM & free space do you have also, click on the Memory & Disk Usage Tabs.
Open Console in Utilities & see if there are any clues or repeating messages when this happens.
In the Memory tab, are there a lot of Pageouts?

My airport express doesn't seem to have extended the wifi range

I have recently bought an Airport Extreme which connects to my modem (broadband) via ethernet. This wifi signal does not reach the kitchen and we need internet access there, so I have bought an Airport Express, hoping it would extend the signal and give us internet in the kitchen. I have set them both up, and there are green lights on both, but the range does not seem to have improved at all! Can someone please walk me through the setup, I may have missed something.
Thanks!

Dynamic WDS - Extending a Wireless Network Setup
If practical, place the base stations in near proximity to each other during the setup phase. Once done, move them to their desired locations.
Open AirPort Utility, and then, select the base station that will connect to the Internet.
Choose Manual Setup from the Base Station menu, or double-click the base station to open the configuration in a separate window. Enter the base station password if necessary.
Click AirPort in the toolbar, and then, click Wireless.
Choose “Create a wireless network” from the Wireless Mode pop-up menu, and then, select the “Allow this network to be extended” checkbox.
Next, select the base station that will extend this network, and then, choose Manual Setup from the Base Station menu, or double-click the base station to open its configuration in a separate window. Enter the base station password if necessary.
Choose “Extend a wireless network” from the Wireless Mode pop-up menu, and then, choose the network you want to extend from the Network Name pop-up menu.
Enter the base station network and base station password if necessary.
Click Update to update the base station with new network settings.
(ref: Pages 43-44 of Apple AirPort Networks.)
(ref: Wi-Fi base stations: Extending the range of your wireless network by adding additional Wi-Fi base stations)

I am unable to upgrade to Mavericks even though I seem to have all the requirements listed by Apple.

When offered the free upgrade in App Store, I am unable to upgrade to Mavericks even though I seem to have all the requirements listed by Apple.
Model: MacBookPro 2,2, Processor: Intel Core 2 Duo, Speed: 2,33 GHz, Processors: 1, Cores: 2, L2 Cache: 4 MB, Memory: 4GB
Bus Speed: 667MHz, Boot Rom Version: MBP22 00A5.B07, SMC Version: 1.12f5.

10.7.5 is the max for your model. Your mac is one model too old to run anything higher.

Latest ATV update seems to have worked...

I had been having a ton of problems with my downstairs ATV over the past month or so. It would continually drop out of itunes, and even restarting itunes wouldn't work. I tried a factory reset. Syncing would take up to 24 hours. Just really bad.
I did the check for updates and updated the software on the ATV with whatever changes were newest, and it seems to have worked. I've had itunes open for 24 hours and the Living Room ATV is still showing up on it. And I was able to stream some content somewhat efficiently. Still haven't tried to see how much improved the sync time is, but I'm hopeful.

OK, I tried running disk utility from the system disk as you suggested. It acted just the same way - froze about 1/3 of the way through. Gave the same error message, and the same scary message that if you stop running disk utility (which one must do since it will not run), then there is a risk of damaging the disk.
Thanks for the help. Any other suggestions?

My iPhoto seems to have frozen. Was importing photos went to the import selected, it tells me it's importing them but nothing is happening and I can't click on any buttons to stop the import. Any help would be great. Thanks

My iPhoto seems to have frozen, hooked my camera up to my MacBook selected the images I wanted imported and left the room for five minutes. When I came back it said it was still importing which I thought was funny as I was only importing 6 images. I tried to stop the import but the buttons are no longer highlighted and I can not shut down iphoto as it tells me it is still importing photos. Any help with this would be great as I have to get these photos uploaded for my assignment for school.
Thanks

Did you OK the option to have the application delete the photos off the memory card? If not then just force quit iPhoto by typing Command+Option+Esc. Then select iPhoto to force quit.
If you did OK the option to delete the memory card I'm not sure if force quitting iPhoto will abort that function. You might try disconnecting the camera and then force quit iPhoto.
If you do find that the photos were deleted and are not in the library you can recover them from the memory stick with an application like MediaRECOVER. You can run it in demo mode to verify it can see and recover the photos on your card before you have to purchase it.
OT

Why does my mac use virtual memory when I still have free physical memory?

I have a 2011 i7 quad core mac, I was hoping it would scream. Most of the time it does. However when trying to edit within FCPX I get a very disappointing experience with many pauses and pin wheels if I don't close every single other program.
I have 8GB of physical memory and when i'm experiencing these problems I see that i still have 1-2 gb of physical memory free or inactive. At the same time FCPX is only using 2gb of memory. I just happened to keep an eye on the VM page in/outs and noticed them going up.
Right now i'm doing some browsing and emailing, that's about it.. its sat with over 4gb of memory free or inactive and yet still the page in/outs is still going up occasionally. It's currently at over 2 million page ins, and over 1 million page outs.
So with so much physical memory free why is this happening!? At the moment the mac feels nice and responsive, but if i start trying to use FCPX i'll start to experience these slowdowns, stalls... whenever i see these i see my main hdd is being accessed whilst the pinwheel is displayed.. I mean i get it, its VM, the hdd is too full, a bit fragmented perhaps, its stalling... but i've got gigs of memory sitting free or inactive... why wont the OS use it!!!
Would my experience improve if i took the plunge and got 16gb of memory instead of 8gb!?
Thanks for your help!

Because without virtual memory, managing computer RAM is a royal pain in the ...
Virtual memory cost you nothing, and gains you huge benefits, even if you do not notice it
What cost you is when you need more real RAM than is available, and things are thown out of RAM, either back to the original file it came from (Read Only information), or pushed out to the swapfiles (/var/vm/*). Then the system has to wait for slower disk access. But even this is better than not being able to run the apps until you quit something else.
(speaking as someone that starting his professional life working with 1" punch paper tape, 80 columns cards, 7-track and 9-track mag tapes, 1MB disks (you heard me right 1 Megabyte), etc..., and trust me when I tell you that virtual memory is a god send to software development).
There are a lot of problems running a modern operating system with out virtual memory. For example all the shared libraries and frameworks that provide services to an application would all need to be compiled into the application, which means every application gets bigger and instead of having a single copy of the shared library or framework, you would have dozens of copies wasting your RAM.
Without virtual memory, you would be required to find a contiguous chunk of RAM to run your application. Think of this like going out to dinner by yourself, you can find any available table, but if you go to dinner with your extended family, you need a table for 10 to 15, and if you are going to dinner with your high school graduation class, you will need hundreds of seats all next to each other and a very large table. In the later situations you have to wait until the resturante has enough contiguous space, which means you have to wait until other diners finish. There may be lots of empty tables, but they are not together, and your group wants/needs to sit together. Virtual memory allows gathering any 4K chunk of RAM, building a virtual memory map for all those random 4K chunks, and make it look like one big contiguous chunk of RAM, so you can run your application right away, no waiting.
Going back to shared libraries and frameworks. This code will need to have addresses resolved so they branch to the correct locations during execution, and it will need to have addresses resolved on where its program variables are located in RAM. Using virtual memory, you can local a shared object into RAM, then place it in everyone's virtual memory map at the exact same RAM address. This means everyone can use the exact same code, and since everyone is using it at the same RAM address, it makes life so much easier for the operating system (translation, less work, less wasted CPU time, faster execution).
When a program wants to grow, for example a web browser loading a web page (and its images) into RAM, it needs to allocate additional RAM. In the contiguous RAM model, you need to get control of the RAM that imediately following your program, but if that RAM is being used by someone else, you have to wait until that program goes away.
Virtual memory provides protection from another program looking at and modifying your program's RAM. Malware would just love for virtual memory to go away.
You want virtual memory. What you do not want is excessive paging activity.
If you are concerned, then you can launch Applicaitons -> Utilities -> Terminal. Once you have a terminal command prompt, enter the following command:
sar -g 60 100
which will tell you the number of 4k pages written to /var/vm/pagefile ever minute for 100 minutes (modify the numbers to suit your tastes). You can then go about your normal usage, and come back later to see how much you have been using the pagefiles. If you have mostly zeros, and an occasional small burst, this is noise, and not worth worrying about. If you have sustained pageout activity, with higher numbers, then you should either consider running less things all at the same time, or looking for an application that is being greedy with its memory use (or has a memory leak), OR get more RAM for your Mac if you need to do all those things at once.
But do not complain about virtual memory. Life would be much worse without it. Then again if you have a better idea, write a research paper, and get operating system vendors (as well as hardware vendors) to implement your ideas. I am serious, as I've seen many accepted computing ideas be overturned by good new ideas.

My mac mini is incredibly slow, but I have plenty of memory available. Why?

Why?My mac mini is incredibly slow, but I have plenty of memory available. My machine has 2.3 GHz Intel Core i5 processor and 2GB 1333 MHz DDR3 for Memory. Any idea what I can do?

Launch the Console application in any of the following ways:
☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)
☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.
☞ Open LaunchPad and start typing the name.
The title of the Console window should be All Messages. If it isn't, select
SYSTEM LOG QUERIES ▹ All Messages
from the log list on the left. If you don't see that list, select
View ▹ Show Log List
from the menu bar at the top of the screen.
Click the Clear Display icon in the toolbar. Then take an action that isn't working the way you expect. Select any messages that appear in the Console window. Copy them to the Clipboard by pressing the key combination command-C. Paste into a reply to this message by pressing command-V.
The log contains a vast amount of information, almost all of which is irrelevant to solving any particular problem. When posting a log extract, be selective. A few dozen lines are almost always more than enough.
Please don't indiscriminately dump thousands of lines from the log into this discussion.
Please don't post screenshots of log messages—post the text.
Some private information, such as your name or email address, may appear in the log. Anonymize before posting.

I'm getting messages on my iMac telling me I don't have enough app memory after updating to Mavericks. This eventually freezes my computer.

I'm getting messages telling me I don't have enough application memory and I need to close my apps. I have 1 TB of memory installed and I'm only using 800,000 GB of memory leaving 900,000 GB free. Eventually this freezes my mac or makes it impossible to use. I've used Terminal to repair permissions. I've turned my iMac off and then on again. Nothing works for longer than a few minutes. The best fix seemed to be opening one app at a time. But even this failed after 10 minutes or so. Any help would be appreciated. Thanks.

I have the maximum of 4 GB of RAM installed. I have 850 GB of hard drive space remaining. I've looked that the two articles noted in replies to my question. Perhaps it is an issue with not enough RAM as Mavericks is RAM intensive. That leaves only one option and that is to purchase a new desk top computer with more RAM, as minimizing the number of apps open doesn't always work. Any other suggestions?

Warning that the GPU accelerated ray-traced 3D renderer does not have enough free memory to operate

[UPDATE: Memory handling for the ray-traced 3D renderer is greatly improved by installing the After Effects CC (12.2) or After Effects CS6 (11.0.4) update.]
You may see a warning message when using After Effects CC (12.1) that the GPU accelerated ray-traced 3D renderer does not have enough free memory to operate.
When the GPU acceleration of the ray-traced 3D renderer is disabled, the CPU version of the ray-traced 3D renderer will operate.
The message about the GPU-accelerated ray-traced 3D renderer not having enough free memory to operate is because of a change in After Effects CC (12.1) to actually warn you when your computer was in a dangerously low VRAM state. In After Effects CC (12.0) and After Effects CS6 (11.0), a computer with very little VRAM could still try to use the GPU accelerated ray-traced 3D renderer, but it would very, very, very often crash. So, now, After Effects CC (12.1) is just detecting the condition that would lead to a crash, telling you about it, and disabling the GPU acceleration until you have dealt with the problem.
So, how do you deal with this low-memory condition? You free up VRAM. This means closing all applicaitons that use GPU memory, which includes web browsers (yes, web browsers these days use the GPU). It also means disconnecting additional monitors, each of which uses a lot of VRAM. In some cases, restarting the computer is necessary.
This is primarily a problem on Mac OS with cards with 1GB of VRAM, such as the GT 650M in the MacBook Pro. These cards on this OS have just barely enough GPU memory (VRAM) to make use of the GPU-accelerated ray-traced 3D renderer under even the best of circumstances. If you want to use the GPU-accelerated ray-traced 3D renderer, you should really be using a more powerful GPU, one with more VRAM.
Note that this has nothing to do with the OpenGL GPU features in After Effects. Details of the GPU features are here: http://blogs.adobe.com/aftereffects/2012/05/gpu-cuda-opengl-features-in-after-effects-cs6. html

hey Todd
i have the exact same problem but with my new macpro with renderay no matter what i do even a simple 3d extraction the renderay crashes! My cuda is full up to date and everything not sure why! if you have any way to resolve this issue would be awesome and help us out since i am on a deadline! at the moment!
I have attached a few screen shots and my computer specs! as you can see the GPU Should not be running low on memory xD since its pretty much nearly full speced!
The error!
This is what was there! and all i added was a extractor after this and the error above appears!
and this is my computer specs as you can see there is no lack of Power, Ram or VRAM here! so not sure why this error is occurring even after updating CUDA
if you have anything else i could try please let me know! Thanks!

4.2 seems to have vastly improved memory management

Similar Messages

Maybe you are looking for