The tag has no wiki summary.

learn more… | top users | synonyms

-1
votes
0answers
17 views

Does a process get given its entire address space when it starts or is it given memory on an as-needed basis?

Does each process get allocated its whole address space in virtual memory (4GB (3GB) in a 32 bit system) right when the process starts or does the OS only allocate memory for the process as the ...
-1
votes
3answers
38 views

How many processes are in memory at a given time

Is there only one process in memory at a time and context switches constantly move processes back and forth between DRAM to disk? Or are multiple processes kept in DRAM at the same time, and context ...
0
votes
0answers
19 views

MacOS X: how can I see which application currently have “inactive” memory?

I'm working on MacOS X 10.6 and as my old MacBook only has 3 GB of RAM, I'm currently struggling having enough free RAM to keep it usable. I'm often looking at the Activity Monitor and if I see that ...
0
votes
0answers
14 views

Data Assignation Tables vs. actual HDD location values?

This is my first post to any of the 136 SE website's and I just wanted to say how much I value the community and the information. I Apologize ahead of time if this is a duplicate. I spent a fair ...
0
votes
0answers
68 views

Application to Automatically Free Modified Memory

Is there a Windows application or script that can free modified memory belonging to a given application. I have tried Flush File Cache which is great as a big ol' hammer to clean out all modified ...
1
vote
2answers
71 views

Where is the rest of my MacBook’s hard disk space?

I have a MacBook Pro with a 250GB hard drive. Right now I'm left with only 4GB free memory. I've selected the root folder in Finder (my computer name) and hit CMD+A and ALT+CMD+I to get the size of ...
0
votes
0answers
66 views

How do I find lower the amount of or find what is using committed memory?

I was recently looking at this question: Why is the total memory usage reported by Windows Task Manager much higher than the sum of all processes' memory usage? when my task manager was doing just ...
1
vote
2answers
39 views

OS freeze when OS starts to swap memory

Background: I have 16 GB of memory in my machine. When my machine uses already 15 GB of memory and my application allocates another chunk of 2 GB memory I run out of physical memory and swapping ...
18
votes
2answers
2k views

In Windows 8.1, is there a way ensure a process is not the first to get killed when running out of RAM?

I wrote a .NET 4.5 application that buffers colour, infrared, and depth data from a Kinect v2, performs some processing on it, and then dumps it to disk, in uncompressed form; the .NET application ...
1
vote
1answer
21 views

What are these folders for? [duplicate]

I have dozens of folders like this in my C:\ drive, I'm not sure what exactly they do (I think they may be related to Windows 7 updates) and I'm running very low on space so i'd like to be able to ...
-5
votes
2answers
189 views

RAM Usage is insane running a game [closed]

My system is Windows 7 Home Premium, i5-2320 proc, 8GB DDR3 1333Mhz RAM, Z77X-UD5H mobo, I have two HDDs, one is a 1TB and the other a small 288GB (250gb). Also, a new GPU, the R9 285. Recently I’ve ...
1
vote
1answer
113 views

DDR4 Module/Bank Management

I'm a bit confused about how DDR4 works in detail. I'm not very familiar with DDR details or Memory-Controller details. So far DDR4 is advertised everywhere that the transferrates of DDR4 accumulate ...
0
votes
2answers
87 views

What is an expected behavior when Windows runs out of memory?

When my machine with Windows 8.1 runs out of memory (RAM), Windows displays a message telling that memory is low and that I invites me to terminate an offending application. If I agree, the ...
0
votes
1answer
157 views

Physical memory used space by process in taskmagare

I sum the value of used space memory by each process (all of them) that is showing in TaskManager and I understand that the sum of them is not really 68% of my memory card that is shown in the below! ...
0
votes
1answer
51 views

Why memory can't be collected cleanly after a process terminats?

After long time running, computers always become slow. Rebooting generally make them faster. But how does this happen? Initally I thought this might be related to memory usage. But recently I learned ...
0
votes
0answers
217 views

Set maximum memory per process in Windows 8.1

I am using a Toshiba laptop with 6.0 GB of memory running Windows 8.1. I've had it freeze up a couple of times due to a process trying to use more memory than the computer has available. I've been ...
0
votes
0answers
909 views

Werfault.exe Error Windows 8.1

I am using Windows 8.1 and two days ago I was playing an online game when suddenly the laptop froze. WerFault.exe-Application Error The Instruction at 0x747193a8 referenced memory at 0x008d23a0.The ...
3
votes
1answer
170 views

Sorted tree view in htop or alternative?

I am running a Debian flavor of Linux, and I use htop to keep track of memory usage, since it is more detailed than top. I can't seem to get it to sort by memory and display process trees at the same ...
1
vote
1answer
863 views

Why does not Windows statically allocate RAM for Intel Integrated Graphics?

I wanted to know how much RAM is being utilized. It said that out of the 12 GB installed, 7 gb was allocated overall and it showed me the split up for each processes. I could not find the RAM ...
1
vote
1answer
107 views

Windows 2008R2 raising low memory events when 50GB of RAM is available

Observed Windows 2008 R2 is generating KernelObjects\LowMemoryCondition events when there is 50GB of RAM available and all processes are using just around 18GB. Not able to find the reason why ...
0
votes
0answers
29 views

Prevent a closed source chosen process from swapping on Windows [duplicate]

When I run VirtualBox If I don't use VirtualBox for some time and then I come back to using it the virtual machine runs very slowly, obliviously all subsequent operation go enough fast. How I can ...
3
votes
2answers
1k views

Where are Page tables stored

My question is "where are the page tables stored: in physical memory (RAM) or as some data structure in User space". PS: What I have understood so far: A process memory layout has few segments ( ...
2
votes
2answers
416 views

Can I use Nand flash as a swap memory in Embedded Linux?

I have 128 MB of Ram in one of my products, which was sufficient when we released first version of the product. But now we added some extra features in it, So this much Ram may cause a problem of OOM. ...
0
votes
0answers
76 views

ReadyBoost : How a Software Component Helps Boost the System Performance by Exploiting Flash Memory as a Cache?

One of the nice feature of windows 7 for low memory system is ReadyBoost, a software component that uses flash memory as a cache to actually speed up the the performance(Ref-Wikipedia). But If we ...
0
votes
0answers
215 views

99% used memory, but 70% of unused allocated memory and 97% swap available: what can I do?

In a server with 48GB of RAM, when I run top, I see that less than 500 MB are free (1%), whereas when I sum up the column of % of memory used by each process, it is around 30%. Since only the 2.7% of ...
0
votes
1answer
82 views

Is CPU cache (L1 - Ln) equal to TLB

If we are talking about CPU cache. Is Ln synonym for saying 'TLB (translation lookaside buffer) of type Ln' or does Ln include also somethin else than just TLB?
2
votes
2answers
314 views

Sources of Linux memory usage not in /proc/meminfo

I’m running a Linux server that shows weird patterns in memory usage that I’m trying to investigate. During normal operation, around 200MB of memory are used for applications according to munin, but ...
8
votes
1answer
804 views

Which files are cached by linux?

I understand that linux uses unused RAM to keep some files cached. But I wonder, which files it actually caches! If you take a look at free : Gesamt Belegt Frei Gemeinsam Puffer Cached Speicher: ...
-1
votes
1answer
53 views

memory mapping to physical ram (hardware)

When the memory management unit translates a logical address to a physical address using the translation table, how does the physical address get mapped to that address in ram. What I mean to say, is ...
0
votes
0answers
97 views

Windows 8.1 Waiting Lock Pool Tag FLwl - High Memory Usage

I am running Windows 8.1 with 8gb of ram and have lately been experiencing crashing issues with windows explorer when RAM utilization is over ~73%. I have run poolmon.exe to see if there are any ...
0
votes
0answers
249 views

PCI Express BAR memory mapping basic understanding

I am trying to understand how PCI Express works so i can write a windows driver that can read and write to a custom PCI Express device with no on-board memory. I understand that the Base Address ...
0
votes
1answer
456 views

Windows - How can I flush modified memory?

This is a follow up on my previous question, here: Windows modified memory without a pagefile - Super User I have no pagefile and a lot of modified memory according to resource monitor (Win 7 x64). ...
0
votes
1answer
136 views

Windows modified memory without a pagefile

How does Windows' modified memory work without a pagefile? The physical memory is modified and then...? I'm running Windows 7 with 16GB of RAM and no pagefile. I have about 2.5GB of modified memory, ...
0
votes
2answers
419 views

High Disk Usage while cleaning out “modified memory” on Windows 8

I am looking at the resource monitor tool of Windows 8. After closing a VMWare-VM, the "modified memory" jumps from 16 MB to 2GB. It slowly goes back down to 16 MB. While going back down, the disk ...
10
votes
1answer
601 views

increase desktop responsiveness on linux while swapping

All GNU/Linux distributions I tested so far have the problem that whenever the ram gets filled and the system begins swapping, the whole desktop and graphical user interface becomes unresponsive as ...
1
vote
1answer
2k views

Limit memory allocation for process

I am running Windows Server 2008 R2, and I would like to limit the allocated RAM memory space for a specific process, I have installed "Windows System Resource Manager" but I can only view the ...
0
votes
1answer
97 views

How is HDDM (not RAM!) accessed, modified and addressed in modern computers? [closed]

Warning: yeah, I know that article of Wikipedia. It's just too difficult for me! I hope that there is some person who could explain it more simply... Background: I designed a 6-bit computer. It has ...
0
votes
0answers
36 views

What is the name of the range of cells that are actually loaded into memory in Excel?

I keep thinking it's called Visible Range but I doubt that's actually it. Basically I'm trying to find out what the cells that are selected when you press CTRL+Left Arrow is called.
1
vote
1answer
354 views

Find out the sum of memory hogging process

As I'm always without memory on my PC I'd like to find out once for ever which is the most memory hogging program. The problem is that opening the task manager (I'm on Windows 7) doesn't seem to help. ...
1
vote
2answers
2k views

How to activate swap on Linux? “swapon -a” doesn't seem to work?

My computer has quite some memory (6GB) which is enough for most of what I do. A while back I was messing with my swap, turning it on and off with sudo swapon -a and sudo swapoff -a. In then end I ...
1
vote
3answers
1k views

Windows 8 and memory consumption [closed]

My current system should have enough memory (4GB), but it's the lower average right now and if I want to run multiple applications at once - which is needed - memory is getting scarce. In addition to ...
0
votes
1answer
240 views

Memory usage classification under Darwin (Mac OS X 10.8)

on Mac OS X using Memory Clean, I can behold this memory usage stats chart: While the meaning of active and free seems to be clear, what do "wired" and "inactive" memory refer to?
-1
votes
1answer
246 views

Python - Releasing/replacing a string variable, how does it get handled? [closed]

Say i store a password in plain text in a variable called passWd as a string. How does python release this variable once i discard of it (for instance, with del passWd or passWd= 'new random data')? ...
2
votes
2answers
36 views

8 or 12 gb when dealing with mat

I had a huge problem with my computer BSODying all the time and all the times it seemed to be a memory problem. I have 16 gb RAM (4*4) and checked each of my modules individually with memtest86 and ...
1
vote
0answers
87 views

SQL Server Continues to Swap RAM After Using a Virtual Machine

I have a dev computer running Windows Server 2008 R2 Enterprise and SQL Server 2008 R2 Enterprise, with 8GB of RAM. As I write code and use the database, SQL Server will use more-and-more RAM (which ...
2
votes
0answers
400 views

Random freezing caused by khugepaged?

I have a fairly beefy Arch Linux computer, kernel 3.7.7-1-ARCH. However, recently it's been having random freeze ups. Never common, but it'd freeze for a good 15 seconds where no program is ...
1
vote
1answer
94 views

Sharing RAM/G5 Desktop/iMac [closed]

I have a Mac G5 Desktop with 14GB of RAM installed which I sometimes use as a start up disk. I have a 27" iMac 2.8GHz Core i5 with only 4GB of RAM installed. Is there anyway I can access/utilise the ...
0
votes
1answer
45 views

When Should I Upgrade My AWS MySQL Server?

We have a server system that currently consists of 1 Apache server that is attached to a load balancer and one MySQL server that is by itself. Both servers are AWS Micro Instances. Everything is ...
0
votes
1answer
387 views

How does FileStream appends physically works?

I was dealing with a prepending problem and suddenly leads me to think about this question.... Maybe not only related to FileStream, I want to know how we actually appends binary into a file ...
0
votes
0answers
629 views

Kernel OOM killer been called when plenty of memory left while using malloc

The program is a memory exerciser that request multiple chunks of 512MB to malloc. For some reason the node 0 is been memory exhausted while the others are not been called. MemExerciser cpuset=/ ...