Memory management is the act of managing computer memory at the system level. Questions tagged with Memory Management can cover Applications and Operating Systems

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Out of memory Problem

I'm running a C++ program in Ubuntu 10.04 (32-bit system architecture). If I calculate the amount of memory that my program uses, it comes up to 800MB. I have a 4GB RAM in place. But still before the ...
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1answer
360 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 ...
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What I should know about memory management?

first of all: I don't use stackadmin or similar so please don't vote for moving there, I'm reading man top and paper "what every programmer should know about memory ..." I need really simple ...
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1answer
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My AppleMacPro1,1 has 8 slots for 2x1GB memory in each

I cannot find a replacement for 2 of them that have failed, and can only find 2x2GB ones. My question is will it be ok to put these in the 1GB slots?
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1answer
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MEMORY_MANAGEMENT BSOD - memtest86 showing no issues

I have just done a new I7 build and I am getting more BSODs than I'd like. I thought the first install might have had something go really wrong at some point, so I blew it away and started again. You ...
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1answer
58 views

Change memory size units in Windows 10

Just as the title implies, how can you change the unit sizes displayed in Windows? Instead of displaying files like this: +--------+---------------+ | Name | Size | +--------+--------------...
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1answer
113 views

Puzzled whether format the partition or simply copy back contents

In my previous question ntfs-partition-gets-auto-corrupt-becomes-raw-and-unreadable, I got some answers, but I am still not clear as to how to solve the problem. To quickly summarize it, Problem: ...
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1answer
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Which address space is used in system calls? physical? or virtual?

Explanation There’s two kind of address space virtual and physical. On the physical model (typically used by the kernel) the memory is bounded and each address correspond to physical ones. The ...
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1answer
70 views

Laptop CPU and RAM usage

For the past two days my laptop has been using way too much RAM and CPU even when I am not using my computer and/or have 1 window open. Here is a picture of my performance tab: Any idea why I am ...
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What is the benefit of increasing on-board graphics card allocated memory from BIOS?

In my BIOS settings I can set my Intel graphics card's memory from the default 256 MB to 512 MB. My laptop has a dedicated graphics card as well. Should I? What would I gain? Are there any downsides?
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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 ...
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1answer
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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?
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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?
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Is there an easy fix to this copy/paste into Excel error?

When I attempt to paste a large spreadsheet (from a DB, ~90,000 rows) into Excel, I keep getting this error: Microsoft Excel is waiting for another application to complete an OLE action I ...
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1answer
783 views

Windows server 2008 CPU load balancing

I have a Windows server 2008 CPU and Active Directory installed. Some how with lot of users and compiling process and many things, the CPU load rise too much and makes the server goes slow. What is ...
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1answer
272 views

How can I find out the memory usage of a Virtual PC VM through the host?

If I start a VM using Virtual PC then Task Manager does not show the memory usage of the VM. For example, right now I have a Windows 7 VM running. I have: VMWindow.exe 60MB RAM vpc.exe 24MB ...
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1answer
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BSOD Memory Management

While I was playing overwatch, I got several BSOD. I already tryed Memory Diagnostic and sfc/scannow with no luck! I attach some dump of the BSOD! Thanks for the future answers! DUMP
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Some Software Missing After BSOD

A few days ago I was running Windows 10 on my custom built PC and it had been running reliably for a year, but suddenly I got a BSOD and the error was MEMORY_MANAGEMENT. I restarted it and found that ...
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0answers
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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 responsive....
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How to disable caching in windows server 2012 R2?

How to disable caching in windows server 2012 R2 ? Any way to set it to a minimal value is also fine. Also disabling caching for a particular application will also work as only 1 application is run ...
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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 ...
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0answers
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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 ...
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Memory defrag in Windows 10 for virtual machine hosting

I have a very legitimate reason to want to defrag the memory - I need to run a virtual machine that requires 2GB of memory. Unfortunately it requires that to be one continuous block in physical memory....
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After RAM upgrde, Ubuntu 14.04 does work with 2GB but works with 1 GB

I have an Sony Vaio laptop which had 1GB RAM (512MB X 2 ). I wanted to upgrade to 2GB as the laptop supports up to 2GB. When I tried to use 2GB RAM on Ubuntu 14.04 32-bit it boots, passes the BIOS ...
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Relation between memory host and memory arguments xms and xmx from Java

I have the following host with the memory details: $free -m total used free shared buffers cached Mem: 7872 7579 292 17 483 ...
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Windows 10 - MEMORY_MANAGEMENT bsod on startup after installing linux dual boot

I recently installed a Kali linux dual boot on my laptop, and now every time i try to boot into windows, it crashes with a MEMORY_MANAGEMENT error before it even reaches the login screen. I've ...
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Is it possible to limit the memory a process uses from command line?

Is it possible to limit the amount of memory a process consumes from the command line and eventually automatically kill the process if it tries to overpass this limit? Something like MaxRam -4GB ./...
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page size in an OS with segmented demand paging

Exam Question : Assume that we're using an operating system which uses segmented demand paging with N segments and the average size of each segment is S and each entry in the page table is e bytes and ...
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Is queue a storage allocation area in memory?

We mainly study about heap , stack data structures which act as storage allocation area in memory , so is it that queue is also a storage allocation area in memory ,according to me PCB's are made in ...
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how does a process know it's pages have been swapped out?

Let's assume I have several processes running, a1 and a2. a2 takes so much space that physical pages belonging to a1 start to get swapped out. a1's page table has to be modified to reflect this. how a ...
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369 views

After upgrading to Windows 10 suddenly low memory issues

I have 8GB of ram and a decent computer. After upgrading to Windows 10, I keep getting messages saying I need to close programs and that I am low on memory. Then, right after, my screen will go black ...
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84 views

High RAM usage/software shutdown at 75%?

How come when my memory is at around 75% I get popups saying that my programs should be shut down, and sometimes they even fail to start when it's at around 80% (even though they would be using 2-5% ...
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Why is my private memory usage so low compared to commit memory?

After 120 hours of stable uptime on a Windows 7 computer (with hibernates instead of restarts between days), Windows has done something strange: programs consume large amounts of memory as usual, but ...
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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 ...
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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 ...
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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 ...
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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 ...
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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 ...
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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 ...
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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.
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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=/ ...
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Forcing suspended jobs to swap all memory in Ubuntu

Is is possible to suspend a job and force all of its memory to swap? I've got six jobs running, and they're competing with each other for resources. So much gets wasted on system swapping that they ...
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MemTest86 shows many errors with same err-bit

My computer running Windows 8.1 with one 4GB RAM always shows blue screen of death with code: KERNEL_SECURITY_CHECK_FAILURE So I run Windows diagnostic tool and it says hardware problems detected and ...