Questions tagged [memory]

RAM (random access memory), either RAM hardware or software and operating system use of RAM.

2,036 questions with no upvoted or accepted answers
Filter by
Sorted by
Tagged with
2 votes
0 answers
338 views

Windows 10: Poor Performance for Playing Game & Screen Capture

I hope this is the best StackExchange site to ask questions about optimizing system performance. If not, I apologize, & please direct me to the appropriate site. My current system is one of the ...
AntumDeluge's user avatar
2 votes
0 answers
3k views

Firefox garbage collection and RAM/memory cleanup

Firefox has a feature to do garbage collection and memory cleanup: On the about:memory page, Free memory > GC/CC/Minimize memory usage. Is it possible to trigger them externally, e.g. via a ...
david's user avatar
  • 337
2 votes
0 answers
245 views

Why do RAMMAP's total RAM usage of processes/mapped-file not even remotely add up to the total Memory usage in User Counts?

RamMap: User Counts Processes File summary In RamMap, the memory usage in first image is right. However, when I tried to add up all the Active memory, and the 2nd image and 3rd image doesn't match ...
obook's user avatar
  • 21
2 votes
0 answers
211 views

Watch Dogs 1 runs good in windows 7 at low settings but is unplayable in windows 10

Watch Dogs used to run fine at low settings on a windows 7 pc but on a windows 10 pc it does not give me even 20 fps. Win 7 gave me at least 20-25 fps. My specs:- Intel I3 5005u @ 2GHZ 4 ...
Crispy Con's user avatar
2 votes
2 answers
4k views

"The memory could not be written" error in virtualbox on Windows 10

so I'm running Ubuntu 18.04 LTS on VirtualBox and I have windows 10 1903 running as host, and this error started happening since I installed the VM, I'll be working normally and all things going well, ...
pers0n's user avatar
  • 21
2 votes
0 answers
5k views

Why does Windows allow you to read and write another process memory?

I found that many debuggers (like x64dbg) or hex viewers (HxD) allow you to access and modify memory of another process. It works without any asking for permission. I even wrote a simple program that ...
Ahoj Lidi's user avatar
2 votes
0 answers
2k views

systemctl hibernate gives error not enough swap space for hibernation although the swap space in use is four times the RAM size

I already know that in Linux systems systemctl hibernate will not allow hibernation if there is not enough swap space for hibernation. But in my case the swap space was set to 32 GiB while the RAM ...
Chirantan Nath's user avatar
2 votes
1 answer
369 views

What is the history behind `ulimit -m` / RLIMIT_RSS not working?

According to man setrlimit (which is what man ulimit directs me to), RLIMIT_RSS Specifies the limit (in bytes) of the process's resident set (the number of virtual pages resident in RAM). ...
Jason Gross's user avatar
2 votes
0 answers
2k views

How do I view "sub process" specific memory info in Task Manager (Windows 10)

On some machines, I am able to view the memory consumption of individual "sub processes" of an app in Task manager, like so with Google Chrome: On other machines, I do not get "sub process" specific ...
jacheson's user avatar
  • 121
2 votes
0 answers
898 views

linux kernel virtual space , lowmem , highmem , RAM size

I need some help understanding the exact relations between the linux kernel virtual space , specifically LOWMEM area , and the available RAM size as seen by the kernel. after reading this article: ...
hutcruchi's user avatar
  • 121
2 votes
0 answers
987 views

Immediately Allocate All RAM to Virtual Machine at Power-On

Is there a setting that I can manually add to a VMWare .vmx file to force it to allocate all of the RAM assigned to a VM immediately when the VM is first powered on? I know it is usually best to let ...
James L.'s user avatar
  • 402
2 votes
0 answers
806 views

Missing memory in linux ubuntu 16.04 system

I've been struggling with this problem for quite some time and am completely out of ideas. I have 8GB memory installed, but ubuntu sees only 3.2 GB. Hardware: Mother Board Information Intel ...
user1003001's user avatar
2 votes
0 answers
603 views

Showing real memory used on Windows 10

I bought a lenovo ideapad 330s laptop. It has 4GB of ram. When I turn on the computer after I bought it, I could play call of dutty black-ops 2. It stopped working then I gave it to the seller to fix ...
user3502626's user avatar
2 votes
0 answers
238 views

How do I stop my linux desktop from freezing when I run out of RAM?

I'm running Ubuntu 18.04 with 16GB of RAM. Under normal use, my system uses about 4GB of RAM, and 0 swap (1GB configured). Every couple of days, my Firefox hits a bug and starts leaking memory ...
Prashanth Chandra's user avatar
2 votes
0 answers
55 views

Does a Page Mode SRAM similar to Page Mode DRAM exist?

Page Mode DRAM is essentially doing multiple column accesses per a single row access. This seems pretty logical to me, but I couldn't find anything similar written about SRAM. Does standard SRAM ...
Joe K's user avatar
  • 21
2 votes
0 answers
346 views

Not able to max out RAM in Dell inspiron 5370

The laptop came with a single DDR4 RAM (2400 MHz)module of 8 GB installed in slot 1. The other slot was empty. Lets call these slots S1 and S2 respectively. I bought two identical 2400 MHz DDR4 ...
SDAdam's user avatar
  • 21
2 votes
0 answers
909 views

Memory mapped register, how it actually works

When the OS defines a memory map, e.g. APIC is mapped to a certain address, when a program issues assembly STA address value, how is it insured that the DDR controller rejects this address and how ...
John Smith's user avatar
2 votes
0 answers
733 views

slab memory is too large

I'm running the server for test WAS in container. Server has 40 cpu cores and 96GB Memoy. I ran WAS in containers several days and find out too large slab memory size. So stopped all WAS. But Slab isn'...
Supsupi's user avatar
  • 41
2 votes
0 answers
545 views

How to setup a cgconfig.conf file to limit the cpu for all processes by a username to 10% of CPU?

For about 5 years now I have been wanting to limit the cpu of a user in CentOS(6) - without using cloudlinux. So far, still have not been able to get an answer to this. cgroups seems to be a solution....
asegfvawer's user avatar
2 votes
0 answers
45 views

RAM not showing

I've had this problem for over a month now, and I keep trying solutions posted by people on every site I've found, but I still can not figure out what is "using" my RAM. I have 24GB RAM installed, ...
Orangutan's user avatar
  • 121
2 votes
0 answers
35 views

Free -m and free -k display same quantities

When running the commands free -m and free -k, they display the same quantity of memory. Furthermore, free --mega and free --kilo display the expected quantities (the correct ones). What might be ...
Fidle's user avatar
  • 46
2 votes
0 answers
721 views

Windows 7 - Explorer.exe constantly building up memory but not releasing it

I have been trying to figure out the best way to solve this issue with no luck. We work with a lot of video files, and they are encoded into a folder to be accessed later. I clear out this folder on ...
PKenne21's user avatar
2 votes
0 answers
1k views

How to dump memory of virtual machine running in linux?

I have a windows virtual machine installed using qemu. I want to know how can I dump the entire ram memory of guest system from host system like bin2dmp do in windows. I have read here that it is ...
shubham0d's user avatar
2 votes
0 answers
961 views

Java application response is slow if Linux cache consumes entire system free memory

I am running two Java-based application on my server with 32GB of RAM,16 core CPU. Apart from this I just have MySQL community server 5.6.16. The Java applications are assigned 10 GB of overall memory....
Suyash Jain's user avatar
2 votes
0 answers
1k views

Backup and restore RAM

Is it possible to backup and restore RAM, either as a whole or on a per-application basis? It would need to backup this to disk and have the option to restore this at a later date. In essence, such ...
LPChip's user avatar
  • 61.1k
2 votes
0 answers
5k views

What is the meaning of 11-B2 in RAM specification (Samsung 2GB 1Rx8 PC3-10600S-9-10-B2)

Please read these details first I'm planning to upgrade my Laptop RAM. This RAM is currently in my Laptop: Nanya 2GB 1Rx8 PC3 10600S-9-10-B2 1333 mhz The RAM I'm planning to buy: Samsung 2GB 1Rx8 ...
Kamal Mrock's user avatar
2 votes
0 answers
151 views

On Mac OS X, why is firefox allocating memory, and not releasing it when its no longer needed?

I see this in other browsers, too, but I don't like those so I don't care. Why does Firefox's memory usage (as shown in the Activity Monitor under "Memory" in the "Memory" tab) keep growing, even ...
GTbrewer's user avatar
2 votes
0 answers
335 views

How do channels and rank interact if using pair-matched RDIMMs?

So, my Supermicro X10 R3 board has a single CPU with 8 DDR4 DIMM slots. When fully loaded it has 2 DIMM pairs in each channel x 4 channels (I think). I always use only matched pairs of DIMMs. The ...
Stilez's user avatar
  • 1,685
2 votes
0 answers
2k views

VirtualBox Ubuntu lags at 4K resolution on powerful PC

I'm running the latest Ubuntu on Oracle VirtualBox. When I keep the window at default small size, it runs almost as smoothly as the Windows 10 host. However, when I maximize the window, the lag ...
Tuomas Toivonen's user avatar
2 votes
0 answers
438 views

Run out of virtual memory after added to triple physical RAM and change SQL Server memory option?

Recently, we added some physical RAM to our server which running SQL Server 2008 R2 instance, the total memory was changed from 64GB to 192GB. And we tuned the memory option of SQL Server by changing ...
Steven Wang's user avatar
2 votes
0 answers
463 views

Hardware Reserved 4GB (DIMM Slot 1B)

So recently my task manager started showing that only 12GB of my 16GB DDR3 RAM in Dual Channel was available stating "Hardware Reserved 4.0 GB" These are the steps I've currently taken to attempt to ...
DMck's user avatar
  • 21
2 votes
0 answers
743 views

Does clamd scan memory during startup and/or restart?

I have an Ubuntu 14.04 using ClamAV to scan some files manually as part of some software. I have clamd running all the time and am using clamdscan to let it scan my files. Scanning the files is pretty ...
Thorsten Schöning's user avatar
2 votes
0 answers
1k views

Memory usage growing when using ffmpeg. Is this expected?

I am using ffmpeg record a video from a webcam, but the memory usage is very high, and keeps increasing with video length. For example, I use an embedded device with 64 MB of RAM, and when I ...
Guilherme Costa's user avatar
2 votes
0 answers
701 views

Why can't Linux kernel allocate order:0 memory when memory is highly fragmented?

When troubleshooting a recent kernel panic, there was a page allocation failure asking for an order:0 page. The memory is highly fragmented, and shows only order:0 memory free (422*4kb actually). Why ...
Chad Jessup's user avatar
2 votes
0 answers
658 views

Automatically move data from swap to ram once enough memory is free

Yes I know there are already questions that ask the same thing. But none of the answers actually answer the question. One common answer is "you don't need to be concerned aboput it, because swap ...
barteks2x's user avatar
  • 121
2 votes
0 answers
55 views

Keep Getting memory full Windows 8.1

I have reset my laptop to factory settings a couple of times since 2013 trying to make computer faster. This last time I did because memory keeps saying full and shutting me down. I have taken all ...
quetta007's user avatar
2 votes
0 answers
780 views

How to determine maximum total rank for a motherboard (Asus P5G41-M SI)

I'm trying to max out my motherboard's memory by installing 4 x 2GB identical memory sticks. It works fine with two sticks, but won't post when I add the other two. (I tried swapping the sticks around ...
buttonsrtoys's user avatar
2 votes
1 answer
551 views

Out Of Memory when plenty available

My computer often runs out of memory, even when there is a lot of memory free as shown by the Task Manager: (Purely for reference, the labels in English: ) I have no clue how to find out what is ...
user1140560's user avatar
2 votes
0 answers
3k views

Process Explorer (sysinternals), save lines/graphs as txt?

I'm using the "Process Explorer" from sysinternals to monitor the memory consumption of a specific process over time. This is quite helpful for the first step. For I a deeper analysis I would like to ...
user37552's user avatar
2 votes
0 answers
703 views

No POST/boot with RAM installed

This PC I am troubleshooting was built in 2009/10, with some HDD&SSD swaps since then. everything else still from back then. A month ago it hang up and had to be shut off manually. Didn't boot ...
4004's user avatar
  • 21
2 votes
0 answers
1k views

How to reduce unmovable and and unevictable pages in linux

We have BBB based custom board and it has 256MB RAM and 4GB of eMMC, We are seeing fragmentation issue on it. And as a part of analysis I wanted understand, what are unmovable( from /proc/pagetypeinfo)...
ART's user avatar
  • 385
2 votes
2 answers
2k views

Changing the shared memory size of a container instance in Amazon ECS

As much as I've found container instances run with a default 64MB of shared memory (shm) and it is possible to change that amount using the --shm-size argument with the docker run command. Now I want ...
Mortie's user avatar
  • 490
2 votes
1 answer
356 views

Diagnosing strange lag/catchup or freezing behaviors on my new Laptop

I've been noticing strange freezes, lags, and crashes, although not too often. Here's my setup: Dell inspiron i7559, as purchased: Intel i7 6700HQ 2.6 GHz processor (officially goes up past 3 on ...
Menasheh's user avatar
  • 190
2 votes
0 answers
270 views

My laptop doesn't boot when I add a new RAM

Here's the thing : I recently cleaned my laptop completely. And during my cleaning, I disassembled my CPU and then put it back (I wanted to see how it worked). Then I put everything back in (...
user avatar
2 votes
1 answer
1k views

My new motherboard Asus Z10PE-D16 WS doesn't start

I have purchased the following components : Asus Z10PE-D16 WS 2 CPU : Intel Xeon E5-2658 v3 2 Fans : Noctua NH-U12S Power Supply : EVGA SuperNOVA 1300W GOLD Ram : Kingston KVR21R15D4K4/64 RAM 64Go ...
Tyranitar's user avatar
2 votes
0 answers
1k views

How can I expand Bluestacks memory in Windows 10?

My computer recently updated to Windows 10. Since then, Bluestacks (which I use mainly to access Whatsapp) has a very limited amount of space, and when I try to download pictures/videos it tells me ...
stuck's user avatar
  • 21
2 votes
0 answers
70 views

When I run this process, it pushes all others out of RAM. Is there any way to prevent this?

I like to leave my browser, email, and other applications running while I'm gaming. Now that I'm running a 64-bit version of Windows with 16 GB of RAM, I can do this easily, and even switch between a ...
boot13's user avatar
  • 5,859
2 votes
1 answer
153 views

Memory Update for an old laptop

I have an old HP Pavilion dv6 Series (model dv6-1140ej). It has 2GB of RAM in 2 sticks. According to the specs, it supports 400Mhz DDR2 memory. I would like to increase the amount of RAM I have. ...
divur1's user avatar
  • 21
2 votes
0 answers
648 views

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 ./...
Remi.b's user avatar
  • 2,641
2 votes
0 answers
4k views

Interpreting results of windows memory diagnostics

I've been having some troubles with my computer lately, and tonight ran the windows memory diagnostic. I ran the extended test. It completed not showing any errors during the run, however I don't ...
John Judd's user avatar
  • 159

1 2
3
4 5
41