Random-access memory (RAM) is a form of computer data storage. Today, it takes the form of integrated circuits that allow stored data to be accessed in any order with a worst case performance of constant time.

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2
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1answer
50 views

My memory is full but processes list is empty

PROBLEM My memory is full but the processes list is empty of heavy programs! Usage: Total memory is 4GB but only 400MB is free: Monitor with htop: When sorting by %MEM -> heavy programs ...
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2answers
68 views

Ubuntu 15.10 64-bit is not working very well in my PC

> System: Kernel: 4.2.0-32-generic x86_64 (64 bit) Desktop: Unity 7.3.3 Distro: Ubuntu 15.10 wily CPU: Single core Intel Pentium 4 (-HT-) cache: 1024 KB clock ...
0
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2answers
78 views

Ubuntu 32bit or 64bit on a laptop with 4gb ram? [closed]

My laptop has 4Gb of ram and the processor can suport 64bit. What should I install, 32bit or 64bit? And why? As far as I know the 32bit version will use less ram but at max 4gb of ram.
0
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0answers
125 views

How can I free my GPU memory in Ubuntu 14.04?

How can I free my gpu memory as much as possible? Currently there seems 400+ MB of GPU ram to be always occupied! How can I free these ? Wed Feb 24 21:48:33 2016 ...
0
votes
1answer
29 views

Graphic elments fall apart after install new RAM

I have installed a new RAM module and after that graphics elements in Unity are falling apart. (See attachment.) In some applications this problem appear, but non in others (ad.: in Chrome). I ran ...
0
votes
0answers
15 views

Lock application data to swap

Is it possible to lock the app data in swap? App data: it means the data loaded by operating system to the ram to run it. I am using Ubuntu 15.10 and my laptop has only 2GB ram. I am thinking that ...
-1
votes
2answers
74 views

Which system folders can I mount to RAM drive safely?

I recently made a full installation of Ubuntu 15.10 to a USB drive. In order to make it faster, using RAM, I made /tmp folder to mount on RAM on boot, by adding this line to fstab: tmpfs /tmp tmpfs ...
0
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0answers
14 views

How to find the first device address of request using blktrace?

I have traces of running an "f2fs" on an usb-drive. I would like to use them as inputs to DiskSim. DiskSim requires the first block number that has been traced. Is there a way I can find that by ...
3
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0answers
88 views

Ubuntu 14.04 64 bits - Only half of the RAM is recognized

I have 8 GBs of RAM (2 4 GBs memory sticks) in my computer. They are recognized by Windows 10, the "memtests" and the BIOS, but Ubuntu doesn't show more than 3696 MBs. I already tried several ...
1
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2answers
114 views

High CPU load, low core usage, (ECC) memory error in kernel

I am having a super weird behavior ... The CPU load of my computer goes through the roof (>4 on a 8core machine) but there is no process that is taking much CPU (see attached image) Though the 8 core ...
1
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0answers
42 views

Hard freezes when RAM is exceeding

I have 8GB RAM, when memory is exceeded (chrome + vbox + something else): hard mouse freezes permanently lit SSD led in 90% of cases I can't login in tty, system without any response, necessary to ...
0
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0answers
32 views

Drop cache pages and memory (cleaning the cache) as normal user

Some times I need to clean the system cache by doing the steps below: sync su echo 3 > /proc/sys/vm/drop_caches as you can see, I need root privileges for this purpose. Is there any way to do ...
11
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1answer
539 views

Ubuntu settings after adding additional RAM

My system has 3.8 GB of ram. My system allows 8 GB of ram. If I insert another memory chip of 4 GB, do I have to make any other changes in OS setting etc?
0
votes
0answers
11 views

What is the max supported RAM by my system hardware? [duplicate]

I ran dmidecode command and it gave me following output: # dmidecode 2.12 SMBIOS 2.4 present. Handle 0x1000, DMI type 16, 15 bytes Physical Memory Array Location: System Board Or Motherboard ...
0
votes
2answers
216 views

Out of Memory Issue

I am running Ubuntu 14.04LTS on a Dell PowerEdge R730 with 32 GB of RAM and an Nvidia K80 GPU.. I have a python script that runs for a long time, but really just makes a bunch of relatively ...
1
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1answer
237 views

Ubuntu 15.10 - high ram usage

I am writing because I have no idea what going on with my favourite os, Ubuntu 15.10 with the kde desktop. The problem affect ram usage in normal work (chromium/firefox browser with few cards and ...
1
vote
1answer
41 views

Abnormal usage for memory

These days, my linux VPS is very slow, for that I've installed htop package using apt-get to see what is happening to my server. When I opened htop, I see that my server is using approximatively 700 ...
1
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0answers
44 views

Ubuntu 14.04 installation stops when copying files

I have the following system config i5 processor, 4gb (2+2) ram, 1gb graphics card, 500gb hard disk. I tried adding another 4gb ram to my system. So I added the newly bought 4gb ram into my pc and ...
0
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3answers
232 views

reinstall of OS after decreasing memory

Do I need to reinstall OS after decreasing memory (RAM)? Originally I had 8GB while now only 4GB. OS: Ubuntu 14.04.3 LTS Linux p6-2315el 3.13.0-76-generic #120-Ubuntu SMP Mon Jan 18 15:59:10 UTC 2016 ...
1
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0answers
197 views

Failed to alloc mem for ROM

So recently, I've bought the HP Pavilion x2 detachable. It came with Windows 10 but I wanted to install Ubuntu on it. I tried to install Ubuntu 15.10 but every time I tried to do that, the computer ...
1
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0answers
111 views

MySQL gradually taking up more and more memory

Just to start with, I have read the following threads and they do not help: Optimising MySQL settings - mysqld running out of memory MySQL Server keep shutting down ...
0
votes
0answers
51 views

System freezes after upgrading to 32 GB RAM

I have recently upgraded my Toshiba Tecra W50-A-114 from 16 to 32 GB RAM (added 2x 8 GB modules of Kingston KTT-S3CL/8G that is certified to use with my laptop). I did clean installation of 64 bit ...
0
votes
1answer
7 views

Kubuntu, Flex mode ram and intel graphics

I'm running Kubuntu 15.10 and I have a Gigabyte GA-G41M-Combo. I'm using the integrated Intel graphics. I'm trying to use a 4Gb ram stick and a 2Gb (different speeds). Both memories work fine by ...
0
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0answers
43 views

Memory and swap full from Rails App on EC2 Ubuntu Apache Passenger

I am not familiar with htop or ubuntu processes but my app's memory is full almost immediately after rebooting. Each of the rails processes seem to be taking up 25% of my memory. I recently upgraded ...
0
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0answers
49 views

Ubuntu Memory Low

When I SSH in, my memory usage is at57%. It looks like I have very little RAM available but I don't think that was the case before... ubuntu:/etc/projects/myapp$ free -h total ...
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0answers
17 views

Does Ubuntu have a Windows SpeedBoost feature?

My computer only has 1GB of ram and I want to run a Minecraft Server which requires more ram. Can I use something like Windows SpeedBoost?
0
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0answers
37 views

How to extend the virtual memory in Linux?

I have a 1GB ram pc, is there a way to extend virtual memory? I cannot do anything because my pc is moving horribly slow. I am planning on buying a raspberry pi b+ and really need it fast for a ...
0
votes
0answers
10 views

Erase swap memory storage when app load decreased

I have enough RAM for most purposes, but sometimes I inevitably get carried away with the number of apps and tabs I have open, pushing short-term memory storage into swap. I'll then do an inventory ...
1
vote
1answer
103 views

Linux overwriting RAM with zeroes on free()

I was just wondering if it is possible to tell Linux/Ubuntu to overwrite freed memory with zeroes before letting the next application allocate it? If not, why isn't this possible? I know that ...
0
votes
1answer
77 views

Unable to set default value for swappiness

I have an Ubuntu 15.04 64bit with 4GB RAM. I do not have a separate swap partition, but a swapfile of 8GB. The system recognizes the swap. I have tried to set swappiness to 15 by adding it to the ...
0
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0answers
24 views

Does Ubuntu write to certain memory addresses?

I have some options in BIOS setup that allow caching video BIOS, system BIOS and video RAM to C0000h-C7FFFh, F0000h-FFFFFh and A0000h-AFFFFh, respectively. Does Ubuntu write to these locations? (Doing ...
1
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1answer
5k views

Performance Ubuntu 14.04.3 LTS vs 15.10

I am running now on Windows 7, but i am thinking about going to Linux (Ubuntu), i have experiences only with debian (VPS) yet :) But i like Linux, so i would like to have Ubuntu as my primary desktop ...
0
votes
1answer
121 views

Why is Lubuntu slower than Kubuntu (in the same machine)?

I have a FS Amilo laptop with 2GB of RAM. I have Kubuntu, Lubuntu, and Puppy Linux installed on it. I chose Lubuntu for speed, but my experience isn't as smooth as I expected. The desktop ...
0
votes
1answer
50 views

Upgraded from 3gb ram to 4gb ram, ubuntu 15 amd64 will not load and keeps rebooting, unbuntu amd64 live will do the same

I have a Samsung X360 laptop. It comes with 3gb ram installed. I have ubuntu 15 64bit installed. I upgraded the 1gb stick to a 2gb stick. Upgrading from 3gb ram to 4gb ram, ubuntu 15 amd64 will not ...
0
votes
0answers
50 views

Why is Ubuntu 15.10 x64 Server EDAC giving a slot error for 48Gb ram (x12 2Gb Slots)

I have been running a homelab on a supermicro server that has a total of 48Gb of ram on 12 2Gb slots and I have been getting a repetitive error from EDAC every few seconds. EDAC MC0: INTERNAL ...
0
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0answers
64 views

Changing Shared Memory in Ubuntu

So I just received my i7-4790k and installed it into a MSI z97 Gaming 5 motherboard. However, the shared memory is restricted to 512MB, and it seems to be possible to increase the amount in Windows, ...
0
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0answers
271 views

Chrome/chromium very slow after idle in ubuntu 15.10

I have this pretty strange problem with both chrome and chromium browser. While working with them they are perfectly fine and fast browsers, but if I leave my PC idle for some time like 10+ minutes ...
2
votes
0answers
50 views

Edit Aufs Tmpfs partition size

I followed this instruction https://help.ubuntu.com/community/aufsRootFileSystemOnUsbFlash to create a aufs RAMDISK for my xubuntu. It creates a 512MB Filesystem. SO, HOW CAN I CHANGE THAT SIZE FOR ...
0
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0answers
89 views

Ubuntu showing less ram than before after fresh install

I had Ubuntu 15.04 installed but its support ends in January. And I don't have that much bandwidth and money to do a upgrade every 9 months so I turned back to 14.04 and upgraded it to 14.04.3. But I ...
0
votes
0answers
107 views

Kswapd0 using 100% of CPU

I've got a mini server running (L)ubuntu 14.04.3, kernel 3.4.39. Every once in a while, the process kswapd0 will use 100% of my CPU power, even though I only use about ~20% of my RAM at that time. ...
0
votes
1answer
112 views

Increase ext4 partition size by decreasing Swap memory size in linux [duplicate]

I was a newbie while installing linux mint 17.2 in my laptop. So I allocated more than 20GB for my swap memory and 30Gb for ext4 partition. Now only I realized that swap memory is using instead of RAM ...
0
votes
0answers
106 views

kernel panic not syncing, after RAM upgrade

I have a motherboard Asus Rampage IV Extreme, processor Intel 4930k 6 cores, and 32Gb RAM Corsair Vengeance CL9 1866Mhz. I upgraded to 64Gb RAM Corsair Vengeance CL9 1866Mhz. Using RAM at 1333Mhz ...
0
votes
0answers
87 views

Memory corruption detected on Ubuntu 14.04

I have been using Ubuntu 14.04 for last couple weeks (may be month). Today, I have updated a large chunk of softwares and installed a new ram module (4GB extra). I have installed Java7 and 8 and ...
5
votes
2answers
3k views

fdisk -l shows 16 ram disks /dev/ram0 … /ram15

Ever since I upgraded to 15.10, fdisk -l reports 16 ram disks (/dev/ram0 ... /dev/ram15). I'm a bit unsure what those are needed for. Is it safe to delete them? If not, how can I get rid of that fdisk ...
0
votes
0answers
39 views

Memory RAM upgrade on Dell 15 3521 running xubuntu

I got a RAM module SODIMM with 8GB DDR3L 2133 Mhz and I upgrade my laptop which had a DDR3 6GB RAM at 1600 Mhz speed (1 module with 2GB and 1 with 4GB), now I have 12GB in my laptop, my question is: ...
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votes
1answer
37 views

how free memory showing as 174G, even i dont have that much RAM [closed]

xxx@xxxl:~$ df -h Filesystem Size Used Avail Use% Mounted on /dev/sda1 228G 42G 174G 20% / what is difference between Normal G and this 173G ? Is that all free memory ...
0
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5answers
95 views

How can I know how much free ram i have left on Lubuntu?

I don't know how to see a graphical representation of how much ram i have left.
0
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0answers
62 views

Performance penalties of using zram on a high-memory machine

I've heard zRAM does wonders in low-memory machines, like allowing to have 20 tabs open in a browser window without swapping or OOM - all that even without noticing that zram has kicked in! I am ...
0
votes
0answers
19 views

Can I install Ubuntu touch on any android phone which got 1B RAM and 4GB internal memory? [duplicate]

Currently I'm using Lava IRIS 504q mobile running about 4.2 Jelly Bean... It has got 1GB RAM and 4GB internal storage out of which nearly 1GB memory is reserved for apps.... Memory is expandable up to ...
0
votes
1answer
798 views

Increase dedicated video memory on Intel HD graphics [closed]

I was going to try and run EVE Online with PlayOnLinux on my Acer Aspire V3-371-79XR. The laptop has Intel HD Graphics 5500 inside, an i7 core and 8 GiB of DDR3 ram. I checked the dedicated video ...