The tag has no usage guidance.

learn more… | top users | synonyms

1
vote
2answers
59 views

Estimate RAM usage information of an embedded device

I'm monitoring the performance of an ARM-based embedded device which runs poky linux distro (from Yocto project) which contains OpenEmbedded build system. I need to get the MHz (CPU cycles) ...
0
votes
2answers
27 views

How to find processes which uses the most RAM in last X seconds?

Could you please help me to sort this out? I'm trying to write a bash script which will monitor ram usage (not only ram but cpu and network as well) and show me 3 processes which use the most ram in ...
0
votes
2answers
43 views

Ubuntu stops responding to any action

I use ubuntu and found it really frustrating that it stops working really frequently. The circumstances are: Opened Android Studio WITHOUT any emulators (I mean device emulator, I use real devices ...
2
votes
1answer
63 views

If tmpfs has bigger size than your RAM, how much RAM does it use? Are applications privileged for RAM?

If the size configured for tmpfs is bigger than the size of RAM, and there is a lot of stuff stored there in the tmpfs, how is the amount of RAM available to applications determined? If applications ...
2
votes
1answer
288 views

Second RAM module is not shown in `free` in Manjaro

I have two RAM modules (8 GB each) but there is only one shown in free. I hope that following info will help you to locate the problem and find a solution: $ uname -srvmo Linux 3.10.27-1-MANJARO #1 ...
2
votes
1answer
641 views

Issues with grub badram

I have a stick of bad memory (the computer randomly segfaults an it gives memtest86+ errors, picture of output at bottom). As I would like this computer to be working while I work on getting new ram, ...
1
vote
1answer
306 views

Compress memory on low Ram VM

Is there a way to get out more out of your limited Ram on a VM? I have a VM running on a cloud hoster and try to optimize a quite low on RAM mashine. I heard, there is a way to compress parts in the ...
0
votes
1answer
268 views

High Memory Usage in my fresh install of Manjaro KDE

I am a normal desktop user. Previously using Linux Lite 2.6. Read about Manjaro and I really like the KDE. So Yesterday I tried to install it and I was struggling with issues. After installation it ...
0
votes
1answer
53 views

Attaching a phram mtd0 device to gadget serial mass storage

I'm using a Atmel SAMA5D3, I have created two phram devices /dev/mtd0 and /dev/mtd1 I am trying to attach them to a gadget mass storage module. insmod g_acm_ms.ko file=/dev/mtd0,/dev/mtd1 The ...
0
votes
1answer
27 views

Use NVIDIA graphic card as regular resource

I don't use my graphic card anymore, but it is still laying there, idle. Is there a way I can turn it back on and use it just a regular, additional CPU/RAM for my laptop?
0
votes
1answer
230 views

Arch linux weird ram issues

I installed Arch linux (I have reinstalled it a couple of times, actually, in the past 3 months, just to get to know it better). My problem is, that I have 4GB RAM, and as soon as my free RAM hits ...
0
votes
1answer
116 views

Take copy of RAM

How trivial is it to take a copy of the current state of a Live Linux Distro's RAM storage? I have had situations where it might be useful to debug what caused a problem with the OS, and if I had ...
0
votes
1answer
205 views

Crash analysis and 4 levels of page table

I am having xen 3.4.2 running with 15 vm (pv+hvm) on a host with 256 Gb RAM and 96 core CPU. But recently my host crashed on debug log its showing translating ffff83183fcb0000 with CR3 100ae42000 ...
-1
votes
1answer
51 views

Monitor Cpu & Ram Uasge Via Web

Sorry about that newbie question. But does anyone know how to make or where to find a script that will monitor CPU and ram usage, so i will be able to use it at my admin panel on web? I'm running a ...
3
votes
0answers
26 views

Does Linux perform buffering twice when hosting a VM?

I ran a KVM VM on my CentOS host and found that after performing a HDD-intensive operation, it used all of the host's memory I assigned to it. However, free on the guest suggests that the memory's ...
3
votes
0answers
336 views

My SMDK2416 (for s3c2416) kernel works on 64MRAM but crashed on 128M

I'm currently working on embedded arm linux with smdk2416(s3c2416) The kernel is working on the 64MRAM. Recently, I need to increase the RAM from 64M to 128MB with 64MB on bank0 and 64MB on bank1. ...
2
votes
0answers
79 views

Debian x86_64 and 4 GB RAM

I bought additional 2GB of RAM and inserted it into my laptop. The BIOS sees 4GB of RAM but Linux sees only 3GB. Output of free -m: total used free shared buffers ...
2
votes
0answers
83 views

How can I let high priority processes continue when low priority processes are causing free memory to be low

Ok I'm not sure if this is the correct place to post this. It is more of a 'why not' question than a 'how to' one (assumption is that it isn't/can't be done). Why don't we allow RAM to be partitioned ...
2
votes
0answers
205 views

Swap on video ram in a VM

I have a very small VM running in a cloud with only 512 MB ram. I read, it is possible to use the video card as swap as descriped here: Graphics cards contain a lot of very fast RAM, typically ...
2
votes
0answers
524 views

Odd Inode/Ram cache drops happening in CentOS

I run a CentOS 5.7 machine (64bit) with 24GB ram and 4x SAS drives in RAID10 setup. This machine runs nginx/1.0.10, php-fpm & xcache. About a month back the RAM usage of this machine has changed. ...
1
vote
0answers
37 views

Does Linux maintain a system RAM high water mark?

I know there is VmHWM entry in each process's /proc/[PID]/status file, however is there an aggregate of this that contains the high water mark for the system? I understand the free command give the ...
1
vote
0answers
52 views

htop showing less memory usage

I'm currently trying to benchmark performance improvements when using a RAM disk. So I've been giving my VM 24 of the total 32 GB RAM, and created a 16GB RAM Disk inside. It's beeing used, ...
1
vote
0answers
131 views

The command “dmidecode -t 17 | grep Size” showing in CentOS release 6.5 (Final).

Recently I upgraded the system(Dell 720) RAM 8 to 16 GB(4*2[new ram]), but it is still showing old amount of RAM(ie 8GB). Please help me, If I need to install driver(module). Kindly Let me know all ...
1
vote
0answers
298 views

Booting Linux from RAM

I want to find a cross-distro solution for setting linux up to boot from RAM. What this involves in essence would be copying an existing installation of linux one way or another over to the RAM (to ...
1
vote
0answers
189 views

Xeon Phi swap from host's tmpfs

I want to use swap on Xeon Phi (mic0) using RAM from the host On the host: # free -m total used free shared buffers cached Mem: 129022 60312 ...
1
vote
0answers
271 views

weird problem with 64 bit install and memory

I have a laptop with 8gb of RAM in two 4Gb slots, the processor is 64 bit compatible. However when I try to install 64 bit version of Linux (I tried, mint, arch, manjaro), it refuses to load the ...
1
vote
0answers
32 views

Amount of memory transfer on a running Linux

Can I determinate the amount of RAM exchange (between the CPU and the RAM) on a running Linux system? I'm not looking for the max RAM speed (then memtest would be valid answer). I'm looking for the ...
0
votes
0answers
8 views

How to make Live CD store data in hard drive?

How can I configure a Live CD operating system (Specifically Lubuntu) to use the hard drive as its main storage, not storage simulated in the RAM?
0
votes
0answers
10 views

What is the criteria to set highmem parameter?

I've read about highmem parameter of Linux kernel. AFAIK, that parameter only makes sense on 32-bit machines. What is not clear enough for me is the criteria to set it. Please could you provide an ...