0
votes
1answer
25 views

Hyper-V dynamic ram not working with Debian

I've a Windows Server 2012 R2 based Hyper-V host with Windows Server 2012 R2 guest VMs and also Debian 7.6 based VMs. The dynamic RAM is working on Windows guests fine. But on Linux its not and the VM ...
1
vote
3answers
46 views

Debug unstable Apache server under Debian

Since yesterday my Apache server that runs on a Debian machine runs very unstable. Sometiems my websites load and sometimes not. I think it has to do with the memory since my Apache log is full of ...
1
vote
1answer
52 views

No buffers in memory. What it means?

This is a memory stats from my VPS (OpenVZ). $ free -m total used free shared buffers cached Mem: 800 405 394 0 0 405 -/+ ...
0
votes
1answer
63 views

Debian 6 - Linux 2.6.32-5-amd64 - Samba server with 32GB swap - how should i reuse it?

today i have the mission to tuning a Debian samba file server, previously i never ever touched it. RAM = 16GB SWAP = 32GB first of i ran a parted -l and a free -h and i saw one 3TB hdd: /dev/sda ...
2
votes
0answers
321 views

How can I use huge pages and libhugetlbfs on a Debian EC2 PVM instance?

On my local machine (i7 9200) running Debian Wheezy amd64 I can get some significant speedups on some "big data"/HPC type stuff by: Following the instructions here to reserve some RAM for huge pages ...
0
votes
2answers
485 views

Debian error : edac mc0 internal error

I have a problem on last Debian Server. I have this error written every seconds on my screen : EDAC MC0: INTERNAL ERROR: csrow value is out of range (7 >= 4) edac-utils give that : mc0: 0 ...
1
vote
1answer
838 views

How to find out who used all RAM (UPDATED)?

Sometimes I find that 100% of my small Debian machine's RAM is used, but I can't figure out how to find this leak: top show that all memory is used, but I can't find any process that consumed this ...
-1
votes
2answers
60 views

Memory pegged by unknown process [duplicate]

I have some strange output from the top command on my web server. Output is ordered by %MEM: top - 13:57:43 up 13 days, 21:58, 1 user, load average: 0.00, 0.00, 0.00 Tasks: 118 total, 1 running, ...
3
votes
1answer
755 views

Why would nscd use a huge amount of RAM?

My server seized up. It was virtually unusable. This seemed like a likely culprit: root 1037 0.0 92.6 1455696 958368 ? Ssl 2012 3:57 /usr/sbin/nscd That's 92% RAM. I killed it to get ...
1
vote
0answers
480 views

udisks-daemon eating up all my memory

I'm operating a little storage server on debian, over the past months I've noticed the process udisks-daemon eating up almost all available memory. Is this just really aggressive caching or a memory ...
1
vote
1answer
160 views

How to change memory for DomU runtime

I have a xen server with xen-4.1.3, linux-image-3.2.0-3-amd64, debian squeeze and 16Gb of RAM. The domain-0 has 1Gb of ram, the rest of memory belongs to the hypervisor. I want to start a guest domain ...
0
votes
1answer
73 views

Rule of thumb in RAM estimate for static pages? [duplicate]

Possible Duplicate: How do you do Load Testing and Capacity Planning for Web Sites I've seen tutorials saying they can run decent websites on 64MB RAM (Debian/Lighttpd/PHP/MySQL) however ...
0
votes
1answer
684 views

My server is running out of memory, despite having all swap free

I am using Debian 6 (Squeeze). The server has 4gb of memory in it, and 8gb of swap. I'm starting to get memory alloc errors at high application load times, but from top command: Mem: 4055944k ...
-1
votes
2answers
549 views

Concerning memory usage statistics on debian squeeze

So I have a server, and I'm being reported different/strage memory from several locations and I'm having trouble understanding what it all means. Take this for example: root@****:~# free -m ...
1
vote
2answers
3k views

server running out of memory

the server is running out of memory and get to the point where it starts killing the process, the total PSS memory(actual memory used from the Resident memory) consumed by top using applications is ...
2
votes
1answer
286 views

How do I configure Debian to use available physical memory to speed up Samba connections?

I want to maximize the speed of the connections by using more of the available RAM that we have in our server (there's 4GB worth). What files would I need to edit, what directives would I need to add, ...
1
vote
1answer
496 views

Debian virtual memory reaching limit

As a relative newbie to systems, I inherited a Debian server and I've noticed that virtual memory is very high (around 95%!). The server has been running slow for around 6 months, and I was wondering ...
1
vote
2answers
2k views

MySQL consuming nearly all memory in cache? [duplicate]

I am running a server with 24G of RAM. The only thing running here is a MySQL server configured as Master. When I check the memory via free -m I am getting this: total used ...
0
votes
1answer
136 views

Debian virt/res/shr and cpu time limiting

Servers have multiple users running multiple programs, some of which don't seem to behave and will eat up RAM like there is no tomorrow, for example: PID USER PR NI VIRT RES SHR S %CPU ...
1
vote
2answers
685 views

Memory usage on debian webserver keeps going up [duplicate]

my webserver is running apache 1.3.x for a PHP application, along with mysql on the same machine. Most of the time it runs fine, CPU usage still with nice margin, but somehow memory usage keeps ...
1
vote
3answers
422 views

monitoring when a process starts using too much memory

I have a Debian server where some processes going rogue from time to time and start consuming too much memory. How I could monitor this at process level so I can set an alarm? Currently I monitor when ...
0
votes
1answer
733 views

Xen Kernel on Debian Squeeze making 1GB memory 'absent'

Possible Duplicate: Fresh Debian Squeeze (6) Installation - Very High Ram Usage We have a Dell Poweredge R210 server with 8GB of installed RAM. This is a fresh install of Debian Squeeze, ...
1
vote
3answers
177 views

check why memory is being used [duplicate]

Possible Duplicate: How to understand the memory usage and load average in linux server I'm running Debian and I'm wondering why so much of my memory is being used (8GB of the 8GB) Is ...
0
votes
3answers
402 views

Does Debian clear its memory on 0.00 AM?

Introduction My server is running on Debian and I think that two days ago it was out of memory, because it was getting really slow. Everytime a little bit slower. Two times in a row it somehow started ...
4
votes
2answers
2k views

Slab uses 88Gb of 128Gb available. What could cause this?

We run a debian 2.6.26-2-amd64 x86_64 GNU/Linux on a server with 128 Gb. Recently it our available memory became rather low. Looking at the /proc/meminfo showed that the Slab was using 88Gb, which is ...
0
votes
1answer
245 views

Memory allocation and limits on debian 2.6.26

On our server we have different users that need sometimes a big amount of memory (up to 40Gb). The total of our server is 128 Gb, but recently it crashed due to different users taking up together all ...
1
vote
1answer
854 views

Debian Squeeze and available memory (1GB absent)

here I've a dedicated server with 12GB RAM and running Debian Lenny x64. dmesg | grep Memory [ 0.004000] Memory: 11917152k/12259740k available (2279k kernel code, 333820k reserved, 1022k data, ...
6
votes
1answer
2k views

Why doesn't the value in /proc/meminfo seem to map exactly to the system RAM?

The values in /proc/meminfo for MemTotal don't make sense. As a human, eyeballing it, it seems to roughly correspond to the installed RAM, but for using it to display the installed RAM from an ...
4
votes
4answers
3k views

Who is using the swap memory and why?

My database server is using 191MB of swap space - but also shows 182MB of free RAM The box is a dedicated MySQL server, running Debian Lenny. How can I determine who and why is filling the swap ...
0
votes
1answer
388 views

Debian Lenny 64 Bit doesn't show 4GB Memory

I'm using Debian 5.0 (Lenny) 64Bit on my server and my server has 4GB memory but unfortunately Debian shows 2 GB on /proc/meminfo and with "top" command. Do I need to use bigmem kernel with 64bit ...
0
votes
2answers
347 views

Can only see 2GB of 4GB on 2.6.26-1-xen-amd64 debian 5, Dell PowerEdge 860

Any suggestions? Adding mem=4G to grub doesn`t help. free total used free shared buffers cached Mem: 2538496 299684 2238812 0 7380 ...
4
votes
2answers
8k views

Apache heavy load VIRT vs RES memory

I have a Debian 5 server, which gets a lot of traffic. Right now the server has 4 GB of RAM and no swap memory. I see in top that Apache processes consume roughly 180 MB virtual memory (VIRT) each, ...
2
votes
3answers
2k views

VPS With 256MB of RAM: Ubuntu or Debian

I have a VPS with 256MB of RAM that I'm setting up. I plan to eventually move the sites that I currently host on shared hosting accounts over to the VPS. The domains received an aggregate of 2,046,164 ...
2
votes
4answers
513 views

Odd memtest86/boot problems on linux machine

I run Debian Lenny 64-bit on an HP server with an Intel Core 2 Duo processor. It boots with LILO rather than GRUB because it has an XFS root partition. Up until today it had 3 GB (2x 512MB and 2x ...
2
votes
2answers
1k views

How to minimise bind9 memory footprint?

I'm running bind 9.5.1 on debian lenny. Unfortunately the machine does not have a lot of memory (only 500MB) and with apache, db and mailserver this is getting tight. Currently bind takes about 10% ...
6
votes
3answers
4k views

Linux only detects 2gb of RAM with 4 installed - i386 Debian Lenny

I have a machine with 4gb of RAM, but Linux is only detecting two in top and free. The BIOS reports 4. Running i386 Debian Lenny.
8
votes
2answers
9k views

Running out of memory running fsck on large filesystems

I look after an old Debian linux box (running etch) with only 512 MB of RAM, but a lot of external storage attached. One ext3 filesystem is 2.7 TB in size, and fsck can't check it, because it runs ...
5
votes
2answers
626 views

Low memory application priority

I'm running Debian on a machine that has limited memory and no option to add swap space. The machine serves as a web and database server. The problem I'm seeing is that when multiple web requests come ...