Synonym for: RAM - Acronym for: Random Access Memory, a type of computer data storage.

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Abnormally high Outlook 2010 RAM usage for one Terminal Server user (RDS)

I'm working on a busy Windows 2008R2 Terminal Server where a particular user's Outlook session consumes between 2GB and 4GB of RAM. The process doesn't appear to be a slow memory leak, as the RAM is ...
0
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0answers
12 views

Jetbrains team products + out of memory

I am trying to build an Ubuntu server 15.10 VM with all the software tooling required for software development. When I saw that Jetbrains offers various tools like: hub, youtrack, teamcity and ...
0
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0answers
32 views

How to stop NGINX spawning new instances

So a bit of background, I'm running a little web app using just in-memory data. It's about 20 rows all-in so I've removed the database to speed things up. Just recently I deployed it on a Raspberry ...
0
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1answer
27 views

How much RAM is enough RAM where you want it to be ECC?

I am building a high-spec workstation on a X99 chipset, and I found that 64GB of DDR4 (non-ECC) RAM is quite affordable. This got me wondering, because data integrity in my workloads are important; ...
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votes
1answer
51 views

Linux Server Memory: Is this enough?

One of (weblogic)process on my WAS server(redhat linux) is killed at last night. There is no log. so I doubt my system memory. Is the system or process has enough memory? server specification and ...
1
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1answer
34 views

Implications of increasing physical ram of VM

I have a Centos7 VM running under VMware and I'm considering increasing virtual memory in the Centos VM. Currently my VM has 8GB of virtual memory, 6GB of swap and using 0 swap right now. I am ...
2
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2answers
124 views

free reports bogus amount of swap used

The swap used reported by free is very high. [root@rhel6 ~]# free -m total used free shared buffers cached Mem: 9892 9537 354 0 ...
1
vote
1answer
41 views

Is there a way to limit the “buffer” memory use in Linux?

I'd like to limit a Linux server's assignment of RAM into the disk cache buffer and instead leave it idle. (CentOS 5 if it matters). I know it's ideal to be using every drop of physical RAM available ...
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votes
0answers
15 views

How much minimum memory do we need for a cPanel with low viewed sites? [duplicate]

I have a new VPS with 50GB disk and 1GB RAM, CENTOS 6.7 x86_64 kvm – server WHM 54.0 (build 8). I have a few sites only, where the most visited site has around 3000 views per day (all other sites may ...
44
votes
6answers
91k views

Top - what does Virtual memory size mean? …linux/ubuntu

I am running top to monitor my server performance and 2 of my java processes show virtual memory of up to 800MB-1GB. Is that a bad thing? What does virtual memory mean? And oh btw, I have swap of ...
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1answer
36 views

How can I close httpd open conncetion? [closed]

I have a lot of open connection of httpd and ram usage, how can i solve this?
0
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3answers
49 views

Advice on DL380 G5 RAM, and why the DIMMS I have aren't supported

I have 3x DL380 G5 servers that were second hand retired ones. One of the servers, I populated with 4x 4GB DIMMs, and 4x 1GB DIMMs. Everything was working away merrily, and I decided to purchase some ...
0
votes
1answer
32 views

HyperV memory per NUMA node

I have some issue with memory allocation on my Hyper-V 2012 R2 server. Server has 16GB of RAM, with 2 x 12 core CPUs. When I run Get-VMHostNumaNode, I am getting following results: NodeId ...
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votes
0answers
71 views

Not enough memory in the system to start the virtual machine

I have problem with my newly installed hyper-v server. Server is IBM x3650 M4 dual processor with 2x8GB ram, correctly placed, one for each processor (I placed them correctly after problem started - ...
60
votes
2answers
4k views

Does memtest86+ test memory which is used to run itself?

One of the common server failure scenarios is bad DRAM, sometimes even when ECC memory is used. memtest86+ is one of the most useful tools to diagnose DRAM problems. As it loads itself at the start ...
0
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3answers
1k views

HP Proliant ML110 G6 RAM Upgrade Issues

We have an HP Proliant ML110 G6 server running here at work which presently has only 8Gb RAM installed. The RAM presently in the system is Integral IN3T4GEZBIX or in other words PC3-10600 unbuffered, ...
0
votes
1answer
16 views

How to allocate memory to memcached?

I need to allocate memory to memcached. I executed following command sudo find / -name memcached.conf and it returned a single file located at /opt/bitnami/common/etc/memcached.conf and it ...
9
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10answers
15k views

Linux - Is there any way to identify the speed of your memory through software?

Is there any way to identify the speed of your memory through software? I am on Fedora 9 and looking to find out the speed of the DIMM's I have in there currently. I have tried a 'lshw' but it doesnt ...
2
votes
1answer
35 views

Interpreting mcelog output for bad DIMM

I'm getting streams of mcelog errors on a machine to which I don't have physical access. It seems like a bad DIMM, but I'm having a hard time determining exactly which one. mcelog output looks like ...
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1answer
23 views

Installing 2x16GB + 2x8GB ram in Dell R410?

In Dell's memory guide for the R410, they only give examples when using 16GB modules. So my question is, how do I install 2x16GB + 2x8GB modules when having 2 CPU's?
6
votes
3answers
9k views

How do I assign a memory limit for mySQL?

mysql tuner reports that mySQL can use 166% of installed ram, how do I limit RAM usage ? [!!] Maximum possible memory usage: 426.8M (166% of installed RAM)
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votes
2answers
565 views

What is the Rowhammer DRAM bug and how should I treat it?

DRAM chips are very tightly packed. Research has shown that neighboring bits can be flipped at random. What is the probability of the bug triggering at random in a server-grade DRAM chip with ECC ...
14
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8answers
9k views

Would you use ECC RAM in a workstation?

Is ECC RAM recommended for use in workstations, or is it something that only gets used in servers? If non-ECC RAM works in PCs, why would we need ECC RAM at all?
3
votes
1answer
1k views

MySQL memory usage - Periodically need to run FLUSH TABLES or memory usage keeps growing with large-pages turned on

After switching our rather memory + physical core rich database server to large-pages, we have noticed a small issue. The memory usage almost looks like there is some sort of memory leak. But ...
0
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1answer
26 views

centos vps memory is too full

my ram is almost full without any process using it. maybe you think it's a duplicate question but unlike others my -/+ buffers/cache is used too. this is output of related commands: top - 00:27:38 ...
2
votes
1answer
42 views

Docker using huge amount of swap memory on Ubuntu 15.04, why?

I am suffering from excessive memory usage, currently amounting to ~940 MB physical and ~1 GB swap memory, on my Ubuntu 15.04 x64 Docker (1.9.1-cs2, build 4ade326) host. According to top, Docker is ...
50
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4answers
33k views

In Linux, what is the difference between “buffers” and “cache” reported by the free command?

This is an old question that I've seen from time to time. My understanding of it is rather limited (having read about the differences a long time ago, but the factoid(s) involved never really stuck). ...
6
votes
1answer
1k views

1GB VPS - Apache Worker MPM - FCGID - Max concurrent connections - RAM CAP

I have spent a week or two researching and setting up my server to run Apache with the Worker MPM and FCID. I am trying to optimize it to allow for the most concurrent connections possible. It has ...
0
votes
0answers
17 views

Is 1GB ram enough for 250 mailboxes on a basic postfix dovecot email server [duplicate]

P.S: I did 20 minutes of research to find any solution here so I clearly know why I created separate question. Please don't mark duplicate unnecessarily. This is second time I am asking same ...
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votes
1answer
19 views

N0.C1.D0 meaning in dimm config?

Could somebody explain to me what this code means in dimm config? I have E2680 server. Below is the log: N0.C0.D0 : 16 GB (1Rx4) DDR3 - bank: 8, row: 0x20000, col: 0x800, 800 8-6-6 cwl= 5 ...
2
votes
0answers
93 views

Ubuntu Server 15.10, process not being allowed to use all physical memory, kswapd0 using 100% CPU

I have a 24-core server with 64G of DRAM, and it's running Ubuntu Server 15.10. I am getting some strange behavior with respect to swapping and physical memory use. I never had this trouble until I ...
0
votes
1answer
984 views

java 7: should users be aware of changes in heap memory handling?

After installing the latest Java 7 Development Kit (Java SE 7u11) on my Windows 7 Professional 32bit PC with 4Gb RAM, I noticed I can't allocate much memory for Tomcat. Whereas these memory settings ...
0
votes
1answer
70 views

host a 500gb mysql database in RAM memory

I have a 500gb mysql database. Assuming that buying RAM is not a problem (memory is cheap), is it practical or even sane to host an entire 500gb mysql database in RAM memoery for faster accessing ...
21
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6answers
52k views

Dump a linux process's memory to file

Is it possible to dump the current memory allocated for a process (by PID) to a file? Or read it somehow?
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0answers
34 views

XEN VPS wrong memory?

I ordered a VPS on XEN platform with 1 GB of memory. CentOS 6.6 uname -a Linux vps 2.6.32-504.23.4.el6.x86_64 #1 SMP Tue Jun 9 20:57:37 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux I checked the ...
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votes
1answer
43 views

Will adding CPU cores or RAM to my cloud server improve speed in my situation? [duplicate]

I have a Siteground cloud server, and I know nothing about servers. It hosts 8 websites, although 3 of them have their own dedicated IP addresses and cPanels. It's on a Linux server, but there's ...
3
votes
1answer
64 views

Tomcat shuts down unexpectidly

I am using Apache Tomcat 8.0.23 with 1 GB RAM on centos 6 OS . I have used servlet and jsp for server side . But after few days it shuts down automatically . I have given memory size as ...
4
votes
1answer
2k views

Track memory usage of a job on SGE

I'm looking for some guidance in how to precisely figure out how much RAM my job is using on my cluster. My job is not multi-threaded and runs on a single cpu. When I run my job and run "top" I can ...
4
votes
3answers
254 views

Generating a lot of dirty pages is blocking synchronous writes

We have processes doing background writes of big files. We would like those to have minimal impact on other processes. Here is a test realised on SLES11 SP4. The server has massive memory, which ...
0
votes
2answers
532 views

pages_sharing and pages_shared difference in ksm

Can some one please help me understand this. i am running kvm hosts with 5 vms on it. These are ksm driver statistics each page is 4KB cat /sys/kernel/mm/ksm/pages_shared 162221 cat ...
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0answers
38 views

Physical memory runs out after sql changes

We have an 2008 r2 server working for 5 years, its physical memory was always around 70% but after our last site code and SQL stored procedures and functions updates it got to 94-96% and all the pages ...
0
votes
1answer
62 views

Is it possible to increase the size of RAM of a CISCO UCS blade server?

We have a Cisco UCS Server which has 256GB RAM and installed with Win 2008 Server 64bit. I wanted to know can we upgrade its RAM to 512GB RAM? Is it possible to do that or do we need to build a new ...
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1answer
32 views

Memory Hotplug in Linux is supported?

Does someone know, if the underlying hardware supports memory hotplug, in Linux is supported without reboot? Especially in Centos 6.x(x86_64). Thanks
0
votes
0answers
26 views

DELL PowerEdge R710 RAM upgrade

I have the following configuration: 36GB MEMORY FOR 2CPU 6X4GB on bank #1 (A1, A2, A3, B1, B2, B3) 6X2GB on bank#2 (A4, A5, A6, B4, B5, B6) Visualization of DIMM slots I have another 6x16GB ...
0
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1answer
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NUMA processor definition

NUMA, non-uniform memory access designates a symetric multi-processing system where processors are grouped into nodes, with each group sharing some level of memory, so that memory access on same node ...
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3answers
4k views

Find all virtual machines with ballooned or swapped RAM in VMware cluster?

If I were to look at a vSphere cluster or resource pool and see a certain level of memory ballooning or swapping, how do I identify which VMs are affected? I know what to do with them once I find them ...
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votes
1answer
86 views

How to change grafana units of measurement on Y-axis? [closed]

I am gathering data from servers by collectd and store it in the graphite. I want to use grafana dashboards. I am trying to create visualisation for memory plugin. In graphite I am seeing data in Mb, ...
0
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0answers
33 views

CENTOS 6.5 x86_64 standard rsync filling cached ram while using nocache

What I'm doing: I have mounted a windows share on my server and every five minutes I move a 1.5GB file to it using this command: nocache -n 4 rsync -a -W --bwlimit=20000 /mnt/share /file/location ...
0
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0answers
19 views

Minimum hardware requirements for ElasticSearch in docker [duplicate]

I am developing a search application using elasticsearch and I would like to keep the development cost as low as possible. What are the minimum requirements for elasticsearch to run properly inside a ...
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votes
1answer
38 views

RAM not compatible [closed]

I'm new here and new to servers in general, so I might just be overlooking something. I recently was given a few free Apple Xserves (3,1). I decided I would try to build a single better server from ...