Questions tagged [memory]

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

Filter by
Sorted by
Tagged with
1
vote
0answers
20 views

Performance of different DIMM modules setups

I am trying to achieve fastest possible DDR3 DIMM modules setup. I have researched available benchmarks, I was able to came to (reasonably satisfactory) resolution between these pairs 1DPC UDIMM vs ...
0
votes
1answer
56 views

How to reduce “RAM Cache + Buffer” size due to scrapy

I am running a couple of spiders in parallel by scrapyd 1.2. Each process will raise the Buffer during the crawl significantly as seen in the chart. What is this value and how can I reduce the ...
1
vote
1answer
32 views

changing /proc/sys/vm/overcommit_memory broke my server

After changing it to 2 it closed my sftp session, and I cannot connect via ssh or sftp although it kept my session open. Whenever I run a command that isnt cd, I get -bash: fork: Cannot allocate ...
0
votes
0answers
11 views

ASUS Z8NA-D6 shows DIMMB1 disabled with 96GB of memory installed

I have a server with the following specs: ASUS Z8NA-D6 mainboard 96GB (16x6) of Samsung DDR3 PC3-8500R 4Rx4 ECC RDIMMs Memory Mode is set to Independent 78GB shows up BIOS shows on POST The ...
1
vote
0answers
17 views

AWS EC2 Ubuntu instance stops executing with swap memory [closed]

I'm running a t2.micro AWS EC2 instance with Ubuntu 18 preinstalled. This has 1GB RAM memory. I'm running a program that requires 1.4GB memory. So I added 2GB of swap memory using sudo bash -c "echo '...
1
vote
1answer
52 views

How much free ram should I try to maintain on a small server?

Due to budget constraints, I'm using the smallest droplet that DigitalOcean provides, which is running a small (4 or 5 users) legacy php application for a client until I can rewrite it for them. I ...
0
votes
1answer
68 views

How can i get to the BIOS log file on ubuntu?

I've recently learned that the actual memory run speed isnt necessarily what it says on the memory cards. The actual speed is 'negotiated' based on factors like bus speed, or clock speed, motherboard ...
0
votes
1answer
66 views

Kubernetes Pod OOMKilled Issue

The scenario is we run some web sites based on an nginx image in kubernetes cluster. When we had our cluster setup with nodes of 2cores and 4GB RAM each. The pods had the following configurations, cpu:...
1
vote
0answers
24 views

Guest machine using all the RAM allocated to it on server [duplicate]

I have a server that has KVM installed on it. this server I have created for testing purposes. server's configuration : OS: CentOS 7 Space: 60GB RAM: 2GB I created one Windows VM on this server with ...
0
votes
1answer
76 views

Kill the most memory-hungry process when memory gets low [closed]

Sometimes my Linux desktop, laptop, or server run out of RAM because the experimental software I work with occasionally tries to use more RAM than I have available. When this happens, the system and ...
1
vote
0answers
35 views

DELL PowerEdge R740xd - NUMA - memory performance

I have two physical database servers (both Windows Server 2016): test server (5 years old): DELL PowerEdge R730xd, 1x Intel(R) Xeon(R) CPU E5-2637 v4 @ 3.50GHz (4C/8T), 192 GB RAM (12x 16GB PC4-...
-4
votes
1answer
51 views

How to upgrade RAM of current Google cloud server [closed]

I want to upgrade the RAM from 8 GB to 16 or 32 GB of my current Google cloud server without facing any IP and long down time issue.
0
votes
0answers
31 views

Windows 2019 server on Azure, SQL memory crash

I'm running a website on Azure, I've got my own VM with Windows 2019, MSSQL server and IIS installed. This is the second time the following happend now in about 3 months. The website has been up for ...
1
vote
1answer
14 views

CL latency of unbuffered and registered RAM

So AFAIK, registered ram generally has a bit higher latency as going through the registers adds (usually one?) cycle. If I have two dimms of ecc ram, one registered and one unbuffered, and both say ...
0
votes
1answer
35 views

How do you know how many ranks a stick of RAM has?

I'm heavy into optimization for my job and I'm trying to better understand how to select RAM quantities. From my reading: For the same DDR4 memory speed and DIMM type, more ranks will typically ...
0
votes
0answers
18 views

Dell Inspiron running Linux Mint 19.3 detects only half of its installed RAM

I'm on a Dell Inspiron 5570 that came preinstalled with Windows 10. I installed it with Linux Mint 19.3 It has 16 gig of RAM installed, but Linux only sees 8 of it. I do use virtualbox on it ...
0
votes
0answers
14 views

Windows vps ram usage on server

When a Windows vps (6Gb ram) is created on a Kvm based CentOS 7 server, it blocks all the ram (6Gb) on server. Whereas it does not happens when creating Linux vps. Any ideas ?
1
vote
1answer
31 views

How to tell how much memory is available to a single process in Linux?

I have a Linux server dedicated to Redis. Redis is supposed to take up almost all RAM to itself. I am worried that Linux may impose a limit on memory consumption for Redis. The question is this: how ...
0
votes
2answers
57 views

Is it possible to manually swap out a page by its virtual address?

Say, for a process, I know it has a page located at virtual address 0x42424242. I want to manually swap it out to the swap area. From user space I think it's hard to do so. I didn't find any related ...
0
votes
0answers
42 views

kafka + using RAM disk insted of physical disk

we are using kafka cluster , when each kafka broker have physical disk is it possible that kafka broker will used RAM disk instead of physical disk ? , What is a memory based file system (RAM disk)...
14
votes
1answer
3k views

Linux goes to swap while plenty of RAM installed

I have a linux box that is used as SAN storage. It is equipped with 14 SATA HDDs and the only software it run is iscsi target and zabbix agent. This is physical box, not VM. The RAM size installed is ...
0
votes
0answers
47 views

Server process being killed

I am trying to run a minecraft server (using spigot) off of a pi 4. I tried increasing the RAM it can use, but all I get is (*Old one from before I installed spigot): ./startserver.sh: line 1: 792 ...
0
votes
0answers
14 views

OpenVz 7 - Host Shutdown / Reboot

Tonight my OpenVZ 7 host has rebooted and I am looking for the cause. The host is not reachable via internet, it works with a private IP behind a firewall with NAT. A SSH login would only be possible ...
0
votes
0answers
10 views

Processing required to write multiple images every second [duplicate]

I am developing an application in Ubuntu which needs to read a video and save the frames as jpg(1920x1080) images - around 30 frames per second. How much processing does writing images take up and how ...
0
votes
1answer
41 views

How to populate one 8gb and one 16gb dimm in a Dell R230?

The Dell R230 User Manual page 57 states about mixing dimms with different capacities: When mixing memory modules with different capacities, populate the sockets with memory modules with the ...
0
votes
0answers
30 views

Ubuntu 16.04 - Not reporting memory use properly?

I thought I had a handle on memory in Linux, but this issue is making me doubt myself. I have a server running Proxmox 5.4-13, on which I have a container running Ubuntu 16.04. This container runs ...
0
votes
0answers
39 views

kernel error message related to memory

Hello I am new to this world. I have these messages on the storage server and compute nodes. The whole cluster gets slow or does not response. How I can handle with this problem? I am using CentOS 7.5 ...
0
votes
0answers
55 views

mixing RAM sizes in SuperMicro X10DRH-iT

I have maxed out my server with 16 x 32 GB DIMMs: 32GB PC4-17000 DDR4-2133Mhz 4Rx4 1.2v ECC I would like to replace 8 of those with larger (64 GB) DIMMS with the exact same specs, except 64 GB ...
0
votes
2answers
66 views

Is it safe to have virtual memory in servers?

I'm not sure if it's safe to have virtual memory (pagefile.sys) in servers? Safe in the sense of: Would it affect the data in the cache that is being handled by RAM? Does it conflict if it will be ...
0
votes
1answer
51 views

Server crashing because of out of memory

My server crashed 3 times in the last week from out of memory. Server is ubuntu 14.04 with 8Gb ram. MySql server 5.5.50 Below is a graph from munin: I didn't have the historical ram consumption ...
0
votes
1answer
18 views

Why is oom-killer truncating the name of a presumed offending file?

Here's an example log Jan 31 11:46:15 [kernel] [753684.206218] /usr/local/Calc cpuset=/ mems_allowed=0 Jan 31 11:46:15 [kernel] [753684.206244] CPU: 0 PID: 7577 Comm: /usr/local/Calc Tainted: P Now ...
0
votes
3answers
69 views

unattended memtest: is it practical?

I will be building a medium scale cluster (20 nodes, expanding later) and for various reasons, using commodity hardware should give me a significant cost saving (even allowing for shorter operational ...
0
votes
1answer
104 views

make a copy of everything in memory [security+]

Comptia security+ exam question An incident involving a workstation that is potentially infected with a virus has occurred. The workstation may have sent confidential data to an unknown internet ...
0
votes
1answer
81 views

My server has a high usage of buff/cache RAM?

Recently I saw that my server Ubuntu 18.04 LTS has a high usage of buff/cache memory. free -mh total used free shared buff/cache available Mem: 7.8G ...
0
votes
0answers
43 views

Why does oom-killer run with free memory in other zones?

I've read in my syslogs that the Out of Memory Killer is terminating processes when the "Normal" memory zone is underneath the minimum limit, but I still have tons of free memory in the "HighMem" zone....
0
votes
0answers
30 views

Issue with production kiosk setup with Chrome

We have 6 touch kiosk (4k resolution) running Ubuntu 18.04 Linux, Google Chrome browser and Vue.js application inside. Specification: PC: https://www.hpmarket.cz/productOpt.asp?konfId=4KX74EA 8GB ...
0
votes
1answer
109 views

Run website on Google Cloud with more than 6.5GB per vCPU

I'm running a website that has high memory requirements because it implements a machine learning model. I suspect 8GB will be enough, but could need a little more. Google App Engine standard and ...
0
votes
0answers
31 views

No memory demand for OPNSENSE on Hyper-V

I have a OPNSENSE virtual machine on Hyper-V. Initially the memory was set to static and the memory demand was always 0 (not display). I also tried setting dynamic memory but nothing has changed. ...
0
votes
0answers
20 views

Windows Server 2016 memory size discrepancy

This is a screenshot of Resource Monitor next to the Task Manager for my Windows Server 2016 virtual machine at my hosting provider: Note that in Resource Monitor it shows Total: 4,095MB, Installed: ...
0
votes
1answer
25 views

Troubleshooting “traps: proces_name[pid] general protection” memory issue on Linux

I'm trying to troubleshoot a memory issue on one of my servers. Some time ago a daemon my company is developing crashed with segmentation errors. All would be somewhat fine, but seconds later other ...
0
votes
1answer
96 views

CE error on in Memory log

I Have HP server (DL360-G7) and on it run Centos7 + cPanel. in /var/log/message I see this error: EDAC MC0: 5450 CE error on CPU#0Channel#1_DIMM#0 (channel:1 slot:0 I change RAMs and memory slots in ...
0
votes
1answer
173 views

Java memory is limited but it still uses way to much RAM

I read a lot but what I read so far did not make much sense, so I am asking here a new question about Java and memory. So I am starting a Java app with the following CLI arguments -Xms48m -Xmx96m -...
0
votes
1answer
22 views

How can I tell if RAM sold on the internet is SODIMM size if it is not mentioned?

How do I know if the following RAM is SODIMM size? Manufacturers never make it simple to buy... https://www.scorptec.com.au/product/Memory/DDR4/79106-KD4AGU880-32A160T http://www.klevv.com/ken/...
0
votes
3answers
1k views

Check RAM speed on virtual machine

On a bare metal server, I'm able to get the RAM speed by running: dmidecode --type 17 Speed: 2400 MHz Configured Clock Speed: 2400 MHz On a virtual machine though, the output is always the same:...
0
votes
0answers
267 views

Having enough memory but getting “insufficient memory for the Java Runtime Environment to continue”

My java app crashed after running for 3 days with following information: # # There is insufficient memory for the Java Runtime Environment to continue. # Native memory allocation (mmap) failed to map ...
0
votes
0answers
94 views

Forensic memory acquisition on AWS, Azure and Google Cloud Platform (GCP)

When I run a virtual machine locally with VMWare, I can trivially acquire RAM by suspending the machine and then copying out the .vmem file. If I am running a VM with XenServer, I can trigger a ...
1
vote
1answer
32 views

Mixing DIMMs in Dell R815

I am about to upgrade RAM of a Dell R815 with 4 AMD 6174. Current working config is 8 x 16GB RAM (2 on each CPU) of unknown specs. I will be adding 24 x 16GB 4Rx4 PC3L-8500R-07-10-F0-D2 M393B2K70CM0-...
1
vote
0answers
136 views

Memory controller or ECC errors on Xeon server. How to interpret the syslog entries?

I just got an alert from one of my servers, running FreeBSD 11.2 on a Xeon E5-1620 v4 with ECC. Its the first time I've seen an error like this, and there's a lot of detail. But it's also a one-off ...
0
votes
0answers
12 views

SuperMicro X11Dai-N mix DIMMs with different capacity

I have a X11Dai-N with two skylake-x cpu's and currently 4 x Crucial CT8G4RFD8266 (8GB, DDR4-2666) DIMMs installed according to the population guidelines in the manual. If I add now 4 x Crucial ...
0
votes
1answer
31 views

ECC Registered Ram: Mixing Identical Kits

So I know that identical RAM from different sets / kits may cause system instability. I'm talking about RAM with identical brand & serial numbers but with a different batch number (usually a 4 ...

1
2 3 4 5
38