Questions tagged [memory-usage]

The amount of memory required by a program or the system for a specific task.

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Understanding my Memacached memory usage in a Rails app (versus what AWS says)

I have a Rails app running on AWS, and in AWS I have a Memcached ElastiCache node of type cache.m3.medium (3GB memory, moderate network performance). When I look at the Unused Memory graph I see that ...
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Assigning CPU and MEM usage variables in PBS/TORQUE

I asked this question at meta.stackoverflow.com; they said it was the wrong forum I am using the FALCON assembler (for genomes by PacBio; https://github.com/PacificBiosciences/pb-assembly) and it's ...
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Why cannot use buff/cache?

It seems mysqld allocates too much memory as buff/cache: free -m total used free shared buff/cache available Mem: 990 448 96 36 ...
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cause of apache increased memory usage

Running Ubuntu 18.04. Apache 2.4.29. 1GB AWS instance (only for dev/testing purposes) Using ps_mem.py (https://github.com/pixelb/ps_mem) to monitor memory usage by process. Apache randomly went from ...
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ASP.NET Core 2.0 Application Restart - Memory Usage

I have an ASP.NET Core 2.0 (NopCommerce 4.0) application on IIS v.1607 When my process arrives at (approximately) 1300MB of memory, the web site stops responding, and after some minutes the ...
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MariaDB memory spikes and crash

We are running a MariaDB 10.5.8 server on GKE with 16Gb of RAM. The server have multiple times a day unexpected memory usage spikes that crash the server 1day memory usage graph (orange line is k8s ...
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100% CPU and RAM used in ubuntu server [duplicate]

I am using ubuntu to deploy a laravel project. 2 days ago my server crashed and I could not access it even via ssh. I restarted the server from AWS dashboard, but it crashed again after some time. So ...
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Why apache2 ocuppied too many memory and took a long time to release the memory?

I have installed ubuntu 16.04 with 16GB Memory and 8 CPU. When I start an apache program, it occupied lots of Memory and took long time to release. For example, start the program first time, the ...
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Application specific system tuning

I'm running an application under wine (Navico insight map creator) on multiple machines and am in the process of benchmarking and optimizing the performance of this process. I find the following ...
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What is using (kernel) memory?

I know this kind of questions about memory usage have been asked several times, but unfortunately none seem to answer our current problem. We are currently running an AWS EC2 instance with the ...
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525 views

Mysql filling all the buff/cache memory

The more time the server run, the more buff/cache Mysql processes use, i'm at 95% right now and only a server reboot free the buff/cache memory. None of the mysql commands free it on the go. Is it a ...
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Messagebus is using more than 4 GB RAM

I have just checked my Server and it is running relativly low on RAM. There are currently no users on anyone of the Services Installed (Jitsi, Rocket.Chat, OnlyOffice Workspace) as they're all still ...
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Memory used but not reported on Linux

I have 2 servers running the same applications, but one is miss-reporting memory by around 400mb (out of 1GB) and I cannot figure out where that memory is being used. I've compared the output of /proc/...
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MongoDB high usage WiredTiger

We are having difficulty with MongoDB high RAM usage in AWS EC2 Instance ubuntu with 30GB RAM. In our server, there are over 3K databases and It's out of memory from time to time. I read a lot about ...
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Server memory slowly increasing linerarly over time

I am running an Ubuntu 14.04 LTS server with a number of processes on it, mostly Apache and MySQL to support some small websites and projects I am hosting. However, over the past two months I have ...
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133 views

Monitoring swap usage of cgroup

I have a bunch of .NET Core applications running as systemd units. The host is running out of memory and slowly increasing swap usage to 100% so I suspect one or more of the services has a memory leak....
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How do I track down a mysql memory issue on a server running a single WordPress site?

I'm having a weird issue. A few times a week, a website I'm running on Amazon Lightsail comes to a crashing halt and becomes IO bound (I can't usually use ssh when this happens) and the server runs ...
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What is the best mysql configuration for mysql instance with a lot of databases and lot of tables inside?

I have a mysql database instance with more than 3000 database inside. Each database contains more than 200 tables. I have more than 100 gb of data in all these database at present. I am using windows ...
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Why does “ipcs -m” only show one process?

I want to find out how the shared memory is used between the different processes running on a server and got the impression that the "ipcs -m" command can be used for this purpose. So when I ...
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557 views

High IO rate when system out of memory

I found that when the system goes out of memory, the disk IO usage will be very high. It seems many processes are reading from hard disk frantically (check htop output below). When I kill a process ...
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Libvirt VM using twice it's memory

Running on Ubuntu server, a CentOS 7 VM is eating the memory : Host: # free -m total used free shared buff/cache available Mem: 80140 71676 ...
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Win Server 2019 Hypervisor, VMs show high ram usage, Hypervisor doesnt?

Im having a really weird issue with my server, never had it before. Hypervisor is running Win 2019, VMs are mixed 2012r2 and win 10. Im running about 10 VMs on 128gb ram, vms inside show ~90% ram ...
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Dell PowerEdge T-620 - Choosing Memory Modes in the BIOS

I'm trying to configure the Memory Mode, in the BIOS, of a Dell PowerEdge T620 with dual processors: Owner's Manual | Technical Guide The system has 384GB of DDR3 LRDIMM Memory and I'm able to choose ...
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How can I find what is using all of the server memory and record a log of it for analysis afterwards?

I am running Windows 2016 Server on IBM Cloud. Today the server crashed as in it became unresponsive and the websites stopped responding as well as the Microsoft SQL Database server instance. Normally ...
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VPS's memory consumption [duplicate]

I have a VPS with ubuntu 18.04.4 with 2gb and 512mb swap. Working regularly with 600-800mb and 100mb swap and all is well. 2 weeks ago I updated the WAR (tomcat) and the memory jumped to 1.2gb and 400-...
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MariaDB memory use rises beyond configured size

I noticed a steady increase in system memory use %age (as reported by sar) which I've tracked to MariaDB. It's does not seem to be related to db load: this increase is notmatched by an increasing ...
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I need to run multiple processes at once, which server should I use [duplicate]

I bough droplet on DigitalOcean 1GB and 1CPU. I'm running cronjob there. Currently I'm able to run 30 background tasks(processes) at once, once I go up server cannot handle that much. Those ...
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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 ...
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Can we use PMAP to check total shared RSS memory by multiple process?

I am trying to calculate the memory footprint of docker container processes. I started 3 containers by executing docker run -d -t ubuntu:eoan Each container is assigned with one containerd-shim ...
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337 views

High Usage of Non Paged Memory on Windows Server 2016

Good day, I have been trying to troubleshoot a high non paged memory error from Solarwinds Remote Monitoring Management software it reports 664mb non paged usage on the Host OS and 145mb non paged ...
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Out of memory in Linux server killing my tomcat server

From last night I am getting below unexpected behaviour. Out of memory: Kill process 1740 (java) score 128 or sacrifice child Apr 8 19:14:20 ubuntu-s-4vcpu-8gb-sgp1-01 kernel: [17644.393549] Out of ...
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Committed/Allocated memory in Linux is less than used memory. How is that possible?

So I have a system with linux kernel 4.14.73 in which I am using values from /proc/meminfo in an program that shows the system specs including memory used and memory reserved. All was well until I saw ...
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Is 6% CPU & >180 MB RAM usage normal for exim4 on Debian 10?

I just (attempted to) set up exim4 on Debian 10. Is the above normal for exim4 running under root when I run sudo systemctl restart exim4.service? Seems a bit high for an MTA. I have root: ...
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Query peak GPU memory used by finished job

I have a SLURM job I submit with sbatch, such as sbatch --gres gpu:Tesla-V100:1 job.sh job.sh trains a model on a V100 GPU. The code itself does not log GPU memory usage. Is there a SLURM command ...
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Windows server with less than 1% free memory

We have a SAP installation running the main server with 35GB ram and the app server running with 65GB ram. From the operational system perspective the main server has a fixed allocation of 31GB ram ...
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mysql taking too much disk space in windows

I would like to know how MySQL uses disk space. Consider the following scenario. I tried to import a large mysqldump (1.6 GB) using the command mysql -u root dbname < mydump.sql. But the import ...
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872 views

Is there a way to restart SYSTEMD services when they are reach their CpuQuota or MemoryHigh limits?

The problem is about the systemd services. I know we can limit the Memory Usage or Cpu usage of services but my question is that is there a way to restart service when it reaches to its Memory high ...
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Dedicated server “out of RAM” while monitoring tool show RAM at 50%

I have this dedicated server at OVH with 64gb RAM running several docker containers. In the last month, it has started to hang unexpectedly; Monitoring tool shows memory & cpu usage at barely 50%...
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256 views

How to accurately gauge memory usage in Elastic Beanstalk/EC2 server?

I have an elastic beanstalk environment running a nodejs server. I'm trying to gauge memory usage to determine which instance type is most appropriate, and how much memory we actually need. To do so, ...
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journald memory usage on CentOS 7

I have an AWS EC2 instance running a CentOS 7.7.1908 (systemd 219) with a server application. The server logs quite a lot of information to the system logs (using syslog). I have recently enabled ...
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651 views

Linux: drop caches do not free buffers/cache - why?

Since I've found discussion of buffers/cache on that site, not Unix of SE, I post my question here. I've read In Linux, what is the difference between "buffers" and "cache" ...
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Is there a way to find out how much RAM ZFS snapshots are using?

We want to keep quite regular (5 minute) snapshots of certain zvols. But are also concerned about how long we should be keeping them and how much memory they use. Is there a way to check how much ...
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Production-ready Node/React app - memory utilization issues

I have an app that is deployed on AWS using ECS and recently facing some issues with memory utilization. To give you a little background: Our app is Node.js (specifically Sails.js) backend with ...
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315 views

php-fpm using more memory than mod_php

I recently moved a PHP5 application from Apache 2.4 + mod_php to Apache 2.4 + php-fpm. Apache is configured to proxy all *.php requests to php-fpm over Unix Domain Sockets. The application required ...
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290 views

Long TCPDUMP capture taking slowly but surely all available memory in RAM

When I tcpdump the network traffic on my ubuntu server, I see the free memory decreasing with time. It seems that the captures are stored in memory. At first, I noticed the problem because i was ...
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349 views

CoreOS high RAM usage for tmpfs

I'm using the latest CoreOS AMI (ami-0fc25a0b6bd986d03 details) on a small t2.nano instance. This instance only has 500MB of memory. Unfortunately, CoreOS immediately consumes ~240MB for a tmpfs, ...
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161 views

What's the difference between ipcs -lm and cat /sys/proc/kernel/xxxx

I tried ipcs -lm ------ Shared Memory Limits -------- max number of segments = 4096 max seg size (kbytes) = 67108864 max total shared memory (kbytes) = 34359738368 min seg size (bytes) = 1 and cat ...
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2k views

IIS Application Pool taking too much memory

We have IIS running on two servers (IIS8 and 10), and encounter very high memory usage of our ASP.NET WebForms Applications lately, mostly accessed through aspx pages. What happens is that over time, ...
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133 views

Making sense of Docker and Kubernetes memory usage

I'm running a small Kubernetes cluster with one master and two worker nodes. I'm trying to understand its memory usage and whether I've exhausted the resources... And if so, how I should detect that ...
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82 views

What is filling my file system on EC2

On my EC2 AMI instance I have an issue that it gets out of memory now and then. And I don't know how to find what is causing it... If I do $ sudo df -h I can see that this takes up all my memory (...

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