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

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2
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1answer
23 views

JVM on Windows - paging and full GCs

We have a Java-based app (TeamCity, on Tomcat, on Java 1.7) running on Windows (Server 2012 R2). Java runs with a 6GB max heap size, and the system has 10GB of RAM. It is the only non-OS service ...
0
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0answers
25 views

IO Rate is exceedingly incrementing

I have read through Is a 'high' IO rate healthy?, and was at ease when I read someone say that even 50,000 / hr wasn't an issue.... or not unhealthy, to answer their question; so I increased ...
2
votes
1answer
32 views

Different server response time for 2 web pages with the same view and template?

I've recently been facing hugely increased server response time for some of my web pages (response time in the range of 10-20 seconds). For example, for the page http://www.edmhunters.com/afrojack/ - ...
3
votes
3answers
68 views

Detect memory ballooning from within the affected VM

Is it possible to detect from within a Linux VM that memory is being reclaimed by the memory balloon? I don't think any information about the host is propagated to the VM, so connecting to the host ...
0
votes
1answer
27 views

Allow Apache use more memory

I use apache2 behind nginx on 8 core CPU 48GB RAM server. Now my system uses only 3GB of all memory, but there are high load on CPUs. How can I use my free memory instead of CPUs time? I also use ...
0
votes
1answer
12 views

ML350 G5 Intel Xeon 5130 Server Dual Core and memory module of 4GB

I want to buy ML350 G5 Intel Xeon 5130 Server Dual Core 2GHz which have 2GB ECC RAM. I am .net developer and I want to setup server as my dev. server in my house. On official page there is Maximum ...
2
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0answers
53 views

Where is my RAM going? [duplicate]

I see only 370 MB (10%) free on an AWS Amazon Linux instance: $ free -m total used free shared buffers cached Mem: 3752 3709 42 0 ...
1
vote
1answer
45 views

Coldfusion JVM heap vs RAM usage

I need help clarifying memory usage on a CentOS server running Coldfusion/Apache. I've got a script that reads a file into memory and process it line by line, inserts into DB and deletes the file. ...
0
votes
3answers
82 views

Why wouldn't I want to enable swap?

I recently had an issue where a rogue process caused some ec2 instances to run out of memory and crash. It probably shouldn't have been an issue, except I was using t2.small instances which are pretty ...
16
votes
2answers
3k views

Where did my RAM go?

Note: before you jump in too fast, yes I read linuxatemyram.com! I have a server with 64GB RAM. free -m says that my RAM is full, and it's not because of disk caching: total used ...
1
vote
0answers
27 views

make linux kernel read swap back into memory [closed]

Occasionally, I run a script that uses the majority of the 16GB of physical memory on my workstation. The kernel then swaps out the rest to swap partitions on multiple disks. After the script is ...
-2
votes
1answer
50 views

Clearing Memory (RAM) Cache on CentOS

I know this has been asked in a similar way in the past but I'm just curious. If I made a script and made it run every midnight to check if my memory usage was higher than let's say, 80... would it ...
0
votes
1answer
118 views

Hyper-V: CentOS 6.6 guest with Dynamic Memory - Should I see memory decrease from guest OS?

I'm testing CentOS 6.6 in Hyper-V (W2K12R2) with dynamic memory. I set Startup and Minimum Memory to 4096MB, Maximum Memory to 16384MB. 20% buffer size. After boot I can see it's memory size as ...
0
votes
1answer
74 views

How much RAM will Apache web server use if 10 users download a 100 MB file simultaneously? [closed]

I'm planning to buy a dedicated server from 1and1.com. There are many configurations on their site. Which one should I go for if I run the LAMP stack on CentOS and host files which users can download? ...
-1
votes
3answers
87 views

free shows more memory used than top process total

UPDATE: This was being caused due to a known issue with nss-softkn. See this article: https://www.splyt.com/blog/2014-05-16-optimizing-aws-nss-softoken When I run free -m from my centos 6.5 box I ...
0
votes
0answers
30 views

Difference between ps_mem.py & free -m . Ubuntu server kills processes

Previously, I had a 4GB RAM server with Linode. Several times, I did "free -m" command to check available memory. I asked question here as well, but realized its more appropriate here. Most of the ...
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votes
2answers
36 views

Should I upgrade to more memory? [duplicate]

I'm using WHM on a VPS and am trying to work out whether or not I need to upgrade the hardware. I've currently got 4GB of memory. When I look at the daily process log it seems I have a site averaging ...
1
vote
1answer
42 views

Swap 99% but regular memory fine

I have a 1GB VPS server. I setup 1GB of swap ram too a few weeks ago and quite often it's hitting 99% whilst the regular memory is usually 40% - 60%. Most of my sites on the server run fine and fast. ...
0
votes
1answer
25 views

Memory errors despite plenty of headroom (Ubuntu VPS)

I'm getting all sorts of memory-related errors from python and php, plus segmentation faults - yet the output of free -m constantly shows plenty of spare memory - i.e. greg@greg-brown:~$ free -m ...
0
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0answers
70 views

How to limit the RAM used by Apache Tomcat on AWS micro instance?

I am running Apache Tomcat with Geoserver as a .WAR on an AWS micro server running Ubuntu 14.04 with 1 GB RAM and ~700 MB swap, and I am concerned about my RAM usage because it is overflowing into my ...
0
votes
1answer
36 views

Dell Poweredge 2970 - Cheap subsitute/compatible RAM for lab env? [closed]

I'm building a lab environment for virtualized routers, in prep for my next network cert. I have a Dell Poweredge 2970, but it only has 16G of RAM. I need to upgrade the RAM, to the max of 64GB, but ...
6
votes
1answer
91 views

How can I find which memory have CE error?

In /var/log/kern.log: kernel: [13291329.657499] EDAC MC0: 48 CE error on CPU#0Channel#2_DIMM#0 (channel:2 slot:0 page:0x0 offset:0x0 grain:8 syndrome:0x0) This is edac log, one of the memory have ...
0
votes
1answer
50 views

PHP Script causing server to run out of RAM and wont release

Ive been running a very resource hungry script the past 2 days. I manually trigger the call and it lasts for about 30 minutes then stops. Last night the script stalled when ram hit 100%. I restarted ...
1
vote
1answer
72 views

ps_mem.py vs top - memory usage?

Every now and again my apache server is crashing, getting an error saying the MaxClients has been reached. In my research I've gained the impression that I may be running out of memory (just checked ...
2
votes
3answers
71 views

java program out of memory before reaching xmx

On a Redhat CentOS 6.4 are only a few process running, using about 3GB RAM (System has 12GB available). One of the processes is a WSO2ESB Server (java), we start it with those parameters: -Xms2048m ...
-1
votes
1answer
73 views

How to release the physical and virtual memory used from the mysql server? [closed]

Several php scripts are executed from cron on my CentOS 6.5, every php script contain database requests. Depending on the php object size and type the database requests can allocate too much memory. ...
0
votes
2answers
59 views

when is the jvm heap allocated by the OS

One of our sap systems(PI ABAP+JAVA stack) was giving performance issue. The entire 64GB configured for the machine gets hogged up(and the 8 cores as well). Every one is suspecting the java part,but i ...
4
votes
0answers
59 views

Slab usage extremely high?

On a Centos 7 server with 32GB RAM memory I am running a few programs namely MySQL, Apache2, PHP. Recently I wanted to verify the amount of ram left as I was planning on installing a few more ...
0
votes
2answers
192 views

How to handle Docker memory management?

Update: Rather than spinning up my resque worker through the docker command (to test), I instead killed all my containers with fig kill, added it to the fig configuration, and ran fig up. This worked ...
0
votes
1answer
43 views

New Relic memory reporting

We're using New Relic to monitor a server and a PHP application. New Relic is reporting memory usage of 90%+, which aligns with top. However, the sum of memory used by the processes in New Relic ...
0
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0answers
63 views

Memory usage of Postgresql and play framework

I am running a play framework application and a Postgresql server on a VPS which has 2vCores and 2GB of RAM and I'm having memory issues. I limited my play application to 1024MB with the parameter : ...
0
votes
1answer
66 views

Run app only in swap [closed]

I've a very low priority level program who consume large of memory. I need to free RAM for other programs. My objective is to kill -STOP <pid> this process and ```kill -CONT when i need it. But ...
0
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0answers
61 views

Increased CPU usage and server response time

Over the past 10 days, I'm suddenly experiencing increased CPU usage on my website with CPU usage reaching 100% three times. During that time I'm unable to SSH to my website so I haven't been able to ...
1
vote
1answer
72 views

Redis eats up more and more memory

I am running Redis 2.8.17 on Ubuntu 14.04 and yesterday Redis started eating up all the memory until it was killed by OOM. I restarted it multiple times, restarted the server, flushed all the data, ...
3
votes
3answers
153 views

server's memory taken up almost to 8GB

Lately, our server face problem with the memory. Started from few weeks ago, our server was loading very slow. Accessing emails and websites were really take too long. Then we asked the server ...
0
votes
1answer
56 views

Is it possible to force a specific program to use virtual memory?

Let say I have 1GB RAM Ubuntu, I need to run both memcached and redis on the same machine The usage of memcached is quite heavy (e.g. 1K read per second) and redis is less heavy (but still 10 read ...
1
vote
1answer
72 views

Can I safely mix RAM (ECC) sizes in a server board?

I have a server (actually used as workstation) with a Supermicro X8DA6 motherboard, with 2 installed Intel X5650 processors. It uses ECC RAM. It currently has 6 Kingston KVR1333D3D8R9S/4GHB dimms ...
1
vote
1answer
88 views

HP proliant DL320 g5p Ram

I have 2 HP Poliant DL320 G5p servers that I am trying to do a ram upgrade on. They currently have 5 GB of DDR2-PC2 6400 non-registered, unbuffered and ECC. I am trying to install 8GB (4x2GB) and the ...
0
votes
1answer
88 views

OpenVZ: shmpages keep increasing

I have an OpenVZ VPS. However the shmpages always increases to the limit in one or two days. My RAM usage is low (233M without cache). I only run nginx, php-fpm, and mariadb on the VPS. I've asked my ...
7
votes
3answers
802 views

Why does the “free” command and “dmidecode” show different values for RAM?

I've got a CentOS 5.10 (32-bit) server running on VMWare. It's allocated 4 GB of RAM. If I run dmidecode -t 17 | grep Size | grep MB I see: Size: 4096 MB Yet when I run free, I see: ...
0
votes
0answers
50 views

Linux wont release memory after exec, system, passthru command from php (Imagemagick commad)

I´ve a problem with a process on my linux server: I´ve a Linux Server with Cent OS 6 and Imagemagick. When i´m running a php script with a loop of imagemagick commands... (convert, composite...) with ...
0
votes
1answer
46 views

How to know the real amount of RAM in a VPS

I've been told that a VPS's RAM can be manipulated (oversold) by VPS providers. I know I can always buy a VPS from a reputable company, but, really, how can one make sure the allocated memory is the ...
-1
votes
1answer
43 views

Memory on dedicated server is filled out [duplicate]

We are managing a dedicated server (WHM/cPanel) with 4-5(Magento & Woocommerce mostly) accounts in it, along with custom code that will connect those platforms with ERPs. This custom code works a ...
0
votes
2answers
106 views

Why does downloading a large file with wget seem to consume nearly all available RAM? [closed]

I am trying to download a file of 580MB with the following simple wget command: wget http://example.com/file.ext The server has 16 GB installed RAM of and during the entire download the memory ...
0
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0answers
34 views

Xen memory management

In real machine, I can reserve a certain of memory by editing grub to limit memory,which the machine can use, and then mapping the reserved memory using ioreamp. I can manage these memory and insert ...
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0answers
29 views

Mysql with low memory on development environment

How to set mysql to run on very low memory? (preferably under 100MB and max 250MB) Currently it's running for about 400mb. I can't turn off the innodb because production using innodb. Is there any ...
0
votes
1answer
68 views

Memory cache is full not sure what is using it and if it is normal [duplicate]

The situation is that amazon bots are download ~600k images off my server. My web app deployed on apache server is extremely slow probably because ram usage is 100% some statistics: ...
1
vote
1answer
46 views

Azure Memory Allocation (Windows VM) for Python?

I'm running a pretty intensive python script on a large Azure Windows VM. I'm using Enthought Canopy for my python environment. The VM has 56gb of ram available... however in the task manager python ...
2
votes
2answers
709 views

Is there a way to tell the runtime of a RAM module?

I'm planning on buying used RAM which was supposedly only used for a very short time. However, I'm afraid the seller might underestimate. Is there any way I can confirm the time for which the RAM ...
1
vote
2answers
165 views

Dell R710 RAM Upgrade - Making sure I get this right

I have a Dell R710 that's refurbished (so no warranty or support by Dell) and currently has 48 GB of RAM in it (12x4GB). According to the smbiosDump in ESXi, it looks like this: # smbiosDump | egrep ...