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

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2answers
323 views

How do I configure Linux to use less memory for IO caching? [closed]

I'm running a Dell R310 with CentOS 5.8 x64 and all it's running is apache, svn, and postfix. It's using 99% of the RAM for caching but i'd like it to use a little less like maybe somewhere in the ...
3
votes
1answer
2k views

How to free PHP-FPM memory?

There are several discussions complaining high memory usage of PHP-FPM, without any practical approach to overcome. As I explored the problem with numerous tests, the problem is related to the age of ...
2
votes
3answers
304 views

What kind of Windows-based “process accounting” software is available?

Linux has pacct and kernel-based processing. What equivalents are available for Windows? I am aware (and use/recommend) of Process Explorer, but that only tracks real-time stats, with non-portable ...
8
votes
2answers
19k views

Used memory on Solaris 10

One more question about memory on Solaris 10. A top shows me that I have 672 MB free memory : 130 processes: 126 sleeping, 2 zombie, 2 on cpu CPU states: 95.1% idle, 3.9% user, 1.0% kernel, 0.0% ...
5
votes
2answers
1k views

How quickly will SQL Server release RAM when the OS signals a low memory condition?

From the SQL Server 2008 R2 Books Online: Server Memory Options When SQL Server is using memory dynamically, it queries the system periodically to determine the amount of free physical ...
2
votes
4answers
125 views

Is this a good behaviour? [duplicate]

My centos 5.7 is running Magento. 4GB RAM and 4 Cores. Nginx + spwan-fcgi + memcached (Best performance if you ask me). Now i'm a little bit concerned about the Memory usage. [root@adikastyle ...
2
votes
1answer
483 views

Multiple instances of HTTPD running, and virtual memory constantly running out?

I've noticed my VPS behaving weird today. I have set it up as a web server (along with MySQL, PHP, FTP etc) and at the moment there is only one website running on there. I noticed earlier today that ...
8
votes
1answer
1k views

PHP on command line displays “Out of Memory”, no file name, line number or memory value

I originally posted this at http://stackoverflow.com/questions/9665189/php-on-command-line-displays-out-of-memory but was advised to post here instead. This is not the normal fatal error when you run ...
4
votes
2answers
1k views

Windows 2008 R2 Server using 100% RAM, can't find the problematic process

OK so I have a W2008 R2 server running a single website with about 100-200 visitors daily, and it also has MSSQL 2008 running on it for the same website. Recently, when the server starts it uses a ...
0
votes
1answer
195 views

Memory running consistently high on media temple VPS

I have a standard mediatemple VPS 512Mb RAM CPU GenuineIntel, Intel(R) Xeon(R)CPU L5630 @ 2.13GHz Version Parallels Plesk Panel v10.1.1_build1010110120.18 os_CentOS 5 OS Linux ...
-3
votes
1answer
735 views

Why does the httpd process consume so much memory? [duplicate]

Possible Duplicate: Server refuses to use swap partition I am using Linux with Koloxo panel for site management. My database server went down, and I think it happened because of a lack of ...
0
votes
3answers
161 views

Analysis on Memory Management

I'm doing Memory management analysis for my Java web application, Before starting my tomcat the free memory was around 595 MB, Once I started the server the free memory goes to 151 MB. When I took ...
0
votes
1answer
844 views

memory difference on top and htop

I got a new VPS as my database server. I installed only mysql and started. After some time(even after shutting down mysql service), I see only %3-4 of the memory used in htop but according to top I ...
1
vote
1answer
1k views

SQL Server 2008 R2 memory leak

We're in the process of moving from one server to another. I'm running the SQL Server database off our new server, with the old server now using that as a DB server with the aim to make it a smooth ...
13
votes
2answers
12k views

Effects of configuring vm.overcommit_memory

My VPS web server running on CentOS 5.4 (Linux kernel 2.6.16.33-xenU) irregularly (like once a month give or take a few weeks) becomes unresponsive due to oom-killer kicking in. Monitoring of the ...
1
vote
3answers
2k views

High Memory Usage on Linux Server

I have a LAMP server with following configuration. CPU : Intel(R) Xeon(R) CPU RAM : 32 GB HDD : 80 GB Running on virtual environment. All the things in the server are running smoothly. But I ...
0
votes
2answers
720 views

Monitor memory and CPU usage per website

The Plesk panel associated with my Linux RHEL5 server reports the CPU, memory and disk space of the server in real time although it's not possible for me to find out which websites are consuming most ...
0
votes
1answer
2k views

PHP Cron - Max Allocation?

I'm getting email errors from a cron, on Ubuntu, that lives at: /etc/cron.d/php5 I didn't install that cron, so I'm guessing it is installed with PHP. Its contents are as follows: # ...
0
votes
1answer
1k views

Enable PHP-ZTS and MPM Workers in Apache to lower memory footprint, but still keep MySQL?

My question is quite similar to this one in that I'm trying to reduce the memory footprint of my website on a somewhat meager shared hosting solution. I'm going to be playing around with my own ...
0
votes
2answers
261 views

Script to monitor specific processes' memory utilization

I have a client I do some remote server administration work for who recently started a 2-week trial period with New Relic. They have recently had some performance issues, and also asked me to take a ...
1
vote
1answer
776 views

How much memory can I lock before the system starts swapping/thrashing?

I'm trying to use Memtester as a memory stress and correctness test for my organization's Linux boxes. Memtester basically just takes in an amount of memory to test as an argument, locks that much ...
0
votes
1answer
60 views

Is there a way to get an email when system starts using swap space for memory?

I have a server that recently got knocked offline when when a blog article hosted on the box made the front page of Hacker News. From what I've heard, it seems like the server became unresponsive when ...
2
votes
3answers
4k views

Finding Average size of single Apache process for setting MaxClients

i tried pmap pgrep apache2 |grep total on ubuntu 10.4 running Apache and the o/p was like this: total 47768K total 48048K total 48048K total 48048K total 48048K total 48048K ...
1
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4answers
1k views

How to reduce the memory usage of mediawiki?

I have a VPS running apache that keeps running out of memory at Dreamhost. Dreamhost says that the problem is the wordpress configuration, but I think that's their stock answer. I've looked and the ...
2
votes
1answer
6k views

How to limit PHP-FPM memory usage?

I'm running an Ubuntu 10.04 nginx webserver with PHP-FPM. It has 512MB of total memory (256MB swap). After starting the PHP-FPM process (/etc/init.d/php5-fpm start), it uses an acceptable ~100MB for ...
2
votes
2answers
6k views

What is using all my RAM? Understanding the output of top

I've read a number of top memory use questions but I don't think they answer this. Here's the most significant part of a top run: top - 01:11:41 up 4 days, 1:06, 3 users, load average: 0.00, ...
5
votes
1answer
9k views

Meaning of Cached Available and Free Memory in Task Manager's Performance “Physical Memory” section?

I want to see how much of the RAM is being used by my system. When I go to Task Manager -> Performance and look under "Physical Memory (MB)" section, it lists 4 terms which are:- Total Cached ...
2
votes
1answer
486 views

VPS eating RAM?

I have a VPS with 512MB RAM with 1GB Burst from TelVPS. There is no swap space for the VPS. I had a discussion regarding this with my service provider but they said that they dont provide swap space ...
1
vote
3answers
2k views

VMWare SQL 2008 R2 Windows 7 High memory usage

I have a windows 7 64 bit installed in a VM which runs SQL Server 2008 R2 and IIS7. The server itself has 12 gigs of memory and is equipped with a dual core intel xeon @ 2.50 GHz. The problem (I am ...
0
votes
1answer
143 views

Recommended approach to limiting memory use on webserver

I have a Windows Server 2008 webserver with two web applications and two windows services. It is essential that the server never uses more than 2 GB of memory and the server can have no pagefile. What ...
4
votes
2answers
456 views

Simultaneously high swap and unused memory on Ubuntu server

I have an Ubuntu 10.04 web server in the cloud, with 1 GB of RAM. Here's a memory chart from Munin: but I'm having trouble making sense of it: on the one hand, unused memory is very high; but swap ...
1
vote
1answer
707 views

Perfmon takes up entire memory

Is it expected? Windows 2008 R2 Storage Server SP1, 6GB physical RAM, 18 GB Paging file Running 12 hours of Perfmon collection with low sample interval After some time, Commit charge reaches ...
0
votes
1answer
49 views

Diminishing return considerations when specifying servers

With some of the new 10-core Xeon E7 ,which can work on 20 simultaneous computational threads along with quad-socket motherboards it is possible to specify servers with 80 computational threads and 1 ...
2
votes
2answers
2k views

Ubuntu server using too much memory

my server is at a very high memory usage constantly - to the point that it won't let me log in via ssh some times. I have to reboot the server before I can log in and when it's restarted the memory ...
0
votes
1answer
298 views

PostgreSQL memory usage on Windows Server 2008 keeps growing

We're running PostgreSQL on Windows Server 2008 (on Amazon EC2), with about 40 databases. When we first launch Postgres, it doesn't use much memory, but over time, the memory usage of ONE of the ...
-1
votes
2answers
2k views

How to get email alert when windows server 2003 runs out of memory space?

We have a server where multiple web application are hosted. Users will upload files to the website that will get saved to server HD. Now and then, C: is running out of space because of the uploaded ...
0
votes
1answer
178 views

Media Temple VE is over memory (happens quickly after restart)

I checked top and everything looks okay (but I'm kind of a noob, so ya). I ran a $ free -m and it says 338/924 is free which doesn't seem so bad. However, MT reporting says mem was at 190% so I ...
2
votes
3answers
240 views

free -m output, should I be concerend about this servers low memory? [duplicate]

Possible Duplicate: How to understand the memory usage and load average in linux server This is the output of free -m on a production database (MySQL with machine. 83MB looks pretty bad, ...
2
votes
2answers
597 views

What does monit consider to be memory usage?

Once can have monit monitor memory usage… check system foo if memory usage > 95% then alert Does it use free RAM, or free -/+ buffers/cache? (or something else?) # free -m total ...
1
vote
1answer
175 views

How to Examine Virtual Memory Fragmentation on Windows 2000?

Is there a method to examine the virtual address space of a specific process to examine if that process is under going virtual memory fragmentation? I know it sounds like something I shouldn't be ...
1
vote
2answers
864 views

Apache script for low memory installation

I've been working on improving memory usage on our Centos 5.5 VDS, which now has 512MB of RAM. I've been able to use a tuneup script to greatly improve the MySQL config but am having a bit more ...
0
votes
1answer
749 views

Memory per user on AIX

nmon is showing me 99% memory usage and swap activity. My user is not very active at the moment so it should be someone elses fault. Is there a way I figure how much memory each user is taking? Must ...
1
vote
3answers
324 views

Best graphing tool to monitor mem/cpu/traf? [closed]

I am using Rackspace Cloud, oddly they don't have any way to measure your resource utilization considering it is a cloud service so I must find the best way to measure this so I can see when I should ...
1
vote
1answer
284 views

ESXi memory allocation

I'm setting up ESXi 3.5 on an old server, and I'm not able to launch any of the VM's that I've created (Admission check failed for memory resource). The Resource Allocation tab for the host says that ...
-1
votes
1answer
411 views

Dreamhost closed my domain for excessive resources usage [closed]

I come directly from stackoverflow, and is my first time posting here! I manage many domains on dreamhost for my NGO (non-governative-organization). some days ago dreamhost disabled (with very short ...
0
votes
4answers
1k views

Reducing apache VIRT and RES memory usage

On a quad-core server with 8GB of ram I have apache processes that use up to 2.3GB RES memory and 2.6GB VIRT memory. Here is a copy of the top -c command http://imgur.com/x8Lq9.png Is there a way to ...
1
vote
2answers
638 views

Can I disable BIND if I use a third party DNS?

I'm trying to get the memory footprint of my server as low as possible. When I run htop I get the following: http://i.stack.imgur.com/iHnr7.png As you can see there are 5 bind processes running but ...
1
vote
2answers
5k views

how to limit memory size a process can consume in linux

I am trying to figure out how to limit memory usage of mongo daemon to 4G. I thought to use limits.conf with memlock but I am not sure that's the right way to do it. from limits.conf man page I've ...
4
votes
2answers
3k views

How do I view NTFS metadata?

On a Windows Server 2008 R2 file server, we are encountering a memory usage problem. We used RAMMap to troubleshoot, and found that 10GB of NTFS Metadata is being cached in memory and never gets ...
0
votes
2answers
573 views

Memory usage by PID?

I was trying to measure how much memory an application is using in the current moment. So here we go, free -k -t: [user@server ~]$ free -k -t total used free shared ...