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PowerEdge R210 Memory Upgrade

I have a Dell PowerEdge R210 II running with 2GB of memory. I wanted to upgrade the memory to 10GB as I am running ESXi on the machine. I purchased an ECC RAM (2 x 4GB) which allows me to get the RAM ...
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10 views

spamass-milter and opendkim use tons of memory

I recently set up a mail server using postfix, dovecot, opendkim, spamassassin, and spamass-milter, and it works fine, but spamass-milter and opendkim are using lots of memory: Above: opendkim and ...
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35 views

Odd Suhosin memory alerts

I am getting a lot of odd suhosin alerts in my syslog. The following are example entries: Jun 9 08:46:11 suhosin[9764]: ALERT - script tried to increase memory_limit to 2145386496 bytes which is ...
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1answer
38 views

Server Memory with Magento

I have a cloud server with the following specifications: 2vCPUs 4G RAM 160GB Disk Space Network 400Mb/s System Image: Ubuntu 12.04 LTS I am only running Magento CE 1.7.0.2 on this server. Nothing ...
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1answer
58 views

Slow disks but lots of RAM - optimization tips?

I have a Windows Server 2012 with rather slow hard-drives BUT with a lot of RAM and I can't change that (it's an Amazon EC2 actually). What can I do to optimize performance? I have 16 GB of physical ...
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1answer
55 views

Apache 2.2 eventually using all memory (worker mpm)

I'm tuning up a Apache 2.2 server (it's shared with MySQL + Courier + Mongo + Postgre). The server is bare metal (no virtualizataion) with 2 quad-core Xeon (total 16 core) and 12GB ECC RAM (upgrading ...
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1answer
60 views

check a vps guest memory usage and CPU usage

I have vps guests that are managed by KVM and libvirt. Using virt-df, I am able to check the real disk usage of each vps guest. #virt-df [--options] -d domname Is there a similar utility tool to ...
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1answer
129 views

PostgreSQL v9.3.4 memory usage Issue on Windows Server 2008 R2

I have DB of size ~16GB Windows Server 2008 R2 (up to date). We moved from Postgres v9.2.4 to Postgres v9.3.4 and now Postgres v9.3.4 memory usage is growing until is takes all the windows physical ...
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0answers
30 views

how to determine who is using the slabs?

Is there any way to figure out who or what is allocating size-256 slabs, like in the slabtop output below? I had to reboot a server yesterday that had 5G out of 8G RAM in size-256 slabs and was ...
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0answers
23 views

Linux meminfo “Buffers” takes more than 10% total memory? [duplicate]

I noticed that meminfo - Buffers occupies significant amount of RAM on some servers in my work environment. I'd like to know what is exactly is "Buffers" and why it takes that much amount of RAM. ...
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0answers
36 views

Memory consumption of ASP.Net app

I'm migrating an existing ASP.Net (MVC3) application to a new server. The primary reason is to migrate to IIS 7.5/Windows 2008 while it's currently on IIS 6/Windows 2003. The new server has 8GB of ...
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1answer
57 views

memory maxed out, but top not showing processes using this memory

I have a server that has 2GB ram and is running on MediaTemple's DV managed server, which uses CentOS. The command free -m gives this following: total used free shared ...
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0answers
49 views

lsass.exe uses 2.4GB of memory when resolving a web page

I have a user who has been noticing slowdowns with his machine frequently. When investigating his system (Windows Server 2008 R2) processes, we saw that lsass.exe was using 2.4GB of memory. A reboot ...
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0answers
40 views

Monitoring and reporting on page faults to determine memory issues

I'm in the process of configuring a performance monitor(s) against all servers in my domain. I'm using WhatsUp Gold 16.2 to send an alert when we reach certain thresholds. I recently read an article ...
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0answers
27 views

Why would Memory\Available Bytes go down, even when Virtual Memory used is constant?

I have a long-running application that continually loops through video files. It runs for some hours, and then a message box appears along the lines of "The system is running low on memory...". I've ...
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1answer
40 views

Tracking memory problems

I'm experiencing some trouble with my Windows Server 2008. We're using it for hosting a bunch (~50) of Web GIS applications on IIS. This setup usually works very well, but when certain applications ...
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1answer
47 views

How to determine what memory was freed

We have a somewhat complex LAMP stack running a variety of websites using Litespeed instead of Apache on Centos 5. Once everything is up and running, the memory usage of the system is fairly ...
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1answer
39 views

Varnish Hangs Every 1-3 Days After Websocket Implementation

After implementing a varnish -> nginx -> nodejs websocket pipeline (previously we had been using iptables to port forward), we started experiencing a freeze in varnish every 1-3 days. Checking some of ...
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1answer
48 views

No buffers in memory. What it means?

This is a memory stats from my VPS (OpenVZ). $ free -m total used free shared buffers cached Mem: 800 405 394 0 0 405 -/+ ...
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0answers
27 views

Mysql large memory consumption

I have a server running under openvz. System is Debian 6.0, MySql server 5.5.31 installed from dotdeb.org repo. I have very strange problem. Mysql server settings not allow Mysql to get more than 1.7 ...
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0answers
15 views

Linux Memory utilization? [duplicate]

Actually I use Linux centOS 6.2 version. recently I am assigned to monitor system utilization like memory,cpu,IO,network and all the stuffs. To perform this I have enabled SAR using systat and it ...
0
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1answer
596 views

Cannot start machine in Hyper-V - “Not Enough Memory in the system to start the virtual machine”

I have a Window 8.1 host trying to start a virtual machine through Hyper-V. The VM is configure to use 10GB of RAM, I have 16GB, it should start but it doesn't. Instead I get the message '{VM ...
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1answer
65 views

High CPU usage in RHEL machine

I have RHEL machine that runs postgres-9.1 database. In a particular time, sar output shows as follows: Refer link for snapshot: http://imgur.com/gKcOhOX,vNwTpwC#0 where as %user is high between ...
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1answer
184 views

Mysql running out of memory

I am having a lot of trouble with mysql eating too much ram on a small machine and am looking for some help in figuring out why it is eating so much. I have a small virtual machine with 256MB of RAM ...
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1answer
425 views

limit memory usage of users on windows server 2008 r2

We have an IBM server in our research lab with Windows server 2008 R2 OS. Six users log in and use software like MATLAB or R and run their codes. When a bad program takes up too much RAM or CPU usage, ...
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1answer
89 views

When does Linux run out of memory? [duplicate]

I'm trying to establish why a process keeps unexpectedly stopping, and one possibility is that the server is running out of memory, but I'm not sure I understand memory and Linux properly. Take the ...
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2answers
188 views

Something eats all memory on my server, but it is NOT fs cache

I had several times received notifications from my monitoring system about 98% memory. I ran top and counted only around 60% memory used if I sum memory column. After several hours memory usage was ...
0
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1answer
332 views

What does Zabbix message “Free disk space is less than XX% on volume Shared memory” mean?

I use Zabbix to monitor my environment. The Zabbix server warns me with the following message: "Free disk space is less than 20% on volume Shared memory" Can someone explain "volume Shared memory" ...
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2answers
51 views

find out which memory pages are owned by kernel

I can obtain a wonderful memory map of all processes with the Linux command pmap $(ps -A | awk '{print $1}'|grep -v PID) | sort | grep \^0 It looks like ... 00007fd6dbf45000 4K rw--- ...
0
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1answer
48 views

Exchange store.exe memory spiking bewteen midnight and 6AM

I have a windows server 2003 R2 64bits SP2 with Exchange Server 2007 installed. The server has 12GB of ram and during the night, always between 12PM and 6AM, the memory usage spikes to 100% with ...
0
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2answers
240 views

KVM under CentOS, swap exhausted, physical memory available

I've had a test CentOS KVM host running for about a week now with 3 CentOS guests. There's 12GB physical RAM with about 7.5GB actually allocated to VMs. These VMs aren't even being used yet as the ...
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3answers
156 views

Why is RAM usage so high on an idle server? [duplicate]

I'm investigating a server used for scientific data analysis. It's running RHEL 6.4 It has almost 200GB of RAM. It's been running very slowly for users via SSH, and after some poking around I quickly ...
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0answers
34 views

Stack , data and address space limits on an Ubuntu server

I am running an Ubuntu server which has around 5000 users. The users are allowed to SSH in to the system. So in order to cap the memory used up by a process I have capped the address space limits ...
0
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1answer
83 views

kiB memory of physical ram (linux)

How can I find amount of physical memory on linux. Background: I want to be sure, that the sum of all kvm machines, don't use more RAM than available. I can find the kiB sum like this: for dom in ...
1
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1answer
61 views

Understanding Memory Usage and Numbers in Linux

I have a web server running Apache that has some interesting numbers for memory usage. Looking at top I have the following memory information Mem: 11679976k total, 10917568k used, 762408k free, ...
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1answer
197 views

MySQL Crashing and failing to restart

MySQL seems to be crashing, normally later in the day but I can't see why! It says out of memory but there is loads of free ram and no swap space being used. I'm using Azure. Here is the log: Oct 3 ...
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1answer
144 views

How do I configure Linux to use less memory for caching?

I have a follow up question to 377448, but not enough rep to comment there. Before I get dinged for asking the same dumb question, let me say I've been reading a lot of similar posts and answers ...
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1answer
77 views

GUEST MEM - VMWARE [closed]

I am reviewing an esxi 4.1 host memory usage I would like to lower some of the memory usage on some virtual machines. For example here I have a windows 2003 server This server is using 1GB Ram one ...
1
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3answers
311 views

slow website load and high memory usage

my site has been slowed down last couple of days ... some image doesn't show up ... i got 408 Request Time-out: Server timeout waiting for the HTTP request from the client couple of times which ...
0
votes
1answer
552 views

Running out of memory, or running out of disk space?

I'm running a database loading process (osm2pgsql) which is failing: Processing: Node(17404k 148.8k/s) Way(1351k 6.38k/s) Relation(9520 29.94/s)way_done failed: ERROR: could not extend file ...
0
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1answer
156 views

Apache thread MEMORY Usage

I am facing an issue over the site i am working on, even in very low load of around 10-20 page views per second, the CPU usage maxes out, with all cores running at 100% plus the apache thread memory ...
0
votes
1answer
30 views

When using alias in NGiNX is the content of the file called loaded on the RAM?

When I load a static file via alias does it load the whole file into the RAM and then sends it to the user or is it stream directly to the user? I am wandering because I have a server with 250MB of ...
0
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0answers
38 views

Show peak memory measurement of linux system

How can I see the total peak memory usage of a linux (ubuntu/ debian) system? I'd like to see if I can go for a virtual server with less memory, but therefore I need to know the peak usage of the ...
1
vote
1answer
472 views

mysql becomes unresponsive at same time every day

My server goes down every day at same time. I found that the issue was due to mysql. I tried show processlist; and found that data base was entering in to sleep mode. I saw there was so many inserts ...
8
votes
1answer
1k views

How large is my ZFS dedupe table at the moment?

I have read a lot of information about planning RAM requirements forZFS deduplication. I've just upgraded my file server's RAM to support some very limited dedupe on ZFS zvols which I cannot use ...
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1answer
160 views

Is a memory leak possible?

We have a group of employees who are required to use IE (8, 9 or 10 doesn't seem to make a difference in the issue). When they navigate to the website they are suppose to use, an application loads ...
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1answer
116 views

MySQL settings for MAXIMUM performance / can be specific to particular DB or user? [closed]

We have a dedicated server, a very powerful one, and I don't believe we are getting the most out of MySQL. Even when running ultra-heavy processes that take a very long time to complete, I'm showing ...
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2answers
101 views

how to access physical memory in BSD platform from terminal or using any system call ?

i just not know how to use mem command in BSD to access physical memory or virtual memory to get the ACPI tables and their Address ....... $mem Enter mem command not found .... so what can i do ? ...
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2answers
380 views

Should I lower memory config of VMware vCenter Server Appliance?

I have ESXi 5.1 running on 2 hosts with less than 10 virtual machines between them currently. Host 1 has 12GB RAM (Resource Allocation tab says 9288MB) Host 2 has 16GB RAM (Resource Allocation tab ...
2
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1answer
66 views

How can a VM in Win 2008R2 cluster take more memory than the allocated Max RAM?

We found in Hyper-V Manager of one of the host servers, that one of the VMs in Win 2008R2 cluster shows "higher" Memory Demand than the Max Dynamic RAM allocated to the VM (attached is the ...