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120 views

What is using all of my memory on Ubuntu 12.04?

I keep getting alarms from Rackspace telling me that my memory usage is too high, but I can't seem to find the culprit. I ran top SHIFT + M to see top output sorted by memory, and this is what I get ...
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166 views

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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0answers
68 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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0answers
193 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
109 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
270 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 ...
2
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1answer
489 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
244 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
286 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 ...
3
votes
1answer
61 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
28 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
115 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
248 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
259 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
137 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 ...
1
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1answer
56 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
56 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
100 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
67 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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1answer
4k 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
199 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
585 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
2k 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
464 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
515 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 ...
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1answer
723 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
59 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--- ...
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1answer
69 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 ...
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2answers
807 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 ...
2
votes
3answers
328 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
48 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
155 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 ...
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1answer
153 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, ...
2
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1answer
317 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
356 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
98 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 ...
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3answers
1k 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
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1answer
2k 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
321 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
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1answer
33 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 ...
2
votes
1answer
1k 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 ...
10
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1answer
3k 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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votes
1answer
276 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 ...
-1
votes
1answer
144 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 ...
0
votes
2answers
148 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
694 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
76 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 ...
2
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1answer
326 views

Increased memory usage for uWSGI workers / masters after moving from Debian to Ubuntu

After moving our web servers from Debian to Ubuntu we have noticed a large increase in the amount of memory (RSS) used by uWSGI master and worker processes. The version of uWSGI (1.9.13) remains the ...
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0answers
54 views

Obtain the free_memory value in xen

I would like to know if there's an alternative to the command I am currently using to get the real free memory for the system (meaning memory that can be assigned to new domU) xm info | grep ...
1
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2answers
781 views

How to prevent termination of long-running Python script

I have a cron job running a Python script on a VM-based remote Ubuntu server. The script takes a couple hours to run, and I'm noticing the kernel appears to be terminating the script before it ...