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

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252 views

Sql server 2008 R2 using Half of the memory [closed]

i built a new 2 cpu 8 core 40 gb ram Server for our ERP software which use Sql server 2008 R2 on Win server 2008 standart R2, in Sql There are 7 databases, 2 of them for Tests, 2 of them to keep ...
5
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2answers
567 views

Automatically suspend/hibernate a process when too much memory taken

I'm running a small Debian compute cluster on 8-core PCs with 16GB of RAM. I'm running batches of about 1k tasks (each batch has a total expected time of a month to be finished). A single task is ...
0
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1answer
66 views

Apache memory usage with 404

We're facing a problem with an apache server serving static files. When there are lots of requests for a resource that doesn't exist the apache starts to grow in number of processes and memory usage ...
0
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1answer
47 views

Ubuntu Precise server (basic install) using a lot of memory [duplicate]

My Ubuntu 12.04.2 server (all packages and distribution completely up to date) was just using 558MB of RAM when I shelled in this morning. Nothing is running on the server besides sshd and whatever ...
2
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1answer
603 views

Memory usage on Windows Server

Our server is always very low on available memory. And yet the top processes only take up a portion of what should be available on our server (with 10 GB of memory). I ran tasklist to get a listing ...
0
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1answer
184 views

Linux not freeing the file buffer when we execute rm or > (redirection) operator

I have one router which has embedded-linux with kernel version 2.4.22 running on it. I know its very old version but i have to deal with it. Please take a look at the free command output when i run it ...
2
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2answers
318 views

Tracking Individual Processes in Windows Server 2008, Is It Possible?

I'm hoping we can get a solution together on this. I'm looking to try and narrow down what's happening on a windows server 2008 box that's causing us to have to reboot every 2 weeks. Resource ...
0
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2answers
184 views

IIS 7 spawning processes and eating memory for trivial requests

We have a webapp (ASP.NET MVC 4) running on IIS 7.0. Recently, it's started crashing, logging OutOfMemoryException as the cause. We also get a load of "unhealthy worker process" notifications, as well ...
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1answer
56 views

How to configure Apache so that I can get server resource stats per website / per script

How can Apache be configured so that it will be simple to get server resource stats (CPU, memory) per website (as defined by a separate sites-enabled entry) and / or by script (each .html or .php file ...
0
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1answer
1k views

Sar: Free memory statistics (including buffers, cache)

The free commands gives the amount of free memory in two forms: completely free memory (the Mem line) and disposable memory used for caches and buffers (the -/+ buffers/cache line): -bash-3.2$ free ...
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3answers
1k views

Is this server using too much RAM or virtual memory ? (screen attached) [closed]

I have a VPS with 512MB of ram 40GB storage 1CPU, I run a small domain parking service on it. It is on CentOS, MySQL, Apache, etc. Now my hosting provider claims that my server is putting too much ...
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0answers
211 views

Postgres using only 500 MB of RAM of the available 4 GB

We recently moved to running postgres server on it's own VM and tracked the memory usage of the VM. Here is what I found: That the postgres is only using 500 MB of the available memory on the VM. ...
2
votes
1answer
4k views

Why does a mysql query, that requires copying to tmp table, randomly sometimes consume 100% CPU during several seconds?

I have some crazy SQL queries in my PHP scripts which badly need some optimization. However the question is NOT about how to optimize them. These queries have a lot of "join"s and some bizarre "order ...
4
votes
1answer
1k views

How can I get memory usage reported in SNMP under Mac OS X 10.8 Server?

I have two servers running Mac OS X 10.8.3 Server (Build 12D78) with SNMP reporting enabled. I have a cacti server set up collecting data from these hosts. My Load Average, CPU Usage, Disk Space Usage ...
0
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1answer
338 views

When the JVM is doing a complete GC, is it expected to see a large number of page fault/sec?

It is Window 2003 server. We are running some performance test, and what we see is: 1. In first 5 hours, the page fault/sec is very small, like 10 or 20 In the last 1 hour, the page fault jumps to ...
2
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1answer
74 views

Are blocks that are read from LVM kept in Linux's block cache?

Does Linux keep blocks that are read from an LVM logical volume in the block cache as it does with blocks read from a "regular" block device or is the IO direct? Also, do the usual buffering ...
3
votes
1answer
1k views

Very high RAM buffers usage following instance resize/reboot

Yesterday afternoon, we resized one of our Linode instances (CentOS 5.7, 64-bit) from a 4GB instance to 12GB. Immediately following that reboot, I noticed that memory usage for buffers was insanely ...
0
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1answer
627 views

Increase kmemsize size of non-swappable kernel memory

I'm getting an error about not enough resources on a VPS running CentOS The exact error has to do with non-swappable memory. Here are the stats Current Use 29.35 Soft Limit 30 Hard Limit 33 Units MB ...
0
votes
1answer
397 views

php-fpm taking too much memory

I am using Nginx+PHP-FPM with php 5.3.6 and it was working well for weeks. A few days before I found out that most of the PHP-FPM children take 3MB but a few children are taking 700MB. The web ...
2
votes
1answer
4k views

iexplorer.exe high CPU/RAM usage

My client has a virtual Server 2008 R2 terminal server running under ESXi 5.1. This server, which been in production for around 4 months, experiences intermittent slowness / non-responsiveness for ...
3
votes
1answer
887 views

Limit private memory usage per user

I'm using cgroups with the memory controller to set a memory limit for each user (using the memory.limit_in_bytes setting). The problem is that this setting also accounts cache usage. Therefore, if ...
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1answer
306 views

How to get memory util of LPARs from HMC?

I know I can get CPU utilizations with lslparutil from the HMC. But is there a way to get memory utilization stats of LPARs from the HMC? The metrics I found seems to be all configuration-related ...
3
votes
2answers
3k views

Changing memory allocator to Jemalloc Centos 6

After reading this blog post about the impact of memory allocators like jemalloc on highly threaded applications, I wanted to test things on a larger scale on some of our cluster of servers. We run ...
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1answer
1k views

How to find out who used all RAM (UPDATED)?

Sometimes I find that 100% of my small Debian machine's RAM is used, but I can't figure out how to find this leak: top show that all memory is used, but I can't find any process that consumed this ...
0
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1answer
413 views

HAProxy memory usage increase

I am running a recent version of HAProxy 1.5 (dev15), and I've noticed that after HAProxy has been running for a while, its memory usage creeps up from initially 0.9% of the total memory to 1.9% and ...
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2answers
200 views

How to get server (VPS) memory usage history? [duplicate]

I am using a 512MB Ubuntu 12 VPS. I'd like to get a daily (maximum) memory consumption log, as a reference to add more memory or not. Is there a tool for this?
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2answers
79 views

Memory pegged by unknown process [duplicate]

I have some strange output from the top command on my web server. Output is ordered by %MEM: top - 13:57:43 up 13 days, 21:58, 1 user, load average: 0.00, 0.00, 0.00 Tasks: 118 total, 1 running, ...
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2answers
1k views

Where is the high load coming from?

Last night I recieved a lot of messages from DirectAdmin saying: load average on your system is 46.86, or some similar number. It comes with a 'top' printout, but all I can tell from that printout is ...
2
votes
1answer
2k views

Using Perfmon on Windows Server 2008 R2 Which counter value should be used for physical memory usage?

I am attempting to use Performance Monitor to set up a relevant User Defined Dataset on a Windows 2008 R2 Server. This is to track the performance costs incurred by an application that my team is ...
0
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1answer
853 views

How to know which application is consuming the ram?

I have the following process list and memory consumption (reported thru process explorer) on a 2008 R2 server with SQL, TFS and some other tools: As you can see the system is consuming 3.6 Gb but ...
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2answers
2k views

understanding and improving sphinx searchd memory usage

My company has a few servers that we dedicate to running Sphinx Search. All are CentOS 5 with about 48GB of memory and our version of searchd is 1.11. Recently I've been trying to understand why ...
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1answer
549 views

cacti graph memory usage on server

yesterday for the first time I have installed into my server cacti to view the performance of the memory of my server because sometimes go down. I have make an image of the memory usage graph. Can ...
0
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1answer
1k views

Sum of memory of few processes in top is greater than 100%

I'm trying to calculate the amount of memory used by AMP in an LAMP stack machine. top -bn1 | grep -E '(mysql|httpd|php)' | awk '{mem += $(NF-2)} END {print mem}' But the sum generated using the ...
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2answers
1k views

Avoid a crash when a process allocates too much memory?

Similar to this question, we have a computing server with 96GB of RAM that is used to run large jobs in parallel. Occasionally, the total amount of physical RAM is exceeded, which causes the server ...
0
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3answers
440 views

How do I diagnose a web server memory spike?

My web server gets inexplicable memory spikes every once in a while (before eventually crashing) and I can't figure out what is causing it or how to solve it. I've spent the whole morning looking at ...
0
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1answer
146 views

High memory consumption on my VPS [duplicate]

Possible Duplicate: Meaning of the buffers/cache line in the output of free Why is Linux reporting “free” memory strangely? I have a 12GB RAM VPS where I host a a couple of static ...
0
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0answers
722 views

how to minimize server load on ubuntu 12.04LTS

I am using ubuntu 12.04LTS server alongwith LAMP module. I configured my server with 2GB memory but after some time either I have to restart my apache2 web server and mysql process or think about ...
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votes
1answer
992 views

CentOS server RAM usage 100%

I am using Linux CentOS 5.8 VPS. But my site is so slow in last two days. When i cehcked in server's web control panel; RAM usage is 99-100 %. But when i write "top" command; there is any usage on ...
3
votes
4answers
13k views

Minimal Windows 2008 or 2012 memory usage

What are the minimal memory usage for Windows 2008 & 2012 server editions? I'm referring to all things OS-related. The machine would be a VM with a dedicated web server software, that wouldn't ...
2
votes
1answer
849 views

What is using all my memory on WordPress VPS hosting

I have a WordPress site hosted on a VPS Centos5_x64_cpanel system with 1Gb of memory. Recently I have been having a lot of issues with the site performance and emails from the hosting company stating ...
0
votes
3answers
3k views

Linux Top shows 99% Memory in Use - Is it normal? [duplicate]

Possible Duplicate: Linux high memory usage (top total mismatch) High Memory Usage on Linux Server CentOS 5.7 dedicated server. No memory intensive processes running. 12GB RAM installed. ...
0
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2answers
355 views

VMWare ESxI missing RAM memory

I have an VMWare ESXi hypervisor installed. The physical amount of RAM is 32 GB. On this hypervisor are three virtual machines. To one I gave 8 GB of RAM, to the second 1, and to the third 2. That's ...
0
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1answer
632 views

How can i find what's using the RAM in the server?

I am dealing with 32bit Windows 2003 server which was once a physical box, but now is virtualized in vmware. There are two SQL Server instances running. One is 2000 Standard, another is 2008 R2 ...
35
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3answers
3k views

Why is Linux reporting “free” memory strangely?

This is a canonical question about how Unix operating systems report memory usage. Similar Questions: Server refuses to use swap partition Memory Usage in LINUX I have production ...
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votes
2answers
830 views

Throttling Postfix memory

I have a VPS on 1and1 similar to this configuration (512MB, burst up to 2GB). I run a web service where I crawl the web and notify my users through email and sms when a certain online data feed ...
0
votes
1answer
605 views

web sites leaking memory? IIS 7.5 Windows server 2008 R2

I have several web sites on my windows 2008 server that have been working flawlessly for over a year. Just a few days ago I ran into an issue where my server stopped serving up pages on some of these ...
0
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2answers
511 views

/proc/meminfo: meaning of some values

Is it true when talking about values in /proc/meminfo file? [Memory used by applications] = MemTotal - (MemFree + Buffers + Cached + SwapCached)
0
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1answer
154 views

RedHat 6 VM with 8 GB RAM - who uses the memory? [duplicate]

Possible Duplicate: Why does Red Hat Linux report less free memory on the system than is actually available? after freshly rebooting the VM "top" indicates about 0.5 GB out of 8 GB RAM are ...
1
vote
1answer
340 views

Reducing memory for worker MPM in Apache

I've moved from the prefork MPM to the worker MPM due to a process limit I was hitting on my VPS. However, memory usage increased after switching over (which is odd since the worker MPM is supposed ...
2
votes
2answers
49 views

Idle VMware Guests Resource Consumption

I want to setup a number of guests with multiple CPUs (4) and at least 4Gb ram running Ubuntu Linux. These machines will mostly be idle, but from time to time their workload will require all their ...