2
votes
1answer
113 views

Our RAM usage is high, including -/+ buffer/cache, but top has no answers

We are running CentOS 6 with a PHP web application. After we pushed a new version live it seems we have a memory issue, however top does not show any high usage instances. I have looked around and ...
-1
votes
1answer
77 views

Top not accurately showing memory usage [duplicate]

Top is not showing my memory usage accurately or is my VPS provider doing something strange? As you see in the picture bellow it uses 90%+ of the memory, but when you look at what processes that is ...
0
votes
0answers
75 views

Higher load, but no higher CPU usage

On one of our production servers, the "load" as reported by cacti, has suddenly increased. Usually on our servers the load is about proportional to the CPU usage. However, this time the load has ...
-1
votes
3answers
463 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 ...
1
vote
1answer
255 views

Linux top not tallying with java used memory

We have a java application where towards the last part of the codes we wrote these lines Runtime runtime = Runtime.getRuntime(); long memory = runtime.totalMemory() - runtime.freeMemory(); ...
1
vote
1answer
259 views

High Steal Time utilization on Apache Linux Server

I have a CentOS "development / testing" server that runs extremely slowly. It's running Apache and Mysql using PHP. Top reports that 98% of the CPU utilization is frequently spent on "st" - Steal ...
1
vote
4answers
2k views

Apache uses up a lot of CPU for small website

I have a CentOS 5.5 VPS server with 512MB RAM setup. There is 1 website hosted on it through Apache/PHP/MySQL which is built in Magento, a popular ecommerce framework. When I browse the website, it ...
2
votes
1answer
113 views

Our web server grinds to a halt when making XMLRPC requests. Please analyse my `top` output to see what's wrong

This a shared web server for our office and normally runs just fine with a few devs working on it simultaneously. However, I've recently started working with it using Wordpress and it's XMLRPC API ...
2
votes
2answers
2k views

CentOS server. What does it mean when the total used RAM does not equal the sum of RES?

I'm having a problem with a virtual hosted server running CentOS. In the past month a process (java based) that had been running fine started having problems getting memory when the JVM was started. ...
0
votes
1answer
1k views

CPU load on CentOS Plesk server between 50-100% but processes only add up to around 10%

I've got a CentOS based Plesk VPS which keeps on slowing to a crawl. I checked what was happening with top, and found my load averages seem to be frequently spiking to very high numbers. After ...
3
votes
3answers
4k views

Why does 'top' indicate low memory usage, whilst 'free' indicates high memory usage?

Why does 'top' indicate low memory usage, whilst 'free' indicates high memory usage? Mem: 262144k total, 225708k used, 36436k free, 47948k buffers Swap: 262136k total, 40k used, ...
0
votes
1answer
691 views

Is my centOS dedicated server caching disk files appropriately, or not?

Here's the head of the top output from my centOS 5 server, at a moment with very low load. What I want to know is whether it is using its free memory wisely to cache files from disk. Of 2G of RAM, ...