Tagged Questions
2
votes
0answers
32 views
How to interpret increasing SHR reported by top?
The man page for top defines SHR as:
t: SHR -- Shared Mem size (kb) The amount of shared memory used by a
task. It simply reflects memory that could be potentially shared with
other ...
1
vote
4answers
155 views
Is there any tool that I can use to monitor memory usage of each process on Linux easily?
This issue is not the same as the question on how to see the memory usage of a Linux process.
Also, the top command doesn't give the exact memory used, but just what percentage one process uses, so ...
1
vote
1answer
205 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
2answers
1k views
nginx+php-fpm help optimize configs
I have 3 servers.
First server (CPU - model name: 06/17, 2.66GHz, 4 cores, 8GB RAM) have nginx as load balancer with next config
upstream lb_mydomain {
server mydomain.ru:81 weight=2;
...
3
votes
5answers
849 views
Linux server performance profiling - how to see what caused high load
If a server is experiencing high load, I use top and similar tools to troubleshoot why. However, this is only effective if I can analyze while the server is experiencing the problem.
What are some ...
3
votes
2answers
465 views
Where does top get its CPU usage data from?
I want to write some scripts that will measure the CPU use, but top's output, while pleasant for the user, isn't really feasible for processing in a script.
3
votes
2answers
1k views
How can I tell which page is creating a high-CPU-load httpd process?
I have a LAMP server (CentOS-based MediaTemple (DV) Extreme with 2GB RAM) running a customized Wordpress+bbPress combination .
At about 30k pageviews per day the server is starting to groan. It ...
4
votes
2answers
2k views
how do you interpret output of top?
Some things in top's output are pretty straightforward, like memory and swap usage. But load average numbers are a bit of a mystery: what do these three numbers mean? Also, what exactly is a zombie ...
