The top tag has no wiki summary.
0
votes
1answer
79 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;
...
0
votes
3answers
73 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
94 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 ...
0
votes
2answers
29 views
TIME+ column in top command is inaccurate
I just ran the top command to observe the following process
chown -r me:me allMyMusic
And it's been running for about 5 minutes, however the TIME+ column in the top command has reported it as ...
3
votes
0answers
101 views
Why does top report the incorrect CPU usage? [migrated]
I have a machine with Intel(R) Xeon(R) CPU E5520 visible as 16 logical cores (8 with HT). If I run something to eat CPU time (single threaded) top correctly reports 100% CPU usage for the process but ...
0
votes
1answer
86 views
How to exclude some users from Linux Top screen?
In top screen, by default it shows all users' processes. How to exclude some users(for example, root and nobody) from the top real-time screen?
2
votes
3answers
80 views
top reports swap at 100%, free memory available
On RedHat 5 servers, we see top reporting swap has 0k free. vmstat shows the same amount of swap used, but no paging. We kill our only app, and top still reports 100% of swap used. If we reboot, ...
0
votes
2answers
103 views
Load Average cpu linux server
i have a problem with the load average on server,
I'm using on server
When I check the processor - with "top" command
I see that :
top - 04:27:37 up 39 min, 1 user, load average: 0.78, 0.77, 0.77
...
1
vote
2answers
103 views
What is using all my RAM? Understanding the output of top
I've read a number of top memory use questions but I don't think they answer this.
Here's the most significant part of a top run:
top - 01:11:41 up 4 days, 1:06, 3 users, load average: 0.00, ...
1
vote
3answers
63 views
Is it possible to filter top to show specific processes?
I'm run top and I want to always see java/tomcat/redis/mysql/mongo, is that possible?
0
votes
2answers
46 views
Top not showing processes using CPU resources
I have this output from top for the top 10 processes sorted by CPU usage descending:
top - 11:19:58 up 1:46, 2 users, load average: 3.22, 3.48, 3.34
Tasks: 66 total, 5 running, 61 sleeping, ...
1
vote
1answer
42 views
Why do I see many mongod processes running?
I am running a single MongoDB database. No sharding. When I run htop, I see a lot of instances of mongod. Is that normal? Does every connection create a separate mongod process? Should I be concerned?
...
1
vote
2answers
105 views
Ubuntu server using too much memory
my server is at a very high memory usage constantly - to the point that it won't let me log in via ssh some times. I have to reboot the server before I can log in and when it's restarted the memory ...
1
vote
0answers
49 views
How to identify which processes are waiting for I/O? [closed]
Possible Duplicate:
Linux - How can I see what's waiting for disk IO
top shows that plenty of time (98%) is spent in waiting for I/O (WA). What is the best way to identify the ...
0
votes
1answer
127 views
How do I tell real CPU load in a xen environment?
I have a Debian machine with 4 CPU cores running Xen with two virtual machines, and I'm having trouble determining overall real CPU usage.
Each machine has two VCPUs assigned to it with no cap on CPU ...
0
votes
1answer
23 views
Collect output of top command displayed with separate option
I would be grateful to you for some details about the top command output achieved using the hotkey "A". I suppose the it gives back the swap usage per PID: it is right, isn't it?
Could you please ...
1
vote
1answer
80 views
top vs vmstat on Debian squeeze/xen
I'm running a squeeze DomU on xen 4.0.1 which is completely unloaded. I notice a difference in cpu states between iostat and top like:
top (in every iter):
Cpu0 : 0.2%us, 2.0%sy, 0.0%ni, ...
2
votes
1answer
84 views
why is ubuntu lsb_release being called every 30 seconds?
I'm running ubuntu server, and I was staring at "top". lsb_release seems to pop up every 30 seconds - which in turn calls apt-cache. I don't really know where to start looking for the source of this ...
1
vote
1answer
126 views
400% CPU usage for MySQL? What? What should I do?
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
19857 mysql 20 0 514m 47m 3404 S 386 9.7 4511:45 mysqld
15659 www-data 20 0 205m 11m 4856 S 7 2.3 0:00.67 ...
2
votes
1answer
77 views
Can top show more than 100% in %MEM? [closed]
Can the %MEM value for a process show more than 100% in top output?Is this ever possible?
4
votes
2answers
98 views
Linux top command. Memory usage
I am testing my web server with Jmeter. I launch 40 users test, then dump top command.
What i see, is 40 (+1 host) apache processes. Each process uses appr. 7mb of RES memory. But 7*40 is 280 mb of ...
0
votes
1answer
48 views
100% Hardware IRQ while PHP just seems to hang for a second
I'm running the FLOW3 Quickstart on a Fedora machine (virtualized on Windows, if that helps). Each and every single request takes about 1.2 seconds to run the most simple example of this framework. I ...
0
votes
3answers
72 views
Memory Usage by Bytes Top 10
I need a way to see how many bytes to top ten processes are using not percentage.
I am using centos
1
vote
1answer
150 views
top, w, ps showing wrong CPU times
I've spotted this trait recently on some of my Ubuntu servers (10.04.2) on Amazon EC2 (not noticed this on any physical boxes), and can't quite comprehend how it's getting these figures. They can't be ...
0
votes
1answer
135 views
Problems with cron script and TERM definition using top command
I have a problem executing a cron process to check current CPU use in my server.
My script start with:
top -c -n 1 -u www-data > /tmp/kill-cpu
I can execute without problem in console, but in ...
2
votes
2answers
137 views
More in depth TOP command?
I recently came across a screenshot that looks to be using the "top" command, but it is showing a lot more in-depth info in terms of CPU usage:
The program shows detail down to which plugin in ...
0
votes
2answers
38 views
How can I identify the purpose of a process called “analog”?
I had an unusual amount of memory being used in the server and when I logged in as root and ran "top" I got this line:
13778 global 34 19 1726m 857m 336 D 1.3 85.6 1:49.89 analog
...
1
vote
2answers
194 views
memory leak? RHEL 5.5. RSS show ok, almost no free memory left, swap used heavily
i encounter a very instresting problem, and it seems that some physical may disapper quietly. i am very puzzled, so if anyone could give some help, I would be very appreciated.
here is my top show:
...
1
vote
1answer
86 views
top command indicates a different cpu usage than sar command
In my CentOS server, when I check the resources with sar command, user cpu usage is around %15 while in top command the sole 'java' process uses like %99 of cpu. sometimes it's even goes further than ...
1
vote
3answers
67 views
log first 5 rows from top output - server freezes
Could someone give a tip on how to log first 5 rows from top output? I was thinking about grep, but don't know how to pick rows.
I need to understand. What freezes server sometimes. Maybe there are ...
1
vote
1answer
103 views
CPU usage is very large in top command of Linux
I run SUSE Linux Enterprise Server 11 SP1 in a virtual machine. The hypervisor is KVM. There is 4 virtual CPU cores for the VM.
Now there is a very strange thing. In theory the maximum CPU usage ...
0
votes
1answer
49 views
“Used” memory in top larger than the VmSize of all pocesses listed in /proc/?
It used to be my understanding that top's definition of memory "use" was the number of physical pages mapped to any processes. However, recently I saw something that made me think otherwise. I'd ...
-1
votes
1answer
42 views
What does top report in a Linux-VServer
So if im logged into a linux-vserver and run the command top. Is the fields 'load average' and cpu's for the virtual server or the host machine?
0
votes
2answers
86 views
what is the best way to find the bottlenecks on my LAMP web server?
can you help me find the bottle neck on my server. In the previous question I asked on SF, I was told that memory is no problem and I have plenty of it.
I'm curious about CPU, perhaps HDs ... what ...
2
votes
3answers
189 views
my webserver with 16GB ram shows all RAM as used, but is it really, see the 'top'
I have some questions about my web server. Its a LAMP web server running centos 5.5 and php5, mysql5. The server gets hundreds (maybe thousand) of concurrent users during peak hours.
I'm trying to ...
0
votes
0answers
29 views
mysql showing 56151547d process time in top
When looking at 'top', I see the following:
558 mysql 20 0 552m 67m 3136 S 3 6.8 56151547d mysqld
This is a crazy number. What could be causing this?
Edited to add: This is on a ...
1
vote
2answers
469 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. ...
2
votes
1answer
68 views
What does the suffix 'w' and 'd' mean with 'TIME+' in top?
Here's a chunk of the top from my server:
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
18878 www-data 20 0 200m 13m 4704 S 0 0.2 0:00.07 apache2
12374 ...
3
votes
3answers
422 views
How do I increase size of Terminal on Linux
I have a 48core linux box. I would like to monitor per core cpu usage. However when I use
top and press 1 I get an error message "Sorry, terminal is not big enough"
Is there anyway I can increase ...
3
votes
7answers
316 views
High CPU load but top processes in top all around 0%
We have a server with unusual high load and cpu util, but we can't figure out why. When we run top all the procs seem to be very low cpu.
http://cl.ly/2d1g0K3q261r0R0K3e35
Is there a better way to ...
0
votes
2answers
156 views
How Can Linux Top Show 2% Idle, but Load Say 1.20?
On CentOS5, I'm seeing the 'top' command showing a hover between 20% and 2% idle, but then the load says 1.20. How can that be possible? When I type 'uptime', as well, I see 3 load numbers that are ...
2
votes
2answers
126 views
Load average at 1, even though I've stopped all services!
I have a virtual server running Debian 5 where any action is very slow (like password verification when logging in via SSH or doing su). I checked the load average, which is hovering around 1-2. Then ...
0
votes
1answer
106 views
Top command, system column
I'm not great with linux, but I do enjoy the limited exposure I have. We use a virtualised red hat server for software development, and one of the things I have to do is check who's hogging the CPU ...
3
votes
3answers
1k views
Something eats all memory (I suspect memory leak on some app). How to detect what?
I have server which runs liquidsoap+icecast bundle and simple website (httpd+mysqld). Nothing special. Visitors around 2000+ per day, with around 50 being online simultaneously on average.
Server has ...
2
votes
2answers
176 views
How do get apache display url request in Top and PS?
Is there a way to get apache to display the url that it is handling in top and ps? This would help us nail down performance issues much more faster.
Thanks.
0
votes
1answer
148 views
What do negative numbers under TIME+ in htop mean?
What do the red negative numbers I'm seeing displayed in htop mean?
Should I be worried?
2
votes
3answers
116 views
How to enable non sudo user access to top with all processes?
I use Ubuntu Server 10.04. I have users that normally don't have access to sudo. When this user is using top command he sees only processes for the current user. I added a line to /etc/sudoers:
user ...
1
vote
1answer
234 views
How can I find the source of my high load issues on Ubuntu server?
We have an Ubuntu 10.4 VPS serving a Rails site which often shows pretty high load, but doesn't have high CPU or memory numbers. Reading a lot of other questions here on Server Fault suggests to me ...
0
votes
4answers
188 views
Hiding other users' processes on top
I'm running a Debian server and giving out shell access for a handful of friends. I'd like to hide the running processes from those normal users, so that for example top only shows their own ...
1
vote
0answers
87 views
EC2 instance CPU in thousands
I started a new instance (c1.medium) and top show some crazy cpu usage
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
9561 ubuntu 20 0 84888 ...
