top is a Unix/Linux/BSD program to show what processing are running. It can show the top users of CPU or memory.
Questions tagged [top]
302 questions
0
votes
1 answer
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 ran top and was expecting to see some CPU or I/O…
BenMorel
- 4,507
- 10
- 57
- 85
0
votes
2 answers
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
Anyone know what the "analog" command means?
Matt
- 103
- 3
0
votes
1 answer
"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 really like someone to explain.
As an example of…
Josh
- 103
- 2
0
votes
3 answers
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?
Jase Whatson
- 297
- 3
- 10
0
votes
2 answers
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 could stop me from serving double the amount of the…
Alex
- 29
- 3
0
votes
2 answers
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 generally around 1.20 - 1.35.
ServerChecker
- 1,518
- 2
- 14
- 35
0
votes
5 answers
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 processes, and not anything started by anyone else.…
jho
- 131
- 5
0
votes
6 answers
Running really slow on my Linux workstation, need some assistance
I have something weird going on with my workstation, like see it says 42.1%wa, whenever I get to this it becomes so slow, any ideas what can be done, how I can identify what's causing it and all?
top - 15:44:02 up 93 days, 4:29, 16 users, load…
alexus
- 13,112
- 32
- 117
- 174
0
votes
1 answer
Seeing when was the last time a process ran in linux
Looking at top output on my linux server, I see a root owned process that is always in S mode whenever I look. How can I find out when was the last time it actually ran on a cpu and did something?
Thanks!
aaa
0
votes
1 answer
Troubleshooting why my SSH sessions hang for a couple of seconds
I'm logged in to my development box via SSH (using PuTTY on my laptop) and periodically, the session would just hang for a couple of seconds then becomes responsive again. I have not been able to narrow it down.
Network setup: server and laptop are…
Belmin Fernandez
- 10,799
- 27
- 84
- 148
0
votes
6 answers
Ubuntu Linux, interpretation of top command result
I am a newbie to Linux OS and I had trouble on my drupal based sites which had turned out to be really slow. I am using 2 separate servers for hosting and MYSQL. On preforming the top command, I got the following result
top - 06:34:26 up 17:54, 1…
Loveleen Kaur
- 115
- 7
0
votes
1 answer
What do all the numbers in `top` mean?
I've been using top command for a while, and I know what some numbers mean, but most of them are still a mystery. I would like to have an explanation about what each value means. I googled for this, and found this, but I quickly realized that the…
Ram Rachum
- 5,231
- 7
- 34
- 46
0
votes
1 answer
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 watching top for some time, when my CPU usage spikes to…
soopadoubled
- 183
- 2
- 8
0
votes
1 answer
What is normal SCSI error handling process (scsi_eh_3) CPU time usage?
Last week I got setup with a new dedicated server that is running 4x SCSI drives in RAID 10 on CentOS. The machine is pretty lightly loaded at the moment and has been running for 8 days.
The process 'scsi_eh_3' has a CPU time of 13:09.67 in top.…
Kris Jordan
- 103
- 2
0
votes
5 answers
top does not run
Sorry that I can't be very specific, only symtoms are provided:
Monday morning
a CentOS box, 1GB ram, Pentium 4
web server (thin, rails) does not response (too slow) to a browser of another PC
ping it, ok
ssh into it, ok
a few minutes later, the…
ohho
- 1,005
- 8
- 19
- 34