On htop, it shows three load averages, one bold, one normal, one red. What do they signify?
By default, htop shows colored status bars for processors, memory, and swap. From left to right, the bars are colored green, blue, yellow, and red depending on some thresholds.
What does it mean when the Memory bar has a small level of green and blue, and almost all the remainder is yellow? The swap bar is empty. The color settings for htop are "default".
I'm running a Rails stack on Ubuntu.
When I call ps -AF, I get a descriptive process name set by the Apache module like
00:00:43 Rails: /var/www...
which is really helpful in diagnosing load issues.
But when I call top, the same process shows up simply as
ruby
Is there any way to get the ps -AF process name in top?
I am running top to monitor my server performance and 2 of my java processes show virtual memory of up to 800MB-1GB. Is that a bad thing?
What does virtual memory mean?
And oh btw, I have swap of 1GB and it shows 0% used. So I am confused.
Java process = 1 Tomcat server + my own java daemon Server = Ubuntu 9.10 (karmic)
I have a server that has a really high load. Nothing is jumping out at me in terms of CPU usage, and it's not swapping.
I think it's cause some processes are waiting for disk IO, and I want to see what's waiting.
Is there any programme that'll show me what processes are waiting for IO? I know about iotop but that shows what's currently doing IO.
Or is this a silly question? (If so explain how :) )