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--- top5_cpu_processes [2015/04/01 18:47] – created luke7858
+++ top5_cpu_processes [2024/05/23 07:26] (current) – external edit 127.0.0.1
@@ Line 1: / Line 1: @@
+The following commands show you the static cpu usage of your server:
+<sxh bash>
+ps -eo user,pcpu,pid,cmd --sort:-pcpu | head -6
+</sxh>
+Shows more headers and information:
+<sxh bash>
+ps aux --sort:-pcpu | head -7
+</sxh>
+Uses the sort command of --sort
 <sxh bash>
 ps -eo user,pcpu,pid,cmd | sort -r -k2 | head -6
 </sxh>
+\\
+\\
+It is important to inspect the 'State' column when investigating processes. Below are the flat definitions:
+^ State ^ Definition ^
+| D  | uninterruptible sleep (usually IO) |
+| R  | running or runnable (on run queue) |
+| S  | interruptible sleep (waiting for an event to complete) |
+| T  | stopped, either by a job control signal or because it is being traced |
+| X  | dead (should never be seen) |
+| Z  | defunct ("zombie") process, terminated but not reaped by its parent |
+|    | |
+| <  | high-priority (not nice to other users) |
+| N  | low-priority (nice to other users) |
+| L  | has pages locked into memory (for real-time and custom IO) |
+| s  | is a session leader |
+| l  | is multi-threaded (using CLONE_THREAD, like NPTL pthreads do) |
+| +  | is in the foreground process group |