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Top Forums Shell Programming and Scripting script to generate core if cpu is high Post 302396783 by borderblaster on Friday 19th of February 2010 09:41:41 AM
Old 02-19-2010
script to generate core if cpu is high

Hi guys,

I need a script that will generate a core of a process when the process uses high cpu for a sustained period?

So for example if a process is using greater than 80% cpu for more than 30 minutes do "gcore /var/tmp/process.core pid"
 

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GCORE(1)						      General Commands Manual							  GCORE(1)

NAME
gcore - get core image of running process SYNOPSIS
gcore [-s][-c core] pid DESCRIPTION
gcore creates a core image of each specified process, suitable for use with adb(1). By default the core image is written to the file <pid>.core. The options are: -c Write the core file to the specified file instead of <pid>.core. -s Stop the process while creating the core image and resume it when done. This makes sure that the core dump will be in a consistent state. The process is resumed even if it was already stopped. Of course, you can obtain the same result by manually stopping the process with kill(1). The core image name was changed from core.<pid> to <pid>.core to prevent matching names like core.h and core.c when using programs such as find(1). FILES
<process-id>.core The core image. BUGS
If gcore encounters an error while creating the core image and the -s option was used the process will remain stopped. Swapped out processes and system processes (the swapper) may not be gcore'd. 4.2 Berkeley Distribution April 15, 1994 GCORE(1)
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