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Full Discussion: Shell Script: Run benchmark and cpustat together
Top Forums Shell Programming and Scripting Shell Script: Run benchmark and cpustat together Post 302931689 by Corona688 on Wednesday 14th of January 2015 03:56:24 PM
Old 01-14-2015
What you need is the special variable $! which is the process ID of the last thing you put in the background. You can feed that into kill to get it to kill the right program.

Don't use -9 unless you absolutely have to. It will probably respond to less severe signals and make less mess by doing so.

Code:
cpustat ... &
PID="$!"

./long-multithread-benchmark

kill -TERM "$PID"
wait

 

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LEARN ABOUT DEBIAN

mbw

mbw(1)							      General Commands Manual							    mbw(1)

NAME

       mbw - Memory BandWidth benchmark

SYNOPSIS

       mbw [options] arraysize_in_MiB

DESCRIPTION

       mbw determines available memory bandwidth by copying large arrays of data in memory.

OPTIONS

       -q     Quiet; suppress informational messages.

       -a     Suppress printing the average of each test.

       -n <number>
	      Select number of loops per test

       -t <number>
	      Select  tests  to  be  run.  If no -t parameters are given the default is to run all tests. -t0: memcpy() test, -t1: dumb (b[i]=a[i]
	      style) test, -t2: memcpy() with arbitrary block size

       -b <bytes>
	      Block size in bytes for -t2.

       -h     Show quick help.

USAGE

       mbw will allocate two arraysize arrays in memory and copy one to the other.  Reported 'bandwidth' is the amount of  data  copied  over  the
       time this operation took.

       Obviously  mbw  needs twice arraysize MiBytes (1024*1024 bytes) of physical memory - you'd better switch off swap or otherwise make sure no
       paging occurs. Needless to say that it should not be run on a busy system.

TODO

       Multiple thread support.  Better configurability, including using getopt() for parsing arguments.

AUTHOR

       andras.horvath@gmail.com

memory bandwidth benchmark					   Apr 26, 2006 							    mbw(1)
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