likwid-perfscope - Online in the Cloud

PROGRAM:

NAME

likwid-perfscope - Frontend for the timeline mode of likwid-perfctr(1) that on-the-fly
generates pictures from the measurements

SYNOPSIS

likwid-perfscope [-h] [-cores <cpu_list>] [-freq <frequency>] [-group <eventset>]

DESCRIPTION

likwid-perfscope is a command line application written in Perl that uses the timeline
daemon mode of likwid-perfctr(1) to create on-the-fly pictures with the current
measurements. It uses the feedGnuplot(1) script to send the current data to gnuplot.

OPTIONS

-h prints a help message to standard output, then exits.

-cores <cpu_list>
measures the given group on given CPUs in <cpu_list>

-freq <frequency>
reads the current performance values every <frequency>. Available suffixes are 's'
and 'ms', e.g. 500ms. Default value is 1s

-group <eventset>
defines the events and counters that should be read. Possible values can be
gathered from likwid-perfctr(1). Default is group 'FLOPS_DP'

EXAMPLE

1. Monitor double precision floating-point operations:

likwid-perfscope -group FLOPS_DP -cores 0-3 -freq 500ms

Executes likwid-perfctr on the first four cores. The values are read every 500ms are
forwarded to gnuplot using the feedGnuplot script.

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