again on bad performance

Started by Luis Alberto Amigo Navarroalmost 24 years ago2 messages
#1Luis Alberto Amigo Navarro
lamigo@atc.unican.es
1 attachment(s)

here is a graph with the output for 5 streams, remember it has 8 cpus
Regards

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#2Luis Alberto Amigo Navarro
lamigo@atc.unican.es
In reply to: Luis Alberto Amigo Navarro (#1)
Re: again on bad performance

yes, it is done with cvd, this tool is part of speedshop utilities that are
included on Irix.
They use hardware counters and stack registers to obtain data, it drops
about 5% performance (all marked as system)
thanks and regards