Good catch Kev. Mark, If you run the same operation with map removed, what is the performance at that point?*
<http://www.loomlearning.com/> Jonathan Langevin Systems Administrator Loom Inc. Wilmington, NC: (910) 241-0433 - jlange...@loomlearning.com - www.loomlearning.com - Skype: intel352 * On Tue, Aug 30, 2011 at 2:45 PM, Kev Burns <kevburn...@gmail.com> wrote: > Mark, > > That's not just a link walk, you're also performing a map operation there. > > $client->add($bucketname, 'linkkey1')-> > link()-> > map(array("riak_kv_mapreduce", "map_object_value")) -> > run(); > > > If the expected number of returned objects is small, performing the map > phase in PHP may be faster. > > - Kev > c: +001 (650) 521-7791 > > > On Tue, Aug 30, 2011 at 7:31 AM, Mark Steele <mste...@beringmedia.com>wrote: > >> Hi folks, >> >> Just want to know if I'm doing something obviously dumb here. >> >> First the (PHP) code (Sorry of the API is different from the official API, >> we're using a heavily modified version): >> >> <snip> >> $obj1 = $bucket->newObject('linkkey1', array('link1')); >> $obj2 = $bucket->newObject('linkkey2', 'dataforlinkkey2'); >> $obj1->addLink($obj2); >> $obj2->addLink($obj1); >> $obj1->store(); >> $obj2->store(); >> >> $start = microtime(true); >> $blargh = $bucket->get('linkkey2'); >> $end = microtime(true); >> printf("Took : %04f\n",$end - $start); >> >> $start = microtime(true); >> $result = >> $client->add($bucketname, 'linkkey1')-> >> link()-> >> map(array("riak_kv_mapreduce", "map_object_value")) -> >> run(); >> foreach ($result as $data) { >> //var_dump($data); >> } >> $end = microtime(true); >> printf("Took : %04f\n",$end - $start); >> <snip> >> >> So here's what I'm seeing: >> >> The simple key fetch takes 0.000661 seconds to execute, whereas the >> link-walk takes 0.042043. Ouch. Quite a bit slower. Any ways to speed >> this up? >> >> Cheers, >> >> Mark Steele >> Bering Media Inc. >> >> >> _______________________________________________ >> riak-users mailing list >> riak-users@lists.basho.com >> http://lists.basho.com/mailman/listinfo/riak-users_lists.basho.com >> >> > > _______________________________________________ > riak-users mailing list > riak-users@lists.basho.com > http://lists.basho.com/mailman/listinfo/riak-users_lists.basho.com > >
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