gistfile1.txt

def find_klass_for_id(id)
    query = "id\:#{RSolr.solr_escape(id)}"
    solr_doc = ActiveFedora::SolrService.query(query).first
    raise ActiveFedora::ObjectNotFoundError("Unable to find '#{id}'") if solr_doc.nil?
    klass = ActiveFedora::QueryResultBuilder.class_from_solr_document(solr_doc)
    "#{klass}:#{id}"
end

n = 5000

Benchmark.bm do |x|
  x.report { for i in 1..n; find_klass_for_id("f3/gt/5k/61/f3gt5k61"); end }
end
       user     system      total        real
   8.250000   2.090000  10.340000 ( 26.949549)

Benchmark.bm do |x|
  x.report { for i in 1..n; ActiveFedora::Base.load_instance_from_solr("f3/gt/5k/61/f3gt5k61"); end }
end

       user     system      total        real
  31.290000   2.140000  33.430000 ( 50.431472)