If duration is missing from summary.yaml, use 0
If duration is missing from summary.yaml, use 0

michaelsevilla/teuthology,caibo2014/teuthology,SUSE/teuthology,zhouyuan/teuthology,t-miyamae/teuthology,yghannam/teuthology,robbat2/teuthology,tchaikov/teuthology,ivotron/teuthology,ceph/teuthology,dmick/teuthology,ivotron/teuthology,robbat2/teuthology,zhouyuan/teuthology,caibo2014/teuthology,dmick/teuthology,michaelsevilla/teuthology,ktdreyer/teuthology,SUSE/teuthology,dreamhost/teuthology,ktdreyer/teuthology,t-miyamae/teuthology,yghannam/teuthology,dreamhost/teuthology,tchaikov/teuthology,ceph/teuthology,SUSE/teuthology,dmick/teuthology