On Fri, Jan 29, 2016 at 5:11 PM, Mithun Cy <mithun...@enterprisedb.com> wrote > > > > >I just ran some tests on above patch. Mainly to compare > >how "longer sort keys" would behave with new(Qsort) and old Algo(RS) for > sorting. > >I have 8GB of ram and ssd storage. > > > *Key length 520* > > > > > *Number of records* 3200000 6400000 12800000 25600000 > > 1.7 GB 3.5GB 7 GB 14GB > > > > > > *CASE 1* > > > > *RS* 23654.677 35172.811 44965.442 106420.155 > *Qsort* 14100.362 40612.829 101068.107 334893.391 > > > > > > *CASE 2* > > > > *RS* 13427.378 36882.898 98492.644 310670.15 > *Qsort* 12475.133 32559.074 100772.531 322080.602 > > > > > > *CASE 3* > > > > *RS* 17202.966 45163.234 122323.299 337058.856 > *Qsort* 12530.726 23343.753 59431.315 152862.837 > > > > *CASE 1* *RS* 128822.735 > > *Qsort* 90857.496 > *CSAE 2* *RS* *105631.775* > > *Qsort* *105938.334* > *CASE 3* *RS* *152301.054* > > *Qsort* *149649.347* > > Sorry forgot to mention above data in table is in unit of ms, returned by psql client.
-- Thanks and Regards Mithun C Y EnterpriseDB: http://www.enterprisedb.com
