Please replace "vertex" with "edge" below. Sorry about that.
On Tuesday, June 30, 2015 at 4:03:15 PM UTC-5, Seth wrote: > > I'm seeing a fairly significant performance regression between Julia > Version 0.4.0-dev+5008 and Julia Version 0.4.0-dev+5712 ,and I don't know > how to go about identifying what's wrong. > > I'm timing betweenness_centrality in LightGraphs.jl. It used to be among > the fastest implementations out there, but it's slipping. > > Here are some samples: > > for a 5k-node, 50k-vertex graph: > > 5008: 12.581 seconds (75506 k allocations: 5047 MB, 5.26% gc time) > 5712: 19.291 seconds (75507 k allocations: 5047 MB) > > for a 10k-node, 100k-vertex graph: > > 5008: 91.238 seconds (380 M allocations: 27234 MB, 6.21% gc time) > 5712: 100.042 seconds (380 M allocations: 27235 MB, 5.97% gc time) > > for the benchmark (a 39796-node, 301498-edge graph: > > 5008: 1238 seconds (3769 M allocations: 272 GB, 18.38% gc time) > 5712: 1515 seconds (3769 M allocations: 272 GB, 16.63% gc time) > > Any ideas on how to figure out what's going on here? Profile shows the > same lines in the same order (though for some reason 5712 is showing a lot > more internal profiling). >
