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UID:pretalx-sotm2026-C3LEQ9@pretalx.com
DTSTART;TZID=CET:20260830T115000
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DESCRIPTION:Processing such large datasets as OSM is a tricky business. In 
 this talk I would love to tell a story about a set of optimisations and tr
 icks that allowed to reduce graph building time for [Valhalla routing engi
 ne](https://github.com/valhalla/valhalla) from 22h to 7h. It's a story abo
 ut C++\, OSM and geospatial data and how obvious things can lie unnoticed 
 without a proper tooling - or how to measure performance on such scale and
  find what to fix.
DTSTAMP:20260609T184821Z
LOCATION:Guadeloupe
SUMMARY:Making world spinning faster - How we sped up Valhalla graph creati
 on in 3 times - Stefan Kizim
URL:https://pretalx.com/sotm2026/talk/C3LEQ9/
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