You are browsing a read-only backup copy of Wikitech. The primary site can be found at wikitech.wikimedia.org
performance.wikimedia.org is a site maintained by the Performance Team.
Currently hosted on webperf001 (via misc-web-lb). See also Performance/Runbook/Webperf-processor services#site.
Metric data is queried from Graphite via coal-web.
Logs are then used to generate interactive SVG flame graphs using the FlameGraph tool.