Hello,
Confluence 5.4.4 - MS SQl 2008 R2.
After upgrading to 5.4.4 a page which uses the contentByLabel macro with "Dispalay Excerpts"enabled fails to load, with a XHML timeout error (timeout after 120 seconds). It would appear around 900 pages are being returned. In version 5.1.5 the page loaded with the excerpts displayed, has some thing the new search impacted performance.