Recent telemetry data shows Nightly 63 (with the doubled size) getting about 0.9% higher cache hits than Beta 62 (with the old size), which seems within the margin of error and could also just be due to different traffic patterns. The doubled size thus gives virtually no benefit and we can revert that back.
Created attachment 8999502 [details] bug 1475781 - revert the doubled DNS cache Almost no cache hit improvement was detected.
Comment on attachment 8999502 [details] bug 1475781 - revert the doubled DNS cache Patrick McManus [:mcmanus] has approved the revision.
Attachment #8999502 - Flags: review+
Pushed by email@example.com: https://hg.mozilla.org/integration/autoland/rev/4c7aa5c4ea2f revert the doubled DNS cache r=mcmanus
Status: NEW → RESOLVED
Last Resolved: 5 months ago
status-firefox63: --- → fixed
Resolution: --- → FIXED
Target Milestone: --- → mozilla63
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