one second delay after stat() / Linux epoll / lighttpd-r2025
Most of the time, there is one second delay between stat() is called and
some action is visible to client (e.g. 404 error written).
Attached strace files:
server.stat-cache-engine = "simple"
server.max-stat-threads = 32
server.event-handler = "linux-sysepoll"
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