1 files changed, 16 insertions, 0 deletions

diff --git a/man4/opentracker.conf.4 b/man4/opentracker.conf.4
index aa82e1d..1bd1c7a 100644
--- a/man4/opentracker.conf.4
+++ b/man4/opentracker.conf.4
@@ -42,6 +42,14 @@ in the thread that also serves TCP. See
 .Sx TUNING
 before raising it.
 .Pp
+.It listen.tcp.workers Ar threads
+Specifies how many threads accept and answer HTTP connections, for every
+listen statement that does not carry a
+.Cm workers
+option of its own. Defaults to 0, which serves them from the event loop. See
+.Sx TUNING
+before raising it.
+.Pp
 .It listen.shared Ar boolean
 Permits another process to bind the same address, for every listen statement
 that does not carry a
@@ -101,6 +109,14 @@ group only where the answer is yes.
 in the source distribution sweeps the setting against a running tracker.
 Measure on the machine that will carry the traffic.
 .Pp
+A TCP worker accepts a connection and answers it on its own stack, without
+the event loop seeing it at all; only a connection it cannot finish is handed
+over. One worker serves less than none, because accepting leaves the event
+loop's thread without anything gained in return, so the setting is worth
+either 0 or at least 2.
+.Pa tests/http_load.c
+in the source distribution drives the tracker over HTTP to measure it.
+.Pp
 On FreeBSD the
 .Xr accf_data 9
 filter has the kernel hold a new connection until data arrives on it, so the