diff --git a/doc/h2load.1 b/doc/h2load.1
index 0618a081..4d46d085 100644
--- a/doc/h2load.1
+++ b/doc/h2load.1
@@ -1,6 +1,6 @@
 .\" Man page generated from reStructuredText.
 .
-.TH "H2LOAD" "1" "January 29, 2015" "0.7.4-DEV" "nghttp2"
+.TH "H2LOAD" "1" "February 01, 2015" "0.7.4-DEV" "nghttp2"
 .SH NAME
 h2load \- HTTP/2 benchmarking tool
 .
@@ -131,6 +131,77 @@ Display version information and exit.
 .B \-h, \-\-help
 Display this help and exit.
 .UNINDENT
+.SH OUTPUT
+.INDENT 0.0
+.TP
+.B requests
+.INDENT 7.0
+.TP
+.B total
+The number of requests h2load was instructed to make.
+.TP
+.B started
+The number of requests h2load has started.
+.TP
+.B done
+The number of requests completed.
+.TP
+.B succeeded
+The number of requests completed successfully.  Only HTTP status
+code 2xx or3xx are considered as success.
+.TP
+.B failed
+The number of requests failed, including HTTP level failures
+(non\-successful HTTP status code).
+.TP
+.B errored
+The number of requests failed, except for HTTP level failures.
+status code.  This is the subset of the number reported in
+\fBfailed\fP and most likely the network level failures or stream
+was reset by RST_STREAM.
+.UNINDENT
+.TP
+.B status codes
+The number of status code h2load received.
+.TP
+.B traffic
+.INDENT 7.0
+.TP
+.B total
+The number of bytes received from the server "on the wire".  If
+requests were made via TLS, this value is the number of decrpyted
+bytes.
+.TP
+.B headers
+The number of response header bytes from the server without
+decompression.  For HTTP/2, this is the sum of the payload of
+HEADERS frame.  For SPDY, this is the sum of the payload of
+SYN_REPLY frame.
+.TP
+.B data
+The number of response body bytes received from the server.
+.UNINDENT
+.TP
+.B time for request
+.INDENT 7.0
+.TP
+.B min
+The minimum time taken for request and response.
+.TP
+.B max
+The maximum time taken for request and response.
+.TP
+.B mean
+The mean time taken for request and response.
+.TP
+.B sd
+The standard deviation of the time for request and response.
+.TP
+.B +/\- sd
+The fraction of the number of requests within standard deviation
+range (mean +/\- sd) against total number of successful requests.
+.UNINDENT
+.UNINDENT
 .SH SEE ALSO
 .sp
 \fInghttp(1)\fP, \fInghttpd(1)\fP, \fInghttpx(1)\fP
diff --git a/doc/h2load.1.rst b/doc/h2load.1.rst
index ac447ebe..39eb1f47 100644
--- a/doc/h2load.1.rst
+++ b/doc/h2load.1.rst
@@ -96,6 +96,57 @@ OPTIONS:
 
     Display this help and exit.
 
+OUTPUT
+------
+
+requests
+  total
+    The number of requests h2load was instructed to make.
+  started
+    The number of requests h2load has started.
+  done
+    The number of requests completed.
+  succeeded
+    The number of requests completed successfully.  Only HTTP status
+    code 2xx or3xx are considered as success.
+  failed
+    The number of requests failed, including HTTP level failures
+    (non-successful HTTP status code).
+  errored
+    The number of requests failed, except for HTTP level failures.
+    status code.  This is the subset of the number reported in
+    ``failed`` and most likely the network level failures or stream
+    was reset by RST_STREAM.
+
+status codes
+  The number of status code h2load received.
+
+traffic
+  total
+    The number of bytes received from the server "on the wire".  If
+    requests were made via TLS, this value is the number of decrpyted
+    bytes.
+  headers
+    The number of response header bytes from the server without
+    decompression.  For HTTP/2, this is the sum of the payload of
+    HEADERS frame.  For SPDY, this is the sum of the payload of
+    SYN_REPLY frame.
+  data
+    The number of response body bytes received from the server.
+
+time for request
+  min
+    The minimum time taken for request and response.
+  max
+    The maximum time taken for request and response.
+  mean
+    The mean time taken for request and response.
+  sd
+    The standard deviation of the time for request and response.
+  +/- sd
+    The fraction of the number of requests within standard deviation
+    range (mean +/- sd) against total number of successful requests.
+
 SEE ALSO
 --------
 
diff --git a/doc/nghttp.1 b/doc/nghttp.1
index c332bace..1efdcd69 100644
--- a/doc/nghttp.1
+++ b/doc/nghttp.1
@@ -1,6 +1,6 @@
 .\" Man page generated from reStructuredText.
 .
-.TH "NGHTTP" "1" "January 29, 2015" "0.7.4-DEV" "nghttp2"
+.TH "NGHTTP" "1" "February 01, 2015" "0.7.4-DEV" "nghttp2"
 .SH NAME
 nghttp \- HTTP/2 experimental client
 .
diff --git a/doc/nghttpd.1 b/doc/nghttpd.1
index 3fb6b259..bf22985d 100644
--- a/doc/nghttpd.1
+++ b/doc/nghttpd.1
@@ -1,6 +1,6 @@
 .\" Man page generated from reStructuredText.
 .
-.TH "NGHTTPD" "1" "January 29, 2015" "0.7.4-DEV" "nghttp2"
+.TH "NGHTTPD" "1" "February 01, 2015" "0.7.4-DEV" "nghttp2"
 .SH NAME
 nghttpd \- HTTP/2 experimental server
 .
diff --git a/doc/nghttpx.1 b/doc/nghttpx.1
index fc75063c..39b560ed 100644
--- a/doc/nghttpx.1
+++ b/doc/nghttpx.1
@@ -1,6 +1,6 @@
 .\" Man page generated from reStructuredText.
 .
-.TH "NGHTTPX" "1" "January 29, 2015" "0.7.4-DEV" "nghttp2"
+.TH "NGHTTPX" "1" "February 01, 2015" "0.7.4-DEV" "nghttp2"
 .SH NAME
 nghttpx \- HTTP/2 experimental proxy
 .