nghttp2/doc/h2load.h2r

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.
    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 taken for request and response.
  +/- sd
    The fraction of the number of requests within standard deviation
    range (mean +/- sd) against total number of successful requests.

time for connect
  min
    The minimum time taken to connect to a server.
  max
    The maximum time taken to connect to a server.
  mean
    The mean time taken to connect to a server.
  sd
    The standard deviation of the time taken to connect to a server.
  +/- sd
    The  fraction  of  the   number  of  connections  within  standard
    deviation range (mean  +/- sd) against total  number of successful
    connections.

time for 1st byte (of (decrypted in case of TLS) application data)
  min
    The minimum time taken to get 1st byte from a server.
  max
    The maximum time taken to get 1st byte from a server.
  mean
    The mean time taken to get 1st byte from a server.
  sd
    The standard deviation of the time taken to get 1st byte from a
    server.
  +/- sd
    The fraction of the number of connections within standard
    deviation range (mean +/- sd) against total number of successful
    connections.

FLOW CONTROL
------------

h2load sets large flow control window by default, and effectively
disables flow control to avoid under utilization of server
performance.  To set smaller flow control window, use :option:`-w` and
:option:`-W` options.  For example, use ``-w16 -W16`` to set default
window size described in HTTP/2 and SPDY protocol specification.

SEE ALSO
--------

:manpage:`nghttp(1)`, :manpage:`nghttpd(1)`, :manpage:`nghttpx(1)`