446 lines
13 KiB
Groff
446 lines
13 KiB
Groff
.\" Man page generated from reStructuredText.
|
|
.
|
|
.TH "H2LOAD" "1" "May 26, 2017" "1.23.0" "nghttp2"
|
|
.SH NAME
|
|
h2load \- HTTP/2 benchmarking tool
|
|
.
|
|
.nr rst2man-indent-level 0
|
|
.
|
|
.de1 rstReportMargin
|
|
\\$1 \\n[an-margin]
|
|
level \\n[rst2man-indent-level]
|
|
level margin: \\n[rst2man-indent\\n[rst2man-indent-level]]
|
|
-
|
|
\\n[rst2man-indent0]
|
|
\\n[rst2man-indent1]
|
|
\\n[rst2man-indent2]
|
|
..
|
|
.de1 INDENT
|
|
.\" .rstReportMargin pre:
|
|
. RS \\$1
|
|
. nr rst2man-indent\\n[rst2man-indent-level] \\n[an-margin]
|
|
. nr rst2man-indent-level +1
|
|
.\" .rstReportMargin post:
|
|
..
|
|
.de UNINDENT
|
|
. RE
|
|
.\" indent \\n[an-margin]
|
|
.\" old: \\n[rst2man-indent\\n[rst2man-indent-level]]
|
|
.nr rst2man-indent-level -1
|
|
.\" new: \\n[rst2man-indent\\n[rst2man-indent-level]]
|
|
.in \\n[rst2man-indent\\n[rst2man-indent-level]]u
|
|
..
|
|
.SH SYNOPSIS
|
|
.sp
|
|
\fBh2load\fP [OPTIONS]... [URI]...
|
|
.SH DESCRIPTION
|
|
.sp
|
|
benchmarking tool for HTTP/2 and SPDY server
|
|
.INDENT 0.0
|
|
.TP
|
|
.B <URI>
|
|
Specify URI to access. Multiple URIs can be specified.
|
|
URIs are used in this order for each client. All URIs
|
|
are used, then first URI is used and then 2nd URI, and
|
|
so on. The scheme, host and port in the subsequent
|
|
URIs, if present, are ignored. Those in the first URI
|
|
are used solely. Definition of a base URI overrides all
|
|
scheme, host or port values.
|
|
.UNINDENT
|
|
.SH OPTIONS
|
|
.INDENT 0.0
|
|
.TP
|
|
.B \-n, \-\-requests=<N>
|
|
Number of requests across all clients. If it is used
|
|
with \fI\%\-\-timing\-script\-file\fP option, this option specifies
|
|
the number of requests each client performs rather than
|
|
the number of requests across all clients.
|
|
.sp
|
|
Default: \fB1\fP
|
|
.UNINDENT
|
|
.INDENT 0.0
|
|
.TP
|
|
.B \-c, \-\-clients=<N>
|
|
Number of concurrent clients. With \fI\%\-r\fP option, this
|
|
specifies the maximum number of connections to be made.
|
|
.sp
|
|
Default: \fB1\fP
|
|
.UNINDENT
|
|
.INDENT 0.0
|
|
.TP
|
|
.B \-t, \-\-threads=<N>
|
|
Number of native threads.
|
|
.sp
|
|
Default: \fB1\fP
|
|
.UNINDENT
|
|
.INDENT 0.0
|
|
.TP
|
|
.B \-i, \-\-input\-file=<PATH>
|
|
Path of a file with multiple URIs are separated by EOLs.
|
|
This option will disable URIs getting from command\-line.
|
|
If \(aq\-\(aq is given as <PATH>, URIs will be read from stdin.
|
|
URIs are used in this order for each client. All URIs
|
|
are used, then first URI is used and then 2nd URI, and
|
|
so on. The scheme, host and port in the subsequent
|
|
URIs, if present, are ignored. Those in the first URI
|
|
are used solely. Definition of a base URI overrides all
|
|
scheme, host or port values.
|
|
.UNINDENT
|
|
.INDENT 0.0
|
|
.TP
|
|
.B \-m, \-\-max\-concurrent\-streams=<N>
|
|
Max concurrent streams to issue per session. When
|
|
http/1.1 is used, this specifies the number of HTTP
|
|
pipelining requests in\-flight.
|
|
.sp
|
|
Default: \fB1\fP
|
|
.UNINDENT
|
|
.INDENT 0.0
|
|
.TP
|
|
.B \-w, \-\-window\-bits=<N>
|
|
Sets the stream level initial window size to (2**<N>)\-1.
|
|
For SPDY, 2**<N> is used instead.
|
|
.sp
|
|
Default: \fB30\fP
|
|
.UNINDENT
|
|
.INDENT 0.0
|
|
.TP
|
|
.B \-W, \-\-connection\-window\-bits=<N>
|
|
Sets the connection level initial window size to
|
|
(2**<N>)\-1. For SPDY, if <N> is strictly less than 16,
|
|
this option is ignored. Otherwise 2**<N> is used for
|
|
SPDY.
|
|
.sp
|
|
Default: \fB30\fP
|
|
.UNINDENT
|
|
.INDENT 0.0
|
|
.TP
|
|
.B \-H, \-\-header=<HEADER>
|
|
Add/Override a header to the requests.
|
|
.UNINDENT
|
|
.INDENT 0.0
|
|
.TP
|
|
.B \-\-ciphers=<SUITE>
|
|
Set allowed cipher list. The format of the string is
|
|
described in OpenSSL ciphers(1).
|
|
.sp
|
|
Default: \fBECDHE\-ECDSA\-AES256\-GCM\-SHA384:ECDHE\-RSA\-AES256\-GCM\-SHA384:ECDHE\-ECDSA\-CHACHA20\-POLY1305:ECDHE\-RSA\-CHACHA20\-POLY1305:ECDHE\-ECDSA\-AES128\-GCM\-SHA256:ECDHE\-RSA\-AES128\-GCM\-SHA256:ECDHE\-ECDSA\-AES256\-SHA384:ECDHE\-RSA\-AES256\-SHA384:ECDHE\-ECDSA\-AES128\-SHA256:ECDHE\-RSA\-AES128\-SHA256\fP
|
|
.UNINDENT
|
|
.INDENT 0.0
|
|
.TP
|
|
.B \-p, \-\-no\-tls\-proto=<PROTOID>
|
|
Specify ALPN identifier of the protocol to be used when
|
|
accessing http URI without SSL/TLS.
|
|
Available protocols: h2c and
|
|
http/1.1
|
|
.sp
|
|
Default: \fBh2c\fP
|
|
.UNINDENT
|
|
.INDENT 0.0
|
|
.TP
|
|
.B \-d, \-\-data=<PATH>
|
|
Post FILE to server. The request method is changed to
|
|
POST. For http/1.1 connection, if \fI\%\-d\fP is used, the
|
|
maximum number of in\-flight pipelined requests is set to
|
|
1.
|
|
.UNINDENT
|
|
.INDENT 0.0
|
|
.TP
|
|
.B \-r, \-\-rate=<N>
|
|
Specifies the fixed rate at which connections are
|
|
created. The rate must be a positive integer,
|
|
representing the number of connections to be made per
|
|
rate period. The maximum number of connections to be
|
|
made is given in \fI\%\-c\fP option. This rate will be
|
|
distributed among threads as evenly as possible. For
|
|
example, with \fI\%\-t\fP2 and \fI\%\-r\fP4, each thread gets 2
|
|
connections per period. When the rate is 0, the program
|
|
will run as it normally does, creating connections at
|
|
whatever variable rate it wants. The default value for
|
|
this option is 0.
|
|
.UNINDENT
|
|
.INDENT 0.0
|
|
.TP
|
|
.B \-\-rate\-period=<DURATION>
|
|
Specifies the time period between creating connections.
|
|
The period must be a positive number, representing the
|
|
length of the period in time. This option is ignored if
|
|
the rate option is not used. The default value for this
|
|
option is 1s.
|
|
.UNINDENT
|
|
.INDENT 0.0
|
|
.TP
|
|
.B \-T, \-\-connection\-active\-timeout=<DURATION>
|
|
Specifies the maximum time that h2load is willing to
|
|
keep a connection open, regardless of the activity on
|
|
said connection. <DURATION> must be a positive integer,
|
|
specifying the amount of time to wait. When no timeout
|
|
value is set (either active or inactive), h2load will
|
|
keep a connection open indefinitely, waiting for a
|
|
response.
|
|
.UNINDENT
|
|
.INDENT 0.0
|
|
.TP
|
|
.B \-N, \-\-connection\-inactivity\-timeout=<DURATION>
|
|
Specifies the amount of time that h2load is willing to
|
|
wait to see activity on a given connection. <DURATION>
|
|
must be a positive integer, specifying the amount of
|
|
time to wait. When no timeout value is set (either
|
|
active or inactive), h2load will keep a connection open
|
|
indefinitely, waiting for a response.
|
|
.UNINDENT
|
|
.INDENT 0.0
|
|
.TP
|
|
.B \-\-timing\-script\-file=<PATH>
|
|
Path of a file containing one or more lines separated by
|
|
EOLs. Each script line is composed of two tab\-separated
|
|
fields. The first field represents the time offset from
|
|
the start of execution, expressed as a positive value of
|
|
milliseconds with microsecond resolution. The second
|
|
field represents the URI. This option will disable URIs
|
|
getting from command\-line. If \(aq\-\(aq is given as <PATH>,
|
|
script lines will be read from stdin. Script lines are
|
|
used in order for each client. If \fI\%\-n\fP is given, it must
|
|
be less than or equal to the number of script lines,
|
|
larger values are clamped to the number of script lines.
|
|
If \fI\%\-n\fP is not given, the number of requests will default
|
|
to the number of script lines. The scheme, host and
|
|
port defined in the first URI are used solely. Values
|
|
contained in other URIs, if present, are ignored.
|
|
Definition of a base URI overrides all scheme, host or
|
|
port values.
|
|
.UNINDENT
|
|
.INDENT 0.0
|
|
.TP
|
|
.B \-B, \-\-base\-uri=(<URI>|unix:<PATH>)
|
|
Specify URI from which the scheme, host and port will be
|
|
used for all requests. The base URI overrides all
|
|
values defined either at the command line or inside
|
|
input files. If argument starts with "unix:", then the
|
|
rest of the argument will be treated as UNIX domain
|
|
socket path. The connection is made through that path
|
|
instead of TCP. In this case, scheme is inferred from
|
|
the first URI appeared in the command line or inside
|
|
input files as usual.
|
|
.UNINDENT
|
|
.INDENT 0.0
|
|
.TP
|
|
.B \-\-npn\-list=<LIST>
|
|
Comma delimited list of ALPN protocol identifier sorted
|
|
in the order of preference. That means most desirable
|
|
protocol comes first. This is used in both ALPN and
|
|
NPN. The parameter must be delimited by a single comma
|
|
only and any white spaces are treated as a part of
|
|
protocol string.
|
|
.sp
|
|
Default: \fBh2,h2\-16,h2\-14,http/1.1\fP
|
|
.UNINDENT
|
|
.INDENT 0.0
|
|
.TP
|
|
.B \-\-h1
|
|
Short hand for \fI\%\-\-npn\-list\fP=http/1.1
|
|
\fI\%\-\-no\-tls\-proto\fP=http/1.1, which effectively force
|
|
http/1.1 for both http and https URI.
|
|
.UNINDENT
|
|
.INDENT 0.0
|
|
.TP
|
|
.B \-\-header\-table\-size=<SIZE>
|
|
Specify decoder header table size.
|
|
.sp
|
|
Default: \fB4K\fP
|
|
.UNINDENT
|
|
.INDENT 0.0
|
|
.TP
|
|
.B \-\-encoder\-header\-table\-size=<SIZE>
|
|
Specify encoder header table size. The decoder (server)
|
|
specifies the maximum dynamic table size it accepts.
|
|
Then the negotiated dynamic table size is the minimum of
|
|
this option value and the value which server specified.
|
|
.sp
|
|
Default: \fB4K\fP
|
|
.UNINDENT
|
|
.INDENT 0.0
|
|
.TP
|
|
.B \-v, \-\-verbose
|
|
Output debug information.
|
|
.UNINDENT
|
|
.INDENT 0.0
|
|
.TP
|
|
.B \-\-version
|
|
Display version information and exit.
|
|
.UNINDENT
|
|
.INDENT 0.0
|
|
.TP
|
|
.B \-h, \-\-help
|
|
Display this help and exit.
|
|
.UNINDENT
|
|
.sp
|
|
The <SIZE> argument is an integer and an optional unit (e.g., 10K is
|
|
10 * 1024). Units are K, M and G (powers of 1024).
|
|
.sp
|
|
The <DURATION> argument is an integer and an optional unit (e.g., 1s
|
|
is 1 second and 500ms is 500 milliseconds). Units are h, m, s or ms
|
|
(hours, minutes, seconds and milliseconds, respectively). If a unit
|
|
is omitted, a second is used as unit.
|
|
.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.
|
|
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.
|
|
.TP
|
|
.B timeout
|
|
The number of requests whose connection timed out before they were
|
|
completed. This is the subset of the number reported in
|
|
\fBerrored\fP\&.
|
|
.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 decrypted
|
|
bytes.
|
|
.TP
|
|
.B headers
|
|
The number of response header bytes from the server without
|
|
decompression. The \fBspace savings\fP shows efficiency of header
|
|
compression. Let \fBdecompressed(headers)\fP to the number of bytes
|
|
used for header fields after decompression. The \fBspace savings\fP
|
|
is calculated by (1 \- \fBheaders\fP / \fBdecompressed(headers)\fP) *
|
|
100. For HTTP/1.1, this is usually 0.00%, since it does not have
|
|
header compression. For HTTP/2 and SPDY, it shows some insightful
|
|
numbers.
|
|
.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 taken 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
|
|
.TP
|
|
.B time for connect
|
|
.INDENT 7.0
|
|
.TP
|
|
.B min
|
|
The minimum time taken to connect to a server.
|
|
.TP
|
|
.B max
|
|
The maximum time taken to connect to a server.
|
|
.TP
|
|
.B mean
|
|
The mean time taken to connect to a server.
|
|
.TP
|
|
.B sd
|
|
The standard deviation of the time taken to connect to a server.
|
|
.TP
|
|
.B +/\- sd
|
|
The fraction of the number of connections within standard
|
|
deviation range (mean +/\- sd) against total number of successful
|
|
connections.
|
|
.UNINDENT
|
|
.TP
|
|
.B time for 1st byte (of (decrypted in case of TLS) application data)
|
|
.INDENT 7.0
|
|
.TP
|
|
.B min
|
|
The minimum time taken to get 1st byte from a server.
|
|
.TP
|
|
.B max
|
|
The maximum time taken to get 1st byte from a server.
|
|
.TP
|
|
.B mean
|
|
The mean time taken to get 1st byte from a server.
|
|
.TP
|
|
.B sd
|
|
The standard deviation of the time taken to get 1st byte from a
|
|
server.
|
|
.TP
|
|
.B +/\- sd
|
|
The fraction of the number of connections within standard
|
|
deviation range (mean +/\- sd) against total number of successful
|
|
connections.
|
|
.UNINDENT
|
|
.TP
|
|
.B req/s
|
|
.INDENT 7.0
|
|
.TP
|
|
.B min
|
|
The minimum request per second among all clients.
|
|
.TP
|
|
.B max
|
|
The maximum request per second among all clients.
|
|
.TP
|
|
.B mean
|
|
The mean request per second among all clients.
|
|
.TP
|
|
.B sd
|
|
The standard deviation of request per second among all clients.
|
|
server.
|
|
.TP
|
|
.B +/\- sd
|
|
The fraction of the number of connections within standard
|
|
deviation range (mean +/\- sd) against total number of successful
|
|
connections.
|
|
.UNINDENT
|
|
.UNINDENT
|
|
.SH FLOW CONTROL
|
|
.sp
|
|
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 \fI\%\-w\fP and
|
|
\fI\%\-W\fP options. For example, use \fB\-w16 \-W16\fP to set default
|
|
window size described in HTTP/2 and SPDY protocol specification.
|
|
.SH SEE ALSO
|
|
.sp
|
|
\fBnghttp(1)\fP, \fBnghttpd(1)\fP, \fBnghttpx(1)\fP
|
|
.SH AUTHOR
|
|
Tatsuhiro Tsujikawa
|
|
.SH COPYRIGHT
|
|
2012, 2015, 2016, Tatsuhiro Tsujikawa
|
|
.\" Generated by docutils manpage writer.
|
|
.
|