360 lines
9.8 KiB
Groff
360 lines
9.8 KiB
Groff
.\" Man page generated from reStructuredText.
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.TH "H2LOAD" "1" "August 30, 2015" "1.2.2-DEV" "nghttp2"
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.SH NAME
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h2load \- HTTP/2 benchmarking tool
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.
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..
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.SH SYNOPSIS
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.sp
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\fBh2load\fP [OPTIONS]... [URI]...
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.SH DESCRIPTION
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.sp
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benchmarking tool for HTTP/2 and SPDY server
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.INDENT 0.0
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.TP
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.B <URI>
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Specify URI to access. Multiple URIs can be specified.
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URIs are used in this order for each client. All URIs
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are used, then first URI is used and then 2nd URI, and
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so on. The scheme, host and port in the subsequent
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URIs, if present, are ignored. Those in the first URI
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are used solely. Definition of a base URI overrides all
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scheme, host or port values.
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.UNINDENT
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.SH OPTIONS
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.INDENT 0.0
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.TP
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.B \-n, \-\-requests=<N>
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Number of requests.
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.sp
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Default: \fB1\fP
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.UNINDENT
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.INDENT 0.0
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.TP
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.B \-c, \-\-clients=<N>
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Number of concurrent clients.
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.sp
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Default: \fB1\fP
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.UNINDENT
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.INDENT 0.0
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.TP
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.B \-t, \-\-threads=<N>
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Number of native threads.
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.sp
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Default: \fB1\fP
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.UNINDENT
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.INDENT 0.0
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.TP
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.B \-i, \-\-input\-file=<PATH>
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Path of a file with multiple URIs are separated by EOLs.
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This option will disable URIs getting from command\-line.
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If \(aq\-\(aq is given as <PATH>, URIs will be read from stdin.
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URIs are used in this order for each client. All URIs
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are used, then first URI is used and then 2nd URI, and
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so on. The scheme, host and port in the subsequent
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URIs, if present, are ignored. Those in the first URI
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are used solely. Definition of a base URI overrides all
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scheme, host or port values.
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.UNINDENT
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.INDENT 0.0
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.TP
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.B \-m, \-\-max\-concurrent\-streams=(auto|<N>)
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Max concurrent streams to issue per session. If "auto"
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is given, the number of given URIs is used.
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.sp
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Default: \fBauto\fP
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.UNINDENT
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.INDENT 0.0
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.TP
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.B \-w, \-\-window\-bits=<N>
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Sets the stream level initial window size to (2**<N>)\-1.
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For SPDY, 2**<N> is used instead.
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.sp
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Default: \fB30\fP
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.UNINDENT
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.INDENT 0.0
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.TP
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.B \-W, \-\-connection\-window\-bits=<N>
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Sets the connection level initial window size to
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(2**<N>)\-1. For SPDY, if <N> is strictly less than 16,
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this option is ignored. Otherwise 2**<N> is used for
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SPDY.
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.sp
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Default: \fB30\fP
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.UNINDENT
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.INDENT 0.0
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.TP
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.B \-H, \-\-header=<HEADER>
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Add/Override a header to the requests.
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.UNINDENT
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.INDENT 0.0
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.TP
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.B \-\-ciphers=<SUITE>
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Set allowed cipher list. The format of the string is
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described in OpenSSL ciphers(1).
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.UNINDENT
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.INDENT 0.0
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.TP
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.B \-p, \-\-no\-tls\-proto=<PROTOID>
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Specify ALPN identifier of the protocol to be used when
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accessing http URI without SSL/TLS.
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Available protocols: spdy/2, spdy/3, spdy/3.1 and h2c
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.sp
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Default: \fBh2c\fP
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.UNINDENT
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.INDENT 0.0
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.TP
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.B \-d, \-\-data=<PATH>
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Post FILE to server. The request method is changed to
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POST.
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.UNINDENT
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.INDENT 0.0
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.TP
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.B \-r, \-\-rate=<N>
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Specifies the fixed rate at which connections are
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created. The rate must be a positive integer,
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representing the number of connections to be made per
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second. When the rate is 0, the program will run as it
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normally does, creating connections at whatever variable
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rate it wants. The default value for this option is 0.
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.UNINDENT
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.INDENT 0.0
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.TP
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.B \-C, \-\-num\-conns=<N>
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Specifies the total number of connections to create.
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The total number of connections must be a positive
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integer. On each connection, \fI\%\-m\fP requests are made. The
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test stops once as soon as the <N> connections have
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either completed or failed. When the number of
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connections is 0, the program will run as it normally
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does, creating as many connections as it needs in order
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to make the \fI\%\-n\fP requests specified. The default value
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for this option is 0. The \fI\%\-n\fP option is not required if
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the \fI\%\-C\fP option is being used.
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.UNINDENT
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.INDENT 0.0
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.TP
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.B \-T, \-\-connection\-active\-timeout=<N>
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Specifies the maximum time that h2load is willing to
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keep a connection open, regardless of the activity on
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said connection. <N> must be a positive integer,
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specifying the number of seconds to wait. When no
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timeout value is set (either active or inactive), h2load
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will keep a connection open indefinitely, waiting for a
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response.
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.UNINDENT
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.INDENT 0.0
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.TP
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.B \-N, \-\-connection\-inactivity\-timeout=<N>
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Specifies the amount of time that h2load is willing to
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wait to see activity on a given connection. <N> must be
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a positive integer, specifying the number of seconds to
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wait. When no timeout value is set (either active or
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inactive), h2load will keep a connection open
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indefinitely, waiting for a response.
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.UNINDENT
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.INDENT 0.0
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.TP
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.B \-\-timing\-script\-file=<PATH>
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Path of a file containing one or more lines separated by
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EOLs. Each script line is composed of two tab\-separated
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fields. The first field represents the time offset from
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the start of execution, expressed as milliseconds with
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microsecond resolution. The second field represents the
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URI. This option will disable URIs getting from
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command\-line. If \(aq\-\(aq is given as <PATH>, script lines
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will be read from stdin. Script lines are used in order
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for each client. If \fI\%\-n\fP is given, it must be less than
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or equal to the number of script lines, larger values are
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clamped to the number of script lines. If \fI\%\-n\fP is
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not given, the number of requests will default to the
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number of script lines. The scheme, host and port defined
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in the first URI are used solely. Values contained in
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other URIs, if present, are ignored. Definition of a
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base URI overrides all scheme, host or port values.
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.UNINDENT
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.INDENT 0.0
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.TP
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.B \-B, \-\-base\-uri=<URI>
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Specify URI from which the scheme, host and port will be
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used for all requests. The base URI overrides all
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values defined either at the command line or inside
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input files.
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.UNINDENT
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.INDENT 0.0
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.TP
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.B \-v, \-\-verbose
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Output debug information.
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.UNINDENT
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.INDENT 0.0
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.TP
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.B \-\-version
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Display version information and exit.
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.UNINDENT
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.INDENT 0.0
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.TP
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.B \-h, \-\-help
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Display this help and exit.
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.UNINDENT
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.SH OUTPUT
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.INDENT 0.0
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.TP
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.B requests
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.INDENT 7.0
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.TP
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.B total
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The number of requests h2load was instructed to make.
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.TP
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.B started
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The number of requests h2load has started.
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.TP
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.B done
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The number of requests completed.
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.TP
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.B succeeded
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The number of requests completed successfully. Only HTTP status
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code 2xx or3xx are considered as success.
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.TP
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.B failed
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The number of requests failed, including HTTP level failures
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(non\-successful HTTP status code).
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.TP
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.B errored
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The number of requests failed, except for HTTP level failures.
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This is the subset of the number reported in \fBfailed\fP and most
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likely the network level failures or stream was reset by
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RST_STREAM.
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.TP
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.B timeout
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The number of requests whose connection timed out before they were
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completed. This is the subset of the number reported in
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\fBerrored\fP\&.
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.UNINDENT
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.TP
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.B status codes
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The number of status code h2load received.
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.TP
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.B traffic
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.INDENT 7.0
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.TP
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.B total
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The number of bytes received from the server "on the wire". If
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requests were made via TLS, this value is the number of decrpyted
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bytes.
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.TP
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.B headers
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The number of response header bytes from the server without
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decompression. For HTTP/2, this is the sum of the payload of
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HEADERS frame. For SPDY, this is the sum of the payload of
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SYN_REPLY frame.
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.TP
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.B data
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The number of response body bytes received from the server.
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.UNINDENT
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.TP
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.B time for request
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.INDENT 7.0
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.TP
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.B min
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The minimum time taken for request and response.
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.TP
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.B max
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The maximum time taken for request and response.
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.TP
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.B mean
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The mean time taken for request and response.
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.TP
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.B sd
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The standard deviation of the time taken for request and response.
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.TP
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.B +/\- sd
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The fraction of the number of requests within standard deviation
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range (mean +/\- sd) against total number of successful requests.
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.UNINDENT
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.TP
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.B time for connect
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.INDENT 7.0
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.TP
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.B min
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The minimum time taken to connect to a server.
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.TP
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.B max
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The maximum time taken to connect to a server.
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.TP
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.B mean
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The mean time taken to connect to a server.
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.TP
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.B sd
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The standard deviation of the time taken to connect to a server.
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.TP
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.B +/\- sd
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The fraction of the number of connections within standard
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deviation range (mean +/\- sd) against total number of successful
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connections.
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.UNINDENT
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.TP
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.B time for 1st byte (of (decrypted in case of TLS) application data)
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.INDENT 7.0
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.TP
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.B min
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The minimum time taken to get 1st byte from a server.
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.TP
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.B max
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The maximum time taken to get 1st byte from a server.
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.TP
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.B mean
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The mean time taken to get 1st byte from a server.
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.TP
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.B sd
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The standard deviation of the time taken to get 1st byte from a
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server.
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.TP
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.B +/\- sd
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The fraction of the number of connections within standard
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deviation range (mean +/\- sd) against total number of successful
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connections.
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.UNINDENT
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.UNINDENT
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.SH FLOW CONTROL
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.sp
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h2load sets large flow control window by default, and effectively
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disables flow control to avoid under utilization of server
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performance. To set smaller flow control window, use \fI\%\-w\fP and
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\fI\%\-W\fP options. For example, use \fB\-w16 \-W16\fP to set default
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window size described in HTTP/2 and SPDY protocol specification.
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.SH SEE ALSO
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.sp
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\fInghttp(1)\fP, \fInghttpd(1)\fP, \fInghttpx(1)\fP
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.SH AUTHOR
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Tatsuhiro Tsujikawa
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.SH COPYRIGHT
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2012, 2015, Tatsuhiro Tsujikawa
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.\" Generated by docutils manpage writer.
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