560 lines
20 KiB
Groff
560 lines
20 KiB
Groff
|
'\" t
|
||
|
.TH "CARGO\-BENCH" "1"
|
||
|
.nh
|
||
|
.ad l
|
||
|
.ss \n[.ss] 0
|
||
|
.SH "NAME"
|
||
|
cargo\-bench \[em] Execute benchmarks of a package
|
||
|
.SH "SYNOPSIS"
|
||
|
\fBcargo bench\fR [\fIoptions\fR] [\fIbenchname\fR] [\fB\-\-\fR \fIbench\-options\fR]
|
||
|
.SH "DESCRIPTION"
|
||
|
Compile and execute benchmarks.
|
||
|
.sp
|
||
|
The benchmark filtering argument \fIbenchname\fR and all the arguments following
|
||
|
the two dashes (\fB\-\-\fR) are passed to the benchmark binaries and thus to
|
||
|
\fIlibtest\fR (rustc\[cq]s built in unit\-test and micro\-benchmarking framework). If
|
||
|
you are passing arguments to both Cargo and the binary, the ones after \fB\-\-\fR go
|
||
|
to the binary, the ones before go to Cargo. For details about libtest\[cq]s
|
||
|
arguments see the output of \fBcargo bench \-\- \-\-help\fR and check out the rustc
|
||
|
book\[cq]s chapter on how tests work at
|
||
|
<https://doc.rust\-lang.org/rustc/tests/index.html>\&.
|
||
|
.sp
|
||
|
As an example, this will run only the benchmark named \fBfoo\fR (and skip other
|
||
|
similarly named benchmarks like \fBfoobar\fR):
|
||
|
.sp
|
||
|
.RS 4
|
||
|
.nf
|
||
|
cargo bench \-\- foo \-\-exact
|
||
|
.fi
|
||
|
.RE
|
||
|
.sp
|
||
|
Benchmarks are built with the \fB\-\-test\fR option to \fBrustc\fR which creates a
|
||
|
special executable by linking your code with libtest. The executable
|
||
|
automatically runs all functions annotated with the \fB#[bench]\fR attribute.
|
||
|
Cargo passes the \fB\-\-bench\fR flag to the test harness to tell it to run
|
||
|
only benchmarks, regardless of whether the harness is libtest or a custom harness.
|
||
|
.sp
|
||
|
The libtest harness may be disabled by setting \fBharness = false\fR in the target
|
||
|
manifest settings, in which case your code will need to provide its own \fBmain\fR
|
||
|
function to handle running benchmarks.
|
||
|
.RS 3
|
||
|
.ll -5
|
||
|
.sp
|
||
|
\fBNote\fR: The
|
||
|
\fI\f(BI#[bench]\fI attribute\fR <https://doc.rust\-lang.org/nightly/unstable\-book/library\-features/test.html>
|
||
|
is currently unstable and only available on the
|
||
|
\fInightly channel\fR <https://doc.rust\-lang.org/book/appendix\-07\-nightly\-rust.html>\&.
|
||
|
There are some packages available on
|
||
|
\fIcrates.io\fR <https://crates.io/keywords/benchmark> that may help with
|
||
|
running benchmarks on the stable channel, such as
|
||
|
\fICriterion\fR <https://crates.io/crates/criterion>\&.
|
||
|
.br
|
||
|
.RE
|
||
|
.ll
|
||
|
.sp
|
||
|
By default, \fBcargo bench\fR uses the \fI\f(BIbench\fI profile\fR <https://doc.rust\-lang.org/cargo/reference/profiles.html#bench>, which enables
|
||
|
optimizations and disables debugging information. If you need to debug a
|
||
|
benchmark, you can use the \fB\-\-profile=dev\fR command\-line option to switch to
|
||
|
the dev profile. You can then run the debug\-enabled benchmark within a
|
||
|
debugger.
|
||
|
.SS "Working directory of benchmarks"
|
||
|
The working directory of every benchmark is set to the root directory of the
|
||
|
package the benchmark belongs to.
|
||
|
Setting the working directory of benchmarks to the package\[cq]s root directory
|
||
|
makes it possible for benchmarks to reliably access the package\[cq]s files using
|
||
|
relative paths, regardless from where \fBcargo bench\fR was executed from.
|
||
|
.SH "OPTIONS"
|
||
|
.SS "Benchmark Options"
|
||
|
.sp
|
||
|
\fB\-\-no\-run\fR
|
||
|
.RS 4
|
||
|
Compile, but don\[cq]t run benchmarks.
|
||
|
.RE
|
||
|
.sp
|
||
|
\fB\-\-no\-fail\-fast\fR
|
||
|
.RS 4
|
||
|
Run all benchmarks regardless of failure. Without this flag, Cargo will exit
|
||
|
after the first executable fails. The Rust test harness will run all benchmarks
|
||
|
within the executable to completion, this flag only applies to the executable
|
||
|
as a whole.
|
||
|
.RE
|
||
|
.SS "Package Selection"
|
||
|
By default, when no package selection options are given, the packages selected
|
||
|
depend on the selected manifest file (based on the current working directory if
|
||
|
\fB\-\-manifest\-path\fR is not given). If the manifest is the root of a workspace then
|
||
|
the workspaces default members are selected, otherwise only the package defined
|
||
|
by the manifest will be selected.
|
||
|
.sp
|
||
|
The default members of a workspace can be set explicitly with the
|
||
|
\fBworkspace.default\-members\fR key in the root manifest. If this is not set, a
|
||
|
virtual workspace will include all workspace members (equivalent to passing
|
||
|
\fB\-\-workspace\fR), and a non\-virtual workspace will include only the root crate itself.
|
||
|
.sp
|
||
|
\fB\-p\fR \fIspec\fR\[u2026],
|
||
|
\fB\-\-package\fR \fIspec\fR\[u2026]
|
||
|
.RS 4
|
||
|
Benchmark only the specified packages. See \fBcargo\-pkgid\fR(1) for the
|
||
|
SPEC format. This flag may be specified multiple times and supports common Unix
|
||
|
glob patterns like \fB*\fR, \fB?\fR and \fB[]\fR\&. However, to avoid your shell accidentally
|
||
|
expanding glob patterns before Cargo handles them, you must use single quotes or
|
||
|
double quotes around each pattern.
|
||
|
.RE
|
||
|
.sp
|
||
|
\fB\-\-workspace\fR
|
||
|
.RS 4
|
||
|
Benchmark all members in the workspace.
|
||
|
.RE
|
||
|
.sp
|
||
|
\fB\-\-all\fR
|
||
|
.RS 4
|
||
|
Deprecated alias for \fB\-\-workspace\fR\&.
|
||
|
.RE
|
||
|
.sp
|
||
|
\fB\-\-exclude\fR \fISPEC\fR\[u2026]
|
||
|
.RS 4
|
||
|
Exclude the specified packages. Must be used in conjunction with the
|
||
|
\fB\-\-workspace\fR flag. This flag may be specified multiple times and supports
|
||
|
common Unix glob patterns like \fB*\fR, \fB?\fR and \fB[]\fR\&. However, to avoid your shell
|
||
|
accidentally expanding glob patterns before Cargo handles them, you must use
|
||
|
single quotes or double quotes around each pattern.
|
||
|
.RE
|
||
|
.SS "Target Selection"
|
||
|
When no target selection options are given, \fBcargo bench\fR will build the
|
||
|
following targets of the selected packages:
|
||
|
.sp
|
||
|
.RS 4
|
||
|
\h'-04'\(bu\h'+02'lib \[em] used to link with binaries and benchmarks
|
||
|
.RE
|
||
|
.sp
|
||
|
.RS 4
|
||
|
\h'-04'\(bu\h'+02'bins (only if benchmark targets are built and required features are
|
||
|
available)
|
||
|
.RE
|
||
|
.sp
|
||
|
.RS 4
|
||
|
\h'-04'\(bu\h'+02'lib as a benchmark
|
||
|
.RE
|
||
|
.sp
|
||
|
.RS 4
|
||
|
\h'-04'\(bu\h'+02'bins as benchmarks
|
||
|
.RE
|
||
|
.sp
|
||
|
.RS 4
|
||
|
\h'-04'\(bu\h'+02'benchmark targets
|
||
|
.RE
|
||
|
.sp
|
||
|
The default behavior can be changed by setting the \fBbench\fR flag for the target
|
||
|
in the manifest settings. Setting examples to \fBbench = true\fR will build and
|
||
|
run the example as a benchmark, replacing the example\[cq]s \fBmain\fR function with
|
||
|
the libtest harness.
|
||
|
.sp
|
||
|
Setting targets to \fBbench = false\fR will stop them from being bencharmked by
|
||
|
default. Target selection options that take a target by name (such as
|
||
|
\fB\-\-example foo\fR) ignore the \fBbench\fR flag and will always benchmark the given
|
||
|
target.
|
||
|
.sp
|
||
|
See \fIConfiguring a target\fR <https://doc.rust\-lang.org/cargo/reference/cargo\-targets.html#configuring\-a\-target>
|
||
|
for more information on per\-target settings.
|
||
|
.sp
|
||
|
Binary targets are automatically built if there is an integration test or
|
||
|
benchmark being selected to benchmark. This allows an integration
|
||
|
test to execute the binary to exercise and test its behavior.
|
||
|
The \fBCARGO_BIN_EXE_<name>\fR
|
||
|
\fIenvironment variable\fR <https://doc.rust\-lang.org/cargo/reference/environment\-variables.html#environment\-variables\-cargo\-sets\-for\-crates>
|
||
|
is set when the integration test is built so that it can use the
|
||
|
\fI\f(BIenv\fI macro\fR <https://doc.rust\-lang.org/std/macro.env.html> to locate the
|
||
|
executable.
|
||
|
.sp
|
||
|
Passing target selection flags will benchmark only the specified
|
||
|
targets.
|
||
|
.sp
|
||
|
Note that \fB\-\-bin\fR, \fB\-\-example\fR, \fB\-\-test\fR and \fB\-\-bench\fR flags also
|
||
|
support common Unix glob patterns like \fB*\fR, \fB?\fR and \fB[]\fR\&. However, to avoid your
|
||
|
shell accidentally expanding glob patterns before Cargo handles them, you must
|
||
|
use single quotes or double quotes around each glob pattern.
|
||
|
.sp
|
||
|
\fB\-\-lib\fR
|
||
|
.RS 4
|
||
|
Benchmark the package\[cq]s library.
|
||
|
.RE
|
||
|
.sp
|
||
|
\fB\-\-bin\fR \fIname\fR\[u2026]
|
||
|
.RS 4
|
||
|
Benchmark the specified binary. This flag may be specified multiple times
|
||
|
and supports common Unix glob patterns.
|
||
|
.RE
|
||
|
.sp
|
||
|
\fB\-\-bins\fR
|
||
|
.RS 4
|
||
|
Benchmark all binary targets.
|
||
|
.RE
|
||
|
.sp
|
||
|
\fB\-\-example\fR \fIname\fR\[u2026]
|
||
|
.RS 4
|
||
|
Benchmark the specified example. This flag may be specified multiple times
|
||
|
and supports common Unix glob patterns.
|
||
|
.RE
|
||
|
.sp
|
||
|
\fB\-\-examples\fR
|
||
|
.RS 4
|
||
|
Benchmark all example targets.
|
||
|
.RE
|
||
|
.sp
|
||
|
\fB\-\-test\fR \fIname\fR\[u2026]
|
||
|
.RS 4
|
||
|
Benchmark the specified integration test. This flag may be specified
|
||
|
multiple times and supports common Unix glob patterns.
|
||
|
.RE
|
||
|
.sp
|
||
|
\fB\-\-tests\fR
|
||
|
.RS 4
|
||
|
Benchmark all targets in test mode that have the \fBtest = true\fR manifest
|
||
|
flag set. By default this includes the library and binaries built as
|
||
|
unittests, and integration tests. Be aware that this will also build any
|
||
|
required dependencies, so the lib target may be built twice (once as a
|
||
|
unittest, and once as a dependency for binaries, integration tests, etc.).
|
||
|
Targets may be enabled or disabled by setting the \fBtest\fR flag in the
|
||
|
manifest settings for the target.
|
||
|
.RE
|
||
|
.sp
|
||
|
\fB\-\-bench\fR \fIname\fR\[u2026]
|
||
|
.RS 4
|
||
|
Benchmark the specified benchmark. This flag may be specified multiple
|
||
|
times and supports common Unix glob patterns.
|
||
|
.RE
|
||
|
.sp
|
||
|
\fB\-\-benches\fR
|
||
|
.RS 4
|
||
|
Benchmark all targets in benchmark mode that have the \fBbench = true\fR
|
||
|
manifest flag set. By default this includes the library and binaries built
|
||
|
as benchmarks, and bench targets. Be aware that this will also build any
|
||
|
required dependencies, so the lib target may be built twice (once as a
|
||
|
benchmark, and once as a dependency for binaries, benchmarks, etc.).
|
||
|
Targets may be enabled or disabled by setting the \fBbench\fR flag in the
|
||
|
manifest settings for the target.
|
||
|
.RE
|
||
|
.sp
|
||
|
\fB\-\-all\-targets\fR
|
||
|
.RS 4
|
||
|
Benchmark all targets. This is equivalent to specifying \fB\-\-lib \-\-bins \-\-tests \-\-benches \-\-examples\fR\&.
|
||
|
.RE
|
||
|
.SS "Feature Selection"
|
||
|
The feature flags allow you to control which features are enabled. When no
|
||
|
feature options are given, the \fBdefault\fR feature is activated for every
|
||
|
selected package.
|
||
|
.sp
|
||
|
See \fIthe features documentation\fR <https://doc.rust\-lang.org/cargo/reference/features.html#command\-line\-feature\-options>
|
||
|
for more details.
|
||
|
.sp
|
||
|
\fB\-F\fR \fIfeatures\fR,
|
||
|
\fB\-\-features\fR \fIfeatures\fR
|
||
|
.RS 4
|
||
|
Space or comma separated list of features to activate. Features of workspace
|
||
|
members may be enabled with \fBpackage\-name/feature\-name\fR syntax. This flag may
|
||
|
be specified multiple times, which enables all specified features.
|
||
|
.RE
|
||
|
.sp
|
||
|
\fB\-\-all\-features\fR
|
||
|
.RS 4
|
||
|
Activate all available features of all selected packages.
|
||
|
.RE
|
||
|
.sp
|
||
|
\fB\-\-no\-default\-features\fR
|
||
|
.RS 4
|
||
|
Do not activate the \fBdefault\fR feature of the selected packages.
|
||
|
.RE
|
||
|
.SS "Compilation Options"
|
||
|
.sp
|
||
|
\fB\-\-target\fR \fItriple\fR
|
||
|
.RS 4
|
||
|
Benchmark for the given architecture. The default is the host architecture. The general format of the triple is
|
||
|
\fB<arch><sub>\-<vendor>\-<sys>\-<abi>\fR\&. Run \fBrustc \-\-print target\-list\fR for a
|
||
|
list of supported targets. This flag may be specified multiple times.
|
||
|
.sp
|
||
|
This may also be specified with the \fBbuild.target\fR
|
||
|
\fIconfig value\fR <https://doc.rust\-lang.org/cargo/reference/config.html>\&.
|
||
|
.sp
|
||
|
Note that specifying this flag makes Cargo run in a different mode where the
|
||
|
target artifacts are placed in a separate directory. See the
|
||
|
\fIbuild cache\fR <https://doc.rust\-lang.org/cargo/guide/build\-cache.html> documentation for more details.
|
||
|
.RE
|
||
|
.sp
|
||
|
\fB\-\-profile\fR \fIname\fR
|
||
|
.RS 4
|
||
|
Benchmark with the given profile.
|
||
|
See \fIthe reference\fR <https://doc.rust\-lang.org/cargo/reference/profiles.html> for more details on profiles.
|
||
|
.RE
|
||
|
.sp
|
||
|
\fB\-\-timings=\fR\fIfmts\fR
|
||
|
.RS 4
|
||
|
Output information how long each compilation takes, and track concurrency
|
||
|
information over time. Accepts an optional comma\-separated list of output
|
||
|
formats; \fB\-\-timings\fR without an argument will default to \fB\-\-timings=html\fR\&.
|
||
|
Specifying an output format (rather than the default) is unstable and requires
|
||
|
\fB\-Zunstable\-options\fR\&. Valid output formats:
|
||
|
.sp
|
||
|
.RS 4
|
||
|
\h'-04'\(bu\h'+02'\fBhtml\fR (unstable, requires \fB\-Zunstable\-options\fR): Write a human\-readable file \fBcargo\-timing.html\fR to the
|
||
|
\fBtarget/cargo\-timings\fR directory with a report of the compilation. Also write
|
||
|
a report to the same directory with a timestamp in the filename if you want
|
||
|
to look at older runs. HTML output is suitable for human consumption only,
|
||
|
and does not provide machine\-readable timing data.
|
||
|
.RE
|
||
|
.sp
|
||
|
.RS 4
|
||
|
\h'-04'\(bu\h'+02'\fBjson\fR (unstable, requires \fB\-Zunstable\-options\fR): Emit machine\-readable JSON
|
||
|
information about timing information.
|
||
|
.RE
|
||
|
.RE
|
||
|
.SS "Output Options"
|
||
|
.sp
|
||
|
\fB\-\-target\-dir\fR \fIdirectory\fR
|
||
|
.RS 4
|
||
|
Directory for all generated artifacts and intermediate files. May also be
|
||
|
specified with the \fBCARGO_TARGET_DIR\fR environment variable, or the
|
||
|
\fBbuild.target\-dir\fR \fIconfig value\fR <https://doc.rust\-lang.org/cargo/reference/config.html>\&.
|
||
|
Defaults to \fBtarget\fR in the root of the workspace.
|
||
|
.RE
|
||
|
.SS "Display Options"
|
||
|
By default the Rust test harness hides output from benchmark execution to keep
|
||
|
results readable. Benchmark output can be recovered (e.g., for debugging) by
|
||
|
passing \fB\-\-nocapture\fR to the benchmark binaries:
|
||
|
.sp
|
||
|
.RS 4
|
||
|
.nf
|
||
|
cargo bench \-\- \-\-nocapture
|
||
|
.fi
|
||
|
.RE
|
||
|
.sp
|
||
|
\fB\-v\fR,
|
||
|
\fB\-\-verbose\fR
|
||
|
.RS 4
|
||
|
Use verbose output. May be specified twice for \[lq]very verbose\[rq] output which
|
||
|
includes extra output such as dependency warnings and build script output.
|
||
|
May also be specified with the \fBterm.verbose\fR
|
||
|
\fIconfig value\fR <https://doc.rust\-lang.org/cargo/reference/config.html>\&.
|
||
|
.RE
|
||
|
.sp
|
||
|
\fB\-q\fR,
|
||
|
\fB\-\-quiet\fR
|
||
|
.RS 4
|
||
|
Do not print cargo log messages.
|
||
|
May also be specified with the \fBterm.quiet\fR
|
||
|
\fIconfig value\fR <https://doc.rust\-lang.org/cargo/reference/config.html>\&.
|
||
|
.RE
|
||
|
.sp
|
||
|
\fB\-\-color\fR \fIwhen\fR
|
||
|
.RS 4
|
||
|
Control when colored output is used. Valid values:
|
||
|
.sp
|
||
|
.RS 4
|
||
|
\h'-04'\(bu\h'+02'\fBauto\fR (default): Automatically detect if color support is available on the
|
||
|
terminal.
|
||
|
.RE
|
||
|
.sp
|
||
|
.RS 4
|
||
|
\h'-04'\(bu\h'+02'\fBalways\fR: Always display colors.
|
||
|
.RE
|
||
|
.sp
|
||
|
.RS 4
|
||
|
\h'-04'\(bu\h'+02'\fBnever\fR: Never display colors.
|
||
|
.RE
|
||
|
.sp
|
||
|
May also be specified with the \fBterm.color\fR
|
||
|
\fIconfig value\fR <https://doc.rust\-lang.org/cargo/reference/config.html>\&.
|
||
|
.RE
|
||
|
.sp
|
||
|
\fB\-\-message\-format\fR \fIfmt\fR
|
||
|
.RS 4
|
||
|
The output format for diagnostic messages. Can be specified multiple times
|
||
|
and consists of comma\-separated values. Valid values:
|
||
|
.sp
|
||
|
.RS 4
|
||
|
\h'-04'\(bu\h'+02'\fBhuman\fR (default): Display in a human\-readable text format. Conflicts with
|
||
|
\fBshort\fR and \fBjson\fR\&.
|
||
|
.RE
|
||
|
.sp
|
||
|
.RS 4
|
||
|
\h'-04'\(bu\h'+02'\fBshort\fR: Emit shorter, human\-readable text messages. Conflicts with \fBhuman\fR
|
||
|
and \fBjson\fR\&.
|
||
|
.RE
|
||
|
.sp
|
||
|
.RS 4
|
||
|
\h'-04'\(bu\h'+02'\fBjson\fR: Emit JSON messages to stdout. See
|
||
|
\fIthe reference\fR <https://doc.rust\-lang.org/cargo/reference/external\-tools.html#json\-messages>
|
||
|
for more details. Conflicts with \fBhuman\fR and \fBshort\fR\&.
|
||
|
.RE
|
||
|
.sp
|
||
|
.RS 4
|
||
|
\h'-04'\(bu\h'+02'\fBjson\-diagnostic\-short\fR: Ensure the \fBrendered\fR field of JSON messages contains
|
||
|
the \[lq]short\[rq] rendering from rustc. Cannot be used with \fBhuman\fR or \fBshort\fR\&.
|
||
|
.RE
|
||
|
.sp
|
||
|
.RS 4
|
||
|
\h'-04'\(bu\h'+02'\fBjson\-diagnostic\-rendered\-ansi\fR: Ensure the \fBrendered\fR field of JSON messages
|
||
|
contains embedded ANSI color codes for respecting rustc\[cq]s default color
|
||
|
scheme. Cannot be used with \fBhuman\fR or \fBshort\fR\&.
|
||
|
.RE
|
||
|
.sp
|
||
|
.RS 4
|
||
|
\h'-04'\(bu\h'+02'\fBjson\-render\-diagnostics\fR: Instruct Cargo to not include rustc diagnostics
|
||
|
in JSON messages printed, but instead Cargo itself should render the
|
||
|
JSON diagnostics coming from rustc. Cargo\[cq]s own JSON diagnostics and others
|
||
|
coming from rustc are still emitted. Cannot be used with \fBhuman\fR or \fBshort\fR\&.
|
||
|
.RE
|
||
|
.RE
|
||
|
.SS "Manifest Options"
|
||
|
.sp
|
||
|
\fB\-\-manifest\-path\fR \fIpath\fR
|
||
|
.RS 4
|
||
|
Path to the \fBCargo.toml\fR file. By default, Cargo searches for the
|
||
|
\fBCargo.toml\fR file in the current directory or any parent directory.
|
||
|
.RE
|
||
|
.sp
|
||
|
\fB\-\-ignore\-rust\-version\fR
|
||
|
.RS 4
|
||
|
Ignore \fBrust\-version\fR specification in packages.
|
||
|
.RE
|
||
|
.sp
|
||
|
\fB\-\-locked\fR
|
||
|
.RS 4
|
||
|
Asserts that the exact same dependencies and versions are used as when the
|
||
|
existing \fBCargo.lock\fR file was originally generated. Cargo will exit with an
|
||
|
error when either of the following scenarios arises:
|
||
|
.sp
|
||
|
.RS 4
|
||
|
\h'-04'\(bu\h'+02'The lock file is missing.
|
||
|
.RE
|
||
|
.sp
|
||
|
.RS 4
|
||
|
\h'-04'\(bu\h'+02'Cargo attempted to change the lock file due to a different dependency resolution.
|
||
|
.RE
|
||
|
.sp
|
||
|
It may be used in environments where deterministic builds are desired,
|
||
|
such as in CI pipelines.
|
||
|
.RE
|
||
|
.sp
|
||
|
\fB\-\-offline\fR
|
||
|
.RS 4
|
||
|
Prevents Cargo from accessing the network for any reason. Without this
|
||
|
flag, Cargo will stop with an error if it needs to access the network and
|
||
|
the network is not available. With this flag, Cargo will attempt to
|
||
|
proceed without the network if possible.
|
||
|
.sp
|
||
|
Beware that this may result in different dependency resolution than online
|
||
|
mode. Cargo will restrict itself to crates that are downloaded locally, even
|
||
|
if there might be a newer version as indicated in the local copy of the index.
|
||
|
See the \fBcargo\-fetch\fR(1) command to download dependencies before going
|
||
|
offline.
|
||
|
.sp
|
||
|
May also be specified with the \fBnet.offline\fR \fIconfig value\fR <https://doc.rust\-lang.org/cargo/reference/config.html>\&.
|
||
|
.RE
|
||
|
.sp
|
||
|
\fB\-\-frozen\fR
|
||
|
.RS 4
|
||
|
Equivalent to specifying both \fB\-\-locked\fR and \fB\-\-offline\fR\&.
|
||
|
.RE
|
||
|
.SS "Common Options"
|
||
|
.sp
|
||
|
\fB+\fR\fItoolchain\fR
|
||
|
.RS 4
|
||
|
If Cargo has been installed with rustup, and the first argument to \fBcargo\fR
|
||
|
begins with \fB+\fR, it will be interpreted as a rustup toolchain name (such
|
||
|
as \fB+stable\fR or \fB+nightly\fR).
|
||
|
See the \fIrustup documentation\fR <https://rust\-lang.github.io/rustup/overrides.html>
|
||
|
for more information about how toolchain overrides work.
|
||
|
.RE
|
||
|
.sp
|
||
|
\fB\-\-config\fR \fIKEY=VALUE\fR or \fIPATH\fR
|
||
|
.RS 4
|
||
|
Overrides a Cargo configuration value. The argument should be in TOML syntax of \fBKEY=VALUE\fR,
|
||
|
or provided as a path to an extra configuration file. This flag may be specified multiple times.
|
||
|
See the \fIcommand\-line overrides section\fR <https://doc.rust\-lang.org/cargo/reference/config.html#command\-line\-overrides> for more information.
|
||
|
.RE
|
||
|
.sp
|
||
|
\fB\-C\fR \fIPATH\fR
|
||
|
.RS 4
|
||
|
Changes the current working directory before executing any specified operations. This affects
|
||
|
things like where cargo looks by default for the project manifest (\fBCargo.toml\fR), as well as
|
||
|
the directories searched for discovering \fB\&.cargo/config.toml\fR, for example. This option must
|
||
|
appear before the command name, for example \fBcargo \-C path/to/my\-project build\fR\&.
|
||
|
.sp
|
||
|
This option is only available on the \fInightly
|
||
|
channel\fR <https://doc.rust\-lang.org/book/appendix\-07\-nightly\-rust.html> and
|
||
|
requires the \fB\-Z unstable\-options\fR flag to enable (see
|
||
|
\fI#10098\fR <https://github.com/rust\-lang/cargo/issues/10098>).
|
||
|
.RE
|
||
|
.sp
|
||
|
\fB\-h\fR,
|
||
|
\fB\-\-help\fR
|
||
|
.RS 4
|
||
|
Prints help information.
|
||
|
.RE
|
||
|
.sp
|
||
|
\fB\-Z\fR \fIflag\fR
|
||
|
.RS 4
|
||
|
Unstable (nightly\-only) flags to Cargo. Run \fBcargo \-Z help\fR for details.
|
||
|
.RE
|
||
|
.SS "Miscellaneous Options"
|
||
|
The \fB\-\-jobs\fR argument affects the building of the benchmark executable but
|
||
|
does not affect how many threads are used when running the benchmarks. The
|
||
|
Rust test harness runs benchmarks serially in a single thread.
|
||
|
.sp
|
||
|
\fB\-j\fR \fIN\fR,
|
||
|
\fB\-\-jobs\fR \fIN\fR
|
||
|
.RS 4
|
||
|
Number of parallel jobs to run. May also be specified with the
|
||
|
\fBbuild.jobs\fR \fIconfig value\fR <https://doc.rust\-lang.org/cargo/reference/config.html>\&. Defaults to
|
||
|
the number of logical CPUs. If negative, it sets the maximum number of
|
||
|
parallel jobs to the number of logical CPUs plus provided value. If
|
||
|
a string \fBdefault\fR is provided, it sets the value back to defaults.
|
||
|
Should not be 0.
|
||
|
.RE
|
||
|
.sp
|
||
|
While \fBcargo bench\fR involves compilation, it does not provide a \fB\-\-keep\-going\fR
|
||
|
flag. Use \fB\-\-no\-fail\-fast\fR to run as many benchmarks as possible without
|
||
|
stopping at the first failure. To \[lq]compile\[rq] as many benchmarks as possible, use
|
||
|
\fB\-\-benches\fR to build benchmark binaries separately. For example:
|
||
|
.sp
|
||
|
.RS 4
|
||
|
.nf
|
||
|
cargo build \-\-benches \-\-release \-\-keep\-going
|
||
|
cargo bench \-\-no\-fail\-fast
|
||
|
.fi
|
||
|
.RE
|
||
|
.SH "ENVIRONMENT"
|
||
|
See \fIthe reference\fR <https://doc.rust\-lang.org/cargo/reference/environment\-variables.html> for
|
||
|
details on environment variables that Cargo reads.
|
||
|
.SH "EXIT STATUS"
|
||
|
.sp
|
||
|
.RS 4
|
||
|
\h'-04'\(bu\h'+02'\fB0\fR: Cargo succeeded.
|
||
|
.RE
|
||
|
.sp
|
||
|
.RS 4
|
||
|
\h'-04'\(bu\h'+02'\fB101\fR: Cargo failed to complete.
|
||
|
.RE
|
||
|
.SH "EXAMPLES"
|
||
|
.sp
|
||
|
.RS 4
|
||
|
\h'-04' 1.\h'+01'Build and execute all the benchmarks of the current package:
|
||
|
.sp
|
||
|
.RS 4
|
||
|
.nf
|
||
|
cargo bench
|
||
|
.fi
|
||
|
.RE
|
||
|
.RE
|
||
|
.sp
|
||
|
.RS 4
|
||
|
\h'-04' 2.\h'+01'Run only a specific benchmark within a specific benchmark target:
|
||
|
.sp
|
||
|
.RS 4
|
||
|
.nf
|
||
|
cargo bench \-\-bench bench_name \-\- modname::some_benchmark
|
||
|
.fi
|
||
|
.RE
|
||
|
.RE
|
||
|
.SH "SEE ALSO"
|
||
|
\fBcargo\fR(1), \fBcargo\-test\fR(1)
|