mtstress

Documentation

Overview

Usage:

mtstress [flags] <command>

The mtstress commands are:

mount       Measure latency of the Mount RPC at a fixed request rate
resolve     Measure latency of the Resolve RPC at a fixed request rate
help        Display help for commands or topics

The global flags are:

-duration=10s
  Duration for sending test traffic and measuring latency
-rate=1
  Rate, in RPCs per second, to send to the test server
-reauthenticate=false
  If true, establish a new authenticated connection for each RPC, simulating
  load from a distinct process

-alsologtostderr=true
  log to standard error as well as files
-log_backtrace_at=:0
  when logging hits line file:N, emit a stack trace
-log_dir=
  if non-empty, write log files to this directory
-logtostderr=false
  log to standard error instead of files
-max_stack_buf_size=4292608
  max size in bytes of the buffer to use for logging stack traces
-metadata=<just specify -metadata to activate>
  Displays metadata for the program and exits.
-stderrthreshold=2
  logs at or above this threshold go to stderr
-time=false
  Dump timing information to stderr before exiting the program.
-v=0
  log level for V logs
-v23.credentials=
  directory to use for storing security credentials
-v23.i18n-catalogue=
  18n catalogue files to load, comma separated
-v23.namespace.root=[/(dev.v.io:r:vprod:service:mounttabled)@ns.dev.v.io:8101]
  local namespace root; can be repeated to provided multiple roots
-v23.permissions.file=
  specify a perms file as <name>:<permsfile>
-v23.permissions.literal=
  explicitly specify the runtime perms as a JSON-encoded access.Permissions.
  Overrides all --v23.permissions.file flags.
-v23.proxy=
  object name of proxy service to use to export services across network
  boundaries
-v23.tcp.address=
  address to listen on
-v23.tcp.protocol=wsh
  protocol to listen with
-v23.vtrace.cache-size=1024
  The number of vtrace traces to store in memory.
-v23.vtrace.collect-regexp=
  Spans and annotations that match this regular expression will trigger trace
  collection.
-v23.vtrace.dump-on-shutdown=true
  If true, dump all stored traces on runtime shutdown.
-v23.vtrace.sample-rate=0
  Rate (from 0.0 to 1.0) to sample vtrace traces.
-v23.vtrace.v=0
  The verbosity level of the log messages to be captured in traces
-vmodule=
  comma-separated list of globpattern=N settings for filename-filtered logging
  (without the .go suffix).  E.g. foo/bar/baz.go is matched by patterns baz or
  *az or b* but not by bar/baz or baz.go or az or b.*
-vpath=
  comma-separated list of regexppattern=N settings for file pathname-filtered
  logging (without the .go suffix).  E.g. foo/bar/baz.go is matched by patterns
  foo/bar/baz or fo.*az or oo/ba or b.z but not by foo/bar/baz.go or fo*az

Mtstress mount - Measure latency of the Mount RPC at a fixed request rate

Repeatedly issues a Mount request (at --rate) and measures latency

Usage:

mtstress mount [flags] <mountpoint> <ttl>

<mountpoint> defines the name to be mounted

<ttl> specfies the time-to-live of the mount point. For example: 5s for 5 seconds, 1m for 1 minute etc. Valid time units are "ms", "s", "m", "h".

Mtstress resolve - Measure latency of the Resolve RPC at a fixed request rate

Repeatedly issues a Resolve request (at --rate) to a name and measures latency

Usage:

mtstress resolve [flags] <name>

<name> the object name to resolve

Mtstress help - Display help for commands or topics

Help with no args displays the usage of the parent command.

Help with args displays the usage of the specified sub-command or help topic.

"help ..." recursively displays help for all commands and topics.

Usage:

mtstress help [flags] [command/topic ...]

[command/topic ...] optionally identifies a specific sub-command or help topic.

The mtstress help flags are:

-style=compact
  The formatting style for help output:
     compact   - Good for compact cmdline output.
     full      - Good for cmdline output, shows all global flags.
     godoc     - Good for godoc processing.
     shortonly - Only output short description.
  Override the default by setting the CMDLINE_STYLE environment variable.
-width=<terminal width>
  Format output to this target width in runes, or unlimited if width < 0.
  Defaults to the terminal width if available.  Override the default by setting
  the CMDLINE_WIDTH environment variable.