dpdk.lua File Reference

DPDK ... More...

Go to the source code of this file.

Functions
function mod	init ()
	Inits DPDK. Called by MoonGen on startup.
function task	wait ()
	Wait for a task and return any arguments returned by the task.
function mod	launchLuaOnCore (core,...)
	Launch a LuaJIT VM on a core with the given arguments. More...
function mod	launchLua (...)
	launches the lua file on the first free core
function mod	waitForSlaves ()
	waits until all slave cores have finished their jobs
function mod	getCycles ()
	get the CPU's TSC
function mod	getCyclesFrequency ()
	get the TSC frequency
function mod	getTime ()
	gets the time in seconds
function mod	setRuntime (time)
	set total run time of the test (to be called from master core on startup, shared between all cores)
function mod	running (extraTime)
	Returns false once the app receives SIGTERM or SIGINT, the time set via setRuntime expires, or when a thread calls dpdk.stop().
function mod	stop ()
	request all tasks to exit
function mod	sleepMillis (t)
	Delay by t milliseconds. More...
function mod	sleepMicros (t)
	Delay by t microseconds. More...
function mod	sleepMillisIdle (t)
	Sleep by t milliseconds by calling usleep().
function mod	sleepMicrosIdle (t)
	Sleep by t microseconds by calling usleep().
function mod	getCore ()
	Get the core and socket id for the current thread.

Variables
local	mod = {}
	high-level dpdk wrapper

Detailed Description

DPDK ...

Todo:

TODO docu

Definition in file dpdk.lua.

Function Documentation

function mod launchLuaOnCore	(	core	,
			...
	)

Launch a LuaJIT VM on a core with the given arguments.

TODO: use proper serialization and only pass strings

function mod sleepMicros

(

t

)

Delay by t microseconds.

Note that this does not sleep the actual thread; the time is spent in a busy wait loop by DPDK. This means that this sleep is somewhat more accurate than relying on the OS.

function mod sleepMillis

(

t

)

Delay by t milliseconds.

Note that this does not sleep the actual thread; the time is spent in a busy wait loop by DPDK.

Examples:

l2-poisson-load-latency.lua, and quality-of-service-test.lua.