StressTestRig< maxFan > Class Template Reference

#include "/Werk/devel/lumi/tests/vault/gear/stress-test-rig.hpp"

Description

template<size_t maxFan = DEFAULT_FAN>
class vault::gear::test::StressTestRig< maxFan >

Configurable template framework for running Scheduler Stress tests Use to build a custom setup class, which is then injected to perform a specific measurement tool. Several tools and detailed customisations are available in namespace bench

• bench::BreakingPoint conducts a binary search to break a schedule
• bench::ParameterRange performs a randomised series of parametrised test runs

Definition at line 182 of file stress-test-rig.hpp.

Public Types
using	TestLoad = TestChainLoad< maxFan >
using	TestSetup = typename TestLoad::ScheduleCtx

Static Public Member Functions
template<class CONF >
static auto	with ()
	Entrance Point: build a stress test measurement setup using a dedicated TOOL class, takes the configuration CONF as template parameter and which is assumed to inherit (indirectly) from StressRig. More...

Static Public Attributes
static uint constexpr	REPETITIONS {20}

Public Attributes
BlockFlowAlloc	bFlow {}
uint	CONCURRENCY = work::Config::getDefaultComputationCapacity()
double	EPSILON = 0.01
	error bound to abort binary search
double	FAIL_LIMIT = 2.0
	delta-limit when to count a run as failure
bool	INSTRUMENTATION = true
Scheduler	scheduler {bFlow, watch}
bool	showRef = true
	calculate single threaded reference time
bool	showRes = true
	print result data
bool	showRuns = false
	print a line for each individual run
bool	showStep = true
	print a line for each binary search step
double	TRIGGER_DELTA = 2*FAIL_LIMIT
	in ms : criterion-3 average delta above this limit
double	TRIGGER_FAIL = 0.55
	%-fact: criterion-1 failures above this rate
double	TRIGGER_SDEV = FAIL_LIMIT
	in ms : criterion-2 standard derivation
double	UPPER_STRESS = 1.7
	starting point for the upper limit, likely to fail
EngineObserver	watch {}

Classes
struct	Launcher

Protected Member Functions
auto	testLoad (size_t nodes=64)
	Extension point: build the computation topology for this test.
auto	testSetup (TestLoad &testLoad)
	(optional) extension point: base configuration of the test ScheduleCtx More...

Additional Inherited Members
Private Member Functions inherited from NonCopyable
	NonCopyable (NonCopyable const &)=delete
NonCopyable &	operator= (NonCopyable const &)=delete

Member Function Documentation

with()

static auto with ( )

inlinestatic

Entrance Point: build a stress test measurement setup using a dedicated TOOL class, takes the configuration CONF as template parameter and which is assumed to inherit (indirectly) from StressRig.

Template Parameters

CONF	specialised subclass of StressRig with customisation

Returns

a builder to configure and then launch the actual test

Definition at line 199 of file stress-test-rig.hpp.

References Config::getDefaultComputationCapacity().

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testSetup()

auto testSetup ( TestLoad &  testLoad )

inlineprotected

(optional) extension point: base configuration of the test ScheduleCtx

Warning

the actual setup CONF is layered, beware of shadowing.

Definition at line 239 of file stress-test-rig.hpp.

References TestChainLoad< maxFan >::setupSchedule().

Referenced by SchedulerStress_test::investigateWorkProcessing(), BreakingPoint< CONF >::maybeAdaptScaleEmpirically(), and SchedulerStress_test::search_breaking_point().

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Inheritance diagram for StressTestRig< maxFan >:

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The documentation for this class was generated from the following file:

• stress-test-rig.hpp