Defines page memory policy configuration. See MemoryConfiguration.MemoryPolicies. More...

Public Member Functions
	MemoryPolicyConfiguration ()
	Initializes a new instance of the MemoryPolicyConfiguration class. More...

Public Attributes
const double	DefaultEvictionThreshold = 0.9
	The default eviction threshold. More...

const int	DefaultEmptyPagesPoolSize = 100
	The default empty pages pool size. More...

const long	DefaultInitialSize = 256 * 1024 * 1024
	The default initial size. More...

const int	DefaultSubIntervals = 5
	The default sub intervals. More...

Static Public Attributes
static readonly long	DefaultMaxSize = (long) ((long) NativeMethods.GetTotalPhysicalMemory() * 0.8)
	The default maximum size, equals to 80% of total RAM. More...

static readonly TimeSpan	DefaultRateTimeInterval = TimeSpan.FromSeconds(60)
	The default rate time interval. More...

Properties
string	Name `[get, set]`
	Gets or sets the memory policy name. Defaults to MemoryConfiguration.DefaultDefaultMemoryPolicyName. More...

long	InitialSize `[get, set]`
	Gets or sets initial memory region size defined by this memory policy. When the used memory size exceeds this value, new chunks of memory will be allocated. More...

long	MaxSize `[get, set]`
	Sets maximum memory region size defined by this memory policy. The total size should not be less than 10 MB due to internal data structures overhead. More...

string	SwapFilePath `[get, set]`
	Gets or sets the the path to the memory-mapped file the memory region defined by this memory policy will be mapped to. Having the path set, allows relying on swapping capabilities of an underlying operating system for the memory region. More...

DataPageEvictionMode	PageEvictionMode `[get, set]`
	Gets or sets the page eviction mode. If DataPageEvictionMode.Disabled is used (default) then an out of memory exception will be thrown if the memory region usage, defined by this memory policy, goes beyond MaxSize. More...

double	EvictionThreshold `[get, set]`
	Gets or sets the threshold for memory pages eviction initiation. For instance, if the threshold is 0.9 it means that the page memory will start the eviction only after 90% of the memory region (defined by this policy) is occupied. More...

int	EmptyPagesPoolSize `[get, set]`
	Gets or sets the minimal number of empty pages to be present in reuse lists for this memory policy. This parameter ensures that Ignite will be able to successfully evict old data entries when the size of (key, value) pair is slightly larger than page size / 2. Increase this parameter if cache can contain very big entries (total size of pages in this pool should be enough to contain largest cache entry). More...

bool	MetricsEnabled `[get, set]`
	Gets or sets a value indicating whether memory metrics should be enabled. More...

TimeSpan	RateTimeInterval `[get, set]`
	Gets or sets the rate time interval for IMemoryMetrics.AllocationRate and IMemoryMetrics.EvictionRate monitoring purposes. More...

int	SubIntervals `[get, set]`
	Gets or sets the number of sub intervals to split RateTimeInterval into to calculate IMemoryMetrics.AllocationRate and IMemoryMetrics.EvictionRate. More...

Detailed Description

Constructor & Destructor Documentation

Apache.Ignite.Core.Cache.Configuration.MemoryPolicyConfiguration.MemoryPolicyConfiguration ( )

Member Data Documentation

const int Apache.Ignite.Core.Cache.Configuration.MemoryPolicyConfiguration.DefaultEmptyPagesPoolSize = 100

const double Apache.Ignite.Core.Cache.Configuration.MemoryPolicyConfiguration.DefaultEvictionThreshold = 0.9

const long Apache.Ignite.Core.Cache.Configuration.MemoryPolicyConfiguration.DefaultInitialSize = 256 * 1024 * 1024

readonly long Apache.Ignite.Core.Cache.Configuration.MemoryPolicyConfiguration.DefaultMaxSize = (long) ((long) NativeMethods.GetTotalPhysicalMemory() * 0.8)

static

readonly TimeSpan Apache.Ignite.Core.Cache.Configuration.MemoryPolicyConfiguration.DefaultRateTimeInterval = TimeSpan.FromSeconds(60)

static

const int Apache.Ignite.Core.Cache.Configuration.MemoryPolicyConfiguration.DefaultSubIntervals = 5

Property Documentation

int Apache.Ignite.Core.Cache.Configuration.MemoryPolicyConfiguration.EmptyPagesPoolSize

getset

double Apache.Ignite.Core.Cache.Configuration.MemoryPolicyConfiguration.EvictionThreshold

getset

long Apache.Ignite.Core.Cache.Configuration.MemoryPolicyConfiguration.InitialSize

getset

long Apache.Ignite.Core.Cache.Configuration.MemoryPolicyConfiguration.MaxSize

getset

bool Apache.Ignite.Core.Cache.Configuration.MemoryPolicyConfiguration.MetricsEnabled

getset

Metrics can be retrieved with IIgnite.GetMemoryMetrics() method.

string Apache.Ignite.Core.Cache.Configuration.MemoryPolicyConfiguration.Name

getset

DataPageEvictionMode Apache.Ignite.Core.Cache.Configuration.MemoryPolicyConfiguration.PageEvictionMode

getset

TimeSpan Apache.Ignite.Core.Cache.Configuration.MemoryPolicyConfiguration.RateTimeInterval

getset

For instance, after setting the interval to 60 seconds, subsequent calls to IMemoryMetrics.AllocationRate will return average allocation rate (pages per second) for the last minute.

int Apache.Ignite.Core.Cache.Configuration.MemoryPolicyConfiguration.SubIntervals

getset

Bigger value results in more accurate metrics.

string Apache.Ignite.Core.Cache.Configuration.MemoryPolicyConfiguration.SwapFilePath

getset

Null for no swap.

Public Member Functions

Public Attributes

Static Public Attributes

Properties

Detailed Description

Constructor & Destructor Documentation

Member Data Documentation

Property Documentation