MemoryPressureSettings

Added in version 2.34.

class MemoryPressureSettings(**kwargs)

Constructors:

new() -> WebKit.MemoryPressureSettings

Constructors

class MemoryPressureSettings

classmethod new() → MemoryPressureSettings

Create a new MemoryPressureSettings with the default values.

Added in version 2.34.

Methods

class MemoryPressureSettings

free() → None

Free the MemoryPressureSettings.

Added in version 2.34.

get_conservative_threshold() → float

Gets the conservative memory usage threshold.

Added in version 2.34.

get_kill_threshold() → float

Gets the kill memory usage threshold.

Added in version 2.34.

get_memory_limit() → int

Gets the memory usage limit.

Added in version 2.34.

get_poll_interval() → float

Gets the interval at which memory usage is checked.

Added in version 2.34.

get_strict_threshold() → float

Gets the strict memory usage threshold.

Added in version 2.34.

set_conservative_threshold(value: float) → None

Sets the memory limit for the conservative policy to start working.

Sets value as the fraction of the defined memory limit where the conservative policy starts working. This policy will try to reduce the memory footprint by releasing non critical memory.

The threshold must be bigger than 0 and smaller than 1, and it must be smaller than the strict threshold defined in settings. The default value is 0.33.

Added in version 2.34.

Parameters:

value – fraction of the memory limit where the conservative policy starts working.

set_kill_threshold(value: float) → None

Sets value as the fraction of the defined memory limit where the process will be killed.

The threshold must be a value bigger or equal to 0. A value of 0 means that the process is never killed. If the threshold is not 0, then it must be bigger than the strict threshold defined in settings. The threshold can also have values bigger than 1. The default value is 0.

Added in version 2.34.

Parameters:

value – fraction of the memory limit where the process will be killed because of excessive memory usage.

set_memory_limit(memory_limit: int) → None

Sets memory_limit the memory limit value to settings.

The default value is the system’s RAM size with a maximum of 3GB.

Added in version 2.34.

Parameters:

memory_limit – amount of memory (in MB) that the process is allowed to use.

set_poll_interval(value: float) → None

Sets value as the poll interval used by settings.

The poll interval value must be bigger than 0. The default value is 30 seconds.

Added in version 2.34.

Parameters:

value – period (in seconds) between memory usage measurements.

set_strict_threshold(value: float) → None

Sets the memory limit for the strict policy to start working.

Sets value as the fraction of the defined memory limit where the strict policy starts working. This policy will try to reduce the memory footprint by releasing critical memory.

The threshold must be bigger than 0 and smaller than 1. Also, it must be bigger than the conservative threshold defined in settings, and smaller than the kill threshold if the latter is not 0. The default value is 0.5.

Added in version 2.34.

Parameters:

value – fraction of the memory limit where the strict policy starts working.