How is the caches parameter configured in the Django cache optimization?

CACHES configuration Parameters Overview-format

CACHES Dictionary configuration format is as follows

{
' Default ': {
' Backend ':
' Django.core.cache.backends.locmem.LocMemCache ',
}
}

The default cache must be configured when you configure the CACHES dictionary

CACHES configuration Parameters Overview-Backend

Supported backend:

1) ' Django.core.cache.backends.db.DatabaseCache '
2) ' Django.core.cache.backends.dummy.DummyCache '
3) ' Django.core.cache.backends.filebased.FileBasedCache '
4) ' Django.core.cache.backends.locmem.LocMemCache '
5) ' Django.core.cache.backends.memcached.MemcachedCache '
6) ' Django.core.cache.backends.memcached.PyLibMCCache '
Configurable cache back-end list

CACHES Configuration Parameters Overview-Additional parameters

Each cache backend can set additional parameters to control the caching behavior. The following parameters can be configured:

1) TIMEOUT

Cache default expiration time (seconds), 300s (5mins) not set

2) OPTIONS

Optional configuration, different back end, optional configuration options

3) Key_prefix

The default is automatically added to the front of all cache keys

4) VERSION

Default cache keys for version

5) Key_function

Generate final cache function path for keys

Like Locmem, filesystem and database caches implement the cull policy with the following parameters:
Culling policy parameters (options):
Max_entries
Maximum number of allowed in the cache before old data is deleted, default: 300
Cull_frequency
When the number of caches reaches max_entries, a partial cache is deleted, the deletion rate is 1/cull_requency, and if cull_frequency = 2, half of the data is deleted when the max_entries is reached. Default value: 3

CACHES Configuration Parameters Overview-Example

CACHES = {
' Default ': {
' Backend ': ' Django.core.cache.backends.filebased.FileBasedCache ',
' Location ': '/var/tmp/django_cache ',
' TIMEOUT ': 60,
' OPTIONS ': {
' Max_entries ': 1000
}
}
}

Note: Invalid parameters are ignored and do not affect the entire project

How is the caches parameter configured in the Django cache optimization?