> ## Documentation Index
> Fetch the complete documentation index at: https://clickhouse.com/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# use_page_* session settings

> ClickHouse session settings in the use_page_* generated group.

export const SettingsInfoBlock = ({type, default_value, changeable_without_restart}) => {
  return <div className="not-prose" style={{
    display: "flex",
    flexWrap: "wrap",
    alignItems: "baseline",
    columnGap: "0.5rem",
    rowGap: "0.125rem",
    margin: "0.375rem 0",
    fontSize: "0.8125rem",
    lineHeight: "1.125rem"
  }}>
      <div style={{
    fontWeight: 600,
    opacity: 0.72
  }}>Type</div>
      <div style={{
    overflowWrap: "anywhere"
  }}>{type}</div>
      <div style={{
    fontWeight: 600,
    opacity: 0.72,
    marginInlineStart: "0.5rem"
  }}>Default</div>
      <div style={{
    overflowWrap: "anywhere"
  }}>{default_value}</div>
      {changeable_without_restart && <div style={{
    fontWeight: 600,
    opacity: 0.72,
    marginInlineStart: "0.5rem"
  }}>
          Changeable without restart
        </div>}
      {changeable_without_restart && <div style={{
    overflowWrap: "anywhere"
  }}>
          {changeable_without_restart}
        </div>}
    </div>;
};

These settings are available in [system.settings](/docs/reference/system-tables/settings) and are autogenerated from [source](https://github.com/ClickHouse/ClickHouse/blob/master/src/Core/Settings.cpp).

<h2 id="use_page_cache_for_disks_without_file_cache">
  use\_page\_cache\_for\_disks\_without\_file\_cache
</h2>

<SettingsInfoBlock type="Bool" default_value="0" />

<VersionHistory rows={[{"id": "row-1","items": [{"label": "24.3"},{"label": "0"},{"label": "Added userspace page cache"}]}]} />

Use userspace page cache for remote disks that don't have filesystem cache enabled.

<h2 id="use_page_cache_for_local_disks">
  use\_page\_cache\_for\_local\_disks
</h2>

<SettingsInfoBlock type="Bool" default_value="0" />

<VersionHistory rows={[{"id": "row-1","items": [{"label": "26.2"},{"label": "0"},{"label": "New setting to use userspace page cache for local disks"}]}]} />

Use userspace page cache when reading from local disks. Used for testing, unlikely to improve performance in practice. Requires local\_filesystem\_read\_method = 'pread' or 'read'. Doesn't disable the OS page cache; min\_bytes\_to\_use\_direct\_io can be used for that. Only affects regular tables, not file() table function or File() table engine.

<h2 id="use_page_cache_for_object_storage">
  use\_page\_cache\_for\_object\_storage
</h2>

<SettingsInfoBlock type="Bool" default_value="0" />

<VersionHistory rows={[{"id": "row-1","items": [{"label": "26.2"},{"label": "0"},{"label": "New setting to use userspace page cache for object storage table functions"}]}]} />

Use userspace page cache when reading from object storage table functions (s3, azure, hdfs) and table engines (S3, Azure, HDFS).

<h2 id="use_page_cache_with_distributed_cache">
  use\_page\_cache\_with\_distributed\_cache
</h2>

<SettingsInfoBlock type="Bool" default_value="0" />

<VersionHistory rows={[{"id": "row-1","items": [{"label": "25.3"},{"label": "0"},{"label": "New setting"}]}]} />

Use userspace page cache when distributed cache is used.