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sys_attrs_ufs

Section: File Formats (5)
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NAME

sys_attrs_ufs - ufs subsystem attributes  

DESCRIPTION

This reference page lists and describes attributes for the UNIX File System (ufs) kernel subsystem. Refer to the sys_attrs(5) reference page for an introduction to the topic of kernel subsystem attributes.

A value that enables (1) or disables (0) the creation of fast symbolic link files.
Default value: 1 (enabled)
Size of (number of slots in) the inode hash chain table for the inode least recently used (LRU) cache.
Default value: 2048 (slots)
Minimum value: 64
Maximum value: 16384
Large inode hash chain tables spread the inode structures and may make chain lengths short. This can reduce linear searches and improve lookup speeds. In general, chains should contain only 2 or 3 elements.
Obsolete. This attribute has been replaced by the vfs subsystem's max-ufs-mounts attribute, which is tunable at run time. See sys_attrs(5) for information about max-ufs-mounts.
The range of blocks behind the current block location through which to search for a free block to allocate for an indirect block write operation (for all writes other than the first). A value greater than 1 enables a look-behind search before writing each indirect block after the first block write operation.
Default value: 16 (blocks)
Minimum value: 1
Maximum value: 64
 

SEE ALSO

sys_attrs(5)


 

Index

NAME
DESCRIPTION
SEE ALSO

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Time: 02:43:11 GMT, October 02, 2010