What is the best tools for performance data gathering and analysis? Post: 302557457

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LEARN ABOUT SUSE

vfs_commit

VFS_COMMIT(8)						    System Administration tools 					     VFS_COMMIT(8)

NAME

       vfs_commit - flush dirty data at specified intervals

SYNOPSIS

       vfs objects = commit

DESCRIPTION

       This VFS module is part of the samba(7) suite.

       The vfs_commit VFS module keeps track of the amount of data written to a file and synchronizes it to disk when a specified amount
       accumulates.

       vfs_commit is useful in two circumstances. First, if you have very precious data, the impact of unexpected power loss can be minimized by a
       small commit:dthresh value. Secondly, write performance can be improved on some systems by flushing file data early and at regular
       intervals.

       This module is stackable.

OPTIONS

       commit:dthresh = BYTES
	   Synchronize file data each time the specified number of bytes has been written.

	   The following suffixes may be applied to BYTES:

	   o   K - BYTES is a number of kilobytes

	   o   M - BYTES is a number of megabytes

	   o   G - BYTES is a number of gigabytes

EXAMPLES

       Synchronize the file data on the [precious] share after every 512 kilobytes (524288 bytes) of data is written:

		   [precious]
		path = /data/precious
		vfs objects = commit
		commit:dthresh = 512K

CAVEATS

       On some systems, the data synchronization performed by commit may reduce performance.

VERSION

       This man page is correct for version 3.0.25 of the Samba suite.

AUTHOR

       The original Samba software and related utilities were created by Andrew Tridgell. Samba is now developed by the Samba Team as an Open
       Source project similar to the way the Linux kernel is developed.

Samba 3.5							    06/18/2010							     VFS_COMMIT(8)

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