Compressing unix disks

Bruce G. Barnett barnett at vdsvax.steinmetz.ge.com
Mon Mar 14 21:22:51 AEST 1988


In article <29500023 at ccvaxa> aglew at ccvaxa.UUCP writes:
	[Discussion on the Berkeley fast file system]
|Disk thruput maybe, file thruput no. Lots of activity on a nearly full
|disk can result in a file spread across several cylinders, because there 
|wasn't room on a single cylinder when it was created, although there may 
|be now.
|    Perhaps the term "fragmentation" is inappropriate. 

As I recall, whenever a 'mkdir' is issued, the system finds the
largest cylinder group it can. Therefore the best access can be
achieved by putting a large number of files in a new directory.

That is the theory - anyway. Are there any tricks to keep your
Berkeley file system up to snuff? I remember some non-unix operating
systems suggesting you put the most frequently used files on first.
-- 
	Bruce G. Barnett 	<barnett at ge-crd.ARPA> <barnett at steinmetz.UUCP>
				uunet!steinmetz!barnett



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