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Special Forums Hardware Filesystems, Disks and Memory Performance Hit With Many Files Post 302294604 by vbe on Thursday 5th of March 2009 01:28:31 PM
Old 03-05-2009
We did once testing of the sort (with VMS, Novell unix MS...) and found out that all true preemptive multi-process-multitask OS where outperformed by the others...
Its the price you pay for equally sharing your time between all the processes...

(For me it proved again that windows server (NT4 W2000) were still not completely preemptive multitask...)
 

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logdump(8)						  JFS utility - journal log dump						logdump(8)

NAME
logdump - dump a JFS formatted device's journal log SYNOPSIS
logdump [ -a ] device DESCRIPTION
logdump dumps the contents of the journal log from the specified JFS formatted device into output file ./jfslog.dmp. device is the special file name corresponding to the actual device from which the journal log will be dumped (e.g. /dev/hdb1 ). logdump must be run as root. OPTIONS
-a Dump the entire contents of the journal log instead of just the committed transactions since the last synch point. EXAMPLE
Dump the entire JFS journal log from the 3rd partition of the 2nd hard disk into ./jfslog.dmp: logdump -a /dev/hdb3 REPORTING BUGS
If you find a bug in JFS or logdump, please report it via the bug tracking system ("Report Bugs" section) of the JFS project web site: http://oss.software.ibm.com/jfs Please send as much pertinent information as possible, including any logdump error messages and the complete output of running fsck.jfs with the -v option on the JFS device. SEE ALSO
xchklog(8), xchkdmp(8), mkfs.jfs(8), fsck.jfs(8), logredo(8), xpeek(8) AUTHORS
Barry Arndt (barndt@us.ibm.com) William Braswell, Jr. logdump is maintained by IBM. See the JFS project web site for more details: http://oss.software.ibm.com/jfs October 10, 2001 logdump(8)
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