My reading of this:
leads me to believe that this on the source side, not on the target side. In other words, tar obtains the inode times, reads the file into the accumulation of the output file, then resets the inode times to the original.
Some filesystems are set not to even record the access times, since it is often of limited value and causes disk activity.
If my supposition is correct, then one could use touch to reset the access times on the target -- tedious, but doable.
Perhaps someone will stop by with a definitive answer ... cheers, drl
Just dusted off an old version of the Byte UNIX Benchmarks from our old benchmark days at http://linux.silkroad.com/ and ran them against www.unix.com:
==============================================================
BYTE UNIX Benchmarks (Version 3.11)
System -- Linux www 2.4.20 #2 Mon... (0 Replies)
I know this should be easy, but Google is not turning up any results:
How can I find out what version of software (like tar and gzip) I have installed on my Sun box?
Thanks! (3 Replies)
sorry for my English
We'll report about Unix in my school, for Operating Systems subject...
with Installation demo....
I'm wondering if System V, which is from original developers AT&T still exist
and downloadable? because I cant find it anywhere...
then i found out that Solaris, MacOS... (4 Replies)
Guys,
I need to know what version of tar i am using in our HP B11.11 box (model = 9000/800/rp8420 ).
We have created a tar file and i wanted to know if the tar version i used supported 8GB-sized files (Check sanity of the archived file). As you know old version of tar is limited to files... (0 Replies)
HI,
if I have a tarfile called pmapdata.tar that contains
tar -tvf pmapdata.tar
-rw-r--r-- 0/0 21 Oct 15 11:00 2009 /var/tmp/pmapdata/pmap4628.txt
-rw-r--r-- 0/0 21 Oct 14 20:00 2009 /var/tmp/pmapdata/pmap23752.txt
-rw-r--r-- 0/0 1625 Oct 13 20:00 2009... (1 Reply)
hello,
i've a backup of a xen image which was tar'ed. i extracted the tarfile with --preserve and moved it to the lvm partition useing cp -p to preserve the ownership informations of the files in this step too.
but unfortunatly after extracting the archive some uid and guids which are present... (5 Replies)
Hi,
I do have question for un tar a file. I have several 'tar'ed files. For example: SRS.tar.bz2. I was trying to untar them in a linux server using the command:
tar xvjf SRS.tar.bz2
It worked perfectly. but when I open this file in my mac computer all the files are extracted into a... (7 Replies)
There are some duplicate field on description column .I want to print duplicate row along with highest version of number and corresponding description column.
file1.txt
number Description
=== ============
34567 nl21a00is-centerdb001:ncdbareq:Error in loading init
34577 ... (7 Replies)
Discussion started by: vijay_rajni
7 Replies
LEARN ABOUT MOJAVE
procsystime
procsystime(1m) USER COMMANDS procsystime(1m)NAME
procsystime - analyse system call times. Uses DTrace.
SYNOPSIS
procsystime [-acehoT] [ -p PID | -n name | command ]
DESCRIPTION
procsystime prints details on system call times for processes, both the elapsed times and on-cpu times can be printed.
The elapsed times are interesting, to help identify syscalls that take some time to complete (during which the process may have slept). CPU
time helps us identify syscalls that are consuming CPU cycles to run.
Since this uses DTrace, only users with root privileges can run this command.
OPTIONS -a print all data
-c print syscall counts
-e print elapsed times, ns
-o print CPU times, ns
-T print totals
-p PID examine this PID
-n name
examine processes which have this name
EXAMPLES
Print elapsed times for PID 1871,
# procsystime -p 1871
Print elapsed times for processes called "tar",
# procsystime -n tar
Print CPU times for "tar" processes,
# procsystime -on tar
Print syscall counts for "tar" processes,
# procsystime -cn tar
Print elapsed and CPU times for "tar" processes,
# procsystime -eon tar
print all details for "bash" processes,
# procsystime -aTn bash
run and print details for "df -h",
# procsystime df -h
FIELDS
SYSCALL
System call name
TIME (ns)
Total time, nanoseconds
COUNT Number of occurrences
DOCUMENTATION
See the DTraceToolkit for further documentation under the Docs directory. The DTraceToolkit docs may include full worked examples with ver-
bose descriptions explaining the output.
EXIT
procsystime will sample until Ctrl-C is hit.
AUTHOR
Brendan Gregg [Sydney, Australia]
SEE ALSO dtruss(1M), dtrace(1M), truss(1)version 1.00 Sep 22, 2005 procsystime(1m)