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Top Forums UNIX for Advanced & Expert Users What process is writing to disk? Post 302252452 by MarkSeger on Wednesday 29th of October 2008 01:08:02 PM
Old 10-29-2008
re 10: I'm the author of collectl. If there's something inconsistent with the documentation could you let me know what is?

While I don't have any quick answers to the problem of finding the guilty process, one thought that comes to mind is to try a smaller monitoring interval, something you can to do with most of the 'standard' utilities. For example you could do

collectl -i.1 --vmstat -oT

to see the same output vmstat would show, only prefaced with a timestamp and you'd see one sample every second. If that's not enough you could try 0.01 seconds or anything in between but that's probably overkill. 9-)

you could also try

collectl -i.1 --top

to see what top might show or even

collectl -i.1 -sD

to see what iostat would show. far too many other commands to show here, but you could always look at collectl.sourceforge.net

-mark
 

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PMAP(1) 							Linux User's Manual							   PMAP(1)

NAME
pmap - display information about process memory mappings SYNOPSIS
pmap [ -d | -q | -h | -V | -A low,high ] pid DESCRIPTION
pmap(1) displays information about a process's memory mappings, such as its stack, data segment, mapped files, and so on. The pmap(1) utility will show, for each mapping of a given process, the starting byte address in the process's address space, the size, the RSS (size of the mapping in physical memory), the amount of dirty pages, the permission, the device node, the offset, and the file backing the mapping, if any. As the last line of output, the pmap(1) utility will tally up the total size of all mappings as well as show the total size of writable/private mappings and of shared mappings. OPTIONS
d, --device Display major and minor device numbers. A, --limit=low,high Limit results to the given range. q, --quiet Hide header and memory statistics. h, --help Show pmap usage. V, --version Display version information. FILES
/proc/pid/maps and /proc/pid/smaps -- memory mapping information SEE ALSO
ps(1), top(1), free(1), vmstat(1) AUTHORS
Written by Chris Rivera. The procps package is maintained by Albert Calahan. Please send bug reports to <albert@users.sf.net>. Linux 12 Oct 2005 PMAP(1)
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