hi I am having a performance issue with the following requirement
i have to create a permutation and combination on a set of three files
such that each record in each file is picked and the output is redirected in
a specific format but it is taking around 70 odd hours to prepare a
combination of 6, 1500, 2351 records in files
file 1 - 6 records
file 2 - 1500 records
file3 - 2351 records
total record in file.txt below is 6*1500*2351=21159000
script i am using is
Code:
echo 'date'
while read first
do
while read second
do
while read third
do
printf "%-9s %-9s %-9s %-9s %-9s %-9s %-9s %-9s %-9s %-9s\n" $first $second $third 4 5 1 2 1 5 2 >> file.txt
done < $3
done < $2
done < $1
date
Please Advice
Moderator's Comments:
It's [CODE], not <code>
Last edited by pludi; 02-24-2011 at 09:37 AM..
Reason: code tags
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otfdump
OTFDUMP(1) User Commands OTFDUMP(1)NAME
otfdump - otfdump
DESCRIPTION
otfdump - convert otf traces or parts of it into a human readable, long
version
Options:
-h, --help
show this help message
-V show OTF version
-f <n> set max number of filehandles available (default: 50)
-o <file>
output file if the ouput file is unspecified the stdout will be used
--num <a> <b>
output only records no. [a,b]
--time <a> <b> output only records with time stamp in [a,b]
--nodef
omit definition records
--noevent
omit event records
--nostat
omit statistic records
--nosnap
omit snapshot records
--nomarker
omit marker records
--nokeyvalue
omit key-value pairs
--fullkeyvalue show key-value pairs including the contents
of byte-arrays
--procs <a>
show only processes <a> <a> is a space-seperated list of process-tokens
--records <a>
show only records <a> <a> is a space-seperated list of record-type-numbers record-type-numbers can be found in OTF_Definitions.h
(OTF_*_RECORD)
-s, --silent
do not display anything except the time otfdump needed to read the tracefile
otfdump 1.10.2 May 2012 OTFDUMP(1)
02-24-2011
