Supose I want to parse a big log file (~500MB/4mil lines), which one is faster and use less memory:
$ ./parser.pl logfile.log
or
$ grep 'Jun 14 03:' | ./parser.pl
Log file is 24 hours and it will be processed every hour.
------ parser.pl: $in_time = 'Jun 14 03:';
while(<>)
{
if(/^$in_time/ {
# do some processing
}else {
next;
}
}
--
--beast
