On Tuesday 21 April 2009, Garry T. Williams wrote: >On Tuesday 21 April 2009 09:28:54 Gene Heskett wrote: >> I noticed my machine was lagging badly, so I took a look with htop, >> and >> >> /usr/bin/perl /usr/share/logwatch/scripts/shared/onlyservice init >> >> is using 99% of a core (4 core machine) and /dev/sda3 is showing >> about a 15Meg/sec continuous read operation. This has been going >> on for at least an hour. >> >> What is it doing? > >It's scanning a log file for messages from `init'. I guess you have a >*very* large log file that it is reading. (Take a look at the Perl >script /usr/share/logwatch/scripts/shared/onlyservice . It's just >matching on one of several different Perl regular expressions that >include the string `init'.) > >I see that the Perl regular expressions are suboptimal in that the >quantifier `*' seems to be used in several places where it should be >`+'. This consumes more CPU than necessary. > >> And why? > >Because the logwatch program runs periodically to summarize >"interesting" log messages. > And I lost a hard drive yesterday, but running e2fsck -c -c -y /dev/sdd1, starting about 9 am Sunday morning. The drive ran out of spare blocks, and is now invisible, no response. And it generated about a 1.7 gigabyte messages file with the errors as it was expiring. A 1 TG Maxtor drive of course. So that would explain that. Should that bit of perl be patched as you noted? >-- >Garry T. Williams --- +1 678 656-4579 -- Cheers, Gene "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) Where's the man could ease a heart Like a satin gown? -- Dorothy Parker, "The Satin Dress" -- fedora-list mailing list fedora-list@xxxxxxxxxx To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list Guidelines: http://fedoraproject.org/wiki/Communicate/MailingListGuidelines
