Since last week that I run an apt-get upgrade on my machine,bI observe a very high and periodically CPU usage for perl process
21392 112 39 19 10332 7552 3592 R 53.0 1.5 0:01.63 perl
426 root 20 0 5088 2476 2256 S 0.0 0.5 0:00.33 `- cron
24709 root 20 0 6484 2560 2200 S 0.0 0.5 0:00.03 `- cron
24713 112 20 0 1900 1100 1024 S 0.0 0.2 0:00.01 `- sh
24714 112 20 0 4604 2640 2476 S 0.0 0.5 0:00.02 `- copy-local-and-
24719 112 20 0 1900 1204 1128 S 0.0 0.2 0:00.01 `- refile-and-grok
24725 112 20 0 3536 1516 1436 S 0.0 0.3 0:00.00 `- xargs
24726 112 20 0 1900 1076 1004 S 0.0 0.2 0:00.01 `- refile-and-grok
24728 112 39 19 18592 15008 4996 R 91.2 3.0 0:06.70 `- perl
The process ID changes every time the perl process comes up.
UPDATE
root@raspberrypi:/var/ftp# ps -ef | grep perl
112 25971 25969 91 13:42 ? 00:00:20 perl /usr/share/dsc-statistics-presenter/dsc-xml-extractor
root 25981 22322 0 13:42 pts/0 00:00:00 grep perl
That process always run since I have my server up and running. It seems that got that high CPU usage since I updgrade perl, per-base and perl modules from 5.20.2-3+deb8u5 to 5.20.2-3+deb8u6. I'm trying to rollback but I m not able to do it
root@raspberrypi:/var/ftp# apt-get install perl=5.20.2-3+deb8u5
Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Version '5.20.2-3+deb8u5' for 'perl' was not found
root@raspberrypi:/var/ftp#
Anyone can help me to identify the reason of such high cpu usage or roll-back the upgrade done?
top
command and press V. It will enlist commands with their parents in tree format. It will be easy then to find out which process calling theperl
ps -ef | grep perl
?kill -9 426
and see for a while the cpu load