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bug#16309: cp is a cpu hog
From: |
U.Mutlu |
Subject: |
bug#16309: cp is a cpu hog |
Date: |
Tue, 31 Dec 2013 08:37:35 +0100 |
User-agent: |
Mozilla/5.0 (X11; Linux i686 on x86_64; rv:20.0) Gecko/20100101 Firefox/20.0 SeaMonkey/2.17.1 |
Hello,
there is a big bug with the cp command: it eats all cpu resources,
the system is not responsive while copying a huge file,
say a file of size 10 GB.
There are other _desasterous_ consequences of this behaviour,
if interessted I can tell you.
OS: Debian, 64bit, latest, happens also on other distros like Ubuntu,
see for example these links:
http://ubuntuforums.org/showthread.php?t=1206936
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/365775
http://stackoverflow.com/questions/4290679/why-high-io-rate-operations-slow-everything-on-linux
...
I suggest you just place a nanosleep(a_small_value)
in the loop that does the copy operation.
From my experience in simular situations this helps much.
Best regards & Happy New Year
U.Mutlu
- bug#16309: cp is a cpu hog,
U.Mutlu <=