Bug 25310 - magicdev wastes CPU cycles
Summary: magicdev wastes CPU cycles
Alias: None
Product: Red Hat Linux
Classification: Retired
Component: magicdev   
(Show other bugs)
Version: 7.0
Hardware: i386
OS: Linux
Target Milestone: ---
Assignee: David Mason
QA Contact: David Lawrence
Depends On:
TreeView+ depends on / blocked
Reported: 2001-01-30 16:56 UTC by josip
Modified: 2007-04-18 16:30 UTC (History)
1 user (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of:
Last Closed: 2001-01-30 16:56:18 UTC
Type: ---
Regression: ---
Mount Type: ---
Documentation: ---
Verified Versions:
Category: ---
oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---

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Description josip 2001-01-30 16:56:15 UTC
magicdev-0.2.7-5 takes too much CPU time (typically 18 percent) without any
device activity.  This happens on a dual CPU machine with two (idle, empty)
CD-ROM drives (on hdc and hdd), one of which is attached via ide-scsi
driver.  This 18 percent load is excessive, something under 5 percent would
be more acceptable, and less than 1 percent would be ideal.

Comment 1 Elliot Lee 2001-02-01 21:26:33 UTC
magicdev periodically checks the devices for new media. The indicated CPU load
is primarily a function of hardware - e.g. IDE will consume more CPU time than

There's really nothing that can be done on the magicdev end to reduce the
indicated CPU load, but you can take consolation in the ability to turn magicdev
off if it is causing real problems, and ignore it if it is not.

Comment 2 Gunther Mayer 2006-02-20 14:53:13 UTC
The root-cause might be related to
but there is not enough data above to be sure.

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