[mythtv-commits] Re: Ticket #551: Scheduler consuming all CPU
cycles and disk bandwidth (via mysql).
MythTV
mythtv at cvs.mythtv.org
Fri Nov 25 16:06:28 EST 2005
#551: Scheduler consuming all CPU cycles and disk bandwidth (via mysql).
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Reporter: anonymous | Owner: bjm
Type: defect | Status: new
Priority: major | Milestone: 0.19
Component: mythtv | Version: head
Severity: medium | Resolution:
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Changes (by bjm):
* owner: gigem => bjm
Comment:
No scheduler output from a run that took over 20 seconds has been
provided. The only example posted were 1.1 and ~2.5 sec which proves
nothig. Further there has been no information given about the fileystem
layout, in particular if the /var partition with the active database files
are on the same physical disk where two HD file are being written (or read
and write) at the same time.
If this were the case, the disk heads would be thrashing and could not
keep up with the queued requests. Coding around a near failure situation
is not a solution. For anyone having this probelm, move /var to a
different physical disk than that of the video recording directory.
Do not reopen this ticket without providing:
The scheduler output as described above for a schedule run of more than 20
seconds.
The scheduler output from the same system when there are no recordings or
playback in progress.
The output of:
cat /etc/fstab
df /var/lib/mysql/mythconverg
df /your/video/dir
--
Ticket URL: <http://svn.mythtv.org/trac/ticket/551>
MythTV <http://www.mythtv.org/>
MythTV
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