[mythtv-commits] Re: Ticket #551: blocking in ThreadedFileWriter

[MythTV]

#551: blocking in ThreadedFileWriter
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 Reporter:  anonymous  |        Owner:  danielk 
     Type:  defect     |       Status:  assigned
 Priority:  critical   |    Milestone:  0.19    
Component:  mythtv     |      Version:  head    
 Severity:  medium     |   Resolution:          
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Comment (by danielk):

 Hmm, well it is definately a TFW blocking issue that you are experiencing.
 can you add this line to TFW @ line 40 (just before the while):
 VERBOSE(VB_IMPORTANT, LOC + "safe_write(size: "<<sz<<")");

 Also I fixed the verbose macro for the IOBOUND message.

 Can you also give me the output of "hdparm /dev/diskdevice" and "hdparm
 --direct -t /dev/diskdevice" for the recording volume.

 For reference, this is what I get for the read test:
   "Timing O_DIRECT disk reads:  186 MB in  3.03 seconds =  61.35 MB/sec"

 I believe what I'm experiencing is mostly a RingBuffer issue...

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Ticket URL: <http://cvs.mythtv.org/trac/ticket/551>
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