[mythtv-commits] Re: Ticket #551: blocking in ThreadedFileWriter
MythTV
mythtv at cvs.mythtv.org
Wed Nov 9 15:54:24 EST 2005
#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>
MythTV <http://www.mythtv.org/>
MythTV
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