[mythtv-users] Another TFW, Error: Write() -- IOBOUND
covert covert
thecovert at gmail.com
Tue Aug 26 08:41:01 UTC 2008
I am getting the dreaded "TFW, Error: Write() -- IOBOUND" error
showing in my Mythbackend log. I hope someone can tell me what to
check next. Done a few test and here are the results..
While recording 1 x HD stream and 2 x SD streams.
Output from iostat -xk 2 from just before I got a IOBOUND error to just after.
-------
Device: rrqm/s wrqm/s r/s w/s rkB/s wkB/s
avgrq-sz avgqu-sz await svctm %util
sda 0.00 754.00 16.50 15.00 66.00 3076.00
199.49 0.14 4.38 4.00 12.60
hdb 0.00 0.00 0.00 0.00 0.00 0.00
0.00 0.00 0.00 0.00 0.00
avg-cpu: %user %nice %system %iowait %steal %idle
28.33 15.98 5.08 26.39 0.00 24.21
Device: rrqm/s wrqm/s r/s w/s rkB/s wkB/s
avgrq-sz avgqu-sz await svctm %util
sda 0.00 293.00 144.50 25.00 578.00 1272.00
21.83 1.29 7.59 5.71 96.80
hdb 0.00 0.00 0.00 0.00 0.00 0.00
0.00 0.00 0.00 0.00 0.00
avg-cpu: %user %nice %system %iowait %steal %idle
26.24 18.56 6.93 22.03 0.00 26.24
Device: rrqm/s wrqm/s r/s w/s rkB/s wkB/s
avgrq-sz avgqu-sz await svctm %util
sda 0.00 905.00 96.00 24.50 384.00 3718.00
68.08 0.90 7.52 5.68 68.40
hdb 0.00 0.00 0.00 0.00 0.00 0.00
0.00 0.00 0.00 0.00 0.00
avg-cpu: %user %nice %system %iowait %steal %idle
63.41 18.80 8.27 0.00 0.00 9.52
Device: rrqm/s wrqm/s r/s w/s rkB/s wkB/s
avgrq-sz avgqu-sz await svctm %util
sda 0.00 1044.50 2.00 97.50 8.00 4568.00
91.98 1.03 10.31 0.74 7.40
hdb 0.00 0.00 0.00 0.00 0.00 0.00
0.00 0.00 0.00 0.00 0.00
--------
Output from hdparm -tT /dev/sda
-------
/dev/sda:
Timing cached reads: 860 MB in 2.00 seconds = 429.58 MB/sec
Timing buffered disk reads: 216 MB in 3.02 seconds = 71.47 MB/sec
--------
System specs
4800+ AMD X2
2GB Ram
500GB SATA drive
7300GS
2 x DVB-S
1 x DVB-T
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