Re: 2.9test9-mm1 and DAO ATAPI cd-burning corrupt

From: Martin Josefsson
Date: Thu Nov 06 2003 - 15:08:38 EST


On Thu, 2003-11-06 at 20:06, Prakash K. Cheemplavam wrote:

> > #/bin/bash
>
> A ! is missing there... Only 0 are appearing...what is expected? Do I
> have do do anything else?

Hmm how did I miss that... fixed now, thanks.

diskstat.sh hde

My output looks like this:

row reads rmerge rsect rms writes wmerge wsect wms io ms ms2
241 3 2 40 0 123 33 296 62384 0 146 12798
242 0 0 0 0 0 0 0 0 0 0 0
243 0 0 0 0 3 0 24 3 0 3 3
244 3 7 80 26 244 110 3984 23688 144 368 44683
245 1 0 8 20 325 8505 70600 118889 139 1015 143674
246 3 0 24 51 172 924 7656 115233 0 851 69550
247 2 0 16 44 0 0 0 0 0 44 44
248 2 0 16 24 0 0 0 0 0 24 24
249 4 0 32 62 531 301 7800 61074 143 863 83732
250 5 0 40 80 553 125 5568 155622 161 1032 153844
251 8 0 64 222 486 147 4824 164073 131 1099 176655
252 2 7 72 36 526 160 5464 156330 128 1014 145540
253 0 0 0 0 599 74 5472 132976 139 1034 146270
254 1 0 8 13 551 163 5720 141778 140 1018 149876
255 4 0 32 100 642 248 7256 225351 157 1433 207807
256 0 0 0 0 716 254 7896 211376 173 1470 211602
257 2 0 16 37 502 74 4368 129258 143 1015 149133
258 1 0 8 20 537 147 5352 162866 128 1010 150900

This is during a sequential write, only one writer. File received via
network.

Everything's humming along fine at 11-12MB/s until row 249, there it
drops to 2-4MB/s and the machine freezes for 1-2 seconds every 3-10
seconds. Data taken from /proc/diskstats and is in the same order as
those fields (documented in Documentation/iostats.txt).

Don't know if it's related to your problems in any way.

--
/Martin

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