On 05/09/12 02:35, Dave Chinner wrote:
Transaction Wait queues Grant head Write Head Log head Log tail
-----------------------------------------------------------------------------------------
INACTIVE empty empty 118 438024 118 438024 118 802 118 697
INACTIVE empty empty 119 20240 119 20240 118 802 118 697
REMOVE empty empty 118 438456 118 438456 118 802 118 697
REMOVE empty empty 118 438772 118 438772 118 802 118 697
CREATE empty empty 119 35872 119 35872 118 802 118 697
FSYNC_TS active empty 119 205428 119 205428 118 802 118 697
FSYNC_TS active empty 119 202944 119 202944 118 802 118 697
FSYNC_TS active empty 119 200664 119 200664 118 802 118 697
REMOVE empty empty 118 380316 118 380316 118 724 118 652
INACTIVE empty empty 118 552532 118 552532 118 724 118 652
FSYNC_TS empty empty 118 382140 118 382140 118 724 118 652
INACTIVE empty empty 118 565968 118 565968 118 724 118 652
REMOVE empty empty 119 25404 119 25404 118 802 118 697
INACTIVE active empty 119 25580 119 25580 118 802 118 697
Just so you don't go down a blind alley, the timestamp on the log went
backwards there. If you resort on the time stamps this does not go
backwards.
Not sorted:
grep ungrant_exit trace* | awk '{print $3, $8, $20, $22, $24, $26, $28,
$30, $32, $34, $36, $38}' | less
3501.000611: FSYNC_TS active empty 119 205428 119 205428 118 802 118 697
3501.004513: FSYNC_TS active empty 119 202944 119 202944 118 802 118 697
3501.005210: FSYNC_TS active empty 119 200664 119 200664 118 802 118 697
3500.962328: REMOVE empty empty 118 380316 118 380316 118 724 118 652
3500.962458: INACTIVE empty empty 118 552532 118 552532 118 724 118 652
3500.962770: FSYNC_TS empty empty 118 382140 118 382140 118 724 118 652
3500.964781: INACTIVE empty empty 118 565968 118 565968 118 724 118 652
3500.971259: REMOVE empty empty 119 25404 119 25404 118 802 118 697
3500.971454: INACTIVE active empty 119 25580 119 25580 118 802 118 697
Sorted on the timestamps:
grep ungrant_exit trace* | awk '{print $3, $8, $20, $22, $24, $26, $28,
$30, $32, $34, $36, $38}' | sort | less
3500.962328: REMOVE empty empty 118 380316 118 380316 118 724 118 652
3500.962386: INACTIVE empty empty 118 555684 118 555684 118 724 118 652
3500.962402: CREATE empty empty 118 380492 118 380492 118 724 118 652
3500.962458: INACTIVE empty empty 118 552532 118 552532 118 724 118 652
3500.962466: FSYNC_TS empty empty 118 552532 118 552532 118 724 118 652
3500.962476: REMOVE empty empty 118 380936 118 380936 118 724 118 652
3500.962534: INACTIVE empty empty 118 556304 118 556304 118 724 118 652
...
3500.979002: INACTIVE empty empty 118 437672 118 437672 118 802 118 697
3500.979185: CREATE empty empty 118 437848 118 437848 118 802 118 697
3500.979269: CREATE empty empty 118 438024 118 438024 118 802 118 697
3500.979462: INACTIVE empty empty 118 438024 118 438024 118 802 118 697
3500.979627: INACTIVE empty empty 119 20240 119 20240 118 802 118 697
3500.979657: REMOVE empty empty 118 438456 118 438456 118 802 118 697
3500.979713: REMOVE empty empty 118 438772 118 438772 118 802 118 697
3500.979815: CREATE empty empty 119 35872 119 35872 118 802 118 697
3501.000611: FSYNC_TS active empty 119 205428 119 205428 118 802 118 697
Maybe I have a corrupted version of his first trace, it looks like there
are 2 series of log grant/write/head/tail sequences. These sequences are
not even close to each other:
188.116687: FSYNC_TS empty empty 1 847894476 1 847894476 1 1655998 1 1655971
188.116939: FSYNC_TS empty empty 1 847894476 1 847894476 1 1655998 1 1655971
188.117755: CREATE empty empty 4440 166388 4440 166388 4440 312 4440 310
188.117784: FSYNC_TS empty empty 1 847894476 1 847894476 1 1655998 1 1655971
188.117902: FSYNC_TS empty empty 1 847894476 1 847894476 1 1655998 1 1655971
188.118249: CREATE empty empty 4440 166844 4440 166844 4440 312 4440 310
188.118350: CREATE empty empty 4440 167300 4440 167300 4440 312 4440 310
188.118628: FSYNC_TS empty empty 4440 167300 4440 167300 4440 312 4440 310
188.118837: FSYNC_TS empty empty 1 847894476 1 847894476 1 1655998 1 1655971
188.118868: FSYNC_TS empty empty 1 847894476 1 847894476 1 1655998 1 1655971
--Mark Tinguely.
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