Re: output - aggregate read bandwitdh

[Jens Axboe <axboe@kernel.dk>]

On Wed, May 22 2013, Jens Axboe wrote:
> On Wed, May 22 2013, Edoardo Comar wrote:
> > > 
> > > It would help a lot if you could do a git bisect and reliably find out
> > > which commit caused the problem. The procedure is something like this,
> > > assuming you are in the fio git repository:
> > > 
> > > You continue this process until it tells you which one is the offending
> > > commit. Then you mail that here :-)
> > > 
> > > -- 
> > > Jens Axboe
> > > 
> > 
> > Thanks for the detailed explanataion
> > please find the log below,
> > Edo
> > 
> > [ecomar@edow500 fio]$ git bisect bad
> > Bisecting: 0 revisions left to test after this (roughly 0 steps)
> > [78c1111eacdb594e0488d5adc508091fc2a3af88] Fix variable type warning
> > 
> > [ecomar@edow500 fio]$ git bisect log
> > git bisect start
> > # good: [ffa93ca9d8d37ef795904773a22bf4ea77f58373] Fio 2.0.13
> > git bisect good ffa93ca9d8d37ef795904773a22bf4ea77f58373
> > # bad: [4728b3c82f07612d64b79a67adc31dd9ca3c79fc] fusion atomic: retrieve 
> > all capabilities and support larger writes
> > git bisect bad 4728b3c82f07612d64b79a67adc31dd9ca3c79fc
> > # good: [73cfb8a7da365c37253662477edb54ecc19575df] Merge branch 'gfio' of 
> > ssh://brick.kernel.dk/data/git/fio into gfio
> > git bisect good 73cfb8a7da365c37253662477edb54ecc19575df
> > # bad: [44583e022320424d145dbf01d51480e4c9a71126] Fixup commit error in 
> > 56c796
> > git bisect bad 44583e022320424d145dbf01d51480e4c9a71126
> > # bad: [fd112d34a2cfdc2d9efcd394e38b6d87b357c23d] Fix percentile_list 
> > option
> > git bisect bad fd112d34a2cfdc2d9efcd394e38b6d87b357c23d
> > # bad: [cfd94f79c362da249d22a59b6ede367ce3d2ba1d] configure: fixup Windows
> > git bisect bad cfd94f79c362da249d22a59b6ede367ce3d2ba1d
> > # bad: [17f0fd39d8b1f8edb420721c38302bd46254db03] axmap: clear 
> > map->first_free when we reset it
> > git bisect bad 17f0fd39d8b1f8edb420721c38302bd46254db03
> > # bad: [c81f9347e5849a6b97a02f215f1c474e27c79f1a] Add CONFIG_64BIT_LLP64, 
> > CONFIG_POSIX_FALLOCATE and CONFIG_LINUX_FALLOCATE to Makefile.
> > git bisect bad c81f9347e5849a6b97a02f215f1c474e27c79f1a
> > # bad: [d537c08b0eacdeb05835ee8c5f269b872239713a] Add a check avoid 
> > segfault
> > git bisect bad d537c08b0eacdeb05835ee8c5f269b872239713a
> > # bad: [67bf982340d95ca98098ea050b54b4c7adb116c0] Add configure script
> > git bisect bad 67bf982340d95ca98098ea050b54b4c7adb116c0
> > [ecomar@edow500 fio]$ 
> 
> So 67bf982340d95ca98098ea050b54b4c7adb116c0 is the first bad commit,
> funky. Ah I think I see what it is, hang on.

http://git.kernel.dk/?p=fio.git;a=commit;h=4b20c6814d4742e27a68f8a740a955283869fbcd

If you git pull, you'll get that. Please see if that makes it behave
like 2.0.13 for you.

-- 
Jens Axboe