Where userland read/write requests, whcih is larger than MAXPHYS, are splitted?

Lev Serebryakov lev at serebryakov.spb.ru
Fri Dec 10 15:29:21 UTC 2010


Hello, Andriy.
You wrote 10 декабря 2010 г., 18:03:27:

> on 10/12/2010 16:48 Andriy Gapon said the following:
>> But maybe I misunderstood your question and you talked about a different I/O layer
>> or different I/O path.
> Oh, probably you talk about physread/physwrite == physio.
> Indeed, it issues bio-s with max size of si_iosize_max and runs them sequentially.
   Yep,  I'm  talking  about  this  case.  See my message to Alexander
Motin  with  explanation why I think sequential processing here is not
good idea.

-- 
// Black Lion AKA Lev Serebryakov <lev at serebryakov.spb.ru>



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