Re: [Lsf-pc] [LSF/MM TOPIC] async buffered diskio read for userspace apps

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On Mon, Jan 19, 2015 at 10:20 AM, Milosz Tanski <milosz@xxxxxxxxx> wrote:
> On Mon, Jan 19, 2015 at 11:10 AM, Volker Lendecke
> <Volker.Lendecke@xxxxxxxxx> wrote:
>> On Mon, Jan 19, 2015 at 08:31:27AM -0700, Jens Axboe wrote:
>>> I didn't look at your code yet, but I'm assuming it's a self
>>> contained IO engine. So we should be able to make that work, by only
>>> linking the engine itself against libsmbclient. But sheesh, what a
>>> pain in the butt, why can't we just all be friends.
>>
>> The published libsmbclient API misses the async features
>> that are needed here. Milosz needs to go lower-level.
>>
>> Volker
>
> Volker, the sync code path works; in fact I pushed some minor
> corrections to my branch this morning. And for now using FIO I can
> generate multiple clients (threads / processes).
>
> I started working on the async features (SMB2 async read/write) for
> client library the samba repo. There's a patch there for the first
> step of it it there; see the other email I sent to you and Jeremy. I
> was going to make sure it licensed under whatever it needs to get into
> the samba repo... and since this is done on my own time I personally
> don't care what license it's under provided it's not a PITA.

Why not do the async read/write via the kernel client if the license
is an issue?  It already has async SMB2/SMB3 operations
(with a synchronous send/receive-like wrapper).



-- 
Thanks,

Steve
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