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

[Jens Axboe <axboe@kernel.dk>]

On 01/20/2015 04:53 PM, Milosz Tanski wrote:
> On Tue, Jan 20, 2015 at 6:30 PM, Jens Axboe <axboe@kernel.dk> wrote:
>> On 01/20/2015 04:26 PM, Jens Axboe wrote:
>>> On 01/20/2015 04:22 PM, Milosz Tanski wrote:
>>>> Side note Jens.
>>>>
>>>> Can you add a configure flag to disable use of SHM (like for ESX)? It
>>>> took me a while to figure out the proper define to manually stick in
>>>> the configure.
>>>>
>>>> The motivation for this is using rr (mozila's replay debugger) to
>>>> debug fio. rr doesn't support SHM. http://rr-project.org/ gdb's
>>>> reversible debugging is too painfully slow.
>>>
>>> Yeah definitely, that's mean that thread=1 would be a requirement,
>>> obviously. But I'd be fine with adding that flag.
>>
>> http://git.kernel.dk/?p=fio.git;a=commit;h=ba40757ed67c00b37dda3639e97c3ba0259840a4
>
> Great, thanks for fixing it so quickly. Hopefully it'll be useful to
> others as well.

No problem, it's in the 2.2.5 version as released. Let me know when you 
are comfortable with me pulling in the cifs engine.

-- 
Jens Axboe

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