Re: [fuse-devel] Fuse callbacks and threads.

[Chuanwen W. <wc...@gm...>]

On Thu, Sep 11, 2008 at 9:31 PM, Goswin von Brederlow <gos...@we...> wrote:
> "Pedro Eugênio Rocha" <ped...@gm...> writes:
>
>> I have some doubts about how fuse execute its callbacks (get_attr, read_dir,
>> etc.) after it daemonizes. If i just call fuse_main with the default
>> parameters, just like the hello example on the fuse's page, the callbacks
>> are executed sequentially, or each callback is executed on a different
>> thread? Is there a way to configure it?
>>
>> Sorry for the dumb question, but i search o lot and didnt't find the
>> anwser...
>>
>> Cheers,
>
> You can disable threading (-s) and then they will be done
> sequentially. Otherwise they will be done concurrently as much as
> possible. How much parallelism can be done depends on the actions as
> they do need to lock parts (or sometimes all) of the fs tree.
And as what I noticed in the output of  fuse( with -d but not -s), the
"write" operation callback was always executed sequentially. I mean
only the "write" operation callback, and others may be parellel.

Please fixed me if I'm wrong.


-- 
wcw