Lars Schneider <larsxschnei...@gmail.com> writes:

>> On 16 Nov 2016, at 19:15, Junio C Hamano <gits...@pobox.com> wrote:
>> 
>> Lars Schneider <larsxschnei...@gmail.com> writes:
>> 
>>>> * You'd need to rein in the maximum parallelism somehow, as you do
>>>>  not want to see hundreds of competing filter processes starting
>>>>  only to tell the main loop over an index with hundreds of entries
>>>>  that they are delayed checkouts.
>>> 
>>> I intend to implement this feature only for the new long running filter
>>> process protocol. OK with you?
>> 
>> Do you mean that a long-running filter process interacting with
>> convert_to_worktree() called from checkout_entry() will be the only
>> codepath that will spawn multiple processes or threads?  
>> 
>> That is fine, but it does not change the fact that you still need to
>> limit the maximum parallelism there.
>
> Filters using the long running protocol are spawned only once by Git. 
> The filter process would get all the smudge requests via the pipe
> protocol and is supposed to manage the parallelism on its own.

Yes, I think we are on the same page.  You need to be careful not to
let the filter process go berserk spawning too many threads or
processes.

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