From: Kjetil Barvik <barvik@broadpark.no>
Date: Thu, 19 Feb 2009 09:06:59 GMT
Subject: Re: [PATCH] check_updates(): effective removal of cache entries marked CE_REMOVE
Message-ID: <86ocwy3ido.fsf@broadpark.no>
In-Reply-To: <81b0412b0902190024t3fc7ab20r9a23c72270ac1033@mail.gmail.com>

Alex Riesen <raa.lkml@gmail.com> writes:

> 2009/2/18 Kjetil Barvik <barvik@broadpark.no>:
>> If we can trust the numbers from oprofile in this case, we saved
>> approximately ((7710 - 46) * 20000) / (2 * 1000 * 1000 * 1000) = 0.077
>> seconds CPU time with this fix for this particular test.  And notice
>> that now the CPU did only 46 / 15 = 3.1 cycles/instruction.
> ...
>> diff --git a/unpack-trees.c b/unpack-trees.c
>> index e3c3fa1..273b5da 100644
>> --- a/unpack-trees.c
>> +++ b/unpack-trees.c
>> @@ -93,11 +93,9 @@ static int check_updates(struct unpack_trees_options *o)
>>                        display_progress(progress, ++cnt);
>>                        if (o->update)
>>                                unlink_entry(ce);
>> -                       remove_index_entry_at(&o->result, i);
>> -                       i--;
>> -                       continue;
>>                }
>>        }
>> +       remove_marked_cache_entries(&o->result);
>>        remove_scheduled_dirs();
>>
>
> What commit is this change based on? It does not apply to any
> of Junio's master, next, or pu...

  It was based on 'pu', and not a uptodate one.  Sorry about that, I
  will update the patch based on master, and include it together with
  the 2 'USE_NSEC'-patches, which I posted some few days ago.

  -- kjetil