Re: [PATCH 3/3] receive-pack: eliminate duplicate .have refs

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Thu, May 19, 2011 at 08:06:20PM -0700, Junio C Hamano wrote:

> At first I thought you are going to insert the object names into a sorted
> list and handle dups while doing so, but it makes a lot more sense to
> append first and then sort at the end, and skip the dups while scanning,
> which is what you did.

I considered doing that, but I was worried that the constant
memmove()ing to insert into the sorted array would be inefficient.  As
it is, this uses a little more memory than necessary since we store all
the duplicates temporarily in memory (but we are not talking about a
lot, and I'm pretty sure they are all stored as a linked list elsewhere,
anyway, so it's not a huge deal).

The "right" data structure would be something like a tree or a hash. But
our hash is so painful to use for simple things like this (you have to
handle collision and creation of a linked list yourself!), that I just
went with the sorted list.

-Peff
--
To unsubscribe from this list: send the line "unsubscribe git" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html


[Index of Archives]     [Linux Kernel Development]     [Gcc Help]     [IETF Annouce]     [DCCP]     [Netdev]     [Networking]     [Security]     [V4L]     [Bugtraq]     [Yosemite]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Linux SCSI]     [Fedora Users]