Re: Using libgit2 code in git.git as a Google Summer of Code project?

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

 



Hey,

On Thu, Mar 10, 2011 at 9:27 PM, Junio C Hamano <gitster@xxxxxxxxx> wrote:
> How big a performance penalty does libgit2 have to pay to depart from many
> "we run once and let exit take care of cleaning up after us" patterns used
> in git.git primarily in order to avoid the housekeeping cost?

It's not significant. We try to use custom memory allocation wherever
possible, and the most complex structures (interdependencies in parsed
objects from the DAG) are internally garbage collected, so we don't do
any unnecessary free's. We try to offset the cost of 'proper' memory
management by using smarter/more performance tuned algorithms. So far,
some stuff ranges from varying degrees of faster-than-git (see: new
revision walker, index writing, streaming loose object writes) to
slightly slower (see object parsing :/).

We are working on it. Performance is our main concern.

Cheers,
Vicent
--
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]