Re: cleaner/better zlib sources?

On Fri, 16 Mar 2007, Linus Torvalds wrote:

On Thu, 15 Mar 2007, Davide Libenzi wrote:

quoted

Hacked up test case below ...

This one seems to do benchmarking with 8MB buffers if I read it right 
(didn't try).

Yes, I just wanted to have the biggest time spent in inflate(). That why I 
use a big buffer.

The normal size for the performance-critical git objects are in the couple 
of *hundred* bytes. Not kilobytes, and not megabytes.

The most performance-critical objects for uncompression are commits and 
trees. At least for the kernel, the average size of a tree object is 678
bytes. And that's ignoring the fact that most of them are then deltified, 
so about 80% of them are likely just a ~60-byte delta.

Definitely. The nature of the data matters.
Did you try to make a zlib with my patch and oprofile git on real data 
with that?



- Davide