[lvm-devel] [PATCH 12/24] Perf: Increase hash sizes

[Milan Broz]

On 01/30/2011 01:57 PM, Zdenek Kabelac wrote:
> Modify size of created hash tables in a way, it could be uniquely
> identified in debug code - as hash will be rouned up to nearest power

code obfuscation :) can we better add new has function or macro
which takes some identifier? (similar to pool create)

Why do you need such hacks?

> of two - so in most updated lines it presents no functional change.
> 
> There is one major increase of hass size for lv_hash from 128 to 1024 entries.
> (With ideal hash - in case of 10000 LVs - 10 LVs would ocuppy one slot -
> which should be still pretty fast).

Ack that part. Except that if I want 1024 I really do not want to push 999
there and believe it will be rounded :)

m.