Re: [PATCH 2/2] use hlist for pid hash

[Nick Piggin <nickpiggin@yahoo.com.au>]

Ryan Cumming wrote:
> On Saturday 21 August 2004 21:46, you wrote:
> 
>>This comes at the "expense" of
>>1. reintroducing the memory  prefetch into the hash traversal loop;
>>2. adding new pids to the head of the list instead of the tail. I
>>   suspect that if this was a big problem then the hash isn't sized
>>   well or could benefit from moving hot entries to the head.
> 
> 
> It looks like the current code is already adding PIDs to the head: list_add() 
> adds to the head of a list and list_add_tail() adds to the tail.
> 

Hmm, so it is. I must have been looking at the task_list list when I
was thinking that. Well, all the better.