Re: [patch 00/13] Syslets, "Threadlets", generic AIO support, v3

Al Boldi
2007-02-27T14:13:09Z

Evgeniy Polyakov wrote:
> Ingo Molnar (mingo@elte.hu) wrote:
> > based servers. The measurements so far have shown that the absolute
> > worst-case threading server performance is at around 60% of that of
> > non-context-switching servers - and even that level is reached
> > gradually, leaving time for action for the server owner. While with
> > fully event based servers there are mostly only two modes of
> > performance: 100% performance and near-0% performance: total breakdown.
>
> Let's live in piece! :)
> I always agreed that they should be used together - event-based rings
> of IO requests, if request happens to block (which should be avaided
> as much as possible), then it continues on behalf of sleeping thread.

Agreed 100%. Notify always when you can, thread only when you must.

Thanks!

--
Al