pt., 1 kwi 2022 o 09:06 Willy Tarreau <[email protected]> napisał(a):
> I seem to remember a discussion about this in the past and that the
> conclusion basically was that outgoing connections are sent on the
> "current" thread when the management task creates them, while incoming
> connections are balanced depending on the overall process' load.
Yes, that's what I'm observing. High cpu usage is caused by outgoing
connections (visible on "show fd" dump - rport=1024) and currently I don't
mind the incoming ones because they are balanced pretty well.
> I remember mentioning something about trying to change this in the future.
> For outgoing connections I think we could try to figure where peers
> connections are and always use one least represented thread.
>
If I understand the code correctly, the peer_session_create() function
creates appctx by appctx_new() which allocates all outgoing connections on
the current thread "appctx->t = task_new_here();"?
So changing peer_session_create() into:
static struct appctx *peer_session_create(struct peers *peers, struct peer
*peer, int thread) {
...
appctx = appctx_new_on(&peer_applet, thread);
if (!appctx)
goto out_close;
...
}
where appctx_new_on() is a new function that creates an applet on a
specified thread would fix my issue? I'm worrying it's not that easy and
some locking here and there might be needed. ;-)
Kind regards,
Maciej
> Willy
>
