[PATCH 0 of 6] conditional rearm of write timeouts

[Maxim Dounin]

Hello!

On Fri, May 02, 2025 at 03:43:03AM +0300, Maxim Dounin wrote:

> Hello!
> 
> The following patch series introduces conditional rearm of write
> timeouts (and also does some related cleanup).
> 
> Notably, this might be beneficial on Linux under memory pressure, when
> requested send buffers cannot be allocated and writev() returns EAGAIN
> without any progress, yet write events are reported by kernel, resulting
> in a busy loop.  And, more importantly, making existing write timeout
> handling ineffective.
> 
> Suggested change is to only rearm write timeouts if some progress was
> made, in most cases detected by comparing c->sent with the original
> value as saved at the start of the event handler.
> 
> Comments are welcome.

It looks like I've accidentally posted this patch series and a 
couple of previous patches into the nginx@ mailing list instead of 
nginx-devel at freenginx.org, sorry.

-- 
Maxim Dounin
http://mdounin.ru/