[squid-dev] [PATCH] Collapse internal revalidation requests (SMP-unaware caches)

[Alex Rousskov]

On 07/20/2016 09:48 AM, Alex Rousskov wrote:
> * Transients are needed for SMP caching to work.

Correction for the first line, splitting it into two lines:

- Caching is needed for collapsed forwarding to work.
- Transients are needed for SMP collapsed forwarding to work.


Adjusted summary, for the record:

* Caching is supported in both modes.
  Caching is needed for collapsed forwarding to work.

* Collapsed forwarding is supported in both modes.
* Collapsed revalidation is supported in non-SMP mode only [for now?].
  Collapsed revalidation needs collapsed forwarding.

* Transients are needed for SMP collapsed forwarding to work.
  Transients are not needed for and are harmful in non-SMP mode.
  They are no longer created when not needed, fixing at least bug 4311.

* Configurations mixing SMP-aware and non-SMP-aware caches
  in SMP mode are still not supported.

Alex.