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Re: Curl upgrade from 7.65.1 to 7.70.0 causing http response processing performance degradation

From: Kunal Chandarana via curl-users <>
Date: Tue, 8 Sep 2020 15:01:00 -0700

On Tue, Sep 8, 2020 at 2:44 PM Daniel Stenberg <> wrote:

> Hi Kunal!
> This is really a topic more suitable for the curl-library list, as this
> list
> is targeted for users of the curl tool. You'll reach the larger crowd of
> libcurl hackers there.

 I am still learning the mailing list etiquette so not sure I am putting my
reply in the right place. I will make a note of using curl-library list.

> I would suggest three action items going forward:
> - Try 7.72.0 and see if the issue is still there
> - If it is, consider bisecting to find exactly which commit that
> introduced
> the problem (as it'll certainly help us to understand what's going on)
> - If bisecting doesn't work or whatever, try writing up an example
> application that reproduces the problem (basically using the same logic
> your application does) so that we can help out debugging it from our
> side.
> If all that fails, then debugging this yourself might be the only way...

Thanks Daniel for the prompt response. I will try the steps you have
recommended and respond back with outcomes.

Received on 2020-09-09