<div dir="ltr">I buy an exception here if the configuration defaults to off (no change).<div><br></div><div>Thanks!</div></div><div class="gmail_extra"><br><br><div class="gmail_quote">On Mon, Sep 9, 2013 at 8:29 AM, Thierry Carrez <span dir="ltr"><<a href="mailto:thierry@openstack.org" target="_blank">thierry@openstack.org</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div class="im"><a href="mailto:stuart.mclaren@hp.com">stuart.mclaren@hp.com</a> wrote:<br>
> This change:<br>
><br>
> <a href="https://review.openstack.org/#/c/32919/" target="_blank">https://review.openstack.org/#/c/32919/</a><br>
><br>
> is the final piece of a puzzle that allows a (potentially significant)<br>
> performance improvement for image uploads (snapshots)/downloads when<br>
> using ssl.<br>
<br>
</div>I guess that's why I like puzzles being targeted to the second milestone<br>
in the cycle... deferring those is painful.<br>
<div class="im"><br>
> Without this patch swift will be a bottleneck running at ~17 MB/s while<br>
> the other parts can potentially reach ~100 MB/s.<br>
><br>
> Risk: Currently the patch sets compression to be disabled by default<br>
> (giving better performance), but the old behaviour can be reverted<br>
> by setting the relevant config parameter. (We could even potentially<br>
> consider defaulting to the old behaviour.)<br>
<br>
</div>At this stage of the cycle, I would definitely consider defaulting to<br>
the old behavior for Havana, and then this exception would be a<br>
no-brainer. With the proposed default, I have to ask how much mileage<br>
the "SSL without compression" swift mode has seen, and the risk is<br>
substantially higher.<br>
<div class="im"><br>
> The patch was originally uploaded on Jun 13.<br>
<br>
</div>Yes, but it was WIP-ed for two months waiting for the necessary support<br>
to land in Swift...<br>
<span class="HOEnZb"><font color="#888888"><br>
--<br>
Thierry Carrez (ttx)<br>
</font></span><div class="HOEnZb"><div class="h5"><br>
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