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Hi Simon,</p>
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Thank you for your message! Unfortunately, I missed your previous message, sorry for this.</p>
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I processed the CI’s trace logs, I got the following performance: bt2 (140.51s) vs bt1 (122.00s). In my opinion, the values are quite similar comparing with my other measurements.</p>
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Best regards,</p>
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Aleksandr</p>
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<div class="PlainText">On 2020-03-13 4:58 p.m., Simon Marchi wrote:<br>
> Hi Aleksander,<br>
> <br>
> I just noticed you did not send your original email to the lttng-dev mailing list,<br>
> please send such request on that mailing list, as it's of public interest:<br>
> <br>
> <a href="https://lists.lttng.org/cgi-bin/mailman/listinfo/lttng-dev" id="LPlnk568087" previewremoved="true">
https://lists.lttng.org/cgi-bin/mailman/listinfo/lttng-dev</a><br>
> <br>
> See my previous response here:<br>
> <br>
> <a href="https://pastebin.com/raw/3Q5PbYXn" id="LPlnk171868" previewremoved="true">
https://pastebin.com/raw/3Q5PbYXn</a><br>
> <br>
> Simon<br>
> <br>
<br>
Hi Aleksander,<br>
<br>
Sorry, I forgot to follow up. Did you get my last message?<br>
<br>
This is the trace we use for benchmarking: <a href="https://files.efficios.com/s/pog5raGkBkH63y9" id="LPlnk502775" previewremoved="true">
https://files.efficios.com/s/pog5raGkBkH63y9</a><br>
<br>
Could you try to compare bt1 and bt2 using that trace?<br>
<br>
On the CI benchmark system, we get some similar performance with both bt1 and bt2. Although<br>
a colleague tried on a recent AMD Ryzen 3700X CPU, and he says bt2 is slower than bt1 for<br>
him (36s vs 33s). I'd be curious to know what kind of numbers you get.<br>
<br>
Simon<br>
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