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To: tor-talk@lists.torproject.org
References: <1458237928.4872.0.camel@darkdepths.net>
From: Karsten Loesing <karsten@torproject.org>
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Date: Fri, 18 Mar 2016 09:06:31 +0100
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Subject: Re: [tor-talk] Latency Spike
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On 17/03/16 19:05, poly wrote:
> Could anyone please explain the reason behind this spike [0] to
> me?
> 
> [0]
> https://metrics.torproject.org/torperf.png?start=2015-12-18&end=201
>
> 
6-03-17&source=all&filesize=50kb

Hard to say.  There have been more timeouts and failures on that day,
too, which would lead to fewer actual measurements going into the
graph you posted:

https://metrics.torproject.org/torperf-failures.html?start=2015-12-18&end=2016-03-17&source=all&filesize=50kb

But note how the first quartile and median stay unchanged and just the
third quartile goes up.  Nothing to worry about, just more outliers
than usual, I'd say.

Feel free to take a closer look at the data, and maybe you'll find
something I'm overlooking:

https://metrics.torproject.org/torperf-data.html

https://collector.torproject.org/#type-torperf

All the best,
Karsten

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