Re: [Bloat] Ookla - Introducing a Better Measure of Latency

["Klatsky, Carl" <Carl_Klatsky@comcast.com>]

Its good that they are running the latency test also during the load test, but from what it looks like, they seem to be running the latency test to the same server as the load test.  I think a more realistic test is to run the load test to one server and the latency test to a different server.  That's a more realistic use case...

Regards,
Carl Klatsky

-----Original Message-----
From: Bloat <bloat-bounces@lists.bufferbloat.net> On Behalf Of Christoph Paasch via Bloat
Sent: Thursday, May 12, 2022 4:01 PM
To: nichols@pollere.net
Cc: bloat@lists.bufferbloat.net
Subject: Re: [Bloat] Ookla - Introducing a Better Measure of Latency

I'm not aware of any rigorous study. But, just from the code, I know ICMP ping in many cases has a different traffic-class and thus implicitly gets quite a different treatment than real traffic.

However, Ookla uses TCP (port 8080) to probe the latency in their app.


Christoph

> On May 12, 2022, at 12:44 PM, Kathleen Nichols <nichols@pollere.net> wrote:
>
> a ping by any other name...
>
> Has anyone ever done a rigorous study to see how well ping delays correspond to the delay that information-carrying packets experience?
>
> On 5/12/22 10:15 AM, Christoph Paasch via Bloat wrote:
>> Ookla's measure of "loaded latency":
>> https://urldefense.com/v3/__https://www.ookla.com/articles/introducin
>> g-loaded-latency__;!!CQl3mcHX2A!DHnGDBw2sqsRwHiidAQUOhjXEavZmBOtJKb_IzPhxMm2vqUPyRC2pkVnScJId_KdaNVLsOS7sD0E8QRQ0m8B7LqBavY$  <https://urldefense.com/v3/__https://www.ookla.com/articles/introducing-loaded-latency__;!!CQl3mcHX2A!DHnGDBw2sqsRwHiidAQUOhjXEavZmBOtJKb_IzPhxMm2vqUPyRC2pkVnScJId_KdaNVLsOS7sD0E8QRQ0m8B7LqBavY$ > This will hopefully be a shift in how operators approach the bufferbloat problem.
>> Christoph
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