Saturday, June 28, 2014

#LatencyTipOfTheDay: Median Server Response Time: The number that 99.9999999999% of page views can be worse than.

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The math is simple: The median server response time (MSRT) is measured per request. Pages have many requests. % of page view that wil...
63 comments:

#LatencyTipOfTheDay: MOST page loads will experience the 99%'lie server response

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Yes. MOST of the page view attempts will experience the 99%'lie server response time in modern web applications. You didn't read th...
195 comments:
Saturday, June 21, 2014

#LatencyTipOfTheDay:
Q: What's wrong with this picture?
A: Everything!

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Question: What's wrong with this picture: Answer: Everything! This single chart (source redacted to protect the guilty) is a gr...
66 comments:

#LatencyTipOfTheDay: If you are not measuring and/or plotting Max, what are you hiding (from)?

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When you monitor response times or latency in any form, and don't measure Max values for response times or latency, or don't monitor...
40 comments:

#LatencyTipOfTheDay : Measure what you need to monitor. Don't just monitor what you happen to be able to easily measure.

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25 comments:
Wednesday, June 18, 2014

#LatencyTipOfTheDay: Average (def): a random number that falls somewhere between the maximum and 1/2 the median. Most often used to ignore reality.

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Averages are silly things when it comes to latency. I've yet to meet an application that actually has a use for, or a valid business or ...
39 comments:

#LatencyTipOfTheDay: You can't average percentiles. Period.

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I run into the following situation way too often: You have some means of measuring and collecting latency, and you want to report on it...
178 comments: