from this,
https://forums.macrumors.com/threads/imac-2017-27-best-value-model.2086434/#post-25908560
and from this,
https://forums.macrumors.com/threads/display-size-on-making-betterdecisions.2111056/
inspires this,
the net value of using an imac = relative degree of value : needs
a good heuristic of when an imac is effective = if the value of using an imac is 5% above your needs
* we give 5% for the unpredictable unknowns of the future
1. we need good tests to find out the value of using an imac
tests lead to a benchmark, which is a data point, or some metrics (see https://en.wikipedia.org/wiki/Benchmark_(computing) )
this type/kind of testing is call https://en.wikipedia.org/wiki/Benchmarking
for example, this is a benchmark for mac 27 - geekbench.com/blog/2017/06/imac-27-inch-performance-june-2017/
dunno how reliable this test is
do you know what is the most reliable test for imacs out there?
2. we also need to know the basic needs
seen on the main post - https://forums.macrumors.com/thread...xperienced-users-it-would-be-helpful.2110913/
--
better test gives us better ideas of the value of an imac
bad tests -> bad data/metrics
good tests -> more reliable data/metrics
for example,
* if we say the data/metric of the market share of various desktop oses = how good an os is
* then win10 is significantly better than all the other desktop oses
a popularity data based on total quantity does not reliably tell us how good an os is, or that it is 80% better relative to the other oses (see https://en.wikipedia.org/wiki/Usage_share_of_web_browsers#Differences_in_measurement)
let's take chrome as an example,
* with web clients, chrome is free, and all other options are free
* this makes for a more equal comparison of the value of web clients to the users
but apple products cost more than microsoft products, so that's (likely?) a significant difference, and thus not an equal comparison
a) tests are helpful when they measure what matters
chrome uses more resources than firefox (total quantity),
* but as an article says, "what matters is if the resources are used well".
for web clients, it's not about the total quantity of resources used, it's about "responsiveness, which is what matters to pretty much all users"
b) good tests are up to date, bad tests are outdated
google made a test call 'octane' as a better replacement of 'sunspider', but it's now outdated (see https://arstechnica.com/information...chmark-because-everyone-is-basically-cheating)
c) many tests are not representative or reflective of real life usage & significance (aka: they're flawed & meaningless)
"This has led to browser makers focusing on edge cases that never matter in the real world" (from an article)
--
the net value of using an imac = relative degree of value : needs
a good heuristic of when an imac is effective = if using an imac is 5% above your needs
* we give 5% for the unpredictable unknowns of the future
1. we need good tests to find out the value of using an imac
2. we also need to know the basic needs
then divide
=======
to sum up,
effectiveness & tests - a primer on how to decide between imacs
---
click to see all posts here: https://forums.macrumors.com/members/whichimac.1123719/
https://forums.macrumors.com/threads/imac-2017-27-best-value-model.2086434/#post-25908560
and from this,
https://forums.macrumors.com/threads/display-size-on-making-betterdecisions.2111056/
inspires this,
the net value of using an imac = relative degree of value : needs
a good heuristic of when an imac is effective = if the value of using an imac is 5% above your needs
* we give 5% for the unpredictable unknowns of the future
1. we need good tests to find out the value of using an imac
tests lead to a benchmark, which is a data point, or some metrics (see https://en.wikipedia.org/wiki/Benchmark_(computing) )
this type/kind of testing is call https://en.wikipedia.org/wiki/Benchmarking
for example, this is a benchmark for mac 27 - geekbench.com/blog/2017/06/imac-27-inch-performance-june-2017/
dunno how reliable this test is
do you know what is the most reliable test for imacs out there?
2. we also need to know the basic needs
seen on the main post - https://forums.macrumors.com/thread...xperienced-users-it-would-be-helpful.2110913/
--
better test gives us better ideas of the value of an imac
bad tests -> bad data/metrics
good tests -> more reliable data/metrics
for example,
* if we say the data/metric of the market share of various desktop oses = how good an os is
* then win10 is significantly better than all the other desktop oses
a popularity data based on total quantity does not reliably tell us how good an os is, or that it is 80% better relative to the other oses (see https://en.wikipedia.org/wiki/Usage_share_of_web_browsers#Differences_in_measurement)
let's take chrome as an example,
* with web clients, chrome is free, and all other options are free
* this makes for a more equal comparison of the value of web clients to the users
but apple products cost more than microsoft products, so that's (likely?) a significant difference, and thus not an equal comparison
a) tests are helpful when they measure what matters
chrome uses more resources than firefox (total quantity),
* but as an article says, "what matters is if the resources are used well".
for web clients, it's not about the total quantity of resources used, it's about "responsiveness, which is what matters to pretty much all users"
b) good tests are up to date, bad tests are outdated
google made a test call 'octane' as a better replacement of 'sunspider', but it's now outdated (see https://arstechnica.com/information...chmark-because-everyone-is-basically-cheating)
c) many tests are not representative or reflective of real life usage & significance (aka: they're flawed & meaningless)
"This has led to browser makers focusing on edge cases that never matter in the real world" (from an article)
--
the net value of using an imac = relative degree of value : needs
a good heuristic of when an imac is effective = if using an imac is 5% above your needs
* we give 5% for the unpredictable unknowns of the future
1. we need good tests to find out the value of using an imac
2. we also need to know the basic needs
then divide
=======
to sum up,
effectiveness & tests - a primer on how to decide between imacs
---
click to see all posts here: https://forums.macrumors.com/members/whichimac.1123719/
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