ThreadWorkers CPU usage

[abma]

ingame in the /debug view, there are these entries:

::ThreadWorkers(accumulated)
::ThreadWorkers(real)

the max-%usage values are

2,37%
3,95%

is this normal? shouldn't the values be higher?

do i understand it correctly, that only at max ~4% cpu usage is shared accross cores?

[jK]

`accumulated` is the time when you add the time of each thread -> time a single thread would need to compute the task
`real` is the time that was really spend on the task -> multi threaded performance

So `real` is always < `accumulated` and 'accumulated`/`real` is near cpu core count

And when you want to know how much of the engine runs threaded, it's `accumulated` you want to check.
Also the range of it atm is 4-12%.

[abma]

i'm having the problem that spring HEAVILY lags when it tries to use all cores (8). When i set WorkerThreadCount = 2 cores its a lot faster / smooth. but still the max ThreadWorkers(accumulated) is 4.4%. the usual seems 1-2%.

Also the range of it atm is 4-12%.

i never reach this. Its always below 4%.

very likely relevant:

$ grep model /proc/cpuinfo |tail -n 1
model name : AMD FX-8320E Eight-Core Processor

ideas what to test / how to improve this?

[Super Mario]

i'm having the problem that spring HEAVILY lags when it tries to use all cores (8). When i set WorkerThreadCount = 2 cores its a lot faster / smooth. but still the max ThreadWorkers(accumulated) is 4.4%. the usual seems 1-2%.

Also the range of it atm is 4-12%.

i never reach this. Its always below 4%.

very likely relevant:

$ grep model /proc/cpuinfo |tail -n 1
model name : AMD FX-8320E Eight-Core Processor

ideas what to test / how to improve this?

How do you even do that? By editing the source code?

[abma]

How do you even do that? By editing the source code?

https://springrts.com/wiki/Springsettin ... hreadCount

also you should avoid full-quotes. its not 100% clear what you mean / what you are referencing. "that" could be everything in the post.

[Super Mario]

Oh ok, looks like it needs some profile testing.

[jK]

check the example in the comments:
https://github.com/spring/spring/commit ... d4d4b762b1