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  Thread: CPU and granted time

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KLiK
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Croatia
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Re: CPU and granted time
This is actually very good to know.
So the only thing that matters is core count and not how fast each CPU's clock speed is.
I'm sure this is obvious but I'll ask here anyway - 2 8 core androids would theoretically add 16 days of runtime, too?
thanks

Yes, but Androids are not that stable...so don't know how good it will work?!

Better make a investment for a small computer with intel Atom..those are electrically cheap & also do the job!
wink
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adriverhoef
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Re: CPU and granted time
I'm sure this is obvious but I'll ask here anyway - 2 8 core androids would theoretically add 16 days of runtime, too?
In theory, yes, but practically, no, 'cause all that counts is CPU-Time, not Elapsed Time.
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wolfman1360
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Re: CPU and granted time
I think I see now.
Any little thing the operating system does takes away from boinc CPU time even if it's 0.2%.
So, if something took 7^ of the processor for 15 hours, that's very close to half a day gone out of boincs available 8 cores (or days).
In other news, I'm bad at math :P.
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KLiK
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Re: CPU and granted time
I think I see now.
Any little thing the operating system does takes away from boinc CPU time even if it's 0.2%.
So, if something took 7^ of the processor for 15 hours, that's very close to half a day gone out of boincs available 8 cores (or days).
In other news, I'm bad at math :P.

Just go to BOINC dir.
Find client_state.xml
Open it & find something like:
-<time_stats>
<on_frac>0.288756</on_frac>
<connected_frac>0.845035</connected_frac>
<cpu_and_network_available_frac>0.844778</cpu_and_network_available_frac>
<active_frac>0.999667</active_frac>
<gpu_active_frac>0.999020</gpu_active_frac>
<client_start_time>1508222102.533085</client_start_time>
<total_start_time>1438939291.786905</total_start_time>
<total_duration>681391.727724</total_duration>
<total_active_duration>680765.016862</total_active_duration>
<total_gpu_active_duration>679612.889010</total_gpu_active_duration>
<previous_uptime>16435.414207</previous_uptime>
<last_update>1508238531.947657</last_update>
</time_stats>

There's active_frac which you multiply with your cores/threads to get the amount of CPU time consumed.
Same with gpu_active_frac for GPU availability for BOINC.
cool
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