Question: the 105% cycles? \ VOGONS

Question: the 105% cycles?

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First post, by DaVince

Posted on 2017-07-28, 16:39

DaVince Offline

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Location: Amsterdam, Netherlands

I became curious about this, and it's a question I haven't found the answer for on the internet... Why is it possible to go beyond 100% cycles in DOSBox? This seems done on purpose, but what does setting it to 105% do exactly?

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Though I am an ordinary man.

Fan of old games & Commander Keen!

Reply 1 of 2, by Qbix

Posted on 2017-07-28, 16:57

Qbix Offline

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we strive for a 90% cpu usage (of your real processor) in auto cycles mode , to leave some room for other things (processes/threads). (which has become less important with all the dual/quatro core machines nowadays)

so by selecting 105%, you tell dosbox to use 90 * 1,05 ( =94,5%) of the cpu time on one of your cores.

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Reply 2 of 2, by DaVince

Posted on 2017-07-28, 16:59

DaVince Offline

Rank Newbie

Rank: Newbie
Posts: 7
Joined: 2006-07-25, 18:40
Location: Amsterdam, Netherlands

Wow, thanks for the quick and clear response! That does sound like it would have made sense back when single-core CPUs were the most common.

Don't see me as an ordinary man.
Though I am an ordinary man.

Fan of old games & Commander Keen!

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