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From: Duo jia <jiaduo19920301@gmail.com>
To: QEMU Developers <qemu-devel@nongnu.org>
Subject: Application of QEMUTimer in short timing.
Date: Tue, 7 Sep 2021 19:26:31 +0800	[thread overview]
Message-ID: <CALUzjTbw0m-n0wmqYPw9C_SFVrCYvqOde6qUsB40FMM9BVPHZg@mail.gmail.com> (raw)

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In the controller, QEMUTimer will be used in the implementation of timer
simulation.

I wrote an auto-loading timer with a period of 1ms and the clock source
used is QEMU_CLOCK_VIRTUAL. But it doesn't seem to be very accurate,
because the actual time after I accumulated it to 500 times took about
700ms.

I think qemu's code will consume some time, is it true?


thank you ~

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             reply	other threads:[~2021-09-07 11:27 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-09-07 11:26 Duo jia [this message]
2021-09-07 12:19 ` Application of QEMUTimer in short timing Peter Maydell
2021-09-08  2:50   ` Duo jia
2021-09-08  9:46     ` Peter Maydell
2021-09-09 12:21       ` Duo jia

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