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From: Paolo Bonzini <pbonzini@redhat.com>
To: guangrong.xiao@gmail.com, mst@redhat.com, mtosatti@redhat.com
Cc: qemu-devel@nongnu.org, kvm@vger.kernel.org,
	Xiao Guangrong <xiaoguangrong@tencent.com>
Subject: Re: [PATCH] qtest: add rtc periodic timer test
Date: Thu, 25 May 2017 18:03:32 +0200	[thread overview]
Message-ID: <210485b2-c6f5-2f57-f196-dc1b25bbe243@redhat.com> (raw)
In-Reply-To: <20170525031936.8449-1-xiaoguangrong@tencent.com>



On 25/05/2017 05:19, guangrong.xiao@gmail.com wrote:
> 
> Note: as qemu needs a precise timer to drive its rtc timer callbacks,
> that means clock=vm is not suitable for us as it's driven by icount
> for qtest, so that we use clock=host instead, it is why we put the
> periodic timer test separately without mixing with rtc-test

I'm not sure I understand.  Why would clock_step(1000) not be a good
replacement for nsleep(1000)?

Thanks,

Paolo

WARNING: multiple messages have this Message-ID (diff)
From: Paolo Bonzini <pbonzini@redhat.com>
To: guangrong.xiao@gmail.com, mst@redhat.com, mtosatti@redhat.com
Cc: qemu-devel@nongnu.org, kvm@vger.kernel.org,
	Xiao Guangrong <xiaoguangrong@tencent.com>
Subject: Re: [Qemu-devel] [PATCH] qtest: add rtc periodic timer test
Date: Thu, 25 May 2017 18:03:32 +0200	[thread overview]
Message-ID: <210485b2-c6f5-2f57-f196-dc1b25bbe243@redhat.com> (raw)
In-Reply-To: <20170525031936.8449-1-xiaoguangrong@tencent.com>



On 25/05/2017 05:19, guangrong.xiao@gmail.com wrote:
> 
> Note: as qemu needs a precise timer to drive its rtc timer callbacks,
> that means clock=vm is not suitable for us as it's driven by icount
> for qtest, so that we use clock=host instead, it is why we put the
> periodic timer test separately without mixing with rtc-test

I'm not sure I understand.  Why would clock_step(1000) not be a good
replacement for nsleep(1000)?

Thanks,

Paolo

  reply	other threads:[~2017-05-25 16:03 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-05-25  3:19 [PATCH] qtest: add rtc periodic timer test guangrong.xiao
2017-05-25  3:19 ` [Qemu-devel] " guangrong.xiao
2017-05-25 16:03 ` Paolo Bonzini [this message]
2017-05-25 16:03   ` Paolo Bonzini
2017-05-26  3:21   ` Xiao Guangrong
2017-05-26  3:21     ` [Qemu-devel] " Xiao Guangrong
2017-05-26 11:03     ` Paolo Bonzini
2017-05-26 11:03       ` [Qemu-devel] " Paolo Bonzini
2017-05-27  2:59       ` Xiao Guangrong

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