Re: [Qemu-devel] Para-Virtualized Clock Usage

2013-05-16 Thread Gleb Natapov
--- > From: Gleb Natapov [mailto:g...@redhat.com] > Sent: Wednesday, April 24, 2013 11:57 PM > To: Joji Mekkattuparamban (joji) > Cc: Marcelo Tosatti; qemu-devel@nongnu.org; k...@vger.kernel.org > Subject: Re: [Qemu-devel] Para-Virtualized Clock Usage > > On Thu, Apr 25, 2013 at

Re: [Qemu-devel] Para-Virtualized Clock Usage

2013-05-15 Thread Joji Mekkattuparamban (joji)
Subject: Re: [Qemu-devel] Para-Virtualized Clock Usage On Thu, Apr 25, 2013 at 12:28:35AM +, Joji Mekkattuparamban (joji) wrote: > Thank you Gleb and Marcelo. I will migrate the API using gettimeofday. > > Is there any dependency on the QEMU or the Guest? If the host supports >

Re: [Qemu-devel] Para-Virtualized Clock Usage

2013-04-24 Thread Gleb Natapov
[mailto:mtosa...@redhat.com] > Sent: Wednesday, April 24, 2013 1:28 AM > To: Gleb Natapov > Cc: Joji Mekkattuparamban (joji); qemu-devel@nongnu.org; k...@vger.kernel.org > Subject: Re: [Qemu-devel] Para-Virtualized Clock Usage > > On Tue, Apr 23, 2013 at 08:52:16AM +0300, Gleb Natapov wro

Re: [Qemu-devel] Para-Virtualized Clock Usage

2013-04-24 Thread Joji Mekkattuparamban (joji)
? Thanks! Joji. -Original Message- From: Marcelo Tosatti [mailto:mtosa...@redhat.com] Sent: Wednesday, April 24, 2013 1:28 AM To: Gleb Natapov Cc: Joji Mekkattuparamban (joji); qemu-devel@nongnu.org; k...@vger.kernel.org Subject: Re: [Qemu-devel] Para-Virtualized Clock Usage On Tue, Apr 23

Re: [Qemu-devel] Para-Virtualized Clock Usage

2013-04-24 Thread Marcelo Tosatti
On Tue, Apr 23, 2013 at 08:52:16AM +0300, Gleb Natapov wrote: > On Mon, Apr 22, 2013 at 04:58:01PM +, Joji Mekkattuparamban (joji) wrote: > > Greetings, > > > > I have a SMP guest application, running on the 2.6.27 Linux kernel. The > > application, originally written for bare metal, makes ex

Re: [Qemu-devel] Para-Virtualized Clock Usage

2013-04-22 Thread Gleb Natapov
On Mon, Apr 22, 2013 at 04:58:01PM +, Joji Mekkattuparamban (joji) wrote: > Greetings, > > I have a SMP guest application, running on the 2.6.27 Linux kernel. The > application, originally written for bare metal, makes extensive use of the > TSC, by directly invoking rdtsc from the user spac

[Qemu-devel] Para-Virtualized Clock Usage

2013-04-22 Thread Joji Mekkattuparamban (joji)
Greetings, I have a SMP guest application, running on the 2.6.27 Linux kernel. The application, originally written for bare metal, makes extensive use of the TSC, by directly invoking rdtsc from the user space for timestamp purposes. While running on KVM (RHEL version 6.3), we are running into