Re: Re: Re: Re: [PATCH V2 1/1] kvm/vmx: Add a tracepoint write_tsc_offset

2013-06-11 Thread Yoshihiro YUNOMAE
(2013/06/11 15:50), Gleb Natapov wrote: On Mon, Jun 10, 2013 at 05:28:23PM -0300, Marcelo Tosatti wrote: On Mon, Jun 10, 2013 at 07:38:34PM +0300, Gleb Natapov wrote: Guest traces contain vcpu number and not pid (because guest is unaware of host PID). No, guest trace is just a regular ftrace

Re: Re: Re: [PATCH V2 1/1] kvm/vmx: Add a tracepoint write_tsc_offset

2013-06-10 Thread Gleb Natapov
On Mon, Jun 10, 2013 at 05:28:23PM -0300, Marcelo Tosatti wrote: > On Mon, Jun 10, 2013 at 07:38:34PM +0300, Gleb Natapov wrote: > > > Guest traces contain vcpu number and not pid (because guest is unaware > > > of host PID). > > > > > No, guest trace is just a regular ftrace done inside a guest.

Re: Re: Re: [PATCH V2 1/1] kvm/vmx: Add a tracepoint write_tsc_offset

2013-06-10 Thread Marcelo Tosatti
On Mon, Jun 10, 2013 at 07:38:34PM +0300, Gleb Natapov wrote: > > Guest traces contain vcpu number and not pid (because guest is unaware > > of host PID). > > > No, guest trace is just a regular ftrace done inside a guest. It contains > guest's PIDs which is useless for host. # tracer: nop # # e

Re: Re: Re: [PATCH V2 1/1] kvm/vmx: Add a tracepoint write_tsc_offset

2013-06-10 Thread Gleb Natapov
On Mon, Jun 10, 2013 at 11:04:24AM -0300, Marcelo Tosatti wrote: > On Mon, Jun 10, 2013 at 01:05:05PM +0300, Gleb Natapov wrote: > > On Mon, Jun 10, 2013 at 06:30:42PM +0900, Yoshihiro YUNOMAE wrote: > > > Hi Gleb, > > > > > > (2013/06/09 20:14), Gleb Natapov wrote: > > > >On Fri, Jun 07, 2013 at

Re: Re: Re: [PATCH V2 1/1] kvm/vmx: Add a tracepoint write_tsc_offset

2013-06-10 Thread Marcelo Tosatti
On Mon, Jun 10, 2013 at 01:05:05PM +0300, Gleb Natapov wrote: > On Mon, Jun 10, 2013 at 06:30:42PM +0900, Yoshihiro YUNOMAE wrote: > > Hi Gleb, > > > > (2013/06/09 20:14), Gleb Natapov wrote: > > >On Fri, Jun 07, 2013 at 02:22:22PM +0900, Yoshihiro YUNOMAE wrote: > > >>(2013/06/06 20:33), Gleb Nat

Re: Re: Re: Re: [PATCH V2 1/1] kvm/vmx: Add a tracepoint write_tsc_offset

2013-06-10 Thread Yoshihiro YUNOMAE
Hi Gleb, (2013/06/10 19:05), Gleb Natapov wrote: On Mon, Jun 10, 2013 at 06:30:42PM +0900, Yoshihiro YUNOMAE wrote: Hi Gleb, (2013/06/09 20:14), Gleb Natapov wrote: On Fri, Jun 07, 2013 at 02:22:22PM +0900, Yoshihiro YUNOMAE wrote: (2013/06/06 20:33), Gleb Natapov wrote: On Wed, Jun 05, 201

Re: Re: Re: [PATCH V2 1/1] kvm/vmx: Add a tracepoint write_tsc_offset

2013-06-10 Thread Gleb Natapov
On Mon, Jun 10, 2013 at 06:30:42PM +0900, Yoshihiro YUNOMAE wrote: > Hi Gleb, > > (2013/06/09 20:14), Gleb Natapov wrote: > >On Fri, Jun 07, 2013 at 02:22:22PM +0900, Yoshihiro YUNOMAE wrote: > >>(2013/06/06 20:33), Gleb Natapov wrote: > >>>On Wed, Jun 05, 2013 at 09:23:22PM -0300, Marcelo Tosatti

Re: Re: Re: [PATCH V2 1/1] kvm/vmx: Add a tracepoint write_tsc_offset

2013-06-10 Thread Yoshihiro YUNOMAE
Hi Gleb, (2013/06/09 20:14), Gleb Natapov wrote: On Fri, Jun 07, 2013 at 02:22:22PM +0900, Yoshihiro YUNOMAE wrote: (2013/06/06 20:33), Gleb Natapov wrote: On Wed, Jun 05, 2013 at 09:23:22PM -0300, Marcelo Tosatti wrote: On Tue, Jun 04, 2013 at 05:36:19PM +0900, Yoshihiro YUNOMAE wrote: Add

Re: Re: [PATCH V2 1/1] kvm/vmx: Add a tracepoint write_tsc_offset

2013-06-09 Thread Gleb Natapov
On Fri, Jun 07, 2013 at 02:22:22PM +0900, Yoshihiro YUNOMAE wrote: > (2013/06/06 20:33), Gleb Natapov wrote: > >On Wed, Jun 05, 2013 at 09:23:22PM -0300, Marcelo Tosatti wrote: > >>On Tue, Jun 04, 2013 at 05:36:19PM +0900, Yoshihiro YUNOMAE wrote: > >>>Add a tracepoint write_tsc_offset for tracing

Re: Re: [PATCH V2 1/1] kvm/vmx: Add a tracepoint write_tsc_offset

2013-06-07 Thread Marcelo Tosatti
On Fri, Jun 07, 2013 at 02:22:22PM +0900, Yoshihiro YUNOMAE wrote: > (2013/06/06 20:33), Gleb Natapov wrote: > >On Wed, Jun 05, 2013 at 09:23:22PM -0300, Marcelo Tosatti wrote: > >>On Tue, Jun 04, 2013 at 05:36:19PM +0900, Yoshihiro YUNOMAE wrote: > >>>Add a tracepoint write_tsc_offset for tracing

Re: [PATCH V2 1/1] kvm/vmx: Add a tracepoint write_tsc_offset

2013-06-07 Thread Marcelo Tosatti
On Thu, Jun 06, 2013 at 02:33:06PM +0300, Gleb Natapov wrote: > On Wed, Jun 05, 2013 at 09:23:22PM -0300, Marcelo Tosatti wrote: > > On Tue, Jun 04, 2013 at 05:36:19PM +0900, Yoshihiro YUNOMAE wrote: > > > Add a tracepoint write_tsc_offset for tracing TSC offset change. > > > We want to merge ftrac

Re: Re: [PATCH V2 1/1] kvm/vmx: Add a tracepoint write_tsc_offset

2013-06-06 Thread Yoshihiro YUNOMAE
(2013/06/06 20:33), Gleb Natapov wrote: On Wed, Jun 05, 2013 at 09:23:22PM -0300, Marcelo Tosatti wrote: On Tue, Jun 04, 2013 at 05:36:19PM +0900, Yoshihiro YUNOMAE wrote: Add a tracepoint write_tsc_offset for tracing TSC offset change. We want to merge ftrace's trace data of guest OSs and the

Re: [PATCH V2 1/1] kvm/vmx: Add a tracepoint write_tsc_offset

2013-06-06 Thread Gleb Natapov
On Wed, Jun 05, 2013 at 09:23:22PM -0300, Marcelo Tosatti wrote: > On Tue, Jun 04, 2013 at 05:36:19PM +0900, Yoshihiro YUNOMAE wrote: > > Add a tracepoint write_tsc_offset for tracing TSC offset change. > > We want to merge ftrace's trace data of guest OSs and the host OS using > > TSC for timestam

Re: [PATCH V2 1/1] kvm/vmx: Add a tracepoint write_tsc_offset

2013-06-05 Thread Marcelo Tosatti
On Tue, Jun 04, 2013 at 05:36:19PM +0900, Yoshihiro YUNOMAE wrote: > Add a tracepoint write_tsc_offset for tracing TSC offset change. > We want to merge ftrace's trace data of guest OSs and the host OS using > TSC for timestamp in chronological order. We need "TSC offset" values for > each guest wh

[PATCH V2 1/1] kvm/vmx: Add a tracepoint write_tsc_offset

2013-06-04 Thread Yoshihiro YUNOMAE
Add a tracepoint write_tsc_offset for tracing TSC offset change. We want to merge ftrace's trace data of guest OSs and the host OS using TSC for timestamp in chronological order. We need "TSC offset" values for each guest when merge those because the TSC value on a guest is always the host TSC plus