Em Fri, Jul 31, 2020 at 06:46:21PM -0600, David Ahern escreveu:
> On 7/31/20 12:05 PM, pet...@infradead.org wrote:
> > On Fri, Jul 31, 2020 at 08:36:12AM -0700, Andi Kleen wrote:
> >>> yep, we have a customer that needs to compare data from multiple servers
> >> It's also needed to correlate over
On 7/31/20 12:05 PM, pet...@infradead.org wrote:
> On Fri, Jul 31, 2020 at 08:36:12AM -0700, Andi Kleen wrote:
>>> yep, we have a customer that needs to compare data from multiple servers
>>
>> It's also needed to correlate over different guests on the same machine.
>> This is an important use
On Fri, Jul 31, 2020 at 08:36:12AM -0700, Andi Kleen wrote:
> > yep, we have a customer that needs to compare data from multiple servers
>
> It's also needed to correlate over different guests on the same machine.
> This is an important use case.
Both these cases you want to sync up
On Thu, Jul 30, 2020 at 07:21:54PM -0600, David Ahern wrote:
> On 7/30/20 4:14 PM, pet...@infradead.org wrote:
> > On Thu, Jul 30, 2020 at 11:39:44PM +0200, Jiri Olsa wrote:
> >
> >> The patchset is adding the ability to display TOD/wallclock timestamp
> >> in 'perf script' output and in 'perf
> yep, we have a customer that needs to compare data from multiple servers
It's also needed to correlate over different guests on the same machine.
This is an important use case.
It would be nice if we could find a way to export the per guest
TSC offset from KVM, then we could use the more
On Thu, Jul 30, 2020 at 07:21:54PM -0600, David Ahern wrote:
> On 7/30/20 4:14 PM, pet...@infradead.org wrote:
> > On Thu, Jul 30, 2020 at 11:39:44PM +0200, Jiri Olsa wrote:
> >
> >> The patchset is adding the ability to display TOD/wallclock timestamp
> >> in 'perf script' output and in 'perf
On 7/30/20 4:14 PM, pet...@infradead.org wrote:
> On Thu, Jul 30, 2020 at 11:39:44PM +0200, Jiri Olsa wrote:
>
>> The patchset is adding the ability to display TOD/wallclock timestamp
>> in 'perf script' output and in 'perf data convert --to-ctf' subcommand,
>> so the converted CTF data contain
On Thu, Jul 30, 2020 at 11:39:44PM +0200, Jiri Olsa wrote:
> The patchset is adding the ability to display TOD/wallclock timestamp
> in 'perf script' output and in 'perf data convert --to-ctf' subcommand,
> so the converted CTF data contain TOD/wallclock timestamps.
But why? Wallclock is a
hi,
this patchset is based on changes made by David Ahern long time ago.
The perf code moved a lot since then, but the idea is the same.
The patchset is adding the ability to display TOD/wallclock timestamp
in 'perf script' output and in 'perf data convert --to-ctf' subcommand,
so the converted
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