Re: [Xen-devel] [PATCH 1/5] xentrace_format: print timestamps in nanoseconds

[Andrii Anisov <andrii_anisov@xxxxxxxx>]

Hello Dario,


On 12.09.18 10:42, Dario Faggioli wrote:
> Sorry, I'm not sure I'm getting this properly. When you say "with the
> current formula", do you mean before or after this series?
I did mean the formula existing before this series.

> IAC, changing the default format file that we ship so that it prints
> time in the format seconds.nanoseconds (if CPU speed is specified),
> would be nice IMO.
On the second though I realized it is quite inconvenient. From the 
formats file we can't distinguish if tsc contains float sec.ns or 
integer cycles. For cycles it will look like following:
   CPU0          1090699305.000000000 (+     336) rtds:tickle        [
   cpu = 0 ]


> As said already, the one reason why I think
> it still could be useful, and we should keep it, is that the way a
> trace will look like can be changed or tweaked rather easily, and
> without having to recompile anything, via the formats file, which is
> rather cool. :-)
+1

--

*Andrii Anisov*



_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxxx
https://lists.xenproject.org/mailman/listinfo/xen-devel