Re: [Qemu-devel] how could I analysis the trace log?

[Wei Yang]

Hi, this kind of trace is not popular?

2012/2/12 Wei Yang <address@hidden>:
> All
>
> I enable the trace function with --enable-trace-backend=simple and I
> create the event file like this
> g_realloc
> g_malloc
>
> Then I start the qemu with following command.
> ./i386-softmmu/qemu-system-i386 -enable-kvm -drive
> file=../../kvm/ubuntu.img -boot dc -m 512 -usb
>  -monitor stdio -trace events=qemu_trace_events,file=qemu_trace.log
>
> After some run time, I run the script like:
> ./scripts/simpletrace.py qemu_trace_events_parse qemu_trace.log
>
> The qemu_trace_events_parse is :
> g_realloc(addr)
> g_malloc(addr)
>
> The output looks like:
> g_malloc 1.831 addr=0xb945d1f0
> g_malloc 2.498 addr=0xb945d1f0
> g_realloc 4.715 addr=0x10
> g_realloc 1.520 addr=0xc
> g_realloc 1.505 addr=0xc
>
> The steps I used is correct?
> I just guess the format of input events file of the simpletrace.py.
> For so many available events, how could I specify the format of all
> those events?
>
> --
> Richard Yang
> Help You, Help Me



-- 
Richard Yang
Help You, Help Me