RFR [XXS] 8225402: events logging in deoptimization.cpp should go to deopt-log

Thomas Stüfe thomas.stuefe at gmail.com
Thu Jun 6 09:07:37 UTC 2019


+1

..Thomas

On Thu, Jun 6, 2019 at 10:22 AM Baesken, Matthias <matthias.baesken at sap.com>
wrote:

>
> >
> > Got it. Yes, I agree that they should be also in deopt log.
> >
>
> Hello here is an XXS change that  adjusts the  events - logging in
> deoptimization.cpp  as discussed . Please review .
>
>
> Bug/webrev :
>
> https://bugs.openjdk.java.net/browse/JDK-8225402
>
> http://cr.openjdk.java.net/~mbaesken/webrevs/8225402.0/
>
>
> Thanks, Matthias
>
>
>
> > -----Original Message-----
> > From: Vladimir Kozlov <vladimir.kozlov at oracle.com>
> > Sent: Mittwoch, 5. Juni 2019 18:40
> > To: Baesken, Matthias <matthias.baesken at sap.com>; hotspot-
> > dev at openjdk.java.net
> > Subject: Re: deoptimization.cpp Events::log / Events::log_deopt_message -
> > was : RE: RFR: 8224221: add memprotect calls to event log
> >
> > Got it. Yes, I agree that they should be also in deopt log.
> >
> > Thanks,
> > Vladimir
> >
> > On 6/4/19 1:27 AM, Baesken, Matthias wrote:
> > > Hi Vladimir ,  sure  the  log_deopt_message() is used  for the
> event-logging
> > and the events are later shown  in the hs_err file  .
> > >
> > > However my question was :  in  deoptimization.cpp   we have  ***both***
> > calls  to   Events::log   and     Events::log_deopt_message   .
> > >
> > >    // Log a message
> > >    Events::log(thread, "Uncommon trap: trap_request=" PTR32_FORMAT "
> > fr.pc=" INTPTR_FORMAT " relative=" INTPTR_FORMAT,
> > >                trap_request, p2i(fr.pc()), fr.pc() -
> fr.cb()->code_begin());
> > >
> > > Events::log(thread, "DEOPT PACKING pc=" INTPTR_FORMAT " sp="
> > INTPTR_FORMAT, p2i(fr.pc()), p2i(fr.sp()));
> > >
> > >
> > >      // Log a message
> > >      Events::log_deopt_message(thread, "Uncommon trap: reason=%s
> > action=%s pc=" INTPTR_FORMAT " method=%s @ %d %s",
> > >                                trap_reason_name(reason),
> trap_action_name(action),
> > p2i(fr.pc()),
> > >
> trap_method->name_and_sig_as_C_string(), trap_bci, nm-
> > >compiler_name());
> > >
> > >
> > >
> > >
> > > I think they  all  should  call  Events::log_deopt_message ,  so that
> they go
> > into the  same event log part  that is collecting the de-opt  event
> messages .
> > >
>
>


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