Is there a way to disable HotSpot only when the debugger is started?
----- Original Message -----
From: "Paul Kinnucan" <[EMAIL PROTECTED]>
To: "David Hay" <[EMAIL PROTECTED]>; <[EMAIL PROTECTED]>
Sent: Thursday, May 04, 2000 13:45
Subject: RE: switching to jdk1.3
> At 10:59 AM 5/4/00 -0600, you wrote:
> >
> > Just rename the "hotspot" directory in jre/bin to something else (I use
> > "hotspot-off"). To re-enable, just rename the directory back to
"hotspot".
> >
> > At least, that's the only way I've been able to figure out how to do it
>
>
> Another way is to set the variable jde-run-classic-mode-vm. Here's the doc
for
> this variable:
>
> jde-run-classic-mode-vm's value is
> nil
>
> Documentation:
> Runs applications in the classic (i.e., not HotSpot) mode.
>
> You can customize this variable.
>
> Defined in `jde-run'.
>
>
> - Paul
>
>
> >
> >
> > David Hay
> > Senior Software Engineer
> > Requisite Technology, Inc.
> > [EMAIL PROTECTED]
> > 303-474-2268
> >
> > "Failure has a thousand explanations. Success doesn't need one" -- Sir
Alec
> > Guiness
> >>
> >> -----Original Message-----
> >> From: Brian Anderson [mailto:[EMAIL PROTECTED]]
> >> Sent: Thursday, May 04, 2000 10:54 AM
> >> To: 'Paul Kinnucan'; Rich Johns; [EMAIL PROTECTED]
> >> Subject: RE: switching to jdk1.3
> >>
> >> How does one turn off hotspot?
> >>
> >> -----Original Message-----
> >> From: Paul Kinnucan
> [<mailto:[EMAIL PROTECTED]>mailto:[EMAIL PROTECTED]]
> >> Sent: Thursday, May 04, 2000 8:14 AM
> >> To: Rich Johns; [EMAIL PROTECTED]
> >> Subject: Re: switching to jdk1.3
> >>
> >> At 03:51 PM 5/3/00 -0500, you wrote:
> >> >nt4.0
> >> >jde2.16beta23
> >> >
> >> >I'm upgrading from jdk1.2.2 to jdk1.3 and was wondering
> >> >what changes I will need to make to my current jde setup.
> >> >I mean is it radical? I recall that there is a different way to
> >> >handle the jpda stuff.
> >> >
> >>
> >> These are the differences I recall off the top of my head.
> >>
> >> * JDK 1.3 includes JPDA. Thus configuring JDEbug for JDK 1.3 is
> >> somewhat different. The procedure is documented in the beta23
> >> user's guide.
> >>
> >> * JDK 1.3 includes a new version of jdb based on JPDA. The new
> >> version breaks the JDE's jdb interface. If you want to use the
> >> JDE with jdb, you have to use the old jdb, which is included, oddly
> >> enough, in JDK 1.3 under the name oldjdb.
> >>
> >> * The JDK 1.3 src hierarchy has a slightly different structure. If you
> >> have been including the JDK source code in the debugger source path,
> >> you will have to modify jde-db-source-directories to reflect the new
> >> structure.
> >>
> >> * The JDK 1.3 vm is based on hot spot rather than jit technology. Sun
> >> acknowledges that the hotspot compiler causes problems for JPDA. I've
> >> noticed severe performance degredation and problems hitting
breakpoints.
> >> The workaround until Sun fixes the problems is to turn off the
hotspot
> >> compiler when debugging.
> >>
> >> - Paul
> >>
> >> ------------------------------------------------------------
> >> TECH SUPPORT POLICY
> >>
> >> I respond only to requests that contain a complete problem report. The
> >> easiest way to ensure that your report is complete is to include the
output
> >> of the JDE->Help->Submit Problem Report command in your request.
> >>
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> >>
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> >>
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> >>
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> >
>
>
>
> ------------------------------------------------------------
> TECH SUPPORT POLICY
>
> I respond only to requests that contain a complete problem report. The eas
iest
> way to ensure that your report is complete is to include the output of the
> JDE->Help->Submit Problem Report command in your request.
>
> To unsubscribe, e-mail: [EMAIL PROTECTED]
> For additional commands, e-mail: [EMAIL PROTECTED]
>
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>
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