Hi Chuck,
You did not see my earlier response where I came to the same conclusion about
the types after looking at some other sites including a wiki. Yes there was
some
confusion but now I am clear that it is compiler dependant as I said earlier.
Thanks,
-Tony
> From: Tony Anecito [mailto:adanec...@yahoo.com]
> Subject: Re: [OT] IIS7/isapi/tomcat performance
> On page 4 of the following port guide:
> http://public.dhe.ibm.com/software/dw/jdk/64bitporting/64BitJavaPortingGuide.pdf
> It states:For Windows, on 32-bit systems, inte
and I said so in a previous message.
Regards,
-Tony
- Original Message
From: Christopher Schultz
To: Tomcat Users List
Sent: Wed, March 2, 2011 7:12:43 PM
Subject: Re: [OT] IIS7/isapi/tomcat performance
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Tony,
On 3/1/2011 6:27 PM,
vious message.
Regards,
-Tony
- Original Message
From: Christopher Schultz
To: Tomcat Users List
Sent: Wed, March 2, 2011 7:12:43 PM
Subject: Re: [OT] IIS7/isapi/tomcat performance
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Tony,
On 3/1/2011 6:27 PM, Tony Anecito wrote:
> I
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Chuck,
On 3/1/2011 6:09 PM, Caldarale, Charles R wrote:
>> From: Christopher Schultz [mailto:ch...@christopherschultz.net]
>> Subject: Re: [OT] IIS7/isapi/tomcat performance
>
>> I don't understand why communicating a 64-b
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Tony,
On 3/1/2011 6:27 PM, Tony Anecito wrote:
> I believe the effect of compression is relative. In other words for a big
> program with lots of 64-bit pointers and 64-bit longs it is helps but for
> small
> programs it does not.
A long in Java i
> From: Christopher Schultz [mailto:ch...@christopherschultz.net]
> Subject: Re: [OT] IIS7/isapi/tomcat performance
> The question I have is how does the bus controller know
> that there are multiple 32-bit values coming down the line,
> and that it can send them simultaneously d
ry to not get emotional about it but I do miss my 8080 and Z80.
-Tony
- Original Message
From: "Caldarale, Charles R"
To: Tomcat Users List
Sent: Tue, March 1, 2011 4:09:10 PM
Subject: RE: [OT] IIS7/isapi/tomcat performance
> From: Christopher Schultz [mailto:ch...@chri
From: Christopher Schultz
To: Tomcat Users List
Sent: Tue, March 1, 2011 3:00:53 PM
Subject: Re: [OT] IIS7/isapi/tomcat performance
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Tony,
On 3/1/2011 4:19 PM, Tony Anecito wrote:
> I guess you have not read my last email yet. I think of it
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Chuck,
On 3/1/2011 5:42 PM, Caldarale, Charles R wrote:
>> From: Christopher Schultz [mailto:ch...@christopherschultz.net]
>> Subject: Re: [OT] IIS7/isapi/tomcat performance
>
>> Are you saying that a 32-bit JVM runnin
> From: Christopher Schultz [mailto:ch...@christopherschultz.net]
> Subject: Re: [OT] IIS7/isapi/tomcat performance
> I don't understand why communicating a 64-bit value over a
> 64-bit bus would take longer than communicating a 32-bit
> value over a 64-bit bus:
Because
> From: Christopher Schultz [mailto:ch...@christopherschultz.net]
> Subject: Re: [OT] IIS7/isapi/tomcat performance
> Are you saying that a 32-bit JVM running on a 64-bit machine
> somehow utilizes the 64-bit bus? Malarkey.
I wouldn't bet on that. Intel goes to great pains
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Tony,
On 3/1/2011 4:19 PM, Tony Anecito wrote:
> I guess you have not read my last email yet. I think of it as putting two
> 32-bit pieces of info on a 64-bit data bus whereas for two 64-bit pieces of
> information it takes two fetches or twice as
Hi Chris,
I guess you have not read my last email yet. I think of it as putting two
32-bit pieces of info on a 64-bit data bus whereas for two 64-bit pieces of
information it takes two fetches or twice as long on the same hardware.
Depending upon the number of bytes for each data type for 3
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Tony,
On 3/1/2011 3:24 PM, Tony Anecito wrote:
> Also, I have not programmed in assembly language or in hexadecimal for some
> time but I would hope that for a 32-bit java process running on a 64-bit
> processor I would fetch a 32-bit pointer and m
on how much worse things get is based upon how many pointers and
longs are used for 64-bit java that are used.
Regards,
-Tony
- Original Message
From: Tony Anecito
To: Tomcat Users List
Sent: Tue, March 1, 2011 12:44:37 PM
Subject: Re: [OT] IIS7/isapi/tomcat performance
Hi Chris
the keywords: java 64-bit vs 32-bit performance
You will find alot of discussion about this.
Regards,
-Tony
- Original Message
From: Christopher Schultz
To: Tomcat Users List
Sent: Tue, March 1, 2011 8:29:11 AM
Subject: Re: [OT] IIS7/isapi/tomcat performance
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Tony,
On 2/28/2011 2:57 PM, Tony Anecito wrote:
> Since the memory pointers are larger you may need to increase your heap size
> but
> you can compress the address pointers.
+1
> Also, if you use JNI and it is 32-bit then you will have unexpected
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