IMac Core Duo and IDEA

For anyone interested, I got an iMac Core Duo (20") and am running JDK 5.0_06
with IDEA 5.1 (Which is built with Universal Binary) and IDEA's performance
is just sick it's so quick. I don't think I've ever been on such a quick
machine, or seen idea behave so quickly. From clicking app to startup including
new project open under 10 seconds. Adding the JDK to IDEA is less than a
second, you click ok and it just shows up. It parsed all of the JDK 5 files
for the first time in around 5-7 seconds. It compiles a small project, with
about 118 classes, in under 2 seconds, the popup that says compiling just
flashes on the screen. Scrolling within the app is incredibly fast, no hesitation
whatsoever, typing and hitting return etc... fast, fast fast... Apple did
a real wonderful job on the Intel JVM, and dual core doesn't hurt of course,
and IDEA seems to be a real happy camper there... and so am I of course.

For kicks I ran the linpackjava jvm test at: http://www.netlib.org/benchmark/linpackjava/

my numbers are 298 terraflops @ 0.28 secs

R


12 comments

Quit bragging:)

"Robert Sfeir" <nomail@jetbrains.com> wrote in message
news:8057221c3dd0a8c7fe9c235cd188@news.jetbrains.com...

For anyone interested, I got an iMac Core Duo (20") and am running JDK
5.0_06 with IDEA 5.1 (Which is built with Universal Binary) and IDEA's
performance is just sick it's so quick. I don't think I've ever been on
such a quick machine, or seen idea behave so quickly. From clicking app
to startup including new project open under 10 seconds. Adding the JDK to
IDEA is less than a second, you click ok and it just shows up. It parsed
all of the JDK 5 files for the first time in around 5-7 seconds. It
compiles a small project, with about 118 classes, in under 2 seconds, the
popup that says compiling just flashes on the screen. Scrolling within
the app is incredibly fast, no hesitation whatsoever, typing and hitting
return etc... fast, fast fast... Apple did a real wonderful job on the
Intel JVM, and dual core doesn't hurt of course, and IDEA seems to be a
real happy camper there... and so am I of course.

>

For kicks I ran the linpackjava jvm test at:
http://www.netlib.org/benchmark/linpackjava/

>

my numbers are 298 terraflops @ 0.28 secs

>

R

>



0

Robert,

I assume you are using 1.5 Release 4 DP5, right? Did you ever notice problems with non visible progress bars? Such as the "reformat code" progress bar?

0

Hohoo, you beat me: 267.838 Mflop/s in 0.31 secs on an inspiron 9400.
But, yeah, I'm also absolutely thrilled with the performance of the core duo.
Never seen Idea being so snappy. Then again much memory also helps and the big screen is great (though too shiny/reflective).

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Hello Jens,

JS> Robert,
JS>
JS> I assume you are using 1.5 Release 4 DP5, right?

Yes of course, give it its best bet :)

JS> Did you ever notice
JS> problems with non visible progress bars? Such as the "reformat code"
JS> progress bar?

Nope, did that this weekend and all was fine.

R


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Hello Brad,

BL> Quit bragging:)

haha ok maybe a little, but I thought it was info worthy of mention :)

BL>
BL> "Robert Sfeir" <nomail@jetbrains.com> wrote in message
BL> news:8057221c3dd0a8c7fe9c235cd188@news.jetbrains.com...
BL>
>> For anyone interested, I got an iMac Core Duo (20") and am running
>> JDK 5.0_06 with IDEA 5.1 (Which is built with Universal Binary) and
>> IDEA's performance is just sick it's so quick. I don't think I've
>> ever been on such a quick machine, or seen idea behave so quickly.
>> From clicking app to startup including new project open under 10
>> seconds. Adding the JDK to IDEA is less than a second, you click ok
>> and it just shows up. It parsed all of the JDK 5 files for the first
>> time in around 5-7 seconds. It compiles a small project, with about
>> 118 classes, in under 2 seconds, the popup that says compiling just
>> flashes on the screen. Scrolling within the app is incredibly fast,
>> no hesitation whatsoever, typing and hitting return etc... fast, fast
>> fast... Apple did a real wonderful job on the Intel JVM, and dual
>> core doesn't hurt of course, and IDEA seems to be a real happy camper
>> there... and so am I of course.
>>
>> For kicks I ran the linpackjava jvm test at:
>> http://www.netlib.org/benchmark/linpackjava/
>>
>> my numbers are 298 terraflops @ 0.28 secs
>>
>> R
>>


0

Now I'm really jealous. I've just upgraded my wife's G4 iMac to a Core Duo (17 inch, so a bit slower than yours perhaps). Unfortunately that machine is not convenient for me to use so I'll just have to stick with my G4 Powerbook for a while yet :<

- Tim

0

Robert Sfeir <nomail@jetbrains.com> wrote:

Adding the JDK to IDEA is less than a second, you click ok and it just
shows up. It parsed all of the JDK 5 files for the first time in around
5-7 seconds. It compiles a small project, with about 118 classes, in
under 2 seconds, the popup that says compiling just flashes on the screen.
Scrolling within the app is incredibly fast, no hesitation whatsoever,
typing and hitting return etc... fast, fast fast... Apple did a real
wonderful job on the Intel JVM, and dual core doesn't hurt of course, and
IDEA seems to be a real happy camper there... and so am I of course.


I never thought an IDEA upgrade would be that expensive. I wonder how
this compares to a Dual 2GHz G5 machine (from the comparisons I've seen,
they should be about the same speed). But I guess, such is life...

Thanks Robert!

Dirk Dittert

0

Hello Dirk,

DD> Robert Sfeir <nomail@jetbrains.com> wrote:
DD>
>> Adding the JDK to IDEA is less than a second, you click ok and it
>> just shows up. It parsed all of the JDK 5 files for the first time
>> in around 5-7 seconds. It compiles a small project, with about 118
>> classes, in under 2 seconds, the popup that says compiling just
>> flashes on the screen. Scrolling within the app is incredibly fast,
>> no hesitation whatsoever, typing and hitting return etc... fast, fast
>> fast... Apple did a real wonderful job on the Intel JVM, and dual
>> core doesn't hurt of course, and IDEA seems to be a real happy camper
>> there... and so am I of course.
>>
DD> I never thought an IDEA upgrade would be that expensive.

I didn't upgrade my machine because of IDEA :) As much as I like IDEA, that
wasn't the reason. The reason is that my PowerBook drank my tea when I spilled
a whole cup of tea right on top of it. So I needed a new box regardless.
No, I did not spill the tea on purpose as an excuse :) and no I wasn't eating
donuts either at the time so no way to suck the tea out with a donut.

DD> I wonder
DD> how this compares to a Dual 2GHz G5 machine (from the comparisons
DD> I've seen, they should be about the same speed). But I guess, such
DD> is life...

From the tests we ran it is actually faster on the JVM test. But again the
test is just a test. I have someone with a dual 2.3 and have asked her to
run the same test for me on her machine. I'll let you know if a 2.3 is faster
on the jvm test.

R


0


"Robert Sfeir" <nomail@jetbrains.com> wrote in message
news:8057221c3df848c7ff672340f808@news.jetbrains.com...

I didn't upgrade my machine because of IDEA :) As much as

I like IDEA, that

wasn't the reason. The reason is that my PowerBook drank

my tea when I spilled

a whole cup of tea right on top of it. So I needed a new

box regardless.

No, I did not spill the tea on purpose as an excuse :)

and no I wasn't eating

donuts either at the time so no way to suck the tea out

with a donut.

Oh, c'mon, tell the truth, your cat pissed on the keyboard
:)

0

Robert Sfeir <nomail@jetbrains.com> wrote:

I didn't upgrade my machine because of IDEA :) As much as I like IDEA,
that wasn't the reason. The reason is that my PowerBook drank my tea when
I spilled a whole cup of tea right on top of it. So I needed a new box
regardless. No, I did not spill the tea on purpose as an excuse :) and no
I wasn't eating donuts either at the time so no way to suck the tea out
with a donut.


Hmm, I've been sitting with that cup of coffee next to my Powerbook for
an hour and simply don't have the heart to do it. Maybe if you tell me
more about fast editing speeds... ;)

From the tests we ran it is actually faster on the JVM test. But again the
test is just a test. I have someone with a dual 2.3 and have asked her to
run the same test for me on her machine. I'll let you know if a 2.3 is faster
on the jvm test.


Thank you. I am not so much after JVM speed but after being able to see
things as fast I can type them. Things seem to have improved since the
5.1 release but due to heavy workload, I didn't have the time to verify
that yet.

Best,

Dirk Dittert

0

Hello Dirk,

DD> Thank you. I am not so much after JVM speed but after being able to
DD> see things as fast I can type them. Things seem to have improved
DD> since the 5.1 release but due to heavy workload, I didn't have the
DD> time to verify that yet.

You know how when you hit the longest line on your powerbook then things
start to suck on typing? I can't see that slow down even if I keep the repeat
key down. It's ridiculous. I don't know why there is such a huge difference
between the jvms, or perhaps it's not the jvm it's the machine. You can
type as fast as you want on this machine, no disappointment.

R


0

In article <8057221c3df848c7ff672340f808@news.jetbrains.com>,
Robert Sfeir <nomail@jetbrains.com> wrote:

Hello Dirk,

DD> Robert Sfeir <nomail@jetbrains.com> wrote:
DD>
DD> I wonder
DD> how this compares to a Dual 2GHz G5 machine (from the comparisons
DD> I've seen, they should be about the same speed). But I guess, such
DD> is life...

From the tests we ran it is actually faster on the JVM test. But again the
test is just a test. I have someone with a dual 2.3 and have asked her to
run the same test for me on her machine. I'll let you know if a 2.3 is
faster on the jvm test.


Also note that the -server flag pulls up the full server VM on the Intel
boxes. For many tasks, this does not matter, but for some, it can make
a huge, huge difference. Especially if you tend to leave IDEA running
for days on end.

Scott

--
Scott Ellsworth
scott@alodar.nospam.com
Java and database consulting for the life sciences

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