Idea slowing to a crawl

Intellij Idea 9 (latest version) seems to be getting slower and
slower.

I type a few words, but they don't show on the screen till a few
seconds later.

It is almost unusable now.  I tried fiddling with various memory
configurations to no avail. 


It does not appear to be related to garbage collection.

I have Windows 7 64-bit which I suspect is at the heart of the problem
since I used Vista 32-bit and IntelliJ 8 without such problems
previously.

I have both 32-bit and 64-bit JDK 1.6.0_17 installed.

Any ideas what to look for?

--
Roedy Green Canadian Mind Products
http://mindprod.com
There is no end to what can be accomplished if you don�t care who gets the credit.
~ Art Rennison

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to note: the promise of improved UI performance was #1 in the v9's introduction pitch:

http://www.jetbrains.com/idea/whatsnew/index.html

Just how come it turned out so badly broken with so many people complaining about it in different ways?

Just tried Eclipse 3.5.1 with the same project; unfortunately it still smells bad and is still slower than Idea... So out of the evils, Idea still comes on top although the gap is obviously closing....

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It's not that bad for all of us.
9.x is performing very well for me. But that depends a lot on what you do with it. In 8.x there have been quite a few (major) performance issues with certain framework plugins. Those
issues have been fixed with the minor releases of 8.x.
I hope it'll be the same for Maia. And if you guys submit the profiler snapshots Jetbrains will hopefullydo this soon.

Wallaby

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Hello Roedy,

Please attach a CPU snapshot as described in http://jetbrains.net/devnet/docs/DOC-192

Intellij Idea 9 (latest version) seems to be getting slower and
slower.

I type a few words, but they don't show on the screen till a few
seconds later.

It is almost unusable now.  I tried fiddling with various memory
configurations to no avail.

It does not appear to be related to garbage collection.

I have Windows 7 64-bit which I suspect is at the heart of the problem
since I used Vista 32-bit and IntelliJ 8 without such problems
previously.

I have both 32-bit and 64-bit JDK 1.6.0_17 installed.

Any ideas what to look for?

--
Dmitry Jemerov
Development Lead
JetBrains, Inc.
http://www.jetbrains.com/
"Develop with Pleasure!"


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I once had a situation when Idea (one of the EAP builds) was behaving similar to what you describe, freezing almost after each key stroke, but I eventually traced that to the horrendous anti-virus software activity installed at one of my client's site. The anti-virus scans were triggered upon each file edit, or something like that.  I had to talk to their IT people and get permission to re-configure the antivirus scan settings. After that, IntelliJ worked just fine.  I find my IDEA working very, very fast - with several sizable projects - both an a Mac and Windows (32-bit XP, haven't tried it on Windows 7.)

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I am running Intellij on Windows 7 x64 but with a 32bit jdk and I guess I am fortunate enough for the performance to be just great on my system. Things you can look for are if your anti virus is kicking in and scanning Intellij specific files etc. I dont run an AV other than Microsoft Security Essentials and I have the real time scanning turned off most of the time.

Also I am assuming your hardware specs are more than adequate since you were running IJ 8 after all. You can also try changing the intellij startup options for its VM to see if it helps. I changed my xmx and xmx arguments to both be 512 mb for example.

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On Mon, 11 Jan 2010 17:35:59 MSK, constv   <no_reply@jetbrains.com>
wrote, quoted or indirectly quoted someone who said :

I once had a situation when Idea (one of the EAP builds) was behaving similar to what you describe, freezing almost after each key stroke, but I eventually traced that to the horrendous anti-virus software activity installed at one of my client's site. The anti-virus scans were triggered upon each file edit, or something like that.  I had to talk to their IT people and get permission to re-configure the antivirus scan settings. After that, IntelliJ worked just fine.  I find my IDEA working very, very fast - with several sizable projects - both an a Mac and Windows (32-bit XP, haven't tried it on Windows 7.)


There is only Windows Defender for virus checks.  I don't have it
configured to examine on file save. However, it is possible it was
running a scan in "stealth" mode while I was trying to use IntelliJ. I
could not see any application software running in the background,
though there was a Windows 7 process, whose name I have seen forgotten
that was consuming significant resources.  I have indexing turned off.

Whatever it was seemed to slow IntelliJ, but did not affect other
apps.

IntelliJ seems to be working reasonably again.  I installed the new
JDK 1.6.0_18 both 32 and 64 bit.  Perhaps in the process Intellij got
knocked sensible again.  Could it be that somehow IntelliJ was using
JDK 1.6_0_17 rather than its own internal JVM?
--
Roedy Green Canadian Mind Products
http://mindprod.com
I decry the current tendency to seek patents on algorithms. There are better ways to earn a living than to prevent other people from making use of one�s contributions to computer science.
~ Donald Ervin Knuth (born: 1938-01-10 age: 72)

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