Terrible GUI responiveness on Linux

Hello,

I've been trying to use IntelliJ on Linux Fedora (Core 2) lately, but the
responsiveness on
GUI updates, both in editor and on dialoges, is veeery slow. Is there anyway
I can
speed up this? Its so bad that it drastically reduces my productivity
compared to using
intelliJ on windows, which is very sad, since Linux is so much quicker as a
compiling
platform than Windows is (50% quicker to my benchmarks on ctrl-F9).

Any plan from the IntelliJ team to speed up the responsiveness?

PS: I even noticed that X went "bananas" and took up 60-70% of the CPU on
the machine,
untill i exited idea...

Best reards,
Helge Fredriksen


5 comments

Hi Helge,

I'm sorry to hear this, but I can tell you Idea is far most quickly compared to other IDE I tested (Eclipse, Netbeans). I'm afraid you have an other problem and this needs some investigations.
Please tell your window manager and try to tell what job eats your CPU. Perhaps you should increase your logging level for idea. This depends which version you are using.

Best regards
Thomas

0

Which look and feel did you choose?

I find that choosing one of the Alloy L&Fs makes it very slow.

The default IntelliJ L&F is better, at least on Windows.

0

I'm aware that X is slower than Windows, so some loss in
responsiveness was expected, but not as drastic as I experience.

How do I increase the logging level? I'm using 4.5.

Anyone having tips on how to speed up X in general on Linux Fedora?

Best regards,
Helge Fredriksen

"Thomas Hartwig" <t.hartwig@crapoud.com> wrote in message
news:2357368.1126260887526.JavaMail.javamailuser@localhost...

Hi Helge,

>

I'm sorry to hear this, but I can tell you Idea is far most quickly

compared to other IDE I tested (Eclipse, Netbeans). I'm afraid you have an
other problem and this needs some investigations.

Please tell your window manager and try to tell what job eats your CPU.

Perhaps you should increase your logging level for idea. This depends which
version you are using.
>

Best regards
Thomas



0

I see the same thing on Fedora Core 4, I'm running a multihead machine with an nvidia card driving two monitors and an old vga card driving a third under xinerama. Just typing and scrolling around in the editor causes a large amount of X cpu usage to the point where the response in Intellij is almost unusable (3 ghz cpu, 1G memory btw). The look and feel you select is definitely a factor, the alloy ones are unusable, I'm using metal and it is marginal. I don't know if this is a problem with Intellij, Java or nvidia's drivers maybe it's a combination of the three but it is only noticable when using intellij. If i were to guess i'd say it is related to java 2d or font rendering.

0

This continues to be a problem in 5.1.2, using the idea 4.5 theme on a dual core 3+ ghz machine. just moving the cursor up and down with the arrow keys causes X to eat about 30% cpu. Will this be addressed in 6.0?

0

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