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I'm using the eclipse neon IDE and I put it on the path: /opt/eclipse/eclipse and i am using Ubuntu 16.04 and Java 8. The problem is that when I write in the eclipse editor, this is going too slow. For example, I just typed and in the editor it still does not end.
How can I solve it?
Thx!
Try Netbeans, or IntelliJ IDEA.
A quick browse over the Interwebs shows that quite a lot of people are complaining about Eclipse slowness. Some have every manner of trick and configuration change to help speed it up. OK, you can put yourself thru all that hassle if you want, or, you can just switch to something that already works fine out of the box.
I had Eclipse Oxygen for PHP running on a CentOS 7 VM with 2G allocated RAM. I admit, that's pretty low memory, but that's the way it has to be right now. Eclipse ran so slowly, I finally gave up and killed the process from the command line.
I installed the latest Netbeans 8.2, and it not only installed more cleanly (no Java error messages, and it put an icon on the desktop), it ran PERFECTLY without changing a thing!
I eventually changed a couple of parameters, but the point is, I didn't need to change a thing to get decent performance. Even on a low-ram system, it ran plenty fast enough.
Don't blame the hardware. Not everybody has the money to buy the latest and greatest and fastest machines available, and software developers should not expect it. With some exceptions, if your application can not run adequately on 2G of ram, you are doing something wrong.
The Eclipse developers are doing something terribly wrong.
I had faced a similar issue with eclipse oxygen.
After a some research over different forums I found the following solution.
Step 1 : Open eclipse.ini file. If you find difficulty in locating the file, see this question Where's the location of the eclipse.ini file?
Step 2 : In eclipse.ini search for below 2 variables
-Xms
-Xmx
Xms indicates minimum ram that should be allocated to eclipse.
Xmx indicates maximum ram that should be allocated to eclipse.
Step 3 :Increment both the values. You can set the value as per your choice. Below is my preference.
-Xms512m
-Xmx2048m
Here
m indicates megabytes, if you don't specify m it will consider bytes by default.
The easiest thing to do would be to re-install eclipse, and if that does not work you could try to download an older version of eclipse. It could also be slow because your computer is slow.
I tried to download Java on my laptop (which has windows 10) but i keep getting a 1603 error. My computer used to have windows 8.1 and it did not work back then either
I appreciate any advice to solve or work around this problem
I have had this problem. I was able to fix it thanks to a co-worker. The problem started happening after I installed HP Unified Functional Testing (UFT, aka QTP). Installing this product changes the Windows environment variables used by Java. He told me the following: "So change the names of JAVA_OPTIONS, IBM_JAVA_OPTIONS, JAVA_TOOL_OPTIONS to something else (both in system and user variables) and delete any Java folder(in Program Files (x86) or Program Files) which gets installed despite the error. Restart the system and then try installing Java."
Actually, all I did was rename the environment variables and run the installer. This worked.
My answer is not related to win 10, but might help someone who is having similar problem in windows 7 machine and not able to install jre 32 bit version.
the work around to this is once you downloaded the jre, copy the path "C:\Program Files (x86)\Java\jre1.8.0_121\bin\javaw.exe" and paste it under java runtime environment settings which is found -Java Control panel>java>view
I think you downloaded the wrong version. If your laptop support x64 bit software you should download Java 1.8 x64 version.
Here is the link.
https://www.java.com/en/download/manual.jsp
I had this problem for a month now. I tried everything on my windows 8, but I couldn't get the latest java on it. When I tried to install java on an empty computer, the 64 bit version did not go through (error 1603) and I realized the problem didn't come from an old java install and I install 32 bit. it worked on the new computer with windows 7 and on my computer running 8.1.
note: I had deleted all the java versions before going through with it.
To fix java 1603 error you have to follow few simple steps.
First of all remove all old java version.
Then remove some windows update file which might be reason of this
error. Like KB2918614 update.
After that download and Install latest version of java and activate
java in browser. Now everything will be fine you can test the java
version on java website...
For explained and easy solution to java 1603 error follow this link: http://protechguides.com/java-error-code-1603-solved/
I encountered this error on Windows 8.1 and when I checked with Oracle web site, they said that is is not yet resolved, and under investigation. They also showed a link for off-line installation as an alternative arrangement. However, upon investigation of my system, i found out that the available space in C drive was only about 20 MB or so. I cleared my system and provided enough space. When I tried with the extra space, I didn't encounter any error. May be, you could try with a better free space...
First you should close the browser because if any webpage will use Java, it will cause conflict. Then do custom installation, i.e. install in some other folder other than default folder and point environment variable to newly installed Java location. It will resolve your issue.
I've just found out that TeamCity runs on the 32-bit JVM on Windows, for some reason.
I'm seeing memory errors logged when checking out a large (not that large) Git repo and am already at the max heap size for the JVM. I know nothing about Java or the JVM, or TomCat.
How can I run TeamCity on a modern, 64-bit JVM? I sense its going to be a pain, else it would be the default.
We're a tiny team and if something doesn't have Apple levels of 'it just works' then we skip it.
We can live with this one project not be on the CI server, but it would be nice to know what's involved and weigh up the investment.
Any advice appreciated.
Edit
Okay so Markus pointed to this snippet (which I had read), but I can't see any information there explaining what to do.
Using 64 bit Java to Run TeamCity Server TeamCity can run under both
32 and 64 bit JVM. It is recommended to use 32 bit JVM unless you need
to dedicate more than 1.3Gb of memory to the TeamCity process.
If you choose to use x64 JVM please note that the memory usage is
almost doubled when switching from 32 to 64 bit JVM, so please make
sure you specify at least twice as much memory as for 32 bit JVM, see
Setting Up Memory settings for TeamCity Server.
If you run TeamCity as a service and switch to x64 bit, you will also
need to use x64 Tomcat executables, see more.
Did I miss something?
Edit 2
Ah, okay, buried in some paragraphs above that link is this:
"if you run as Windows service and want to upgrade JRE to 64 bit
version, you will need to replace \jre with appropriate
JRE"
So I guess I need to copy some files into the /jre folder?
The way I made it work (TeamCity 8, Windows server 2008 r2):
Install the 64-bit JRE on the target machine, now there are two ways to do this
A -> If you are using the Teamcity bundled JRE, replace the JRE folder ([TC Server folder]\JRE) with the JRE folder in the newly installed JRE x64 - You have to shut down the TC server service (along with all java.exe*32 services that might also use this JRE)
B -> Change the TeamCity Internal properties, to point to newly installed JRE x64 (see documentation for TC version 8, TC version 9 can be found here):
java.home=C\:\\<JRE x64 install folder>\\jre
java.ext.dirs=C\:\\<JRE x64 install folder>\\jre\\lib\\ext\;C\:\\Windows\\Sun\\Java\\lib\\ext
java.library.path=C\:\\<JRE x64 install folder>\\jre\\bin\;C\:\\Windows\\Sun\\Java\\bin\;C\:\\Windows\\system32\;C\:\\Windows\;C\:\\local\\Oracle\\clients\\112_64\\bin\;C\:\\local\\Oracle…
An alternative to point B would be to change Environment variable JAVA_HOME, it`s more simple, but it requires a Windows server restart after that
If you run the TC Server service now, it should run as a 64-bit Java process (chceck via PID in task manager) :
Don`t be alarmed if the server does not start up throwing an error :
Error: SQL error when doing: Connecting to MSSQL: I/O Error: SSO Failed: Native SSPI library not loaded. Check the java.library.path system property
Download JTDS - 1.3.1 (http://sourceforge.net/projects/jtds/files/jtds/1.3.1/) and install it
Take the ntlmauth.dll file from [JTDS-1.3.1 install folder]/x64/SSO folder and replace the one in [TC Server folder]\bin
The TC server should now run fine as 64 bit Java process
You can increase the memory allocation (as that is the whole point of the upgrade) now on the server as described here : https://confluence.jetbrains.com/display/TCD8/Installing+and+Configuring+the+TeamCity+Server#InstallingandConfiguringtheTeamCityServer-SettingUpMemorysettingsforTeamCityServer
The snippet from the updated question had a link in the original, pointing to the instructions on Java update for TeamCity server in TeamCity online doc.
Basically, the instructions vary based on the TeamCity distribution used and way of launching the server.
If your intent is to increase the memory for the TeamCity server, please make sure to read through the corresponding section on the same doc page.
Yet one more note: recent TeamCity versions perform Git fetch in a separate process and Git-related memory issues during fetch might require fine-tuning of the corresponding options.
"So I guess I need to copy some files into the /jre folder?"
No. You install a 64 bit JRE, and update the relevant setting to point at the 64-bit install's JRE.
Don't copy stuff from one JRE installation into another. You will break things!
when trying to start eclipse, i receive the message in the image.
when trying to start other instance of eclipse, i receive a message saying: "failed to create the java virtual machine".
How can i solve it?
try starting eclipse with -clean option
./eclipse -clean
If it still doesn't start check ".log" file for error. This file should be located in "workspace/.metadata" folder. Publish error from log to your question.
Also check Java version and JAVA_HOME and PATH on your system are set accordingly. Java version should be at least 1.5
The message "failed to create the java virtual machine" usually implies the failure to allocate enough memory for starting the JVM. This is often due to unavailability of sufficient contiguous free memory in RAM, or incorrect min and max heap sizes.
From the screenshot, it appears that the problem might not be with the min and max heap sizes, so you might want to take a look at the amount of free memory available when starting Eclipse (although that is no indicator of whether all free memory is contiguous).
To begin fixing this issue, you could start Eclipse from the command-line and observe the error messages reported if any. Then you could proceed to calibrate the JVM settings that are better suited to your installation (heavy plugins will require more memory), or change to another JVM.
See also
Why does Eclipse crash with Xmx, XX:MaxPermSize above certain values?
What are the best JVM settings for Eclipse?
Go to C:\Program Files\Java\jre6\bin\client\ and make sure that jvm.dll exists there.
Either way, you might want to try re-installing or updating Java on your machine.
To modify file eclipse/eclipse.ini, try a smaller number in attribute -Xmx, and restart.
Check your version of Java. Oracle accidentally broke Eclipse when they updated the vendor field from 'Sun Microsystems' to 'Oracle'.
http://insideria.com/2010/08/oracle-breaks-eclipse-and-flex.html
Oracle was nice enough to change it back and release an update, which fixes Eclipse.
I had a similar problem when I installed JDK 64-bit version with an install of Eclipse 32-bit (didn't realize it until much searching and searching). Simple solution, but a shot none-the-less.
I am using eclipse 3.5 (cocoa build) on Macos 10.5 with Java 1.5.0.19.
I just have 3 java files opened
1 files ~ 2000 lines
the other 2 are ~ 700 lines.
But when I switch from 1 file tab to another, eclipse takes a long time (~ 20 seconds) to switch to another tab.
I have already change the eclipse.ini to
more eclipse.ini
-startup
../../../plugins/org.eclipse.equinox.launcher_1.0.200.v20090520.jar
--launcher.library
../../../plugins/org.eclipse.equinox.launcher.cocoa.macosx_1.0.0.v20090519
-product
org.eclipse.epp.package.jee.product
-showsplash
org.eclipse.platform
--launcher.XXMaxPermSize
256m
-vmargs
-Dosgi.requiredJavaVersion=1.5
-XstartOnFirstThread
-Dorg.eclipse.swt.internal.carbon.smallFonts
-XX:MaxPermSize=512m
-Xms128m
-Xmx1024m
-Xdock:icon=../Resources/Eclipse.icns
-XstartOnFirstThread
-Dorg.eclipse.swt.internal.carbon.smallFonts
Is there any way to make eclipse 3.5 more speedy?
Thank you.
I switched this line in the eclipse.ini file (found inside the eclipse application package):
-Dosgi.requiredJavaVersion=1.5
to
-Dosgi.requiredJavaVersion=1.6
and tab switching was speedy again.
Go with the 32-bit Cocoa release. The 64-bit won't help IMHO. It really works great on my 2.4 GHz MBP. I usually have about 30 files open, some fairly large, never experienced what you describe.
Try to get a new plain-vanilla 32-bit Cocoa distro, don't modify anything and check if there's an issue. It could be a rogue plugin, too. Do you have any installed?
Check you heap status. Open the Eclipse preferences, in the very first preferences page there's a "show heap status" option. You might be running low on memory. Check the swap status of your machine using the activity monitor - if it swaps a lot I'd recommend shutting down other applications. In general, I recommend 4 GB RAM for development machines.
I know this is kind of late to the game, but I found that changing the permissions to ~workspace.metadata.plugins\org.eclipse.e4.workbench to deny myself access stopped the slow-down issue.
Seems that Eclipse (4.2.0) writes out a corrupt settings file every so often, and when it's loaded in at startup again it slows everything down as it's constantly throwing errors internally. Changing the security on that directory so that Eclipse can't write to it is a kind of "fix"! It does mean that each time Eclipse is started it's back to its default settings, but if speed is more important, I think it's a worthwhile sacrifice.
There are now patches for Juno to begin addressing this issue. See comment #212 on bug 385272 for information on how to update your installation. If you wait a little longer you should find these fixes in the Kepler milestone on 12/21/2012.
(I believe the other suggestions posted here, e.g. increasing memory or tweeking various startup params or prefs might have some positive effect on performance, but the underlying problem is threads run amok as described in the bug report.)
This might be the bug that was referred to. https://bugs.eclipse.org/bugs/show_bug.cgi?id=282229
switching to 1.6 really helps.
This is the link to locate eclipse.ini file for mac
http://wiki.eclipse.org/Eclipse.ini
This eclipse bug report is spot-on with the behavior you describe. (I had the same experience using a new Juno installation on a beefy XP machine.)
https://bugs.eclipse.org/bugs/show_bug.cgi?id=385272
The most useful part of the bug report was in comment 29, which suggests creating a new workspace. The easiest way to do this is:
1) exit eclipse
2) rename .../path/to/workspace/.metadata/.plugins/org.eclipse.e4.workbench/workbench.xmi
(e.g., append ".old")
3) start eclipse
I believe changing -Dosgi.requiredJavaVersion=1.5 to 1.6 may help only incidentally, if at all.
Increase the memory limits in eclipse.ini seems to have fixed this for me - not sure if it will stay fixed though
FROM:
-vmargs
-Xms40m
-Xmx512m
TO
-vmargs
-XX:MaxPermSize=512m
-Xms256m
-Xmx784m
ALSO - if you came from aptana3 and imported your project - You need to do this
Click Project Properties
Go to "Builders"
Make sure there are no "Missing Builders" If there are, uncheck them - I had two left over from aptana when I imported my project (com.aptana.ide.core.unifiedBuilder AND com.aptana.editor.php.aptanaPhpBuilder)
---- UPDATE ----
It was fixed - but not for the reasons I thought. My SVN was no longer recognized by eclipse. As soon as I hit 'share with team' and reconnected it the tab-switching issues reappeared. I'm going to try and figure out if It's an svnKit vs JavaHL problem - I'm not sure which connector I picked when I setup eclipse this time.
If you want confirm this is your issue trying disconnecting from the SVN (Team->disconnect) and restarting eclipse
This is an known issue.
Since you are using JDK1.5, you can try the Carbon variant.
I experience the same issue using OS X 10.5.7 and Eclipse 3.5.2 on a fairly low end machine (early 2006 iMac with 1.5GB). Right after I start my machine however, everything is really snappy. I can even launch JBoss AS and there is still no slow-down. I monitor "Swap used" in activity monitor, and it stays at 0 bytes swap used.
Then, I launch something else, like iTunes and mail or switching to another account.
Things become slow then, which is expected, and I see "Swap used" increasing. Eclipse slows down to a crawl, and working with it is near to impossible.
Then I logout the other account, close down all other apps that I opened, so the state of my machine is basically the same again as when it was still fast. BUT... it stays dog slow! Even though I closed all the other apps, "Swap used" in activity monitor only decreases a little (from ~1.2GB to ~700MB). Just switching tabs between 2 very simple Java files takes up to 20 seconds, meanwhile I see in activity monitor that the CPU usage goes up to a solid 100%.
There definitely is something strange going on here. This does not seem like normal behavior. It is as-if Mac OS X goes into a 'slow mode' when I demand too much resources from it, but when the resources are there again it fails to recover.
Highly annoying!
If I reset the machine and open the exact same working set again (Eclipse with the same 2 files open, JBoss AS started in debug mode, Safari with 1 window) everything is really fast again.
I can now more or less confirm that the problem is really with Eclipse 3.5.
I've run Eclipse on a much more powerful Mac, a 27" core I7, 2.93Ghz with 8GB ram and a SSD running OS X 10.6.4. Initially this was extremely smooth and snappy, but after an up time of a dozen hours or so, Eclipse suddenly began to slow-down again. I had very little to almost nothing running in the background. Just Eclipse (32 bits, given it 1.5GB memory), JBoss AS and Safari.
A simple tab switch would take a few seconds and meanwhile I noticed the CPU load on one core going to 100%. The same happened with switching perspectives and various other operations.
When I restarted only Eclipse, everything was completely fast again. This happened a couple of times.
For me the issue was the SVNKit connection integration to the Juno version of Eclipse. I am doing Android Development using the Juno version of Eclipse and when I turned on the SVNKit Team Integration I got the following issues described:
Very slow switching between code files in the Eclipse IDE.
Extra large gap and space in the tool bar between the print and Android SDK Manager icons.
For me... I turned off the following settings under Window->Preferences->Team->SVN under the View Settings... there was a setting for "Show synchronize info incrementally"... I turned that off and the switching between files improved.... but there is still a delay versus NOT having SVN connected.
Without SVN connected... the switching between files is normal.
I had Java 1.6 in the Eclipse.ini
I did not change the settings for memory.
TL;DR for the bug thread:
http://wiki.eclipse.org/Platform_UI/Juno_Performance_Investigation#Resolution
Worked for me.
The original problem of slow switching between tabs has reappeared in Eclipse Neon (4.6.2 only?) using the Dark theme.
Solution: disable themed scrollbars in e4-dark_win.css (bottom of file):
StyledText {
swt-scrollbar-themed: false;
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