Community
Participate
Working Groups
Created attachment 234082 [details] Eclipse Configuration One of the threads of idle eclipse 4.3 process performs writes to disk every second which amounts in roughly 10MB written to disk every minute. Steps to reproduce: 1.Get 4.3 Kepler directly from the website. Do not install anything. Just open it. 2.Leave eclipse idle 3.watch io counters for eclipse Though I have to say that similar io activity have been taking place on the Eclipse 3.8 that by default ships with the Ubuntu 12.04
Created attachment 234144 [details] Error detected by Java
So, I assume you mean that is is this log that is repeatedly written to disk. From the log, it appears related to webkit and possibly openjdk-i386, so will move to swt. It would help narrow the debugging if you (originator) could see if you got the same results with a different VM and also a "stock" Eclipse downloaded from Eclipse.
(In reply to comment #2) > So, I assume you mean that is is this log that is repeatedly written to > disk. > > From the log, it appears related to webkit and possibly openjdk-i386, so > will move to swt. > > It would help narrow the debugging if you (originator) could see if you got > the same results with a different VM and also a "stock" Eclipse downloaded > from Eclipse. Oh, upon re-reading, I see you did try stock Eclipse ... so, it'd be helpful to try other VMs.
(In reply to comment #0) > One of the threads of idle eclipse 4.3 process performs writes to disk every > second which amounts in roughly 10MB written to disk every minute. Since you know it's 10 MB I assume you know which files are written. Please indicate them here. > 1.Get 4.3 Kepler directly from the website. Do not install anything. Just open > it. Did you start with a new workspace or an existing one? (In reply to comment #1) > Created attachment 234144 [details] > Error detected by Java This seems unrelated and is already tracked by bug 400626.
I would be very happy to get some more meaningful reports if some guidelines are given. My tools so far include: iotop, lsof, ps and I have experimented with memory dumps but still did not managed to pin down that particular thread that is responsible for extensive io. What I know for sure is that it happens with a clean Ubnutu 12.04 with eclipse 3.8 from Ubuntu repositories or a Kepler version with nothing else installed on it. Yes, you can find in the report that I used Aptana, PyDev and ViPlugin but the issue happens regardless these are installed or not
(In reply to comment #5) > I would be very happy to get some more meaningful reports if some guidelines > are given. > > My tools so far include: iotop, lsof, ps and I have experimented with memory > dumps but still did not managed to pin down that particular thread that is > responsible for extensive io. You might want to try with fio or xfs_io. Another approach would be to remote debug your workspace and put breakpoints at the usual file write methods. Did you start with a new workspace or an existing one?
Yes, I did try to change my workspace directory but the issue persists.
I ran it on another VM: maciej@jadwiga:~$ java -version java version "1.7.0_25" OpenJDK Runtime Environment (IcedTea 2.3.10) (7u25-2.3.10-1ubuntu0.12.04.2) OpenJDK Server VM (build 23.7-b01, mixed mode) maciej@jadwiga:~$ javac -version javac 1.7.0_25 same results.
What I managed to establish is that this issue is not being caused by anything near Eclipse. Interestingly is not caused by hardware either. Now I have Debian Wheezy and W7 installed on the same drive and they do not show any signs of increased disk io. Ubuntu 12.04 did. On Ubuntu 12.04 my overall disk throughput on U12.04 was 1/MBs for writes. On Debian I am getting a ~80MB/s. Not sure what was it caused by but it definitely was not Eclipse. I am happy I can use Eclipse again without constantly looking at my HDD LED. Thanks for help and suggestions.
