Firefox 4 slowes down after some time - possibly memory leak related

After couple minutes of intensive Firefox 4 usage (multiple tabs opened and closed, however no more than 15 tabs open simultanously) browser becomes '''unresponsive''' and periodically '''generates high cpu load''' (100% of one of two cores for about 4 seconds), '''memory consumption''' becomes around 450MB.

It would be helpful if Mozilla could provide a memory profiling tool that would help us civilians track down memory problems either in the core products or in extensions. The suggestions to create new profiles, re-add extensions, and do A/B (C/D/E) testing along the way, while accurate, aren't practical when we discover that FF 4 on Win 7 is using north of 1GB of memory.

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Why does Firefox performance slow down after starting Jack server?

Hello,
I started configuring my audio on my system. So, I want to have jack working (not jack2, to work with wineasio) with best sound quality with all sound routed through jack. When i start jack server with this command and settings:
killall jackd;killall pulseaudio;jackd -R -t 1000 -d alsa -P hw:0,0 -r 48000 -n2 -D
Firefox slows down, opens new pages slow and the scroll down is very very slow. I had this issue with other distros too. I suspect that it has to do with realtime ( which i need for my audio related apps like traktor through wine, ardour, ableton through wine etc) without being sure about it. Any idea why this is happening?

zabrielza wrote:I had this issue with other distros too.
This smells like hardware problem. Do this:
1. Kill pulseaudio, jack, and make sure they are killed
2. Make sure you do not renice anything or apply other such tweaks
3. Run jackd -d alsa
4. Use your system
5. If unsatisfactory, try jackd -d alsa -p 1024 -n 3
6. Use your system
Jack runs with realtime priority by default (no flag required), and we still use the audio group to provide that privilege. I also do not advocate the realtime kernel, but you may try it. Jack not functioning well (i.e. hampering other tasks significantly) on a standard kernel is cause for concern.
You can read/grep your dmesg and systemd journal for suspicious messages. You may try running real-time audio tasks in another operating system with your hardware, and upon success may proceed to debug the problem on Linux, possibly with the help of the alsa developers.
Or better yet, grab a supported semi-pro external audio device if jack is important for you. However, this may not help if the problem is somewhere deeper, e.g. at the hardware interrupt level.
Last edited by schivmeister (2015-04-30 18:21:56)

Startup slow down after some restarts

I have optimize boot using windows performance toolkit and time was 20 sek but after some restart it slow and goes 1 miN.
My laptop is dell n5010. Earlier I have installed iolo system mechanic and thi slow startup. I uninstalled but nothing

Here is the forum for you

MBP keeps slowing down after some uptime

I bought my MBP less than a month ago, and after about two days of uptime it starts to slow down dramatically. Apps become unresponsive and/or respond too slowly and performance as a whole is very bad.
I'm running Lion on the 13'' Core i5 with 4 gigs of RAM. Does anyone know what could be causing this? Friends of mine who have older MBPs get great performance even after much longer uptimes (like a week on end).

I bought my MBP less than a month ago, and after about two days of uptime it starts to slow down dramatically. Apps become unresponsive and/or respond too slowly and performance as a whole is very bad.
I'm running Lion on the 13'' Core i5 with 4 gigs of RAM. Does anyone know what could be causing this? Friends of mine who have older MBPs get great performance even after much longer uptimes (like a week on end).

Safari keep shutting down after some time browsing.-

Hello, I would like to knowif this is happenning to more people, after some random time of browsing Safari closes with a memory dump window and asking me if it can report the problem.
This has happened 6 times in less than two hours and I have tried restarting the laptop, deleting cookies and resetting Safari, no success.
This is annoying because this is the first time this happens and I'm using my MacBook for more than 3 weeks now.
Thank you guys if you share ideas on this!

after some random time of browsing Safari closes with a memory dump window and asking me if it can report the problem.
That's not a memory dump, it's a crash report. You need to post that crash report before we can determine the problem.
Mulder

Oracle 10G Db Starts-up After Server Reboot, BUT Goes DOWN After Some Time

Hi All,
I am really puzzled over this one. I have couple of servers running DB on them and I have used scripts to auto-enable them when server(s) reboot.
But there is one server where I see this funny behavior.
The DB comes-up after server reboot.
I can verify that in the startup logs and some more logs that I created.
I can see that LISTENER is able to communicate also.
But after a while, the DB shuts-down....!!
I have checked all the places I could. I have also tried to see the difference between this server and others (I did not install this one), but can not see any difference.
Is there anyway to find out (log) what is shutting down the DB??
Any help will be much appreciated as I am at my wits end.
Following is snap-shot from my logs:
Fri Mar 16 20:42:29 EDT 2007
Running dbstart.
Done with starting all, let's check status...
Fri Mar 16 20:42:42 EDT 2007
LSNRCTL for Solaris: Version 10.2.0.1.0 - Production on 16-MAR-2007 20:42:42
Copyright (c) 1991, 2005, Oracle. All rights reserved.
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC1)))
STATUS of the LISTENER
Alias LISTENER
Version TNSLSNR for Solaris: Version 10.2.0.1.0 - Production
Start Date 16-MAR-2007 00:46:56
Uptime 0 days 19 hr. 55 min. 46 sec
Trace Level off
Security ON: Local OS Authentication
SNMP OFF
Listener Parameter File /oracle/product/10.2.0/Db_1/network/admin/listener.ora
Listener Log File /oracle/product/10.2.0/Db_1/network/log/listener.log
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC1)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=10.103.253.50)(PORT=1521)))
Services Summary...
Service "orcl" has 2 instance(s).
Instance "orcl", status UNKNOWN, has 1 handler(s) for this service...
Instance "orcl", status READY, has 1 handler(s) for this service...
Service "orclXDB" has 1 instance(s).
Instance "orcl", status READY, has 1 handler(s) for this service...
Service "orcl_XPT" has 1 instance(s).
Instance "orcl", status READY, has 1 handler(s) for this service...
The command completed successfully
Current Status:
# date
Fri Mar 16 21:30:40 EDT 2007
# su - oracle -c "lsnrctl status"
Sun Microsystems Inc. SunOS 5.10 Generic January 2005
LSNRCTL for Solaris: Version 10.2.0.1.0 - Production on 16-MAR-2007 21:30:53
Copyright (c) 1991, 2005, Oracle. All rights reserved.
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC1)))
TNS-12541: TNS:no listener
TNS-12560: TNS:protocol adapter error
TNS-00511: No listener
Solaris Error: 146: Connection refused
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=10.103.253.50)(PORT=1521)))
TNS-12541: TNS:no listener
TNS-12560: TNS:protocol adapter error
TNS-00511: No listener
Solaris Error: 146: Connection refused

I was just looking at that.. Thanks for the tip.
Following is what I see. But not sure what does it tell me?? Please help......
From alert_orcl.log:
<snip>
db_recovery_file_dest_size of 2048 MB is 0.00% used. This is a
user-specified limit on the amount of space that will be used by this
database for recovery-related files, and does not reflect the amount of
space available in the underlying filesystem or ASM diskgroup.
Fri Mar 16 20:42:41 2007
Errors in file /oracle/product/10.2.0/Db_1/admin/orcl/udump/orcl_ora_7700.trc:
ORA-00604: error occurred at recursive SQL level 1
ORA-12663: Services required by client not available on the server
ORA-36961: Oracle OLAP is not available.
ORA-06512: at "SYS.OLAPIHISTORYRETENTION", line 1
ORA-06512: at line 15
Fri Mar 16 20:42:42 2007
Completed: ALTER DATABASE OPEN
From /oracle/product/10.2.0/Db_1/admin/orcl/udump/orcl_ora_7700.trc
# cat /oracle/product/10.2.0/Db_1/admin/orcl/udump/orcl_ora_7700.trc
/oracle/product/10.2.0/Db_1/admin/orcl/udump/orcl_ora_7700.trc
Oracle Database 10g Release 10.2.0.1.0 - 64bit Production
ORACLE_HOME = /oracle/product/10.2.0/Db_1
System name: SunOS
Node name: gcars0j6
Release: 5.10
Version: Generic_118833-24
Machine: sun4u
Instance name: orcl
Redo thread mounted by this instance: 1
Oracle process number: 15
Unix process pid: 7700, image: oracle@gcars0j6 (TNS V1-V3)
*** SERVICE NAME:() 2007-03-16 20:42:37.548
*** SESSION ID:(159.3) 2007-03-16 20:42:37.548
Thread 1 checkpoint: logseq 255, block 2, scn 8602014
cache-low rba: logseq 255, block 3
on-disk rba: logseq 255, block 767, scn 8602399
start recovery at logseq 255, block 3, scn 0
----- Redo read statistics for thread 1 -----
Read rate (ASYNC): 382Kb in 0.16s => 2.33 Mb/sec
Total physical reads: 4096Kb
Longest record: 3Kb, moves: 0/1066 (0%)
Change moves: 1/8 (12%), moved: 0Mb
Longest LWN: 308Kb, moves: 0/29 (0%), moved: 0Mb
Last redo scn: 0x0000.0083431e (8602398)
----- Recovery Hash Table Statistics ---------
Hash table buckets = 32768
Longest hash chain = 1
Average hash chain = 149/149 = 1.0
Max compares per lookup = 1
Avg compares per lookup = 1925/2083 = 0.9
*** 2007-03-16 20:42:37.702
KCRA: start recovery claims for 149 data blocks
*** 2007-03-16 20:42:37.705
KCRA: blocks processed = 149/149, claimed = 149, eliminated = 0
*** 2007-03-16 20:42:37.706
Recovery of Online Redo Log: Thread 1 Group 2 Seq 255 Reading mem 0
----- Recovery Hash Table Statistics ---------
Hash table buckets = 32768
Longest hash chain = 1
Average hash chain = 149/149 = 1.0
Max compares per lookup = 1
Avg compares per lookup = 2054/2074 = 1.0
Error in executing triggers on database startup
*** 2007-03-16 20:42:41.963
ksedmp: internal or fatal error
ORA-00604: error occurred at recursive SQL level 1
ORA-12663: Services required by client not available on the server
ORA-36961: Oracle OLAP is not available.
ORA-06512: at "SYS.OLAPIHISTORYRETENTION", line 1
ORA-06512: at line 15

N73 got shuts down automatically after some time

hi,
my n73 music edition gets shut down after some time autmatically please can anybody tell me the reason.

The reason is that nokia phones have many bugs and problems.
A common cause of this problem is 3G. If the phone is in a weak 3G area the loss of 3G signal can cause the phone to reboot. It's an old problem thats been affecting nokia's for years. Disabling 3G can stop the random shutdowns.
It may also be worth updating the phones firmware but this is a fairly risky procedure that can cause more problems than it solves.

Firefox Version 3.6.9 will support Mac OS X 10.8.5, as we are facing network timeout error after some time, we have checked all other settings

Firefox Version 3.6.9 will support Mac OS X 10.8.5, as we are facing network timeout error after some time, we have checked all other settings

We cant upgrade

I've tried to update my ipad 2 with IOs 6 but it was not possible. An error message always appear after some time during e download. Is there an solution?

I've tried to update my ipad 2 with IOs 6 but it was not possible. An error message always appear after some time during e download. Is there an solution?

Are you trying to update via wifi or connected to your computer?
 Cheers, Tom

Firefox consumes a lot of CPU resources after some time

Hi,
I've upgraded from Firefox 3.5.16 to Firefox 5.0 on Linux i386 with 512 MB RAM. Everything is working fine until after "some time" (don't know the exact time period) the CPU load increases to 100%, my average system load explodes and the system is swapping memory wildly. This suddenly happens, even if Firefox is in the background while I'm working on different things. So it does not belong to any memory-hungry stuff like Flash pages or JavaScript sites.
I don't think the problem is caused by my extensions (adblock, noscript, multifox, tabloc) or plugins (mplayer/Flash) either.
I think it is the Javascript Garbage Collector. I could tweak its cycle time in about:config, but this would just be work around the problem.
Note that I usually have many open (app) tabs that extensively use Javascript and AJAX.
I really like the new Firefox features, but I haven't expected that "5.0" stands for 5.0 average system load. Sorry couldn't resist that remark ;D
bcctr

I updated to Firefox Aurora this morning. Problems seem to be solved. Thank you!

System Slow-Down After Printing

I recently installed Mountain Lion. Over the last couple of weeks I have noticed a significant operating system (10.8.2) slow down after printing with my Epson R3000 printer. This happens after every printing session. When I say slow-down I mean significant delays and dreading "beachballs" when opening applications, selecting menu items or anything else I should choose to do. I'm left with re-starting the computer to get going normally again.After re-atarting I have gone to "verify permissions" and I get approx "5" pages of permission errors, all associated with the printer library in some fashion or another. I then repair all those permissions and re-start my MacPro. The operating system then works as normal and I can use the computer with no problems (until I start printing again). I mainly use the computer for photo editing with Adobe Photoshop CS6, Adobe Lightroom 4 and Aperture 3.2.
I did not have this problem before upgrading to Mountain Lion (and then to 10.8.2). I did not get "significant" permission errors before upgrading. Since all printer drivers for this printer are handled now by Apple via the "new" Software Update process I can't even re-download the Epson printer driver and start over. I'm completely at a loss as to what, associated with the printer function, is causing these "significant" permission errors and subsequent operating system slow down. My printer is almost brand new and was working flawlessly before Mountain Lion. Let me be clear though, I can print fine. My problem is the system slow down after using the print function which I am only guessing has something to do with the "5" pages of permission errors after printting photos (with CS6/Lightroom/Aperture).
Incidently, I am not in any way a computer expert. Verifying and repairing permissions is about all I know how to do that's why I need help. I also just thought I would try the forums first before going to technical support to see what people thought about this.
Again, I repair the permission errors, re-start my system and all is fine. Any further suggestions would be deeply appreciated.

When you see a beachball cursor or the slowness is especially bad, note the exact time: hour, minute, second.
These instructions must be carried out as an administrator. If you have only one user account, you are the administrator.
Launch the Console application in any of the following ways:
☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)
☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.
☞ Open LaunchPad and start typing the name.
The title of the Console window should be All Messages. If it isn't, select
          SYSTEM LOG QUERIES ▹ All Messages
from the log list on the left. If you don't see that list, select
          View ▹ Show Log List
from the menu bar at the top of the screen.
Each message in the log begins with the date and time when it was entered. Scroll back to the time you noted above.
Select the messages entered from then until the end of the episode, or until they start to repeat, whichever comes first.
Copy the messages to the Clipboard by pressing the key combination command-C. Paste into a reply to this message by pressing command-V.
The log contains a vast amount of information, almost all of it useless for solving any particular problem. When posting a log extract, be selective. A few dozen lines are almost always more than enough.
Please don't indiscriminately dump thousands of lines from the log into this discussion.
Please don't post screenshots of log messages—post the text.
Some private information, such as your name, may appear in the log. Anonymize before posting.

System slow down after upgrade to 10.10.2

Still have a slow down after updating to 10.10.2
Tried everything I can think of.
Get spinning color wheel for a long time when opening even small files. Scrolling through folders, cursor hangs for a moment. opening and saving takes much longer.
Used HD repair and repaired permissions and diagnosed HD. No problems.
Looking at Activity Monitor, I don't see anything that stand out-
-C

When you see a beachball cursor or the slowness is especially bad, note the exact time: hour, minute, second.
These instructions must be carried out as an administrator. If you have only one user account, you are the administrator.
Launch the Console application in any of the following ways:
☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)
☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.
☞ Open LaunchPad and start typing the name.
The title of the Console window should be All Messages. If it isn't, select
          SYSTEM LOG QUERIES ▹ All Messages
from the log list on the left. If you don't see that list, select
          View ▹ Show Log List
from the menu bar at the top of the screen.
Each message in the log begins with the date and time when it was entered. Scroll back to the time you noted above.
Select the messages entered from then until the end of the episode, or until they start to repeat, whichever comes first.
Copy the messages to the Clipboard by pressing the key combination command-C. Paste into a reply to this message by pressing command-V.
The log contains a vast amount of information, almost all of it useless for solving any particular problem. When posting a log extract, be selective. A few dozen lines are almost always more than enough.
Please don't indiscriminately dump thousands of lines from the log into this discussion.
Please don't post screenshots of log messages—post the text.
Some private information, such as your name, may appear in the log. Anonymize before posting.

BC4j/JSP Application not responding after some time - when deployed on 9ias BC4j/JSP

Hi,
We are using BC4j/jsp application on 9ias. The application is not responding
after some time. We have installed 9ias on PIII(384MB RAM). We tried to accesses
with 10 users, and server is not responding to BC4J/JSP application.
However the server could able to publish the JSP pages with standerad JDBC code even after that.
Please....help us.........
many many thanks in advance

<BLOCKQUOTE><font size="1" face="Verdana, Arial">quote:</font><HR>Is there any mechanism that cleans up these connections (back down to the initial or some other minimum I would guess) or do they hang around until either the app server or database shuts down?<HR></BLOCKQUOTE>
There is currently no mechanism for reducing the connection pool size after a period of high activity. Recently this has been frequently requested and as such will be implemented in the next production release.
<BLOCKQUOTE><font size="1" face="Verdana, Arial">quote:</font><HR>We have verified this in manual testing. However, when the load tool script exits it doesn't seem to release resources. We know this because we keep seeing our database connections go up and up as more tests are run. Further, we also seem to see more than one connection per "virtual user". For example, when I connect 5 users to the app in manual testing, I get 5 connections. But, when we run a test using the tool, we get 395 database sessions for 200 users. We are having a bit of difficulty understanding why the behavior is different.<HR></BLOCKQUOTE>
Assuming that the you are performing your manual testing against the same instance of the application on which you are performing your load testing, I would assume that the connections are being released to the pool at the end of the request. One possible reason for the approximate 2:1 ratio between connections and virtual users may be BC4J's use of internal connections. What version of BC4J are you using?
BC4J requires an internal connection to support state management and spill to disk. The internal connections are pooled with the transaction connection and only held for the duration of the persistence operation. However, if the web server is very busy then a large number of synchronous persistence requests may be received which would explain the eventual 2:1 ratio in the pool's high water mark.
If the user start times and think times are staggered in order to reduce the incidence of synchronous persistence requests does the ratio of connections to web sessions stabilize at some lower number (i.e. 1.5:1)

Lightroom workflow slows down after modifying an image

Hi fellow users,
Lightroom 4.3 runs smoothly if I work on unmodified images.
However, if I apply modifications on an image, retouching it afterwards becomes much slower, even if I render a preview AFTER I made modifications on the image.
I tell you an example: I import a raw file to the program and I render it`s preview. Then I retouch the image - it works very fast, no waiting time, no Loading overlay.
Where the problem starts: I import a raw file, I apply some modifications on it (for example a preset), then I render it`s preview - then I want to do more modifications on the image, which becomes very slow.
I was monitoring the cpu usage of the computer. In the first case, the cpu usage during modifying the image is normal.
In the second case, it goes up to 100%.
It seems that applying modifications on an image makes working on it slow, no matter if you have the most up-to-date preview or not.
Anyone knows if it is normal or not?
Is there any solution to this?
Thanks,
Tamas
My configuration:
Windows 7 64 bit (up to date)
Lightroom 4.3 64 bit
Fast PC
lightroom settings:
camera raw cache: 20gb
video cache: 10gb

First of all, you can forget about the preview rendering, that's irrelevant. Previews are only used by the Library module, not the Develop module. In Develop, it's handled by the ACR cache.
Now, as for slowing down after initial adjustments, that's a variable I haven't looked out for. But it could well be correct (it would explain some weird results I got across two machines recently).
In general, Lightroom 4 performs well below expected standards on some systems, while others fly along, and it seems nobody can explain why. Long story, do a search on this forum and you'll come up with several lengthy threads. The problem is that there are so many variables in this that it's almost impossible to even define what "slow" means. And now you've added another (interesting) one...

Windows 8.1 gradually slows down after hours. Speed returns normal if restart "explorer.exe".

I have Windows 8.1 Pro (x64) installed on Alienware M17x. The slowdown mostly appears as slow response in the situation such as open a folder/window, open/close/switch tabs in IE, drag window, and there's also cursor lag. It gradually
slows down after system boot, noticeable after 3-4 hours, really slow after 8-9 hours.
I have thought about many possible processes which can cause this issue, and then I found out that it's caused by "explorer.exe". If I kill "explorer.exe", the speed suddenly becomes normal. Then, I restart explorer.exe
again, it stays normal, and then it still gradually slows down again after hours.
I have checked driver or software compatibility. Also, CPU usage and Disk usage is normal.
Please give some advises, reasoning, or solutions.

SaccoSVD
The process that is causing the problem is called sidebar.exe and I am curious why it is running on a win 8 machine as I dont believe it is built in. (It seems to have over 22,000 instances launched so I suspect either malware or a broken app)
It is usually associated with a Vista machine, or updated win 7 machine. Did you do do a clean install? Have you run a malwarebytes scan?
Please download the free version of Malwarebytes.
Update it immediately.
Do a full system scan
Let us know the results at the end.
http://www.malwarebytes.org/products
Wanikiya and Dyami--Team Zigzag

Firefox 4 slowes down after some time - possibly memory leak related

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