Application slows down randomly.
Hi allI have an application that runs on the connection and make queries against an oracle DB. Every now and then, for no apparent reason, each request for this becomes extremely slow. I don't know if anyone has had a similar problem.
To do some tests, I created a simple procedure that connects to the DB and the fact even select (select * twice) in a loop for 100K times. I still get the same problem, most queries will instantly, but sometimes in groups of 3 or more, the queries take up to 10 seconds! I don't know what to do!
I have Windows server 2003 64-bit R2 and Oracle 10.2.0.4.
I checked that it is not a network problem (I get the question also on site) or Windows (I have a lot of RAM and free disk space)
Any tips? Let me know if you need more information.
P.s. I can't talk to you about what either the application because I don't know how it is written, and I'm not allowed to know...
It seems that the problem was the server. We moved the DB to another server, and the problem disappeared. Unfortunately we did not understand why this is a problem on the server. At least we now have an application to work.
Thanks for all the help!
Tags: Database
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I would like to help to get my Mac back to the current.
EtreCheck version: 2.9.12 (265)
Report generated 2016-06-29 14:43:13
Download EtreCheck from https://etrecheck.com
Time 05:06
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Click the [Support] links to help with non-Apple products.
Click [details] for more information on this line.
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Computer is too slow
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/System/Library/CoreServices/dock.app/Contents/MacOS/dock
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What I propose to do this is
Stop
Remove all external devices except the keyboard and mouse
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As to if it slows down your Firefox or your entire system, I cannot say, but some add-ons can connect to the internet in the background, for example, to check for mail or retrieve news/weather/etc. The best way to judge if the extension's bad performance is to use Firefox without it for awhile.
The news that you pasted in your post usually comes in the DETAILS of the SYSTEM link OVER to the right of the question. Not sure what was wrong here.
Last but not least, the forum software detected your Firefox in version 18. Is this correct?
Version 18 is not safe; Mozilla reveals security flaws after each new version. Is something holding you upgrade to Firefox 21? Please let us know if we can offer you solutions or workarounds.
If help > about Firefox shows 21.0 Firefox, you may need to disable the preference that is misrepresentation of your version number. See: sites say that Firefox is obsolete or incompatible, even if it's the latest version.
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Duration 05:18
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Click the [Support] links to help with non-Apple products.
Click [details] for more information on this line.
Problem: Computer is too slow
iMac (retina 5K, 27 inches, end of 2015)
[Data sheet] - [User Guide] - [warranty & Service]
iMac - model: iMac17, 1
1 3.3 GHz Intel Core i5 CPU: 4 strands
8 GB of RAM expandable - [Instructions]
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AMD Radeon R9 M395 - VRAM: 2048 MB
iMac 5120 x 2880
OS X El Capitan 10.11.4 (15E65) - since startup time: less than an hour
ST2000DM001 disk HARD APPLE disk0: (2 TB) (rotation)
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Recovery HD (disk0s3) < not mounted > [recovery]: 650 MB
Macintosh HD (2) /: 2.11 TB (905,59 GB free)
Storage of carrots: disk1s2 120.99 GB Online
Storage of carrots: disk0s2 2.00 TB online
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Boot OS X (disk1s3) < not mounted >: 134 MB
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[loading] 398 tasks Apple
[operation] 198 tasks Apple
AdobeAAMDetect: 3.0.0.0 - SDK 10.9 (2016-04-12) [Support]
QuickTime Plugin: 7.7.3 (2016-03-22)
AdobePDFViewerNPAPI: 15.010.20060 - SDK 10.8 (2016-03-09) [Support]
AdobePDFViewer: 15.010.20060 - SDK 10.8 (2016-03-09) [Support]
Default browser: 601 - SDK 10.11 (2016-03-22)
SharePointBrowserPlugin: 14.0.0 (2010-08-25) [Support]
WacomTabletPlugin: WacomTabletPlugin 2.1.0.6 - SDK 10.9 (2015-11-04) [Support]
JavaAppletPlugin: Java 8 updated 66 17 (2016-02-12) check the version of build
Fan HDD control (2016-04-16) [Support]
Java (2015-10-07) [Support]
WacomTablet (2015-11-04) [Support]
Skip system files: No.
Mobile backups: OFF
Automatic backup: YES
Volumes to back up:
Macintosh HD: Disc size: 2.11 TB disk used: 1.21 TB
Destinations:
[Network] data
Total size: TB 3.00
Total number of backups: 38
An older backup: 04/01/16, 11:17
Last backup: 17/04/16, 11:39
Backup disk size: too small
Backup TB 3.00 size < (disc 1.21 TB X 3)
6% WindowServer
kernel_task 2%
Synchronization of 0%
0% AdobeUpdateDaemon
0% captmoncnabc
Top of page process of memory: ⓘ
803 MB kernel_task
262 MB mdworker (14)
213 MB Adobe CEF Helper (2)
Mds_stores 156 MB
156MO Dock
1.90 GB of free RAM
6.10 GB used RAM (3.39 GB being cached)
Used Swap 0 B
17 April 2016, 12:56:18 test - passed
Any suggestions would be greatly appreciated.
In the meantime, I'm trying to understand what is causing the problem kernel_task.
Bad fan is the cause. The machine is to be limited to avoid overheating.
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HI I'm looking for a solution, my IMAC 2008 has started to slow down last week, I ran Norton and found lots of malware and virus no matter what you call it. Since then, the computer is always slow to start and function and I noticed the hard drive is running out of space, and it took almost 40 GB of space since last week!
I appreciate any suggestions on how to solve this problem. I have OS X 10.11.3
Thank you
The first step and perhaps the only one, is to get rid of "Norton", which is worse than useless.
Please remove the Norton/Symantec products in accordance with these instructions. If you have a different version of the product, the steps may be different. If you have tried to remove it by dragging an application to the trash, reinstall it and finish the job.
Back up all data before making any changes. Never install any product "anti-virus" or "anti-malware" again.
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Products using Apple slows down other connected devices
I recently started a problem where using an Apple with my AirPort Extreme product slows down or stops even connections other devices connected to the router. An example is when my iPhone download updates of applications, then my Mac, iPad, and an another android phone to family members cannot browse the Internet. Connecting to the Wi - Fi connection does not decrease, but there seems to be no access to the Internet through that when checking through airport utility it shows that the Internet is here. Amother example is when you watch a movie to iTunes through my Apple TV, so I'm not able to browse the Internet on my iPhone. I am currently using 6th generation airport extreme.
Unfortunately, this sort of thing happens with the airport, having no function of Quality of Service there is no real way to fix it.
I suggest to use different names and groups and forcing devices to a band or another problem... for example all the stuff on 5 GHz problem. See if that helps.
I doubt it makes a difference, but what is the configuration...
This modem do you have? What is a router?
Is EI in bridge mode or router?
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Why my browsers always slow down eventually?
I have a Macbook Air and use Safari and Chrome. Usually, I'm in the same room as my wireless router. Constantly, both browsers will begin to slow down in terms of loading pages and finally become inadmissible. I must close/reopen the window or completely restart the computer. In Safari, I use pine tab add-on, and 7 to 8 pinned tabs. I do regular maintenance on my laptop using the utility application, Onyx, to clear the cache, etc. Nothing seems to help.
Chrome was a resource hog on Macs for a long time.
You really have a reason to keep Chrome installed?
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DaqMX wait the next sample causing slow down Clock.vi
Hello
I have a question about the proper use of DaqMX wait for next sample clock.
I read channels analog voltage on a map or pcie-6259.
I would like to read as soon as possible make your comments between each of these points of single data points.
I wish I had an error generated if I miss a data point.
From reading the forums, I've gathered that the best way to do it is using the Timed Single Point material.
A simplified program that I use to test this is attached.
If I remove the DaqMX wait for next sample Clock.vi, my program seems to work.
I added a counter to check the total time is as expected.
For example, the program seems to work at the speed appropriate for 120.
However, without that vi, it seems that the program does not generate a warning if I missed a sample.
So I thought that the next sample clock waiting vi could be used to determine if a single data point has been missed using the output "is late."
However, when I add inside as shown in the joint, the program seems to slow down considerably.
At high rates as 120000, I get the error:-209802
14kHz is the approximate maximum rate before you start to make mistakes.
My question is: is this the right way to check a missed sample? I don't understand why the wait next sample Clock.vi is originally a slow down. Without this vi, the program does just what I want except that I do not have strict error control.
My confusion may be based on a lack of understanding of real-time systems. I don't think I do 'real time' as I run on an ordinary pc, so maybe I use some features that I wouldn't.
Thank you
Mike
Mike,
You should be able to read to return delays errors and warnings by setting the DAQmx real-time-> ReportMissedSamp property. I think that if you enable this, you will see errors or warnings (according to the DAQmx real-time-> ConvertLateErrorsToWarnings) in the case where you use read-only. I'm a little surprised that you have measured your application works at 120 kHz without waiting for next sample clock (WFNSC), although I'm not surprised that it would be significantly faster. I think if you call read-only, you'll read the last sample available regardless of whether you would of missed samples or not. When you call WFNSC, DAQmx will always wait for the next, if you are late or not sample clock. In this case, you will wait an additional sample clock that is not the case in read-only. Once again, I expect that, in both cases, your loop would not go to 120 kHz.
Features real-time DAQmx (hardware Timed Single Point - HWTSP) are a set of features that are optimized for a one-time operation, but also a mechanism to provide feedback as to if a request is following the acquisition. There is nothing inherently wrong with using this feature on a non real-time OS. However, planner of a non real-time OS is not going to be deterministic. This means that your app 'real time' may be interrupted for a period not confined while the BONE died in the service of other applications or everything he needs to do. DAQmx will always tell you if your application is to follow, but can do nothing to guarantee that this will happen. Thus, your request * must * tolerant bet of this type of interruption.
There are a few things to consider. If it is important that you perform the action at a given rate, then you should consider using a real-time operating system, or even with an FPGA based approach. If it is not essential to your system, you might consider using is HWTSP, where you do not declare lack samples (DAQmx simply give you the most recent example), or you could avoid HW timing all together and just use HAVE request to acquire a sample at a time. What is appropriate depends on the requirements of your application.
Hope that helps,
Dan
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computer slows down when you play games online (IE facebook games)
When Facebook games like war command my computer slows down. I don't have any other applications running, sometimes I get a message saying that to appear this program using the amount of memory and I have to close and restart
Hello
1. what version of Windows is installed on the computer?
2. in the browser that you play Facebook games?
3. What is the full error message?
4 is about the limit for the Facebook games?
5 is this a connection wired or wireless?
6 have have there been recent changes made on the computer before the show?
Method 1:
I suggest you run the troubleshooter of performance on the system and verify.
Open the troubleshooter of Performance
http://Windows.Microsoft.com/en-us/Windows7/open-the-performance-Troubleshooter
Method 2: Follow the steps in the following article and check if it helps.
Note: Please proceed if you use internet explore for playing games.
The problems of games online using Internet Explorer
http://support.Microsoft.com/kb/2528246
Warning: Reset the Internet Explorer settings can reset security settings or privacy settings that you have added to the list of Trusted Sites. Reset the Internet Explorer settings can also reset parental control settings. We recommend that you note these sites before you use the reset Internet Explorer settings.
If the steps above did not fix the problem, please provide me with the required information so that we can help you accordingly.
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