Clear the page cache

Hi,
We have recently started to develop our application on Solaris, before each regression test is run we need to clear the page cache so that performance is consistent. On Redhat/CentOS there is the following command:
To free pagecache, dentries and inodes:
echo 3 > /proc/sys/vm/drop_caches
However I cant find an equivalent command for Solaris. We have been using tail -f /dev/zero to run a huge process until the memory has been flushed which isn't very reliable and slow. Anyone know of a different way to do this?

If we are running multiple tests one after the other then the first test may make calls which causes information to be cached, then when the second test runs it may make use of the previously used pages in cache. This makes the second test results inconsistent as if it ran first the timing results would be different, also running through a debugger or with truss doesn't give the accuracy for timing that is required in this situation.

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Hi Guys,
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Gourisankar.

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The Problem about clearing the system cache

Hi, there!
I'm trying to draw a lot of image in iPhone programming.
I used [UIImage imageNamed].
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Read Position.flx can execute much faster than 5 ms but as it reads a register that is updated every 5 ms on the board, it reads the same value multiple times.
To get around this problem there are two methods:
Buffered High-Speed-Capturing (HSC)
With buffered HSC the board stores a position value in it's onboard buffer each time a trigger occurrs on the axis' trigger input. HSC allows a trigger rate of about 2 kHz. That means, you can store a position value every 500 µs. Please refer to the HSC examples. You may have to look into the buffered breakpoint examples to learn how to use a buffer, as there doesn't seem to be a buffered HSC example available. Please note that you need an external trigger-signal (e. g. from a counter of a DAQ board). Please note that the amount of position data that you can acquire in a single shot is limited to about 16.000 values.
Buffered position measurement with additional plugin-board
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Clear the Browser cache while Outputting PDFs

Hi,
I am using Servlet to output a PDF (Streams), i am facing Browser cache problem in IE
since i am setting Content type to PDF as follows...
response.setContentType("application/pdf")
i could not able to use follwoing Clear the Browser Cache
response.setHeader("pragma", "no-cache");
response.setHeader("Cache-Control", "no-cache");
response.setHeader("Cache-Control", "no-store");
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the above code is not working fine in Netscape but not in IE.
Can any one help me out in this.
Regards
SAM

Hi,
I have a problem with pdf file also, everything working fine in IE and
netscape, but when I tried the streaming of pDF document from my
servlet in response to a request from Opera browser it failed.
the url may give some idea,
http://localhost:8080/pdf/pdfdownload?PDF_FILE=abc.pdf
here pdfdownload is my servlet, and code I used to stream like following
public service(HttpServletRequest req,HttpServletResponse)
ServletContext sc=getServletContext();
String mimeType=sc.getMimeType((String)
req.getParameter("PDF_FILE"));
res.setContentType(mimeType);
File pdf=new File((String)req.getParameter("PDF_FILE"));
res.setContentLength((int)pdf.length());
InputStream in=new FileInputStream(pdf);
OutputStream os=res.getoutputStream();
byte[] buf=new byte[1024];
int count=0;
while(in.available>0)
count=in.read(buf);
os.write(buf,0,count);
the detailed code kept out for simplicity, but the idea is pretty
much is this.
Now, opera opening the stream for a file name pdfdownload and
storing locally and then opening my acrobat reader, the second
time if called it trying to create another file by name
pdfdownload (1)? xxxx where ? is an unknown character, this is
where it's failing, unable to create the file so failing to open
the pdf file. what best process would be to follow in servlet so
the streaming works in all browser, I have seen many link in sun
sites, opening up pdf but it seems they all are stream, and my
opera can identify their size and file name distinctly and saving
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Jishu

How do I clear the Disco cache on App Server 9.0.4

Can anyone tell me how I can clear the Discoverer cache installed on 9.0.4 Oracle App Server? Can it be done using App Server Control, is there command line syntax I can use?
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Andy

Hi Andy
I think the only way to get the memory back is to bounce the server. Sorry.
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How can I clear the DNS cache?

I haven't been able to connect to my local Library since January. When I key in the URL, it starts the access routine and then after about 20 minutes, I have to kill it because nothing happens. I contacted the IT folks at the library and was told that they had made a few changes around the time my problem began so maybe the DNS cache was still pointing at the old info. He recommended that I enter TERMINAL mode and try to clear the DNS cache, using "sudo dscacheutil -flushcache" command. . I attempted this several times, even changing my applid password, and kept getting invalid responses.

I did try that and after a few trys it finally worked. It took quite awhile for the window for the library to finally come up, but it did and I am now able to get in and out with no problems with my library access. Now when I call up my bank, parts of it don't come up and it kicks me out. Now, I'll have to search for what fixes that - as it has happened before, so I know it's fixable. Thanks for you help though.

Clear the classloader cache

Hi all.
I am trying to clear the classloader cache of the jvm from out my applet.
(Basicaly like typing x on the java console when a applet runs, but automaticallt)
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globe_sa

I don't think so, you'll have to write your own classloader.

How to clear the Entity Cache

I have an Entity based on a GLOBAL temp table. I have a ViewObject based on the Entity. A stored procedure is called from the client that populates the GLOBAL temp table and then calls executeQuery on the ViewObject. The first time the user does this, all rows display fine. When the user changes the selection criteria and clicks a button a 2nd time, the same procedure is called which clears the GLOBAL temp table and repopulates it with the new data. An exception occurs, however, stating that there are too many rows that match the key. The problem seems to be that the Enity has cached the rows from the first execute, but those rows aren't flushed when the 2nd execute is called, which makes sense. It seems that I just need to force the Entity to clear it's cache after my procedure is called, but before the executeQuery is called. I have tried that from the client side by calling clearCache on the view AND clearEntityCache on the transaction, but they don't seem to do anything. I have also called clear cache on the app module side in the method that calls the stored procedure, but it doesn't seem to do anything either. I also turned on the JBO debugging messages and I can't see any message stating that the Entity or View cache was cleared. It appears that these calls do nothing.
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Erik

Typically the client layer never has access to entities. This API is the one exception. The way to keep it cleaner would be to create a custom Application Module method, and inside that perform the clear cache, rather than burdening the client to have to know about any details of underlying entity objects. Keep that hidden.
I wouldn't think you should need to clear the entity cache to do what you're doing, though. If you have a reproducible test case -- with SQL script that creates your example global tempory table -- if you could create a TAR on Metalink and ask support to file a bug for it, that would be great so we can look into it.

Clearing the Media Cache Database

Hi, In a tutorial on using Encore CS6 it says to "clear the media cache database"
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Thanks

PPro and Encore create MANY temporary files, which may be deleted when you are done with the project... your original video clips and project files are in a location of your choosing, not in the cache folders
Some more on locations http://forums.adobe.com/thread/1007934?tstart=0
And, one way to design your project http://forums.adobe.com/thread/919388?tstart=0
I always create my project files on my 2nd hard drive (see below) so the temporary files are also put on that drive
My 3 hard drives for video editing are configured as...
1 - 320Gig Boot for Win7 64bit Pro and ALL program installs (2)
2 - 320Gig data for Win7 paging swap file and video project files
When I create a project on #2 drive, the various work files follow,
so my boot drive is not used for the media cache folders and files
3 - 1Terabyte data for all video files... input & output files (1)
(1) for faster input/output if you have 4 drives
- use drive 3 for all source files
- use drive 4 for all output files
(2) only 60Gig used, for Win7 & CS5 MC & MS Office & other smaller programs
Search Microsoft to find out how to redirect your Windows paging swap file
http://search.microsoft.com/search.aspx?mkt=en-US&setlang=en-US
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Clear the weblogic cache

Hi All
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<app_name>/tmp/_WL_user) upon each restart of the server?
I am using Weblogic 9.1 and application is deployed using
exploded mode
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We have seen that error as well. When using entity beans, we could do some creates, but then we would get the Cursor error. It would happen sporadically.
IBM now has better Type 4 drivers with version 8.2, we are having better luck with them then with the BEA drivers.

How to clear the Page '09 recents list?

On Pages '09 and Mtn Lion.
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Having a functional right-click recents menu on the Pages icon sure would boost my productivity, so any help certainly will be appeciated.
-Nick

I did this every few minutes all evening and again this morning ,,,,
"Sometimes it takes a few moments to happen, sometimes you have to open then quit the app a few times, but the list does goe away as do the thumbnail Icons from the Right-Click > Show Recents in The Dock Icon."
.... and Pages' right-click's recents menu remained filled with non-existant files. Same problem in Numbers and Keynote.
Did a Restart and the problem magically disappeared .... problem RESOLVED!
-Nick T.
note: This may have been the first reboot since installing Mountain Lion two or three days ago.

How can I clear the Safari cache without removing cookies?

Safari preferences seem to only allow you to delete all website data. Is there a way of clearing the cache but leaving cookies and browsing history?
I have Safari version 6.0.5 and OSX 10.8.4. Thanks.

Safari > Preference > Advanced
Checkmark the box for "Show Develop menu in menu bar".
Develop menu will appear in the Safari menu bar.
Click Develop and select "Empty Caches" from the dropdown.
http://support.apple.com/kb/PH11926
Best.

Clear the page when navigate through menubar

Hi All,
Need help to resolve the problem.
In my page, i have menubar with couple of command menu item. One is for to enter new record and another is for to search the record.
When i click the search menubar, it will take to search screen and i can able to search the record with input criteria. After fetching the result, i am selecting the record to view full complete details and return back to search screen. At this time i need to maintain entered search criteria value and also result in the table.
What i need is after search , if i navigate to creation form using menubar item and then again coming back to search screen. At this time i want to clear the form. I want to display the screen without any values.
How to clear the values when we navigate through menubar item.
Kindly suggest tips or any sample for to fix it.
Thanks & Regards
Vimalan Balan

Hi Frank,
Thanks for your reply. I will just explain what happened initially.
When i click the search menu item, it loads the page, while loading it executes the findSearchQuery method in the EJB. Initially there is no value, so it shows empty screen. After entered value in the screen and search it. It displays result in the page.
After that i navigate to another page through the menu bar and again back to search screen at this the value was there so the findSearchQuery is executing.
I tried giving refresh="prepareModel" in the page definition file. But no impact.
That's i went to second approach.
If you don't mine please give syntax for to refresh the binding..when we navigate through the menu bar.
Thanks & Regards
Vimalan Balan

How do I clear The Browser Cache ?

I can't find the setting to Clear Browser Cache when I pull down the Safari Setting; how can I clear the cache now?

Are you running Safari 6?
Click Safari in the menu bar and click "About Safari"
The resulting window will show the Safari verion number.
The method described in the previous post works with Safari 6.

How can i clear the preview cache?

i cant start the software.
Because i have a error in the preview cache.
how can i clear the cache?

Hello milan,
could you have a look there:
http://helpx.adobe.com/lightroom/kb/optimize-performance-lightroom.html and >>>
http://help.adobe.com/en_US/Lightroom/3.0/Using/WS47E8B7F6-16B7-40db-9B3E-2B7D45DCD418.htm l
Hans-Günter

Clear the page cache

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