How to validate the performance of I/o using calibrate_io
Dear Experts,
I ran the calibrate_io as recommended by the expert, but now, I am not able it analysed.
01:38:29 SQL> declare 01:38:55 2 l_latency integer; 01:38:55 3 l_iops integer; 01:38:55 4 l_mbps integer; 01:38:55 5 begin 01:38:55 6 dbms_resource_manager.calibrate_io ( 01:38:55 7 4, 01:38:55 8 10, 01:38:55 9 l_iops, 01:38:55 10 l_mbps, 01:38:55 11 l_latency 01:38:55 12 ); 01:38:55 13 dbms_output.put_line ( l_iops); 01:38:55 14 dbms_output.put_line (l_latency); 01:38:55 15 dbms_output.put_line( l_mbps); 01:38:55 16 end; 01:38:55 17 /
.START_TIME : 09-MAR-14 01.38.58.619000 AM
.END_TIME : 09-MAR-14 01.43.35.354000 AM
.MAX_IOPS : 87
.MAX_MBPS : 54
.MAX_PMBPS : 9
.LATENCY : 10
.NUM_PHYSICAL_DISKS : 4
select * from v$io_calibration_status
.FILE_NO : 139
.FILETYPE_ID : 2
.FILETYPE_NAME : Data File
.SMALL_READ_MEGABYTES : 2119
.SMALL_WRITE_MEGABYTES : 5559
.LARGE_READ_MEGABYTES : 293883
.LARGE_WRITE_MEGABYTES : 20828
.SMALL_READ_REQS : 66028
.SMALL_WRITE_REQS : 390746
.SMALL_SYNC_READ_REQS : 35648
.LARGE_READ_REQS : 295787
.LARGE_WRITE_REQS : 84528
.SMALL_READ_SERVICETIME : 13955851631
.SMALL_WRITE_SERVICETIME : 413902932
.SMALL_SYNC_READ_LATENCY : 7610803738
.LARGE_READ_SERVICETIME : 1385363733
.LARGE_WRITE_SERVICETIME : 7769742
.ASYNCH_IO : ASYNC_ON
.ACCESS_METHOD : OS_LIB
.RETRIES_ON_ERROR : 0
-----------------
I have 40G RAM wndows 2012 os 11 GR 2 database
I have 4 2 TB drives, but I think that my IO is slow.
I have table of 500G and I need to create 20 indexes (each 10 GB) on it, and it's very slow.
Each index is 2.5 hours and running more to create indexes in parallel session is not to reduce the time spent together.
Question : Is my disk IO slow?
Ok
For now, I'm going to assume there is a paging file (pagefile.sys) and it's on C:
I will assume you also do not have RAID, or you have RAID-5.
Your data, it is clear that you have a bottleneck of e/s on the D drive.
More than 40 applications for e/s in the queue is considered to be the IO bottleneck.
Refer to
Disk Avg. QUEUE length 51,000 51,000 0
Disk AVG READ TAIL length 51,000 51,000 0
The i/o bottleneck is caused by having everything on one disc.
This also translates single Point of failure.
(If this breaks your database is ready for the funeral, if you do not have a backup).
Oracle recommends to use RAID 1 + 0 (= SAME band and the mirror). To aid that it would be no more important where the files are.
A SAN or a NAS would be a good RAID 1 + 0 configuration.
You might want to consider also buying conventional additional disks and separate data and indices.
However using RAID technology good should not be necessary.
-----------
Sybrand Bakker
Senior Oracle DBA
Tags: Database
Similar Questions
-
How to validate the field "Reason for change" in the commercial indications using JavaScript?
How to validate the field "reason for change" in the commercial directions Summary tab using JavaScript?
Current version of PLM4P: v6.1.1.5.2
Please help me to validate the fields using JavaScript.
Thank you
Nefertari
Developed using some of the Javascript predefined functions that we offer, it's just JavaScript and jQuery.
But here is an example.
(Use Internet Explorer F12 developer tools to find the IDS of the fields to work with.)
$(document).ready(function() { if (UI_Ext_isSpecInEditMode && UI_Ext_HasWorkflowBehavior('1005')) { //normally, we can use jquery to retrieve elements ($('#ifOfInput).val()), but it seems to fail when the id and the name attributes are the same. so we just use javascript document.getElementById instead. var reasonForChange = document.getElementById('ctl01$SpecSummaryctl1$ctlCollapsibleContentContainer$ctl00$txtChangeReason') if (reasonForChange != null) { if (reasonForChange.value == null || reasonForChange.value.length == 0) { UI_Ext_MarkFieldAsRequired('ctl01_SpecSummaryctl1_ctlCollapsibleContentContainer_ctl00_lblSpecSummaryReasonforChange'); alert('Reason For Change is required'); } } } });
However, not the user registration or workflow specification. If you were to do this, you must remove record them and workflow buttons and links, and this probably isn't the best practice. On the contrary, you would write validation server that would give you this error message if they try to save/workflow. (So most customers do not use Extensions of the user interface for this type of validation).
Kind regards
Ron
-
How to improve the performance of the import
I'm converting a database of its current WE8ISO88591 character set AL32UTF8
I use NLS_LENGTH_SEMANTICS to TANK so I don't have to increase the length of the column.
I followed the instructions in the Oracle:
144808.1
313175.1
Except import that takes too long.
I took a full database export WE8ISO8859p1 and now its importation in AL32UTF8.
It is always difficult to prove slow source; but I think it has to do something with NLS_LENGTH_SEMANTICS. On the same
Server; If the new database was in WE8ISO8859P1, a 5 million row table import took 2 hours; but in Al32UTF8 with NLS_LENGTH_SEMANTICS it takes 1 day!
No idea how to improve the performance of the import.DOUBLE WIRE!
Please, don't post duplicate discussions.
Mark this thread ANSWER and continue to use your original thread where you are already helped.
You have NOT given the info that has been ask in your other thread.
Re: NLS_LENGTH_SEMANTICS = CHAR import is too slow -
How to remove the support contact at screenshot using the "home" button
guys, please help, how to remove the support contact at screenshot using the "home" button? I use 6 s ios 9.2, but when I take screenshot with the menu help key, the help key disappear on my photo, but the problem is, I want to take screenshot with my home button, please help... Thank you
What turned the problem into a screen with the home button? Quickly, you press the power off button and home together and release - if the sounds are enabled - you should hear the camera shutter sound and have the capture in your app screen shots. The help key is not displayed
-
I have a new time capsule airport. How to limit the search for who can use the time capsule backup process?
Set a password to disk... disk tab in the utility... and just give to those you want to use the TC...
-
How to print the page on WiFi printer using ideapad a1
How to print the page on wifi printer using ideapad a1
Cloud Print (available in the game store) use Google chrome to print from the A1 motorway. You must have Chrome installed on your computer. If not connected to Google (required) or your PC/Mac/Linux computer is turned off, it will be printed when you log-n.
-
How to get the frame number current timeline using jsx?
How to get the frame number current timeline using jsx?
Thanks for the link!
Clarification: I was looking for the current image on the timeline of the video. OP he mentions that he had found how to get that so I searched a bit more and found this thread: Re: can I inpoint in read/write and out-point of the clips in a group of video with scripts? They have the following functions, I have not tried yet, but it seems like it should work.
function getCurrentFrame() {}
try {}
Var ref = new ActionReference();
ref.putProperty (charIDToTypeID ('Rprp'), stringIDToTypeID ('currentFrame'));
ref.putClass (stringIDToTypeID ('timeline'));
var / / desc = new ActionDescriptor();
desc.putReference (charIDToTypeID ('null'), ref);
var TC = executeAction (charIDToTypeID ('getd'), desc, DialogModes.NO);
Return TC.getInteger (stringIDToTypeID ('currentFrame'));
} catch (e) {return null ;}
};
-
How to create the MUCOW file in xml using Adobe Muse
How to create the file MUCOW as xml using Adobe Muse .kindly give step tutorial or PDF... WHERE DO I CREATE MUCOW? No idea for me
Just lucky to have this info to my favorites
-
How to automate the process of loading data using load file &; Task Scheduler
Hello
I do the automated processes to load the data into Hyperion Planning application using the file data_Load.bat & Scheduler of tasks.
I created Data_Load.bat file, but the rest of the process, I cannot complete.
Could help you me, how to automate the process of loading data using the file Data_load.bat & task Scheduler or what are the rest of the file is require it to achieve.
Thank youIn response to your question using the maxl for loading scripts?
If Yes, I've seen and deliver in the batch (ex: load_data.bat) that is you do not have the path of the maxl script complete with a batch when passing through the event the task scheduler will work, but the log file and / or error will not be created. Which means lots claims it linked task scheduler, although he did not do what you need to.
If you use maxl use this as the batch
"essmsh C:\data\DataLoad.mxl" or you can also use the full path for the maxl or work elsewhere. The only reason why I think that the maxl can then not work is if you do not have the updated batch updated to call on all LANE changes maxl or if you need to update your environment variables to correct the command essmsh to work in a command prompt.
-
How to cancel the deployment of soa project using Ant instead of use em manually
Hi guys:
I wonder how to cancel the deployment of soa project using Ant?
I know how to deploy cause it is Ant-sca - deploy.xml under the soa Server directory.
Thanks and greetings
HillyHi hilly
When I looked at the file ant - sca - deploy.xml, I could see a defintion of task named undeployComposite. See if you can run this task something similar to usingAnt Ant-sca - deploy.xml undeployComposite or something in that sense.
Thank you
Ravi Jegga -
How to detect the operating system to PDF using javascript
Hello
How to detect the operating system to PDF using javascript. (Javascript console)
Thanks in advance.
App.Platform will return "WIN", "MAC" or "UNIX".
-
How to validate the data of the LOV
Hello
How to validate data from field lov?
Requirement is my page 2 lov fields, this is a load of lov.
The fields will not allow invalid lov fields data when I click 'Save' button. Then, I need to display a message "select valid values in the lov fields."
Can someone help me on this req...
Thank you
Published by: 926074 on April 12, 2012 13:23Hello
Then, you will need to add the validation logic in the action to add another button of line also.
OAAdvancedTableBean tableBean = (OAAdvancedTableBean) webBean.findIndexedChildRecursive ("AdvTableId");
OATableFooterBean footerBean = (OATableFooterBean) tableBean.getFooter ();
if(footerBean!=null)
{
If ((tableBean.getName (pageContext) .equals (pageContext.getParameter (SOURCE_PARAM))) & (ADD_ROWS_EVENT.equals (pageContext.getParameter (EVENT_PARAM))))
{
DO the validation performed in Save button here too}
}Try this if it works.
Kind regards.
-
How to improve the performance of your computer and free up space.
Original title: the unwanted temporary files of windows is at the origin of the problems of proformanace
According to a check of problem: the unwanted files temporary windows could take to improve the performance of your computer and free up space.
Can anyone help with this simple problem.
Angelo
Hi Angelo,.
1. which edition of Windows are you running?Example: Windows 7 Professional 32 bit.Please follow the below link to clean unwanted temporary files.Delete files using disk cleanupMicrosoft at home.Slow PC? Optimize your computer for peak performanceMake slate: how to remove the unwanted files and programsI hope this helps. -
How to validate the license if installed XP from another drive?
Hi all...
* original title - how could validate my old driver's license if I cause istalled the BONES of another license (CD), I don't have the original to my PC (laptop IBM) CD? *
Have you used "Your" product key during installation of operating system from another CD?
Also is the an OEM XP CD or a CD at retail with the product key?
Here are some utilities, which will display your product keys:
Belarc Advisor: http://www.belarc.com/free_download.html
(He did a good job of providing a wealth of information.)Also: http://www.magicaljellybean.com/keyfinder.shtml
and: http://www.nirsoft.net/utils/product_cd_key_viewer.htmlNote: Also check the side of your PC case or at the bottom of the laptop for the
Key OEM code. If there is a sticker with the code, it will probably not
corresponds to what is displayed by the utilities mentioned above as OEM such as
Dell use an internal key code when they build your PC.The key on the sticker code should be used with your Windows CD
(who came if everything goes well with your PC) If you need to reinstall Windows.Never be afraid to ask. This forum has some of the best people in the world to help.
-
Performance indicators? How to confirm the performance?
I'm getting very concerned by the speed of copy/transfer files to and from the Media Hub. I bought it mainly as a NAS, but maybe it was my mistake, I thought not performance would be as slow as it sounds. I've seen the other comments on the performance, some answers have been pointing users to check their networks. I would like to know if there are some points of reference which can be published so that we can compare against them. Publish the test script and the results, then we can run the same tests and compare the results. I can withdraw from my network and connect directly to a switch isolated for testing if necessary, but I'd rather not have to disconnect things and go through that effort if I can test everything first and see how far off I am standard expectation.
If I can at least know what the performance of the target for this type of operation, it would help me to decide if I should invest several times in this or switch to a dedicated NAS.
In addition, one of the things that I suspect a little is the Twonky Media scanning server. I have it turned off, but have not yet restarted to confirm that I am in the middle of a great copy that looks like it's going to be two days. Are there other parameters of Twonky can I disable in order to minimize its impact, or can I disable Twonky completely?
Crossfyre,
If you are looking for a site that compares and reviews the performance of NAS devices on the market, including the Linksys Media Hub Smallnetbuilder.com would be a good starting point.
Try this link.
http://www.SmallNetBuilder.com/component/option, com_nas/Itemid, 190.
You should be able to find what you are looking for on the site.
Keep us informed
Maybe you are looking for
-
This problem just started two days ago. In addition, I can't click on "Settings..." For all of these listed problems, all I get is "loading" at the top of the gmail page.
-
The Windows Setup program has disappeared from my system.
Tried to update Java and make the message that Windows Installer is missing. Checked services.msc and it isn't here. I can't download 4.5 and install due to missing Installer. I can't install or remove any program that requires msi. One knows if
-
This is the number if you wish to contact HP directly to problems or questions. 1800-474-6836 You can get upgrades, discounts, replacements, troubleshooting and much more. Please do not hesitate to contact HP.
-
Need help to activate my windows 7
I have the CD but no product key Diagnostic report (1.9.0019.0):-----------------------------------------Given WGA-->Validation status: invalid licenseValidation code: 50 Code of Validation caching: 0x0Windows product key: *-* - 788W3 - H689G-6P6GTTh
-
Driver power state failure BSOD in Windows 7 Professional (64 bit)
The dump for this stop file is on OneDrive at: https://onedrive.live.com/redir?resid=26431A6C4389BE38%21525. It is the third time I've encountered this problem on this computer, an HP Omni 200, Intel Core I3, 6 GB ram 64 bit. I would appreciate help