Calculate transaction per second

Dear Friends ,
I have run the Oracle 10g with AIX unix server . I want to know "How many Transaction is occured per minute or second" in PEAK hour into my production server . How can I find it ? Give me some suggestions plz ... ..

An Oracle "transaction" isn't the same as Business "transaction". If you are getting "transactions per second" to report to management (even if it is IT management), you better be sure you identify which transactions you are counting.
If I run a PLSQL loop that does
loop 1 to 1000
insert into table ...
commit ;
end loopI get 1,000 "transactions" and 1000 INSERT "executions" being reported by Oracle.
On the other hand if I run
loop 1 to 1000
insert into table ...
end loop
commit;I get only 1 "transaction" and 1000 INSERT "executions" being reported by Oracle.
Next, if I run
insert into table ... select ... 1000 rows ..
commit;I get 1 "transaction" and 1 INSERT "execution".
Any database application will have a mix of "transactions" of different sizes being executed by different users / application server processes / clients.
If you take the aggregate "transactions" count you are going to be sorely disappointed and disappointing your managers !

Similar Messages

Monitor Transactions Per second

Some times I see my SQL Server is running less than 2000 Transactions per second (from the "Transactions /sec" Perfmon counter) and some times I see there are 17000 Transactions per second.
If I want to find out which application is executing these transactions or which query is executing these transactions, is there a way to find this out?

If its a prod and a busy server, running the profiler *for few hours* wont be a good idea. You may opt to run the sever side traces with only specific events.
http://msdn.microsoft.com/en-us/library/cc293613.aspx
If you are using SQL server 2012 you can use extended events
http://msdn.microsoft.com/en-IN/library/bb630282.aspx
Satheesh
My Blog |
How to ask questions in technical forum

Control the transaction per second ( TPS ) to down stream system through Oracle SOA

Hi,
As part of our business flow, BPEL calling down stream system via OSB.
However the down stream system can accept only 5 request per second.
1. Tried implementing DB poller to invoke down stream system each second with 5 records.
The flow is as follows .
DB --> Poller --> ParentBPEL --> Down Stream System
In this case Poller can able to poll 5 records from DB and push it to "DownStreamSystem" via "ParentBPEL" process.
But here the contraint is , the "DownStreamSystem" strickly can able to process only 5 requests per second.
If the "DownStreamSystem" is processed 4 request and processing 1 request at first second, then in the next second the fusion should push only 4 request . Since the number records in processing state should be 5 at a time.
Please help me out to solve this scenario or suggest me if there is any other alternative to achieve the solution.
Thanks in Advance ...

maybe throttling in the osb is of any help ?
Throttling
since you really have hard specs on the "currently processed messages" you could add some coherence cache and use that as sort of lookup to see what messages are getting processed at which time. (it's just some guessing, since i don't have any experience with the situation you're describing)

Transaction per second report

Hi All,
Anyone has a quick solution to generate report for transaction/sec?
I have many transactions defined in .web test. During load test, the transaction table doesn't show me transaction/sec details.
I know this detail is captured, as I can add this to a graph by dragging down the transactions.
I have 20+ transactions and manually dragging this to a graph and then exporting to excel is killing time,...
I am not so much used to the load test database reference...Appreciate, if anyone of you can give me a best possible solution. Thanks!!

Hi Shiv_p,
The better workaround is that you could read the data from the load test database, or a way as you have achieved it, export the result to excel after you add it manually to the graph.
In the summery, it seems that it just shared the simple result like transactions/sec
If they are not the workarounds you want to get, maybe you could submit a feature request here:
http://visualstudio.uservoice.com/forums/121579-visual-studio.
The Visual Studio product team is listening to user voice there. You can send
your idea there and people can vote.
Best Regards,
Jack
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Transactions per second

Whats it the maximum TPS we can achieve in Biztalk ?

Hi Tare,
There is no standard answer to this question. Because there are many components which play a role in processing.
Depending on the combination of the BizTalk components (Orchestration, Messaging, custom components, etc) and hardware, the processing time varies.
So it depends, on whether you are dealing with large size message, if it is messaging only or orchestration is involved, the processor and Ram etc.
For me, I have seen upto 500 messages in a second but again it depends. To find out you can go ahead and do stress/load testing of your application.
Maheshkumar
S Tiwari|User
Page|Blog|BizTalk
Server: Multiple XML files to Single FlatFile Using File Adapter

Transaction Rate Per Second

How can I determine the transaction rate per second for my database? I found the following script:
SELECT SUM(s.value/
(86400*(SYSDATE - TO_DATE(i.VALUE,'J')))) "tps"
FROM V$SYSSTAT s, V$INSTANCE i
WHERE s.NAME in ('user commits','transaction rollbacks')
AND i.KEY = 'STARTUP TIME - JULIAN' ---
But - I don't know where the "86400" value came from? Does anyone have any insight? - or a valid script to determine the tps (transaction rate per second)? Thanks

Dianne,
There are 86400 seconds in a day. The query you are using divides all commits and rollback transactions by the time the system has been up and running in seconds. Hence, transactions per second...... tps.....
Hope this is an accurate response.
Adam
<BLOCKQUOTE><font size="1" face="Verdana, Arial">quote:</font><HR>Originally posted by Dianne Jones ([email protected]):
How can I determine the transaction rate per second for my database? I found the following script:
SELECT SUM(s.value/
(86400*(SYSDATE - TO_DATE(i.VALUE,'J')))) "tps"
FROM V$SYSSTAT s, V$INSTANCE i
WHERE s.NAME in ('user commits','transaction rollbacks')
AND i.KEY = 'STARTUP TIME - JULIAN' ---
But - I don't know where the "86400" value came from? Does anyone have any insight? - or a valid script to determine the tps (transaction rate per second)? Thanks <HR></BLOCKQUOTE>
null

Calculating Frames Per Second Accurately

I tried searching the forums for suggestions or code used to calculate FPS accurately... But was ultimately unsuccessful.
I think I have a pretty basic understanding of how it works... but I'm still left wondering if there's a better... or correct way of attacking the problem.
What I started out doing is taken a pre-cycle time sample using System's currentTimeMillis method, followed by the main parts I'm executing in my program and then took a second time sample. I subtracted the post-cycle from the pre-cycle to get the time... and it occurred to me that the currentTimeMillis is not exactly reliable. As it says in the API, "For example, many operating systems measure time in units of tens of milliseconds," when discussing that method.
I then noticed the nanoTime method and decided to use that.
It quite honestly seems to work perfectly for what I'm trying to accomplish.
I pretty much used the same steps as before.
But now my problem is that I want to limit the amount of frames per second to 60.
I decided that I should try using the Thread class's sleep(long millis, int nanos) method.
It seemed like it would work... but to my dismay, it did not.
The milliseconds, for the most part, were correctly timed... but still not always. The nanoseconds even less so... but I knew that the nanoseconds would be less reliable-I decided to use microseconds. Using microseconds doesn't even work that well.
So I wondered if there was an even better way... maybe a more 'manual' approach to fixing my problem.
I would greatly appreciate any input/knowledge on the matter.

its quite simple. Windows has an API call that can set the timer precision (its all based on some interrupt interval - I forgot the precise details). This precision is system wide, so if one application does it it is immediately active for all other applications running at that time. Applications can only lower it, so if you set it to 1ms then some other application cannot force it to 5ms for example.
Now here comes JVM bug number two.
As said the interval differs per system - sometimes it is 10ms, sometimes it is 15ms. The JVM wrongfully assumes it is always 10ms however. Do a test: try to sleep for some time that is a multiple of 10 (without the long running thread hack active); you'll find that the precision still sucks. That is because in this specific case the JVM does NOT change the system wide timing precision. But if you sleep for any number of milliseconds that is not a multiple of 10 it will actually temporarily set the precision to 1ms.
So the rule is: as long as one thread goes to sleep the precision is set to 1ms. When the last sleeping thread wakes up, it is reset to what it was. Then it also doesn't matter for what amount of time you make your real thread sleep as the long sleeping thread will not be sleeping for an amount that is a multiple of 10, thus forcing the precision to 1ms.
Now say that you don't do the long sleeping thread hack and you make your own thread sleep for say 9ms, switching to 1ms precision temporarily. This behavior makes it so that sampling the passed time (before and after sleeping) can be imprecise; you'll find that most of the time you'll get sampling that matches the number of milliseconds you slept and sometimes it jumps to 10/15ms depending on the granularity of your system. This is a concurrency problem; sometimes the precision is reset before you get a chance to sample the current time.
So to recap to give 100% accuracy with System.currentTimeInMillis(), you need to keep a thread sleeping at all time so the precision stays at 1ms.
And then finally we come to bug #3, which is a problem in Windows itself: rapidly changing the precision (which happens when you make a single thread sleep for short intervals) can screw with the system clock. I don't know if this problem still exists in later iterations of Windows, but it is again a reason to do the long sleeping thread hack. Because this is a known issue I still call this a bug in the JVM because of the way they implemented the precision timer activation, which can trigger the problem in Windows. The command line switch mentioned in the above bug report SHOULD have fixed that... but you know, facepalm bug #4.
But at the end of the day: even if at least 4 bugs can be named regarding precise timing in Java under Windows, the root of all evil is still the way timing is implemented in Windows itself making life too difficult for the poor JVM devs. What were the MS devs thinking at the time?

Pages Per Second, User Modes

What is being recorded in the Pages per second metrics, is it:
1) The DOWNLOAD and (emulated) RENDERING of the page with its attributes/objects (pages, images, frames etc)
OR
2) Just the DOWNLOAD of the page with its attributes/objects.
Does this change between User Modes i.e. Thick and Thin Client

Hi Paul,
A page is the eTester representation of what would be a web page in terms of navigations and actions that are performed in the web browser after the document is completely rendered and before the last transition.
Open the navigation editor and take a look at the Navigations tree. There it can be seen how the pages are divided. Each page will have between 0 to multiple navigations. Pages with zero navigations doesn't count, these pages won't even be shown in the report. If the page have frames the page will show more than one navigation. If the web application uses ajax or a similar technology with http transactions, or if the page uses java applets, flash objects or activex controls that makes http transactions and the proxy recorder was On, then the pages most likely will show more than one navigation.
eLoad will request all the navigations contained in any given page of any script in your load test scenario, if the web server will responds back successfuly for all the navigations, then this is counted as one page received. eLoad willl be requesting multiple pages from the different scripts that exists in the scenario submitted then it will count how many of those pages are being received in an interval of time, then makes a units convertion of the time interval in order to display it in seconds.
The pages received per second is the average of how many pages with all the navigations contained in it were successfully obtained from the web servers every second.
The pages per second is the same statistic regardless if you are running in thick or in thin.
The pages per second doesn't take into consideration the download of images, scripts, css, or any other object. These are considered in the hits per second.
A similar thread was created earlier:
http://qazone.empirix.com/thread.jspa?threadID=11&tstart=30
The link was inserted here for crossreference if required later.
Regards,
Zuriel

Weird number of disk-transfers per second when in SYNC mode

Hi, I've managed to configure BDB in synchronous mode (i.e., each put is persisted on disk when committing). However, now I'm doing 2000 puts per seconds, each with payload from 10 to 250 kilobytes, yet I'm getting (from iostat) that each disk-transfer is only about 6 kilobytes (because of 23 megabytes written on disk per second, divided by 3750 transfers per second). How is that even possible? Is there a way of telling BDB to minimize the number of disk-transfers per second in SYNC mode? It seems that BDB is breaking each put's payload into smaller pieces, and only then saving to disk in a bunch of disk-transfers.

Hi,
JE does not split up a single write into multiple writes -- and certainly doesn't do an fsync for each one.
JE may do multiple writes (but not fsyncs) for a single, multi-operation txn if the write buffer fills. And it will do multiple writes for a single operation, if the record is larger than the write buffer. However, it doesn't sounds like this (overflowing of the write buffer) is what you're experiencing. In any case, you can configure the size of the JE write buffer with EnvironmentConfig.LOG_TOTAL_BUFFER_BYTES, LOG_NUM_BUFFERS, and LOG_BUFFER_SIZE.
Another thing is that JE will group fsyncs (this is called "group commit") when multiple threads are committing concurrently with SYNC durability. In this case you'll see a smaller number of physical writes than the number of commits.
I asked a colleague who has more experience with iostat than I do about this, and he gave me the following information:
We would expect there to be one sync per put on average, assuming the application is doing serial writes and there are no group commits to further obfuscate the issue. Given the high sync write rate, the writes are presumably to an SSD, or spinning rust with a large non-volatile disk write cache
I'm not sure what he means by disk transactions in iostats. Perhaps he means the number of disk transfer requests issued to the device listed as tps (transfers per sec) in iostat output.
If he is using ext3 and he does not have the file system mounted with noatime, he may be observing write requests to update the file system "atime" metadata with each request. So for 2K sync puts/sec he would see roughly 4K (2k put + 2k atime update) write requests/sec and his average write payload would be ~12KB/transfer (the atime write payload is negligible), which would be consistent with the application's put behavior. This is all a guess.
I hope this helps.
--mark

Console reporting webkit having hundreds of wakeups per second

I have been noticing frequent computer slowdowns on my 2011 MacBook Pro, always fully patched.
Checking Console, I found dozens of reports from Webkit saying things like "140 wake ups per second for 194 seconds"
I think these are related!!! Can someone tell me how to resolve this

Hello Antonio,
This forum is used to discuss and ask questions about .NET Framework Base Classes (BCL) such as Collections, I/O, Regigistry, Globalization, Reflection. Also discuss all the other Microsoft libraries that are built on or extend the .NET Framework, including
Managed Extensibility Framework (MEF), Charting Controls, CardSpace, Windows Identity Foundation (WIF), Point of Sale (POS), Transactions.
It seems your issue is more regarding Web Application issue, I suggest you posting it to:
http://forums.iis.net/1158.aspx
And you can check this article which may be helpful:
http://aspalliance.com/1184_Avoiding_Blocking_Issues_in_ASPNET_Session_State_Databases
Thanks for understanding.
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Calculating value per second

Hi all. I need to just calculate and save the values per second in the variable that how many times per second a variable is being revieved in the method as a parameter and then show that progress as int / second in the progress bar
public void method(int a)
//Want to calculate [integer variable a] coming in the method per second
Thanks n Regards

We used to do this in C by declaring the variable as static... I've not tried it in Java:
public int myMethod(){
static i = 0;
i++;
return i;
}Since the Statics are only initialize at runtile the first line is only done once, not every entry--so you get an entry count.
you can also do this:
public void myMethod(){
myEntryCount++;where you have myEntryCount defined globally with respect to your method--like a class variable.

How to find Transactions per time in 11gr2 ?

In 11gr2, Any sql query, to know the how many transaction per time/second happening?

In 11gr2, Any sql query, to know the how many transaction per time/second happening?count number of COMMIT in REDO log file

Requests per second

Hi all,
I would get or calculate how many requests per second (ReqsPerSec) my WS is doing (average in a period).
I looked at the Admin console monitoring data and at perfdump output.
From console I get AvgReqs in last 15'. Iis it correct to calculate ReqsPerSec = AvgReqs / 900 ?
From perfdump I get average RequestProcessingTime. Is it correct to calculate ReqsPerSec = 1 / RequestProcessingTime ?
Which is the most correct/accurate way to get it?
MTIA

If you really need reqs/second then you can do so by :
a) at time t1, collect perf-dump and get total requests served (say r1)
b) at time t2, collect perf-dump and get total requests served (say r2)
So avg rq/sec = (r2 - r1)/(t2 - t1)
So you can yourself collect rq/sec based on last x minutes (or since the server start).
Just curious what do you want to do with rq/sec?

Degrees per second

I am trying to calculate angle movement in degrees per second on this vi.
I have labview 7.1 and 8.0 using SCXI-1001, SCXI-1102 and SCXI-1303
I have the vi working great and can display the degrees in both rotate and extend.
The sensor that I am using is a 2SA-10 from GMW.
I just can’t seem to figure out how to calculate the DPS in this circuit.
Any help would be appreciated.
Thanks
Antique

Hi Antique,
It sounds like you want to calculate a running average, in which case the Point by Point Mean function in LabVIEW may help. I put together a small example to show how it works. It will take the average of a certain length of numbers (notice how changing the sample length input changes the results). Using this VI with some shift registers to pass values between loop iterations is probably a step in the right direction.
Thanks,
Justin M.
National Instruments
Attachments:
RunningAverage.vi ‏10 KB

How to find the frames-per-second of a Quicktime movie using Applescript?

Is there a way to find out the real-time "frames per second" of a Quicktime movie?
The only Applescript movie properties in Quicktime which I have found to be useful are "duration" and "time scale". The real-time duration of the movie in seconds is found by dividing "duration" by "time scale".
But "time scale" only sometimes relates to any real time property. In some cases it does (2500 = PAL 25 fps, 2997 = NTSC 29.97 fps) but for many other movie types I've opened (DivX, flv, mp4 etc) the "time scale" is often reported as "600" even though the Quicktime movie inspector window will report a frame rate of 25, 29.97, 15 or some other number.
Where does the Quicktime movie inspector window extract the FPS from, and is it possible to extract that same number, or calculate the real-time FPS of a Quicktime movie using Applescript only?
Thanks.

Thanks for this but unfortunately it only works for some movie types. For .dv .flv and .divx movies, this script correctly calculates the FPS. But for .mpg .mp4 and .m4v it does not.
For .mpg movies I tested, the count of frames was always 1, so clearly the FPS calculation is always wrong.
For the .mp4 and .m4v movies I tried, the FPS was always reported as 43, regardless of whether the actual FPS was 25 or 29.97. In all cases the count of frames was incorrect.
A bug in Quicktime?

Calculate transaction per second

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