How many parallel queries?

We are planing to install Ultra Search on Linux SUSE 8.1 with
Oracle Webserver : APACHE
ca.30 GB , gigabit ethernet ,
3GB RAM
searchengine: ORACLE ULTRA SEARCH
we have ca 10.000 users, who are interested to search on our webserver
9iAs , the index-database and the crawler will be installed on the same machine.
Ist it possible to answer in general :
How many parallel queries Ultra Search enables?

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How many parallel servers should I use?

Hello All,
I am in 10g and would like to create table as select. I am using NOLOGGING and PARALLEL. I notice, as I go on increasing the number of parallel servers, I cost of my statement reduces.
create table tmp_xyz NOLOGGING PARALLEL 12 as
SELECT ...
from ...
value of PARALLEL_min_SERVERS and PARALLEL_MAX_SERVERS parallel servers is 0 and 240 respectively.
I am doing this for a large data table migration; no user be working at the time.
I wonder how many parallel processes I should use?
Regards

Mosaq wrote:
I wonder how many parallel processes I should use? Each parallel process is used for doing I/O - the I/O load is what is parallelised. Each PX slave gets an I/O load (usually a rowid range that describes a range of physical row-on-disk addresses) to process.
So your question boils down to what the I/O capacity is of the I/O subsystem on that server. And this is pretty unique to a server and depends on just how the I/O layer looks like.

How many parallel BPEL child processes can be invoked on single BPEL server

Hi,
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How many parallel threads

Can any of you point to a query to show how many parallel threads are being used by a specific OSUSER. A load runner test is being done and the application server issues a set of dmls to an Oracle database. The v$session table shows all the sessions associated with the (application server) osuser have status 'INACTIVE'. Does it mean that none of the dmls are being executing? Which other data dictionary tables/views do I need to join to v$session to get a correct picture of the parallel threads being used.
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Yuri_IL
You need to download the 488.2 driver. Make sure that you include the support for .NET framework. You specify this during the installation.
NI-488.2 3.1.1
http://www.ni.com/download/ni-488.2-3.1.1/3786/en/
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NI-488.2 for Windows, Version 3.1.1 Readme
http://ftp.ni.com/support/softlib/gpib/Windows/3.1.1/ReadMe.html
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www.ni.com/pdf/manuals/370428f.pdf
http://www.ni.com/pdf/manuals/370428f.pdf
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How Many Parallel Slaves used in past for a module

11.1.0.7 on RHEL 5.4
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Means, you want to get the history of parallel slaves used in last 3 days right ?
If think you may get little information from this link.
It will open page No. 471. Just read from page 471 to 473. It will provide some light on your question.
Regards
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I have a report with 2 queries and prompts on same object tell me how many times it request for I/P?

Hi
i have a report with 2 queries and prompts on same object tell me how many times it request for I/P? can any one please guide me.
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How many DATALOADER instances in parallel ?

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How many HACR can run in parallel in SAP BW 3.5 and 7.X?

Hi Experts,
I have a question that How many HACR/attribute change run can run in parallel in SAP BW 3.5 and 7.X?
I know in SAP BW 3.5 only one ACR job can run and if we start any will be failed due to lock issues. On other hand, I also noticed in SAP BW 7.3, there are more than one HACR job running in parallel without lock issue.
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Hi Bharath,
I' am not sure but I' am sharing what I think
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How to detect sessions that are currently running parallel queries?

Hi everyone,
How to detect session that are currently running parallel queries?
- The only way i can think of is querying pdml_Status from gv$session?
- Is there a better way to do this?
Follow up question:
After detecting sessions that are running parallel queries how do i identify which sessions are slaves of which session?
thanks!

Start with V$PX_SESSION, however also take a look at V$PQ_* and V$PX_* tables.

Parallel How many times user can login to the SAP system through ITS

Hello all
We are using the ITS ---620 and following 46D R/3 system
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kernel release :46D
O/S :SunOS 5.8 Generic_108528-05 sun4us
We would like to now, At a time How many times user can login to the SAP system through ITS
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Transaction SITSPMON/SMICM are not working in R/3 system as it is 46D.
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System logons using the Internet Transaction Server (ITS) or Remote Function Call (RFC) are not affected by this Parameter u201Clogin/disable_multi_gui_loginu201D
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I have searched all docs and notes.
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At max how many columns is advisable to create in a table/view

Hi All,
I have two transaction table from which i want to create a simple view or materialized view. But the number of columns is about 200. So i want to know at max how many columns is advisable from the performance point of view.
Even though i will create 200 columns in a view , for a perticular client installation i may not use all the columns.
one more thing i will never use 200 columns in the select statement . At a time i will use only 4/5 columns.
It may happen from this four column one column will be the 1st and 2nd column will be the 200th one.
I want to know how it affects the performance and in which scenario . Please help if any body knows or already faced this kind of scenario.
I am using oracle 10g .

Annapurna Nayak wrote:
thanks for ur reply .
We are going to use this view in a report , so if i will create it as simple view it will affect report performance. because the view script is too long ...so every time quring to a view will decrease the performance.
Are you asking me if it will? I think it probably won't but of course you have the means to test it to be sure, right?
As u said MV should be done with minimum possible column . what can be the maximum column in MV ..??It would be defined by the limits on:
* The maximum number of columns that a table can contain
* The size of the query needed to define the select statement
* Limitations on queries needed to maintain the data
http://download.oracle.com/docs/cd/B19306_01/server.102/b14237/limits003.htm#i288032

Report workload by calculating how many versions of SharePoint list items created in a certain time period

I have a total of 66 SharePoint 2010 lists - yes, 66! - each lists contains between 1500 and 3200 list items. My employees update these various list items throughout their workday. Each update to a list item creates a new version of the list
item. On average each list item will have anywhere from 5 to 10 versions before it is done. I need to create a report that tells me how many list items they've updated in a certain time frame. I have come close but still cannot arrive at
the data I'm looking for.
This is what I have so far:
I've created a report using SQL Report Builder 2008 v3 where I've filtered it to show only items MODIFIED between, for example, Feb1 and Feb28. Of those records, I want the report to tell me how many versions were created during that time
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created 2 versions between Feb1 and Feb28.
However I get the following results using these queries:
If I do a =Sum(Fields!owshiddenversion.Value) in the expression field I get the total versions which is 5
If I do a =Count(Fields!owshiddenversion.Value) in the expression field I get the instance which is 1
Is there a way to count ONLY the number of versions created in a time period? Is there another hidden field in SharePoint that I can use in the expression that will give me results I'm looking for?

Hi Rafael70,
Per my understanding that you have already get all the need fields and informaiton of the updated version of list items and now you want to calculate how many versions of SharePoint list items created in a certain time period, you can't get desired result
using sum and count function, right?
I have tried to tested on my local environment but because I am not clear what is value in the field "owshiddenversion", I assumed you have two datatype parameters (StartDate and EndDate) to help filter the report in a certain time period.
Generally, if you have add the filter correctly, it will filter the correct number's updated version in this time period, I would like you to provide details information as below to help better analysis the requirements:
Could you please provide sample data of the table.
Please provide snapshot of the report structure you have currently designed.
Please try to provide all the expression you have used.
If you still have any problem, please feel free to ask.
Regards,
Vicky Liu
Vicky Liu
TechNet Community Support

How to know how many users uses Report Designer?

Dear Experts,
Somebody knows if it's possible to know how many users have made look ups in Report Designer on one period or how many modifications?
Thanks in advance.

Hi,
If the cube is checked for Statistics, there is a option settings for BI Statistics under tools, then all the user related info is stored in Techincal Content Cubes. Based on TCT(technical Content Cubes), you need to create a report based on the requirement. From then we can know user log info for the particular queries.
Hope this helped you
Thanks
PT

How many cpus on server are allocated to client

hello,
its not an issue rather doubt which is hunting me from last 2-3 days.
My 10gR2 Oracle database running on
Widows server 2008 R2 Enterprise
Processor ----> intel Xeon cpu [email protected] GHz (4 processor)
RAM------>8GB
its a dedicated server.
Actually i was going through the AWR report whn one of the client came to me with slow database performance during some time interval.
when i had a look at the Top 5 Timed Events in Report it showed me the
Sql*net message from client      834.35si told them to run their query so that i can have trace of that.
then time event showed me something nearer to above and our database was taking only 15 sec to carry out the task.
i told them that
"you application/client is taking 834 sec to tell our database to do something.But once the database got your application's request to carry out something, the database is taking only 15 sec to provide you with the result"
so they asked me to justify that the problem is with application side/machine side.
After digging in a lot on the internet ground, chatting with my colleges on cell phone and running through many threads specially Asktom.oracle.com, i got really confused.
They came up with varied opinions which kept me thinking again & again over the same thing.
In one of his(Thomas kyte) thread the discussion was as follows.
The output of tkprof when the developers run the same program on their PC shows a big difference in
SQL*Net message from client.
The SQL*Net message from client from my tkprof is almost 4-5 times theirs.
Could you please advise what might be the cause of that?
Thanks
Followup   August 25, 2009 - 9am Central time zone:
that could mean.....
your machine is slow (their desktop cpus blow your server cpus away) as much as anything.
since their code is not instrumented, try SQL*Net trace (with TIMESTAMPS) can be helpful to check out the time in the network between the client and server. See Note 16658.1 - see if you experience radically different response times on the various machines.
4 stars   August 25, 2009 - 2pm Central time zone
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Reviewer: Jaklin Ekdawi
My Database server is T5120 with 4 core 1.2 GHz Ultra SPARC T2 processor (from O/S it is seen as 32
CPU * 1.2 GHz).
Their PC has 2 CPU * 4 Ghz.
Based on the above, How come their PC is more powerful than my server?
The ASH Report for the execution period of the program shows ¿CPU + Wait for CPU¿ is the top event,
however, tkprof shows ¿SQL*Net from client¿ is the top event waited on.
Top User Events
Event        Event Class    % Activity    Avg Active Sessions
CPU + Wait for CPU     CPU             81.66        0.14
log file sync             Commit             5.92        0.01
db file scattered read     User I/O     2.37        0.00
Can you please explain why there is a difference between tkprof and ASH report?
Thank You
Followup   August 25, 2009 - 8pm Central time zone:
I only care about a single cpu, your client program is not using more than one.
I often downloaded stuff from my big bad sparc to my desktop because my desktop was many times faster than the sparc.
look further down in the ash report - sqlnet message from client is an idle wait, we tend to ignore it as it is the time we spent WAITING FOR THE CLIENT.
Their pc looks a lot faster than your server since you are only using a single cpu - your client is not multi-process. It only uses a single cpu.
4 stars   August 25, 2009 - 2pm Central time zone
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Reviewer: Jaklin Ekdawi
Sorry, I forgot to say that during the execution time the cpu on the server was 98-99% idle based
on (using top and sar).
Thanks
Followup   August 25, 2009 - 8pm Central time zone:
I agree, because you could not use 31 out of 32 cpus, I would expect it to be almost idle.
97% idle would mean a single cpu was 100% used. So, it sounds like you were using almost 100% of that single cpu you had access to.
and it isn't as fast as their pc.
4 stars   August 25, 2009 - 10pm Central time zone
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Reviewer: Jaklin Ekdawi
The tkprof from the developer's PC is below
OVERALL TOTALS FOR ALL NON-RECURSIVE STATEMENTS
call     count       cpu    elapsed       disk      query    current        rows
Parse      122      0.39       0.68          0        403          0           0
Execute    122      0.00       0.00          0          0          0           0
Fetch      396      0.09       0.11          0      25354          0         274
total      640      0.48       0.80          0      25757          0         274
Misses in library cache during parse: 122
Elapsed times include waiting on following events:
Event waited on                             Times   Max. Wait Total Waited
----------------------------------------   Waited ---------- ------------
SQL*Net message to client                     763        0.00          0.00
SQL*Net message from client                   763       14.71        312.91
SQL*Net more data to client                   122        0.00          0.00
The tkprof for the running the same process on Solaris DB Server
OVERALL TOTALS FOR ALL NON-RECURSIVE STATEMENTS
call     count       cpu    elapsed       disk      query    current        rows
Parse      124      0.06       0.03          0          0          0           0
Execute    124      0.04       0.01          0          0          0           0
Fetch      400      0.07       0.10          0        802          0         276
total      648      0.17       0.15          0        802          0         276
Misses in library cache during parse: 1
Elapsed times include waiting on following events:
Event waited on                             Times   Max. Wait Total Waited
----------------------------------------   Waited ---------- ------------
SQL*Net message to client                     774        0.00          0.00
SQL*Net message from client                   774       43.65        964.23
- On Solaris DB server, the CPU is 0.17, however, "SQL*Net message from client" is 964.23.
- On the developer¿s PC, the CPU is 0.48, however, "SQL*Net message from client" is 312.91.
Based on that, how I can approve it is CPU issue?
Followup   August 26, 2009 - 7pm Central time zone:
how about this.
have the developers write something that mimics what they do without the database in it. Same sorts of loops and processing they do in the code in the client.
run it on their machine
run it on yours
You'll find your big bad server has cpu's that are extremely slow compared to the desktop machine.
Hence - the time spent waiting for sqlnet message from client is - time spent in YOUR client on YOUR server processing the data returned from the database.
saying "the cpu 0.17 on one and 0.48 on the other" is meaningless, they are completely different cpus with completely different performance characteristics.
And that you have 32 of them - no use to you, you use one..
It looks like your server is about 2-3 times slower then their test machine.
5 stars SQL*Net Message from client may not be an issue from the app   May 28, 2010 - 8am Central time zone
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Reviewer: Thierry B from Paris, France
Hi,
I just read your post as I experienced the exact same problem. I found something that fixed this
problem for me, my sqlnet.ora contained that line after an oracle upgrade:
TRACE_LEVEL_CLIENT=16
I don't know how it came there. But it was the cause of my problem (too long idle time). I simply
removed it and no more wait events.
I hope it can be of any help for anyone.
Followup   May 28, 2010 - 8am Central time zone:
that is a client side issue though, isn't it. It is an application side issue, not a database side issue.
5 stars   April 15, 2011 - 10am Central time zone
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Reviewer: A reader in this thread Tom insisted that the client has access to only 1 CPU on the server even though the questioner told him that his machine is having around 32 CPU'S.
so this thread was the source of my confusion.
i kept asking myself "if the client application has access to one cpu out of 32 cpu's on the server on which the database server is running,then What is the use of multiprocessor? my oracle/client application has access to only one cpu on the server(like Tom said), what other 31 cpu's on the server machine are upto?if one cpu is getting exhausted by the client Application request, then what the other processor are doing ? are they not meant for load balancing?"
when i had a chat on cell phone with my colleagues regarding the oracle access to the cpu's on the server, then they told me that if there are more number of cpu's then the the response time would be fast cause workload is divided among the multiple processor to carry out the task in parallel.
Again i got confused with the deferring opinion..
so just want to have clarification on
* how many processes do i have access to on server machine where my oracle is installed?*
how many processes do the client applicaiton S/W/client machine have access to out of 32 processors?
is workload devided among the cpus on the server ,in case of huge request from the client application?
thanks & i hope my doubt would be cleared

Look at it in basic terms (forgetting for the moment about Oracle and SQL*Net and specific s/w itself).
A process is loaded into memory. This process contains machine code instructions. How many CPUs can execute these instructions?
Only 1.
Simplistically. The process has a single execution pointer and set of CPU registers. A single CPU executes the instruction (as indicated by the execution pointer). The registers are used and updated.
The same CPU may not be used each time around. So a single process can during its lifetime, be executed by a number of CPUs. But a single CPU at a time.
A process can thread. This basically means that a second copy of the execution pointer and registers set are created. Each such copy will be executed by by a single CPU at a time.
An Oracle client is serviced by an Oracle server process (either dedicated or shared). On Linux/Unix systems, this will be a unique physical process. On Windows, it will be a unique thread.
This process is executed by a single CPU. Thus that client is serviced by a single CPU.
This changes when Oracle can use parallel processing and there are PX slave processes available. In that case, the client is serviced by a single process - but that process has in turn enlisted the assistance of helper processes. Thus the client is now serviced by multiple processes (or threads on Windows) and thus by multiple CPUs.
However, it is not that simple either. It is "cheaper" for the kernel to run threads on the same CPU than on different CPUs. The reason is the same memory is used by both and access to that memory by different CPUs is more complex (and thus more expensive and slower) than from the same CPU.
So depending on a number of factors, that client may still be serviced by a single CPU despite the fact that PX slaves are used. And from a client process perspective, this does not really matter. The crux of the issue in this regard is the CPU utilisation/footprint of that client process on the server.
If the clock time for a client process says "+running for 60s+" and the server says "+CPU time is 10s+", you cannot say that the process was not serviced by multiple CPUs. You do not know whether than 10s CPU time was for 5 processes each spending 2s to service that client.
However, when the server says "+CPU time is 70s+" - a longer period that the wall clock time of the client, then it is reasonable to assume that multiple server processes (and thus CPUs) are servicing that client process.
As for exactly how many CPUs are in fact used by the server? That has no real bearing on this. It does not change client-server behaviour.
Even Oracle does not know and does not care which CPU is servicing it. The correct piece of s/w to deal with that, is the kernel. Yes, you can bind a thread or process to a specific server CPU, but the reasons for this is quite technical and is always an exception. Let the kernel deal with which CPU to use. It is of no concern to the server s/w (like Oracle), and even less to the client process being serviced by that server s/w.

Have you officially joined BPX? How many people have you invited?

For those who are watching the Business Process Expert "general discussion" forum:
The first question is: Have you officially joined the BPX Community here? 
If so, thank you. You are one of the 8,328 people who have already joined in only the first four weeks of this community being available. Note, too, that we're still in "sneak preview" mode so we haven't even done any announcements or awareness campaigns! You're in on the "ground floor" with visionaries and leaders.
If you're not an official member yet, please join ... just go to the top of the page in the header under "Profile Management," see the category for "Update Profile," and check the box at the very bottom of that page that says "I would like to join the new Business Process Expert (BPX) Community." Of course it's free and you get the benefits of posting forum questions and answers, blogging, etc. etc.
Please also sign-up for the newsletter while you're already on that page. More than 100,000 people already subscribe and find it valuable. We send a newsletter approximately every two weeks to highlight just a few of the new items and topics -- mostly as a reminder to return to the online community area(s) if you're not already in the good habit of doing so.
Second question is: How many people have you referred to this new community with the recommendation to join?
If you've invited at least three people who have joined, then "thank you!" If they are new members of BPX and SDN (and if they used your name/email as a referrer when they joined), then you received award points as our thanks.
If you haven't yet invited at least three colleagues to join, please do so. We think it'll help them in their jobs and careers, and we think it'll help you in your work with them (they're smarter, better informed, on the same page with their colleagues -- including you...).
Thank you for your membership, participation, and for spreading the word.
Mark Y.

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How many parallel queries?

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