Search Results

Search found 13341 results on 534 pages for 'obiee performance tuning'.

Page 96/534 | < Previous Page | 92 93 94 95 96 97 98 99 100 101 102 103  | Next Page >

• SQL Server 2008 Insert performance issue

  - by mithiya

  is there any way to increase performance of SQL server inserts, as you can see below i have used below sql 2005, 2008 and oracle. i am moving data from ORACLe to SQL. while inserting data to SQL i am using a procedure. insert to Oracles is very fast in compare to SQL, is there any way increase performance. or a better way to move data from Oracle to SQL (data size approx 100000 records an hour) please find below stats as i gathered, RUN1 and RUN2 time is in millisecond.

  Read the article

• Why is display:inline killing IE 8.0 performance?

  - by monstermensch

  I have an image gallery based on this jQuery plugin: http://jqueryfordesigners.com/demo/slider-gallery.html This works really well in Firefox, Chrome and even IE 7.0, but when I try it with more than 50 images in IE 8.0 the performance is incredible slow. Just hovering over the thumbnail brings the CPU load to 100%. At first I thought it's a Javascript problem, so I used the IE profiler, but the results were normal. Next I checked the CSS and finally found the cause: .sliderGallery UL LI { display: inline; } This gets the thumbnails to align horizontally. If I chance it to display:block, performance is fine and the scroller is still working but obviously it looks funny, because the thumbs are aligned vertically. My questions: Why does IE 8 have this problem with many display:inline elements What can I do to solve it I'll gladly provide more information if necessary.

  Read the article

• iPhone / Cocoa - Are NSThreads less efficient than POSIX threads, or is the diff negligable?

  - by jtrim

  I'm looking at putting together a high-performance multi-threaded iPhone app that's doing a couple of fairly high-intensity operations concurrently. Is the performance difference between NSThread and POSIX threading enough to care about here? If so, I would assume POSIX threads would be more efficient because it bypasses the obj-c overhead. Is this correct?

  Read the article

• Performance of: if (OBJECT_INSTANCE is TYPE)

  - by Axonn

  I am working both in C# and ActionScript 3. Both language are type-aware, so you can do verifications such as: if (some_object_instance is SomeClassName_ThatIs_SomeType) I'm doing these kind of verifications in a few places. Might be a dumb question, but I will ask it anyway, and I want answers from both camps, C# and ActionScript: What goes on behind the scenes? Is it Reflection? If is, isn't this a long verification which might degrade performance if done in thousands of loops? And by "degrade performance" I mean, is it more intensive than say if (Math.sqrt(8) > Math.sin(10))

  Read the article

• Multiple Table Joins to Improve Performance?

  - by EdenMachine

  If I have a table structure like this: Transaction [TransID, ...] Document [DocID, TransID, ...] Signer [SignerID, ...] Signature [SigID, DocID, SignerID, ...] And the business logic is like this: Transactions can have multiple documents Documents can have multiple signatures And the same signer can have multiple signatures in multiple documents within the same transaction So, now to my actual question: If I wanted to find all the documents in a particular transaction, would it be better, performance-wise, if I also stored the TransID and the DocID in the Signer table as well so I have smaller joins. Otherwise, I'd have to join through the Signature Document Transaction Documents to get all the documents in the transaction for that signer. I think it's really messy to have that many relationships in the Signer table though and it doesn't seem "correct" to do it that way (also seems like an update nightmare) but I can see that it might be better performance for direct joins. Thoughts? TIA!

  Read the article

• Does introducing foreign keys to MySQL reduce performance

  - by Tam

  I'm building Ruby on Rails 2.3.5 app. By default, Ruby on Rails doesn't provide foreign key contraints so I have to do it manually. I was wondering if introducing foreign keys reduces query performance on the database side enough to make it not worth doing. Performance in this case is my first priority as I can check for data consistency with code. What is your recommendation in general? do you recommend using foreign keys? and how do you suggest I should measure this?

  Read the article

• Performance overhead of TDE on SQL Server 2008

  - by Raju

  Has anyone used TDE on SQL Server 2008? What are the performance overheads?

  Read the article

• What this phrase "Try to make you architecture more horizontal rather than vertical" means?

  - by Kirzilla

  Hello, I've just listened to http://www.zend.com/webinar/PHP/70170000000bAuS-webinar-php-performance-principles-and-tools-20100218.flv (Zend webinar about PHP performance). I can't understand what this phrase means "Try to make you architecture more horizontal rather than vertical" (see screenshot) Thank you.

  Read the article

• SQL Server Compact Edition 3.5 performance

  - by Wili

  I am using SQL Server CE 3.5 SP1 in one of my client applications. When a user loads the program and starts using it, performance is fine. If the user lets the program sit idle for a while, it takes a considerable amount of time (10 or more seconds) for the program to respond. Every time the user asks for a new screen, a call is made to the SQL CE database to get the data for that screen. It seems like the hard drive may be going to sleep and then when the database is accessed, the hard drive has to wake back up. Is it possible to load the entire database into memory and work from that? Are there any other suggestions on how to increase performance?

  Read the article

• Best Performing ORM for .NET

  - by steve_c

  I'm curious if anyone has done any performance comparisons with any or all of the main players in the .NET ORM space. Specifically I'm interested in comparisons between the following: Linq to SQL NHibernate LLBL Gen Entity Framework Though it seems people don't really consider Linq to SQL a true ORM, I am still including it in this list. Some performance metrics would be nice to see.

  Read the article

• What GC parameters is a JVM running with?

  - by skaffman

  I'm still investigating issues I have with GC tuning (see prior question), which involves lots of reading and experimentation. Sun Java5+ JVMs attempt to automatically select the optimal GC strategy and parameters based on their environment, which is great, but I can't figure out how to query the running JVM to find out what those parameters are. Ideally, I'd like to see what values of the various GC-related -XX options are being used, as selected automatically by the VM. If I had that, I could have a baseline to begin tweaking. Anyone know to recover these values from a running VM?

  Read the article

• performance issue with a website.

  - by pradeep

  Hi, I have a website .. [SPAM LINK REMOVED]. When you see pages like [SPAM LINK REMOVED] and [SPAM LINK REMOVED]. These pages load a bit slowly in FF. Please see if the speed is reasonable or speed needs to improve and in IE 6 it takes ages to load the website. Please let me know what all should i do to increase the performance of website. I tried all the options given by firebug. But nothing much helped. If any1 can let me know where all i should take care to increase the performance it will be very helpful.

  Read the article

• Benchmarks for Single and MultiThreaded programs

  - by user280848

  Hi I am trying to compare the performance of Single and Multithreaded Java programs. Are there any single thread benchmarks which are available which I could then use and convert to their multithreaded version and compare the performance. Could anybody guide me as to what kind of programs(not very small) are suitable for this empirical comparison. Thanks in advance

  Read the article

• Sql serve Full Text Search with Containstable is very slow when Used in JOIN!

  - by Bob

  Hello, I am using sql 2008 full text search and I am having serious issues with performance depending on how I use Contains or ContainsTable. Here are sample: (table one has about 5000 records and there is a covered index on table1 which has all the fields in the where clause. I tried to simplify the statements so forgive me if there is syntax issues.) Scenario 1: select * from table1 as t1 where t1.field1=90 and t1.field2='something' and Exists(select top 1 * from containstable(table1,*, 'something') as t2 where t2.[key]=t1.id) results: 10 second (very slow) Scenario 2: select * from table1 as t1 join containstable(table1,*, 'something') as t2 on t2.[key] = t1.id where t1.field1=90 and t1.field2='something' results: 10 second (very slow) Scenario 3: Declare @tbl Table(id uniqueidentifier primary key) insert into @tbl select {key] from containstable(table1,*, 'something') select * from table1 as t1 where t1.field1=90 and t1.field2='something' and Exists(select id from @tbl as tbl where id=req1.id) results: fraction of a second (super fast) Bottom line, it seems if I use Containstable in any kind of join or where clause condition of a select statement that also has other conditions, the performance is really bad. In addition if you look at profiler, the number of reads from the database goes to the roof. But if I first do the full text search and put results in a table variable and use that variable everything goes super fast. The number of reads are also much lower. It seems in "bad" scenarios, somehow it gets stuck in a loop which causes it to read many times from teh database but of course I don't understant why. Now the question is first of all whyis that happening? and question two is that how scalable table variables are? what if it results to 10s of thousands of records? is it still going to be fast. Any ideas? Thanks

  Read the article

• Webalizer causing high CPU load

  - by Tom

  We use webalizer to generate reports on our Apache access logs - it is useful in conjunction with Google Analytics. The problem is that webalizer uses ALOT of CPU when running. If I run top I can see two perl processes with 90% CPU - this slows down the machine and therefore the website for our users. Webalizer is run via a daily cron job (/etc/cron.daily/00webalizer): #! /bin/bash # update access statistics for the web site if [ -s /var/log/httpd/access_log ]; then exec /usr/bin/webalizer -Q fi Does anyone know how to limit how much CPU webalizer can use? For example, would nice help and how would I use it?

  Read the article

• Spikes of 99% disk activity in Windows 8 Task Manager

  - by Jonathan Chan

  For some reason Windows 8's Task Manager reports spikes of 99% disk activity for hours at a time. Looking at the entries in that column, however, data doesn't seem to be getting written any more quickly than when the disk activity is around 25-50% (which it seem to idle at most of the time). Furthermore, when these 99% disk activity spikes are happening, the average response time reported in the Performance tab becomes 4000-6000ms. Is there a good way to find out what is causing the disk activity? I've tried using Process Explorer, but I said above, the rate at which data is reportedly being written doesn't seem to correspond (Dropbox and Google Chrome are constantly the top two, but the spikes are not dependent on their being open). Thanks in advance for any help. It gets very annoying when the computer stutters to a halt.

  Read the article

• Perfmon - Redirector current command 0 result

  - by Dave

  I'd like to monitor how many SMB connections there are at any given time for my 2008R2 file server, but when I add Redirector/Current Commands in perfmon, I get 0 results. This KB from Microsoft isn't exactly helpful either: http://support.microsoft.com/kb/2523382 It mearly confirms there is an issue, but doesn't provide a work around. How would I go about getting the current number of SMB connections? Thanks for your help in advance.

  Read the article

• Perfmon: which counter identifies that threads are waiting?

  - by frankadelic

  While load testing an ASP.NET app, we find that the pages are taking 20-30 sec under heavy load. We suspect this is because the pages are waiting for database calls or web services. Is there a particular perfmon counter that can identify this sort of bottleneck on the web servers? CPU, Memory, and Disk are normal. Or must we use a tool other than perfmon to track down this bottleneck?

  Read the article

• Benchmarking MySQL on win7

  - by Patrick

  I've setup a nginx server running php 5.3.6 and mysql 5.5.1.3. My computer is an AMD quadcore 9650, 4gb ram, 500gb 7200rpm HD. I ran the PHP MySQL Benchmark Tool v. 0.1, and got the following results: Testing a(n) MYISAM table using 100000 rows. Successfully created database speedtestdb Sucessfully created table speedtesttable Table Type Verified: MYISAM .. Done. 100000 inserts in 19.73628 seconds or 5067 inserts per second. Done. 100000 row reads in 0.2801 seconds or 357015 row reads per second. Done. 100000 updates in 4.03876 seconds or 24760 updates per second. I'm wondering where this stands as far as performance goes, and what are some steps I can take if any to improve on this. I'm not trying to make anything fantastic, just getting a feel for how to best optimize a web server in this configuration.

  Read the article

• COM+/Desktop Heap errors in IIS affecting sites at random?

  - by tresstylez

  We have a Win2K3 server that is hosting 30+ sites. Each site is configured to have its own unique application pool -- so that we can manually recycle specific sites if needed and not kill sessions for the others. From what I've read, the consequence of this type of setup is that each application pool worker process gets allocated a Desktop Heap (normally 512 kb's) and we limit the number of app pools we can serve. http://blogs.msdn.com/b/david.wang/archive/2006/01/25/security-considerations-of-usesharedwpdesktop-on-iis6.aspx PROBLEM: What we're seeing is that occasionally COM+ errors get triggered, presumably by hitting our 512 kb limit of the desktop heap -- and certain sites become unresponsive (or have errors) until we manually recycle that specific app pool. I know that I can increase the desktop heap limit to 1024, and make other tweaks/tunes, but I've been tasked with finding out what exactly causes one site's heap to max out as opposed to another. It seems that when we start seeing COM+ errors, the sites it affects are random -- small sites or big sites (heavier used). Is it based on process id? Traffic? Any pointers on understanding this a little more would be excellent. Thanks! jg

  Read the article

• CORAID using only 1 of the 2 available NICs for AoE traffic

  - by Peter Carrero

  We got 6 CORAID shelves in my workplace. On 2 of them I see AoE traffic on only 1 of the 2 NICs that are attached to the SAN switch. We got jumbo frames enabled on all devices. Both NICs show up when I issue the aoe-interfaces command. This wouldn't bother me too much if the throughput performance observed on the "bad" shelves using bonnie++ wasn't half of the result of the "good" shelves. The "good" shelves are older SR1521 model and they have ReiserFS on their LUNS - not that I think it makes a difference - and the "bad" shelves are newer SR2421 model and have JFS. Any help as to what is going on and how to rectify this would be greatly appreciated. BTW: even the lower performing shelves outperform another iSCSI device we got, but that is another story... Thanks.

  Read the article

• Install 64-bit Ubuntu or 32-bit?

  - by nitbuntu

  I'll be receiving a new notebook in a few days and was planning on running Ubuntu on it as it's compatible and the notebook has no OS pre-installed. The specifications are: Core 2 Duo, T6600, 4 GB RAM, Intel integrated graphics. I know a year or two ago, running a 64-bit version of Ubuntu was not advised due to much of the applications and plugins (e.g. Flash) only running on 32-bit. Is this still the case? Would I get better performance with 64-bit Ubuntu since I have 4 GB of RAM? Are there any downsides anymore?

  Read the article

• eSata plugged into Sata socket via adaptor cable very slow

  - by Jon

  Why would an external eSata Drive (xSonic with 500Gb notebook Hard Drive) run ok on a Silicon Image based PCI-E to eSata adaptor at about 35MB/s, But then run really slow when plugged into NForce4 Sata socket via cable? I have another version of the problem with Really slow 1MB/s!!! performance on a ASUS P5K Pro Motherboard with E8400 CPU. This time the same card is plugged into a PCI-E socket. The same eSata drive is plugged into the Esata port on the card. All this is running on Windows XP Pro 32bit. Any suggestions on how to diagnose the problems??

  Read the article

• Do Seagate Momentus XT SSD Hybrid drives perform better than a good hard drive + flash on ReadyBoost

  - by Chris W. Rea

  Seagate has released a product called the Momentus XT Solid State Hybrid Drive. At a glance, this looks exactly like what Windows ReadyBoost attempts to do with software at the OS level: Pairing the benefits of a large hard drive together with the performance of solid-state flash memory. Does the Momentus XT out-perform a similar ad-hoc pairing of a decent hard drive with similar flash memory storage under Windows ReadyBoost? Other than the obvious "a hardware implementation ought to be faster than a software implementation", why would ReadyBoost not be able to perform as well as such a hybrid device?

  Read the article

• How to monitor current output/receive queue length in Linux

  - by IZhen

  I want to check the capacity and performance of my network. Besides checking the txkB/s and rxkB/s via Sar, I'd also like to see the average queue length of the network interface(so that the average queueing time in the interface can be calculated). It seems that netstat can give a per socket queue length, is it possible to get a per interface statics(a bit like Network Interface\Output Queue Length in Windows)? A related and kind of reverse questions is How do I view the TCP Send and Receive Queue sizes on Windows? Thanks

  Read the article

< Previous Page | 92 93 94 95 96 97 98 99 100 101 102 103  | Next Page >