This is a discussion on Slow DTS Performance within the SQL Server Data Warehousing forums, part of the Microsoft SQL Server category; --> Hi, I wonder how can I diagnose where is the bootleneck of my system. DTS are running very slow ...
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| Hi, I wonder how can I diagnose where is the bootleneck of my system. DTS are running very slow as there is CPU usage about 20% and Avg. disk queue about 100% all the time. Is this mean that disks are too slow ? Is there any possibility to do some memory tuning ? regards Peter |
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| I presume you talk about a bulk insert data movement? if yes, do you have indexes in the target table? how many disks have you and what is the Raid level (if any)? how many rows and memory do you have? how many rows by seconds are inserted? (bulk insert performance counter) "Piotr" <hokah@wp.pl> wrote in message news:1156491355.198100.285940@i3g2000cwc.googlegro ups.com... > Hi, > I wonder how can I diagnose where is the bootleneck of my system. > DTS are running very slow as there is CPU usage about 20% and Avg. disk > queue about 100% all the time. > Is this mean that disks are too slow ? > Is there any possibility to do some memory tuning ? > > regards > Peter > |
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| another question, does your input is a query or a table? if its a query, does this query is a complex one? (with multplie joins and other calculations) the problem can come from the source and not the destination. if the query is complex, then reading the result from the source can be slower then expected. "Jéjé" <willgart_A_@hotmail_A_.com> wrote in message news:OaAudGFyGHA.4232@TK2MSFTNGP05.phx.gbl... >I presume you talk about a bulk insert data movement? > if yes, do you have indexes in the target table? > how many disks have you and what is the Raid level (if any)? > how many rows and memory do you have? > how many rows by seconds are inserted? (bulk insert performance counter) > > "Piotr" <hokah@wp.pl> wrote in message > news:1156491355.198100.285940@i3g2000cwc.googlegro ups.com... >> Hi, >> I wonder how can I diagnose where is the bootleneck of my system. >> DTS are running very slow as there is CPU usage about 20% and Avg. disk >> queue about 100% all the time. >> Is this mean that disks are too slow ? >> Is there any possibility to do some memory tuning ? >> >> regards >> Peter >> > > |
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| Piotr wrote: > Hi, > I wonder how can I diagnose where is the bootleneck of my system. > DTS are running very slow as there is CPU usage about 20% and Avg. disk > queue about 100% all the time. If it is not already done, try to set the database recovery model to Bulk Insert instead of Full. > Is this mean that disks are too slow ? Fire up the Performance Monitor in Windows and have a look at the I/O counters. > Is there any possibility to do some memory tuning ? You must first find out if memory is an issue. Again try the Performance Monitor. |