Re: dell 1650 perc3/di raid 5 15k rpm performance
On Sun, 23 Mar 2003 00:29, Doug Griswold wrote: > I used the same filesystem type and mount options. It's a very > perplexing issue, I've always seen better performance out of debian over > red hat. But my experience on scsi raid is very limited. mke2fs has options to tune the file system for the RAID setup. Maybe the pre-load of RH had used these options and your installation of Debian didn't? -- http://www.coker.com.au/selinux/ My NSA Security Enhanced Linux packages http://www.coker.com.au/bonnie++/ Bonnie++ hard drive benchmark http://www.coker.com.au/postal/Postal SMTP/POP benchmark http://www.coker.com.au/~russell/ My home page
Re: dell 1650 perc3/di raid 5 15k rpm performance
I used the same filesystem type and mount options. It's a very perplexing issue, I've always seen better performance out of debian over red hat. But my experience on scsi raid is very limited. Thanks Again >>> Nathan E Norman <[EMAIL PROTECTED]> 03/22/03 18:07 PM >>> On Sat, Mar 22, 2003 at 05:26:46PM -0500, Doug Griswold wrote: > You are right about the 10 percent hdparm is kinda suckey when it comes > to giving absolute resulte but it will give you a general idea of what > the disks are doing. I didn't reassign the disks when installing > debian, I basically just booted into debian deleted the partitions that > were there from redhat and re-partitioned and then went on with the > install. Apart from driver issues which could be a very real problem, did you use the same filesystem type and mount options? Since you say you re-partitioned I'm assuming you recreated the filesystems as well. -- Nathan Norman - Incanus Networking mailto:[EMAIL PROTECTED] For myself, I can only say that I am astonished and somewhat terrified at the results of this evening's experiments. Astonished at the wonderful power you have developed, and terrified at the thought that so much hideous and bad music may be put on record forever. -- Sir Arthur Sullivan, message to Edison, 1888 -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
Re: dell 1650 perc3/di raid 5 15k rpm performance
On Sat, Mar 22, 2003 at 05:26:46PM -0500, Doug Griswold wrote: > You are right about the 10 percent hdparm is kinda suckey when it comes > to giving absolute resulte but it will give you a general idea of what > the disks are doing. I didn't reassign the disks when installing > debian, I basically just booted into debian deleted the partitions that > were there from redhat and re-partitioned and then went on with the > install. Apart from driver issues which could be a very real problem, did you use the same filesystem type and mount options? Since you say you re-partitioned I'm assuming you recreated the filesystems as well. -- Nathan Norman - Incanus Networking mailto:[EMAIL PROTECTED] For myself, I can only say that I am astonished and somewhat terrified at the results of this evening's experiments. Astonished at the wonderful power you have developed, and terrified at the thought that so much hideous and bad music may be put on record forever. -- Sir Arthur Sullivan, message to Edison, 1888
Re: dell 1650 perc3/di raid 5 15k rpm performance
You are right about the 10 percent hdparm is kinda suckey when it comes to giving absolute resulte but it will give you a general idea of what the disks are doing. I didn't reassign the disks when installing debian, I basically just booted into debian deleted the partitions that were there from redhat and re-partitioned and then went on with the install. >>> Russell Coker <[EMAIL PROTECTED]> 03/22/03 15:37 PM >>> On Sat, 22 Mar 2003 17:41, Doug Griswold wrote: > I installed the Red Hat kernel and performance was affected some but not > much. I now get between 50-56Mb/s but still not close to the 70Mb/s of > before. Is hdparm accurate enough to determine a <10% difference? I suspect that your results so far don't show an improvement from the RH kernel. > I'm not sure what you mean here "Also did you > re-create the RAID device in the process of installing Debian?" if you > could explain this to me a little more that would be good. I really Re-assigning the disks to a RAID device. -- http://www.coker.com.au/selinux/ My NSA Security Enhanced Linux packages http://www.coker.com.au/bonnie++/ Bonnie++ hard drive benchmark http://www.coker.com.au/postal/Postal SMTP/POP benchmark http://www.coker.com.au/~russell/ My home page -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
Re: dell 1650 perc3/di raid 5 15k rpm performance
On Sun, 23 Mar 2003 00:29, Doug Griswold wrote: > I used the same filesystem type and mount options. It's a very > perplexing issue, I've always seen better performance out of debian over > red hat. But my experience on scsi raid is very limited. mke2fs has options to tune the file system for the RAID setup. Maybe the pre-load of RH had used these options and your installation of Debian didn't? -- http://www.coker.com.au/selinux/ My NSA Security Enhanced Linux packages http://www.coker.com.au/bonnie++/ Bonnie++ hard drive benchmark http://www.coker.com.au/postal/Postal SMTP/POP benchmark http://www.coker.com.au/~russell/ My home page -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
Re: dell 1650 perc3/di raid 5 15k rpm performance
I used the same filesystem type and mount options. It's a very perplexing issue, I've always seen better performance out of debian over red hat. But my experience on scsi raid is very limited. Thanks Again >>> Nathan E Norman <[EMAIL PROTECTED]> 03/22/03 18:07 PM >>> On Sat, Mar 22, 2003 at 05:26:46PM -0500, Doug Griswold wrote: > You are right about the 10 percent hdparm is kinda suckey when it comes > to giving absolute resulte but it will give you a general idea of what > the disks are doing. I didn't reassign the disks when installing > debian, I basically just booted into debian deleted the partitions that > were there from redhat and re-partitioned and then went on with the > install. Apart from driver issues which could be a very real problem, did you use the same filesystem type and mount options? Since you say you re-partitioned I'm assuming you recreated the filesystems as well. -- Nathan Norman - Incanus Networking mailto:[EMAIL PROTECTED] For myself, I can only say that I am astonished and somewhat terrified at the results of this evening's experiments. Astonished at the wonderful power you have developed, and terrified at the thought that so much hideous and bad music may be put on record forever. -- Sir Arthur Sullivan, message to Edison, 1888 -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED] -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
Re: dell 1650 perc3/di raid 5 15k rpm performance
On Sat, Mar 22, 2003 at 05:26:46PM -0500, Doug Griswold wrote: > You are right about the 10 percent hdparm is kinda suckey when it comes > to giving absolute resulte but it will give you a general idea of what > the disks are doing. I didn't reassign the disks when installing > debian, I basically just booted into debian deleted the partitions that > were there from redhat and re-partitioned and then went on with the > install. Apart from driver issues which could be a very real problem, did you use the same filesystem type and mount options? Since you say you re-partitioned I'm assuming you recreated the filesystems as well. -- Nathan Norman - Incanus Networking mailto:[EMAIL PROTECTED] For myself, I can only say that I am astonished and somewhat terrified at the results of this evening's experiments. Astonished at the wonderful power you have developed, and terrified at the thought that so much hideous and bad music may be put on record forever. -- Sir Arthur Sullivan, message to Edison, 1888 -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
Re: dell 1650 perc3/di raid 5 15k rpm performance
You are right about the 10 percent hdparm is kinda suckey when it comes to giving absolute resulte but it will give you a general idea of what the disks are doing. I didn't reassign the disks when installing debian, I basically just booted into debian deleted the partitions that were there from redhat and re-partitioned and then went on with the install. >>> Russell Coker <[EMAIL PROTECTED]> 03/22/03 15:37 PM >>> On Sat, 22 Mar 2003 17:41, Doug Griswold wrote: > I installed the Red Hat kernel and performance was affected some but not > much. I now get between 50-56Mb/s but still not close to the 70Mb/s of > before. Is hdparm accurate enough to determine a <10% difference? I suspect that your results so far don't show an improvement from the RH kernel. > I'm not sure what you mean here "Also did you > re-create the RAID device in the process of installing Debian?" if you > could explain this to me a little more that would be good. I really Re-assigning the disks to a RAID device. -- http://www.coker.com.au/selinux/ My NSA Security Enhanced Linux packages http://www.coker.com.au/bonnie++/ Bonnie++ hard drive benchmark http://www.coker.com.au/postal/Postal SMTP/POP benchmark http://www.coker.com.au/~russell/ My home page -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED] -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
Re: dell 1650 perc3/di raid 5 15k rpm performance
On Sat, 22 Mar 2003 17:41, Doug Griswold wrote: > I installed the Red Hat kernel and performance was affected some but not > much. I now get between 50-56Mb/s but still not close to the 70Mb/s of > before. Is hdparm accurate enough to determine a <10% difference? I suspect that your results so far don't show an improvement from the RH kernel. > I'm not sure what you mean here "Also did you > re-create the RAID device in the process of installing Debian?" if you > could explain this to me a little more that would be good. I really Re-assigning the disks to a RAID device. -- http://www.coker.com.au/selinux/ My NSA Security Enhanced Linux packages http://www.coker.com.au/bonnie++/ Bonnie++ hard drive benchmark http://www.coker.com.au/postal/Postal SMTP/POP benchmark http://www.coker.com.au/~russell/ My home page
Re: dell 1650 perc3/di raid 5 15k rpm performance
On Sat, 22 Mar 2003 17:41, Doug Griswold wrote: > I installed the Red Hat kernel and performance was affected some but not > much. I now get between 50-56Mb/s but still not close to the 70Mb/s of > before. Is hdparm accurate enough to determine a <10% difference? I suspect that your results so far don't show an improvement from the RH kernel. > I'm not sure what you mean here "Also did you > re-create the RAID device in the process of installing Debian?" if you > could explain this to me a little more that would be good. I really Re-assigning the disks to a RAID device. -- http://www.coker.com.au/selinux/ My NSA Security Enhanced Linux packages http://www.coker.com.au/bonnie++/ Bonnie++ hard drive benchmark http://www.coker.com.au/postal/Postal SMTP/POP benchmark http://www.coker.com.au/~russell/ My home page -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
Re: dell 1650 perc3/di raid 5 15k rpm performance
I installed the Red Hat kernel and performance was affected some but not much. I now get between 50-56Mb/s but still not close to the 70Mb/s of before. I'm not sure what you mean here "Also did you re-create the RAID device in the process of installing Debian?" if you could explain this to me a little more that would be good. I really like Debian and would like to be able to use it on everything so I need to learn how to optimize this box so it will run as good or better than red hat. Thanks >>> Russell Coker <[EMAIL PROTECTED]> 03/22/03 05:45 AM >>> On Sat, 22 Mar 2003 04:54, Doug Griswold wrote: > Hey guys I am having a small performance problem with a dell 1650 with > the perc3/di raid 5 card. I had red hat on this box and was getting > 70-75Mb/s when testing with hdparm -tT /dev/sda. I suggest using anything other than hdparm for benchmarking. > Now using Debian I am > getting 40-50Mb/s. I am using the 2.4.19-ac4 kernel and aacraid module. > I'm sure it is a tuning issue on my part but can't seem to figure it > out. If any of you have any experience with this controller I would > appreciate the help. Try using the Red Hat kernel on Debian and see how it goes. Also did you re-create the RAID device in the process of installing Debian? -- http://www.coker.com.au/selinux/ My NSA Security Enhanced Linux packages http://www.coker.com.au/bonnie++/ Bonnie++ hard drive benchmark http://www.coker.com.au/postal/Postal SMTP/POP benchmark http://www.coker.com.au/~russell/ My home page -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
Re: dell 1650 perc3/di raid 5 15k rpm performance
I installed the Red Hat kernel and performance was affected some but not much. I now get between 50-56Mb/s but still not close to the 70Mb/s of before. I'm not sure what you mean here "Also did you re-create the RAID device in the process of installing Debian?" if you could explain this to me a little more that would be good. I really like Debian and would like to be able to use it on everything so I need to learn how to optimize this box so it will run as good or better than red hat. Thanks >>> Russell Coker <[EMAIL PROTECTED]> 03/22/03 05:45 AM >>> On Sat, 22 Mar 2003 04:54, Doug Griswold wrote: > Hey guys I am having a small performance problem with a dell 1650 with > the perc3/di raid 5 card. I had red hat on this box and was getting > 70-75Mb/s when testing with hdparm -tT /dev/sda. I suggest using anything other than hdparm for benchmarking. > Now using Debian I am > getting 40-50Mb/s. I am using the 2.4.19-ac4 kernel and aacraid module. > I'm sure it is a tuning issue on my part but can't seem to figure it > out. If any of you have any experience with this controller I would > appreciate the help. Try using the Red Hat kernel on Debian and see how it goes. Also did you re-create the RAID device in the process of installing Debian? -- http://www.coker.com.au/selinux/ My NSA Security Enhanced Linux packages http://www.coker.com.au/bonnie++/ Bonnie++ hard drive benchmark http://www.coker.com.au/postal/Postal SMTP/POP benchmark http://www.coker.com.au/~russell/ My home page -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED] -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
