Samba V3 on zSeries Redpiece
See: http://www.redbooks.ibm.com/redpieces/pdfs/redp3988.pdf This document provides the reader with basic performance rules of thumb for Samba Version 3.0.5 on zSeries Linux and gives background information that can be used in configuring and tuning your Samba V3 environment. The data was developed using an IBM internal workload generator to simulate a heavy transaction load. It identifies the parameters for optimum performance of Samba V3. -- For LINUX-390 subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: Samba V3 on zSeries Redpiece
In conclusions and recommendations, "Our optimal configuration included: 1 MB of Memory " ...? ~ Daniel -Original Message- From: Linux on 390 Port [mailto:[EMAIL PROTECTED] On Behalf Of Ferguson, Neale Sent: Monday, March 21, 2005 8:46 AM To: LINUX-390@VM.MARIST.EDU Subject: Samba V3 on zSeries Redpiece See: http://www.redbooks.ibm.com/redpieces/pdfs/redp3988.pdf This document provides the reader with basic performance rules of thumb for Samba Version 3.0.5 on zSeries Linux and gives background information that can be used in configuring and tuning your Samba V3 environment. The data was developed using an IBM internal workload generator to simulate a heavy transaction load. It identifies the parameters for optimum performance of Samba V3. -- For LINUX-390 subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 -- For LINUX-390 subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: Samba V3 on zSeries Redpiece
Whoa! Cool! That is what I call resource friendly! ;) -Original Message- From: Daniel Jarboe [mailto:[EMAIL PROTECTED] Sent: Monday, March 21, 2005 8:51 AM To: LINUX-390@VM.MARIST.EDU Subject: Re: Samba V3 on zSeries Redpiece In conclusions and recommendations, "Our optimal configuration included: 1 MB of Memory " ...? ~ Daniel -Original Message- From: Linux on 390 Port [mailto:[EMAIL PROTECTED] On Behalf Of Ferguson, Neale Sent: Monday, March 21, 2005 8:46 AM To: LINUX-390@VM.MARIST.EDU Subject: Samba V3 on zSeries Redpiece See: http://www.redbooks.ibm.com/redpieces/pdfs/redp3988.pdf This document provides the reader with basic performance rules of thumb for Samba Version 3.0.5 on zSeries Linux and gives background information that can be used in configuring and tuning your Samba V3 environment. The data was developed using an IBM internal workload generator to simulate a heavy transaction load. It identifies the parameters for optimum performance of Samba V3. -- For LINUX-390 subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 -- For LINUX-390 subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 -- For LINUX-390 subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: Samba V3 on zSeries Redpiece
Our current Samba implementation has a non-striped LVM. Theres the obvious performance penalty but its offset by greater flexibility to change the file system size as needed. I'd imagine the performance would be identical in a low demand environment but varies exponentially as the load increases. I would be interested in seeing a comparison of striped vs non-striped file systems and the effects of an increasing workload specific to Samba. Ray Mrohs Energy Information Administration U.S. Department of Energy -Original Message- From: Ferguson, Neale [mailto:[EMAIL PROTECTED] Sent: Monday, March 21, 2005 8:46 AM To: LINUX-390@VM.MARIST.EDU Subject: Samba V3 on zSeries Redpiece See: http://www.redbooks.ibm.com/redpieces/pdfs/redp3988.pdf This document provides the reader with basic performance rules of thumb for Samba Version 3.0.5 on zSeries Linux and gives background information that can be used in configuring and tuning your Samba V3 environment. The data was developed using an IBM internal workload generator to simulate a heavy transaction load. It identifies the parameters for optimum performance of Samba V3. -- For LINUX-390 subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 -- For LINUX-390 subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: Samba V3 on zSeries Redpiece
Daniel, Chris, > "Our optimal configuration included: > 1 MB of Memory " > >...? >> Whoa! Cool! That is what I call resource friendly! ;) Unfortunately there is no new zSeries technology that compresses 125 bytes into each storage bit. :(( That should be "1 GB" - I have contacted the authors/ITSO. Hopefully it can be corrected quickly. Thanks for pointing it out. "Mike MacIsaac" <[EMAIL PROTECTED]> (845) 433-7061 -- For LINUX-390 subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: Samba V3 on zSeries Redpiece
Hi! The test configuration has MTU size = 1500. I'm using MTU=1492, because of IBM recommendation, for eg. in redbook lx26apr04dd01: "For OSA-Express CHPID in QDIO mode devices with the Ethernet feature, the recommended MTU size is 1492 (8992 for jumbo frames). Chosing 1500 (or 9000 for jumbo frames) can cause performance degradation." What is the connection between SO_SNDBUF=14596 SO_RCVBUF=14596 parameteres and the MTU size? István Linux on 390 Port írta 2005.03.21 14:45:48 időpontban: > See: http://www.redbooks.ibm.com/redpieces/pdfs/redp3988.pdf > > This document provides the reader with basic performance rules of > thumb for Samba Version 3.0.5 on zSeries Linux and gives background > information that can be used in configuring and tuning your Samba V3 > environment. The data was developed using an IBM internal workload > generator to simulate a heavy transaction load. It identifies the > parameters for optimum performance of Samba V3. > > -- > For LINUX-390 subscribe / signoff / archive access instructions, > send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit > http://www.marist.edu/htbin/wlvindex?LINUX-390 -- For LINUX-390 subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: Samba V3 on zSeries Redpiece
On Tuesday, 03/22/2005 at 07:42 CET, Istvan Nemeth <[EMAIL PROTECTED]> wrote: > What is the connection between SO_SNDBUF=14596 SO_RCVBUF=14596 parameteres > and the MTU size? The two aren't related. The SO_xxxBUF parameters define the the size of a send/receive buffer associated with a specific socket in order to prevent network applications from using all available memory. For high-volume applications you would typically set a larger value, up to the maximum size allowed. The TCP send/receive buffers are not affected by the socket buffer sizes. TCP buffers are dependent on the maximum segment size (MSS). It is the MSS that is dependent on the MTU, being chosen to avoid fragmentation. Alan Altmark z/VM Development IBM Endicott -- For LINUX-390 subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
