Re: how to bind single interface with more than one cpu
Hi, I am using fedora 15 for application server.That applicaton is very loaded in network and we have good h/w which having 4 core cpu and currently 1 lan interface are using.So now i want to bind that interface with more than one cpu to gain more performance and more throughput. I tried to do it by smp_afinity, but i can't. so i need advice and help. Is there anything required from kernel side.? any parameter or any thing which need to enable in kernel.? Regards, Benjamin -BEGIN PGP SIGNED MESSAGE- Hash: SHA512 On 10/18/2011 02:42 PM, Benjamin wrote: Hi, Any guidence on this requirement. I don't think your question makes any sense. Perhaps ask a question that does? -BEGIN PGP SIGNATURE- iQIcBAEBCgAGBQJOnddgAAoJEF1Xw4ZWTEoJm4IP/ju62Gddy7LgIbo1/AArbu1w sScJgikaOOOnlow4GoN/aATYHg5bdjBGNDZRUqufk+0wa88/pCzITI8O9syjgBy4 Jj1VtEysD+QbexwnvNHREE72Aqy/3nrHF7R/9kwQtssMwbeRnwj2T37/Y5rQaJMB j8ugFXleVUdi6P/MB0QLL+V8O+2Uxk3Tlro0p0Bu6Iqudjm0v3BMR+CUlEVhXs8Z ABD0EYYnQ9alItxpg9iihs3uMpma+7Yv//XcJxelqvG1+q0A6TR2Ogm4CfCxMD1L u9q5tlLYEUY+7fACuHv5s9NjbXbpQ0C6UIYiUQfufcj4x5uS1kyNly95Gt/0Km79 IcLUCEsByFWdjGQfLtyC9EmSBuOTVwyfCeLOVKOXfakSYyYAnqrxf8hSnuzCJ6Iz K69Qlo5a/08oUJkoiThipLaDAfMnnfr5+3wAoQJhyLKsNkln8g0Sx91XXQaUOKCp 0m6jprAa/nb9aMrj/0R3yIP7O0RCbE+yvA+WJ5prG6GEzJVOlkaWD+lz2wYnY2Y9 S9XJPlEL89KmjuAx7a2mCwCoVcR5yrhNemHddf9zS1PG/+Pxgz3yPcQSsbKN+tLP /PwDgFbPbkWvZ8i58BLiML7g+um4x76A4gU4c2/u4AlpD4Hm5wipqup6HsYJtSCJ u/pA2ykzWicr8PEw1aQb =uDO0 -END PGP SIGNATURE- -- users mailing list users@lists.fedoraproject.org To unsubscribe or change subscription options: https://admin.fedoraproject.org/mailman/listinfo/users Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines
Re: how to bind single interface with more than one cpu
On 10/19/2011 11:15 AM, Benjamin wrote: Hi, I am using fedora 15 for application server.That applicaton is very loaded in network and we have good h/w which having 4 core cpu and currently 1 lan interface are using.So now i want to bind that interface with more than one cpu to gain more performance and more throughput. I tried to do it by smp_afinity, but i can't. so i need advice and help. Is there anything required from kernel side.? any parameter or any thing which need to enable in kernel.? When you say you tried to do it by smp_afinity, what exactly did you do? Mike -- users mailing list users@lists.fedoraproject.org To unsubscribe or change subscription options: https://admin.fedoraproject.org/mailman/listinfo/users Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines
Re: how to bind single interface with more than one cpu
Benjamin wrote: I am using fedora 15 for application server.That applicaton is very loaded in network and we have good h/w which having 4 core cpu and currently 1 lan interface are using.So now i want to bind that interface with more than one cpu to gain more performance and more throughput. I tried to do it by smp_afinity, but i can't. so i need advice and help. Is there anything required from kernel side.? any parameter or any thing which need to enable in kernel.? The kernel will automatically load balance interrupts. There is no need to configure the affinity of your interrupts by hand. -- users mailing list users@lists.fedoraproject.org To unsubscribe or change subscription options: https://admin.fedoraproject.org/mailman/listinfo/users Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines
RE: how to bind single interface with more than one cpu
From: users-boun...@lists.fedoraproject.org [users-boun...@lists.fedoraproject.org] On Behalf Of Michael Cronenworth Benjamin wrote: I am using fedora 15 for application server.That applicaton is very loaded in network and we have good h/w which having 4 core cpu and currently 1 lan interface are using.So now i want to bind that interface with more than one cpu to gain more performance and more throughput. I tried to do it by smp_afinity, but i can't. so i need advice and help. Is there anything required from kernel side.? any parameter or any thing which need to enable in kernel.? The kernel will automatically load balance interrupts. There is no need to configure the affinity of your interrupts by hand. Maybe the original poster need to look at whether the application can support multiple processors or multi-threading? Or bonding the ethernet interfaces to create a bigger pipe? -- users mailing list users@lists.fedoraproject.org To unsubscribe or change subscription options: https://admin.fedoraproject.org/mailman/listinfo/users Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines
Re: how to bind single interface with more than one cpu
Hi, I tried to change value in interface interrupt's smp_afinity value as per my understanding , smp_afinity values 1 for cpu0 2 for cpu1 4 for cpu2 8 for cpu3 that way cpu0+cpu1 = 1 + 2 = 3 so i set different values for test .but each time it only binds with single cpu from cpu0 / cpu1 / cpu2 or cpu3. i also start cpuspeed service and irqbalance --oneshot. But same result.i am not able to use more than 1 cpu for single interface. Regards, Benjo On 10/19/2011 11:15 AM, Benjamin wrote: Hi, I am using fedora 15 for application server.That applicaton is very loaded in network and we have good h/w which having 4 core cpu and currently 1 lan interface are using.So now i want to bind that interface with more than one cpu to gain more performance and more throughput. I tried to do it by smp_afinity, but i can't. so i need advice and help. Is there anything required from kernel side.? any parameter or any thing which need to enable in kernel.? When you say you tried to do it by smp_afinity, what exactly did you do? Mike -- users mailing list users@lists.fedoraproject.org To unsubscribe or change subscription options: https://admin.fedoraproject.org/mailman/listinfo/users Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines
Re: how to bind single interface with more than one cpu
Hi, I found that for irq distribution across multiple cpus CONFIG_IRQBALANCE must enabled in kernel.so i tried to check in my existing kernel but i m not getting it in config-2.6.40.6 so i downloaded 3.0.4 but when i m going to compile it , i try to find irqbalance optionn in menuconfig. But not getting such option. So please tell me from which option or module , i will be having irqbalance enabled in my kernel.? Thanks, Benjamin Hi, I tried to change value in interface interrupt's smp_afinity value as per my understanding , smp_afinity values 1 for cpu0 2 for cpu1 4 for cpu2 8 for cpu3 that way cpu0+cpu1 = 1 + 2 = 3 so i set different values for test .but each time it only binds with single cpu from cpu0 / cpu1 / cpu2 or cpu3. i also start cpuspeed service and irqbalance --oneshot. But same result.i am not able to use more than 1 cpu for single interface. Regards, Benjo On 10/19/2011 11:15 AM, Benjamin wrote: Hi, I am using fedora 15 for application server.That applicaton is very loaded in network and we have good h/w which having 4 core cpu and currently 1 lan interface are using.So now i want to bind that interface with more than one cpu to gain more performance and more throughput. I tried to do it by smp_afinity, but i can't. so i need advice and help. Is there anything required from kernel side.? any parameter or any thing which need to enable in kernel.? When you say you tried to do it by smp_afinity, what exactly did you do? Mike -- users mailing list users@lists.fedoraproject.org To unsubscribe or change subscription options: https://admin.fedoraproject.org/mailman/listinfo/users Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines
Re: how to bind single interface with more than one cpu
Hi, Any guidence on this requirement. Hi, We have one server which i having 4 CPU core.So in that i want to bind 2 CPU with one LAN interface for high network performance. i tried to set smp_afinity , i can change irq of interface on different cpus but i can't bind it with 2 cpus. How to do it? Regards, Benjamin -- users mailing list users@lists.fedoraproject.org To unsubscribe or change subscription options: https://admin.fedoraproject.org/mailman/listinfo/users Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines
Re: how to bind single interface with more than one cpu
-BEGIN PGP SIGNED MESSAGE- Hash: SHA512 On 10/18/2011 02:42 PM, Benjamin wrote: Hi, Any guidence on this requirement. I don't think your question makes any sense. Perhaps ask a question that does? -BEGIN PGP SIGNATURE- iQIcBAEBCgAGBQJOnddgAAoJEF1Xw4ZWTEoJm4IP/ju62Gddy7LgIbo1/AArbu1w sScJgikaOOOnlow4GoN/aATYHg5bdjBGNDZRUqufk+0wa88/pCzITI8O9syjgBy4 Jj1VtEysD+QbexwnvNHREE72Aqy/3nrHF7R/9kwQtssMwbeRnwj2T37/Y5rQaJMB j8ugFXleVUdi6P/MB0QLL+V8O+2Uxk3Tlro0p0Bu6Iqudjm0v3BMR+CUlEVhXs8Z ABD0EYYnQ9alItxpg9iihs3uMpma+7Yv//XcJxelqvG1+q0A6TR2Ogm4CfCxMD1L u9q5tlLYEUY+7fACuHv5s9NjbXbpQ0C6UIYiUQfufcj4x5uS1kyNly95Gt/0Km79 IcLUCEsByFWdjGQfLtyC9EmSBuOTVwyfCeLOVKOXfakSYyYAnqrxf8hSnuzCJ6Iz K69Qlo5a/08oUJkoiThipLaDAfMnnfr5+3wAoQJhyLKsNkln8g0Sx91XXQaUOKCp 0m6jprAa/nb9aMrj/0R3yIP7O0RCbE+yvA+WJ5prG6GEzJVOlkaWD+lz2wYnY2Y9 S9XJPlEL89KmjuAx7a2mCwCoVcR5yrhNemHddf9zS1PG/+Pxgz3yPcQSsbKN+tLP /PwDgFbPbkWvZ8i58BLiML7g+um4x76A4gU4c2/u4AlpD4Hm5wipqup6HsYJtSCJ u/pA2ykzWicr8PEw1aQb =uDO0 -END PGP SIGNATURE- -- users mailing list users@lists.fedoraproject.org To unsubscribe or change subscription options: https://admin.fedoraproject.org/mailman/listinfo/users Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines
Re: how to bind single interface with more than one cpu
On 10/18/2011 12:45 PM, Larry Brower wrote: On 10/18/2011 02:42 PM, Benjamin wrote: Hi, Any guidence on this requirement. I don't think your question makes any sense. Perhaps ask a question that does? He's referring to the question asked in the subject of the post. -- users mailing list users@lists.fedoraproject.org To unsubscribe or change subscription options: https://admin.fedoraproject.org/mailman/listinfo/users Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines
