[dpdk-dev] Physical core vs. hyper threaded core

2014-03-03 Thread Jayakumar, Muthurajan
en; dev at dpdk.org Subject: Re: [dpdk-dev] Physical core vs. hyper threaded core Thanks Jane. Great. So interference with DPDK. Perfect. The reason for using physical core is, you get more resources compared to using in hyperthreaded mode this is because there are some resources statically parti

[dpdk-dev] Physical core vs. hyper threaded core

2014-03-03 Thread Jane Shen
d core In your scenario, NO interference with DPDK. Perfect. -Original Message- From: dev [mailto:dev-boun...@dpdk.org] On Behalf Of Jayakumar, Muthurajan Sent: Sunday, March 02, 2014 6:23 PM To: Jane Shen; dev at dpdk.org Subject: Re: [dpdk-dev] Physical core vs. hyper threaded core T

[dpdk-dev] Physical core vs. hyper threaded core

2014-03-03 Thread Jayakumar, Muthurajan
In your scenario, NO interference with DPDK. Perfect. -Original Message- From: dev [mailto:dev-boun...@dpdk.org] On Behalf Of Jayakumar, Muthurajan Sent: Sunday, March 02, 2014 6:23 PM To: Jane Shen; dev at dpdk.org Subject: Re: [dpdk-dev] Physical core vs. hyper threaded core Thanks

[dpdk-dev] Physical core vs. hyper threaded core

2014-03-03 Thread Jayakumar, Muthurajan
ev at dpdk.org Subject: [dpdk-dev] Physical core vs. hyper threaded core Hi, I understand that DPDK should use the physical core. But here is what we tested: - Enable HT - Assign 8 cores of the CPU (an 8-core Sandybridge CPU) to DPDK. Surprisingly enough, we noticed tha

[dpdk-dev] Physical core vs. hyper threaded core

2014-03-03 Thread Jane Shen
less interference from signaling threads. Thanks, -Original Message- From: dev [mailto:dev-boun...@dpdk.org] On Behalf Of Jane Shen Sent: Sunday, March 02, 2014 4:56 PM To: dev at dpdk.org Subject: [dpdk-dev] Physical core vs. hyper threaded core Hi, I understand that DPDK should us

[dpdk-dev] Physical core vs. hyper threaded core

2014-03-03 Thread Jayakumar, Muthurajan
, -Original Message- From: dev [mailto:dev-boun...@dpdk.org] On Behalf Of Jane Shen Sent: Sunday, March 02, 2014 4:56 PM To: dev at dpdk.org Subject: [dpdk-dev] Physical core vs. hyper threaded core Hi, I understand that DPDK should use the physical core. But here is what we tested

[dpdk-dev] Physical core vs. hyper threaded core

2014-03-03 Thread Jane Shen
Hi, I understand that DPDK should use the physical core. But here is what we tested: - Enable HT - Assign 8 cores of the CPU (an 8-core Sandybridge CPU) to DPDK. Surprisingly enough, we noticed that the remaining 8 cores (b/c there are total of 16 cores after HT) can still ha