Messages in this thread | | | From | Tom Herbert <> | Date | Mon, 18 Jul 2016 18:34:52 +0200 | Subject | Re: [RFC PATCH 00/30] Kernel NET policy |
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On Mon, Jul 18, 2016 at 5:51 PM, Liang, Kan <kan.liang@intel.com> wrote: > > >> > >> > It is a big challenge to get good network performance. First, the >> > network performance is not good with default system settings. Second, >> > it is too difficult to do automatic tuning for all possible workloads, >> > since workloads have different requirements. Some workloads may want >> high throughput. >> >> Seems you did lots of tests to find optimal settings for a given base policy. >> > Yes. Current test only base on Intel i40e driver. The optimal settings should > vary for other devices. But adding settings for new device is not hard. > The optimal settings are very dependent on system architecture (NUMA config, #cpus, memory, etc.) and sometimes kernel version as well. A database that provides best configurations across different devices, architectures, and kernel version might be interesting; but beware that that is a whole bunch of work to maintain, Either way policy like this really should be handled in userspace.
Tom
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