Messages in this thread | | | From | Eric Dumazet <> | Date | Tue, 9 Oct 2018 19:05:20 -0700 | Subject | Re: [LKP] [tcp] a337531b94: netperf.Throughput_Mbps -6.1% regression |
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On Tue, Oct 9, 2018 at 7:01 PM kernel test robot <rong.a.chen@intel.com> wrote: > > Greeting, > > FYI, we noticed a -6.1% regression of netperf.Throughput_Mbps due to commit: > > > commit: a337531b942bd8a03e7052444d7e36972aac2d92 ("tcp: up initial rmem to 128KB and SYN rwin to around 64KB") > https://git.kernel.org/cgit/linux/kernel/git/davem/net-next.git master > > in testcase: netperf > on test machine: 16 threads Intel(R) Xeon(R) CPU D-1541 @ 2.10GHz with 8G memory > with following parameters: > > ip: ipv4 > runtime: 900s > nr_threads: 200% > cluster: cs-localhost > test: TCP_STREAM > ucode: 0x7000013 > cpufreq_governor: performance > > test-description: Netperf is a benchmark that can be use to measure various aspect of networking performance. > test-url: http://www.netperf.org/netperf/ > >
This should have been fixed by :
041a14d2671573611ffd6412bc16e2f64469f7fb tcp: start receiver buffer autotuning sooner
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