* Re: [sctp] ef2820a735: -50% netperf Throughput_Mbps [not found] <20140219132034.GC8704@localhost> @ 2014-02-19 17:06 ` Matija Glavinic Pecotic 2014-02-23 1:37 ` Fengguang Wu 0 siblings, 1 reply; 2+ messages in thread From: Matija Glavinic Pecotic @ 2014-02-19 17:06 UTC (permalink / raw) To: ext Fengguang Wu; +Cc: LKML, Linux Netdev List, linux-sctp@vger.kernel.org Hello Fengguang, On 02/19/2014 02:20 PM, ext Fengguang Wu wrote: > Hi Matija, > > We noticed the below changes on commit ef2820a735f74ea60335f8ba3801b844f0cb184d > (" net: sctp: Fix a_rwnd/rwnd management to reflect real state of the receiver's buffer") > in netperf SCTP_STREAM tests: thanks for the info. Though, I've ran netperf in my environment, with and without patch, and I havent observed any difference. Could you please give me information on your environment, how do you invoke netperf, and other details you think I might be interested in to observe problem by myself Thanks! > cd0f0b95fd2cd2b ef2820a735f74ea60335f8ba3 > --------------- ------------------------- > 8 ~ 0% -50.0% 4 ~ 0% TOTAL netperf.Throughput_Mbps > 54287 ~44% +338.1% 237842 ~48% TOTAL cpuidle.C1E-NHM.time > 12008353 ~12% -56.0% 5281848 ~ 0% TOTAL proc-vmstat.pgalloc_normal > 114861 ~ 0% -50.3% 57085 ~ 3% TOTAL softirqs.NET_RX > 12964639 ~11% -55.1% 5818663 ~ 0% TOTAL proc-vmstat.pgfree > 866489 ~ 0% -43.3% 491417 ~ 0% TOTAL proc-vmstat.pgalloc_dma32 > 119373 ~17% -39.1% 72661 ~ 1% TOTAL softirqs.SCHED > 1985 ~13% -24.3% 1502 ~19% TOTAL slabinfo.kmalloc-128.active_objs > 2139 ~20% -28.4% 1532 ~ 4% TOTAL proc-vmstat.nr_alloc_batch > 124360 ~33% -31.0% 85748 ~ 2% TOTAL softirqs.RCU > 1977 ~ 9% -18.5% 1610 ~ 9% TOTAL slabinfo.UDP.active_objs > 1977 ~ 9% -18.5% 1610 ~ 9% TOTAL slabinfo.UDP.num_objs > 2066 ~ 6% -12.9% 1800 ~ 7% TOTAL slabinfo.kmalloc-128.num_objs > 1738 ~10% -18.4% 1418 ~ 9% TOTAL slabinfo.UDPv6.active_objs > 1738 ~10% -18.4% 1418 ~ 9% TOTAL slabinfo.UDPv6.num_objs > 923 ~10% -17.7% 760 ~ 8% TOTAL slabinfo.TCPv6.active_objs > 923 ~10% -17.7% 760 ~ 8% TOTAL slabinfo.TCPv6.num_objs > 989 ~ 9% -17.1% 820 ~ 7% TOTAL slabinfo.TCP.active_objs > 989 ~ 9% -17.1% 820 ~ 7% TOTAL slabinfo.TCP.num_objs > 398761 ~44% -32.6% 268792 ~ 3% TOTAL numa-vmstat.node2.numa_hit > 389672 ~49% -32.9% 261443 ~ 3% TOTAL numa-vmstat.node0.numa_hit > 447 ~ 1% -13.8% 385 ~ 0% TOTAL vmstat.system.cs > > Note: the "~ XX%" numbers are stddev percent. > > netperf.Throughput_Mbps > > 4 *+-*--*--*--*-*--*--*--*--*--*--*--*-*--*--*--*--*--*--*--*-*--*--*--* > | | > | | > 3.5 ++ | > | | > | | > | | > 3 ++ | > | | > | | > 2.5 ++ | > | | > | | > | | > 2 O+-O--O--O--O-O--O--O--O--O--O--O--O-O--O--O--O--O--O--O-------------+ > > > vmstat.system.cs > > 460 ++------------------------*--*----------------*----------------------+ > | .*.. .*.. : + + *.. .* > 450 ++ *. .*. *.. : + .*..*.. + *..*..*.. + .*. | > 440 *+ : * : *..* * * *. | > |: : * | > 430 ++: : | > 420 ++: : | > | * | > 410 ++ | > 400 ++ | > | | > 390 ++ O O O O O | > 380 O+ O O O O O O O O O O O O O | > | O | > 370 ++-------------------------------------------------------------------+ > ^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [sctp] ef2820a735: -50% netperf Throughput_Mbps 2014-02-19 17:06 ` [sctp] ef2820a735: -50% netperf Throughput_Mbps Matija Glavinic Pecotic @ 2014-02-23 1:37 ` Fengguang Wu 0 siblings, 0 replies; 2+ messages in thread From: Fengguang Wu @ 2014-02-23 1:37 UTC (permalink / raw) To: Matija Glavinic Pecotic Cc: LKML, Linux Netdev List, linux-sctp@vger.kernel.org Hi Matija, On Wed, Feb 19, 2014 at 06:06:34PM +0100, Matija Glavinic Pecotic wrote: > Hello Fengguang, > > On 02/19/2014 02:20 PM, ext Fengguang Wu wrote: > > Hi Matija, > > > > We noticed the below changes on commit ef2820a735f74ea60335f8ba3801b844f0cb184d > > (" net: sctp: Fix a_rwnd/rwnd management to reflect real state of the receiver's buffer") > > in netperf SCTP_STREAM tests: > > thanks for the info. Though, I've ran netperf in my environment, with and without patch, and I havent observed any difference. > > Could you please give me information on your environment, how do you invoke netperf, and other details you think I might be interested in to observe problem by myself I see the same regression on both T410 and NHM EX server. On each test machine, I'm running (2*nr_logical_cpu) the below command in parallel: netperf -t SCTP_STREAM -c -C -l 120 Thanks, Fengguang > Thanks! > > > cd0f0b95fd2cd2b ef2820a735f74ea60335f8ba3 > > --------------- ------------------------- > > 8 ~ 0% -50.0% 4 ~ 0% TOTAL netperf.Throughput_Mbps > > 54287 ~44% +338.1% 237842 ~48% TOTAL cpuidle.C1E-NHM.time > > 12008353 ~12% -56.0% 5281848 ~ 0% TOTAL proc-vmstat.pgalloc_normal > > 114861 ~ 0% -50.3% 57085 ~ 3% TOTAL softirqs.NET_RX > > 12964639 ~11% -55.1% 5818663 ~ 0% TOTAL proc-vmstat.pgfree > > 866489 ~ 0% -43.3% 491417 ~ 0% TOTAL proc-vmstat.pgalloc_dma32 > > 119373 ~17% -39.1% 72661 ~ 1% TOTAL softirqs.SCHED > > 1985 ~13% -24.3% 1502 ~19% TOTAL slabinfo.kmalloc-128.active_objs > > 2139 ~20% -28.4% 1532 ~ 4% TOTAL proc-vmstat.nr_alloc_batch > > 124360 ~33% -31.0% 85748 ~ 2% TOTAL softirqs.RCU > > 1977 ~ 9% -18.5% 1610 ~ 9% TOTAL slabinfo.UDP.active_objs > > 1977 ~ 9% -18.5% 1610 ~ 9% TOTAL slabinfo.UDP.num_objs > > 2066 ~ 6% -12.9% 1800 ~ 7% TOTAL slabinfo.kmalloc-128.num_objs > > 1738 ~10% -18.4% 1418 ~ 9% TOTAL slabinfo.UDPv6.active_objs > > 1738 ~10% -18.4% 1418 ~ 9% TOTAL slabinfo.UDPv6.num_objs > > 923 ~10% -17.7% 760 ~ 8% TOTAL slabinfo.TCPv6.active_objs > > 923 ~10% -17.7% 760 ~ 8% TOTAL slabinfo.TCPv6.num_objs > > 989 ~ 9% -17.1% 820 ~ 7% TOTAL slabinfo.TCP.active_objs > > 989 ~ 9% -17.1% 820 ~ 7% TOTAL slabinfo.TCP.num_objs > > 398761 ~44% -32.6% 268792 ~ 3% TOTAL numa-vmstat.node2.numa_hit > > 389672 ~49% -32.9% 261443 ~ 3% TOTAL numa-vmstat.node0.numa_hit > > 447 ~ 1% -13.8% 385 ~ 0% TOTAL vmstat.system.cs > > > > Note: the "~ XX%" numbers are stddev percent. > > > > netperf.Throughput_Mbps > > > > 4 *+-*--*--*--*-*--*--*--*--*--*--*--*-*--*--*--*--*--*--*--*-*--*--*--* > > | | > > | | > > 3.5 ++ | > > | | > > | | > > | | > > 3 ++ | > > | | > > | | > > 2.5 ++ | > > | | > > | | > > | | > > 2 O+-O--O--O--O-O--O--O--O--O--O--O--O-O--O--O--O--O--O--O-------------+ > > > > > > vmstat.system.cs > > > > 460 ++------------------------*--*----------------*----------------------+ > > | .*.. .*.. : + + *.. .* > > 450 ++ *. .*. *.. : + .*..*.. + *..*..*.. + .*. | > > 440 *+ : * : *..* * * *. | > > |: : * | > > 430 ++: : | > > 420 ++: : | > > | * | > > 410 ++ | > > 400 ++ | > > | | > > 390 ++ O O O O O | > > 380 O+ O O O O O O O O O O O O O | > > | O | > > 370 ++-------------------------------------------------------------------+ > > ^ permalink raw reply [flat|nested] 2+ messages in thread
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2014-02-19 17:06 ` [sctp] ef2820a735: -50% netperf Throughput_Mbps Matija Glavinic Pecotic
2014-02-23 1:37 ` Fengguang Wu
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