Date: Tue, 31 May 2005 10:37:40 -0700 From: "Singh, Vijay" <Vijay.Singh@netapp.com> To: <freebsd-smp@freebsd.org> Subject: 5.4 network performance Message-ID: <637A278D8D0DBC438EA5E75C6E1818B904410DAA@magenta.hq.netapp.com>
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Hello. I am trying to benchmark 5.4 performance for a company project.
I've got:
=20
FreeBSD 5.4-RELEASE #0: Fri May 27 20:52:58 PDT 2005
admin@netpc13.lab.netapp.com:/usr/obj/usr/src/sys/SMP
Timecounter "i8254" frequency 1193182 Hz quality 0
CPU: Intel(R) Xeon(TM) CPU 2.40GHz (2395.92-MHz 686-class CPU)
Origin =3D "GenuineIntel" Id =3D 0xf27 Stepping =3D 7
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Features=3D0xbfebfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PG=
E
,MCA,CMOV,PAT,PSE36,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,S
SE2,SS,HTT,TM,PBE>
Hyperthreading: 2 logical CPUs
real memory =3D 1073676288 (1023 MB)
avail memory =3D 1041121280 (992 MB)
ACPI APIC Table: <RCC GCHE >
FreeBSD/SMP: Multiprocessor System Detected: 4 CPUs
cpu0 (BSP): APIC ID: 0
cpu1 (AP): APIC ID: 1
cpu2 (AP): APIC ID: 2
cpu3 (AP): APIC ID: 3
em0: <Intel(R) PRO/1000 Network Connection, Version - 1.7.35> port
0xc800-0xc83f mem 0xfe8c0000-0xfe8dffff irq 18 at device 2.0 on pci1
em1: <Intel(R) PRO/1000 Network Connection, Version - 1.7.35> port
0xd000-0xd03f mem 0xfe8e0000-0xfe8fffff irq 19 at device 2.1 on pci1
The UP version of the builds is able to deliver close to line rate on
these 2 interfaces. However the SMP build (with WITNESS and INVARIANTS
disabled) gives me half the line rate on them. I am using netperf.
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/opt/netperf/netperf -H x.x.x.x -f m -l 120
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Socket Socket Message Elapsed
Size Size Size Time Throughput
bytes bytes bytes secs. 10^6bits/sec
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65536 16384 16384 120.00 429.14
65536 16384 16384 120.00 501.74
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Is there something I can do to make the system scale? I cannot move to
-CURRENT, but I can try pulling patches.
=20
br
vijay
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