Date: Tue, 31 May 2005 15:54:36 -0700 From: "Singh, Vijay" <Vijay.Singh@netapp.com> To: "John Baldwin" <jhb@FreeBSD.org>, <freebsd-smp@FreeBSD.org> Subject: RE: 5.4 network performance Message-ID: <637A278D8D0DBC438EA5E75C6E1818B904410FC3@magenta.hq.netapp.com>
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Hi, sorry for the trouble, but even after commenting the USB lines from GENERIC, and a "make buildkernel" I see the following in dmesg: usb0: OHCI version 1.0, legacy support usb0: SMM does not respond, resetting usb0: <OHCI (generic) USB controller> on ohci0 usb0: USB revision 1.0 uhub0: (0x1166) OHCI root hub, class 9/0, rev 1.00/1.00, addr 1 uhub0: 4 ports with 4 removable, self powered Is there something else I need to do to disable USB support in the kernel? Br vijay > -----Original Message----- > From: John Baldwin [mailto:jhb@FreeBSD.org]=20 > Sent: Tuesday, May 31, 2005 2:46 PM > To: freebsd-smp@FreeBSD.org > Cc: Singh, Vijay > Subject: Re: 5.4 network performance >=20 > On Tuesday 31 May 2005 05:19 pm, Singh, Vijay wrote: > > > On Tuesday 31 May 2005 01:37 pm, Singh, Vijay wrote: > > > > Hello. I am trying to benchmark 5.4 performance for a > > > > > > company project. > > > > > > > I've got: > > > > > > > > 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 > > > > > >=20 > Features=3D0xbfebfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR > > > ,P > > > > > > > GE ,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=20 > 1041121280 (992=20 > > > > 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 -=20 > 1.7.35> port=20 > > > > 0xc800-0xc83f mem 0xfe8c0000-0xfe8dffff irq 18 at device 2.0 on=20 > > > > pci1 > > > > em1: <Intel(R) PRO/1000 Network Connection, Version -=20 > 1.7.35> port=20 > > > > 0xd000-0xd03f mem 0xfe8e0000-0xfe8fffff irq 19 at device 2.1 on=20 > > > > 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=20 > using netperf. > > > > > > > > /opt/netperf/netperf -H x.x.x.x -f m -l 120 > > > > > > > > Socket Socket Message Elapsed > > > > Size Size Size Time Throughput > > > > bytes bytes bytes secs. 10^6bits/sec > > > > > > > > 65536 16384 16384 120.00 429.14 > > > > 65536 16384 16384 120.00 501.74 > > > > > > > > Is there something I can do to make the system scale? I > > > > > > cannot move to > > > > > > > -CURRENT, but I can try pulling patches. > > > > > > Does UP with 'device apic' also show poor performance? Try=20 > > > disabling USB support in the kernel as some Intel server=20 > > > motherboards have a "feature" that our APIC code trips=20 > over that can=20 > > > hurt performance by adding lots of stray interrupts on one of the=20 > > > USB controllers. > > > > Thanks. I have the following in GENERIC, do I need to=20 > comment out all? > > Is the problem you mention responsible for the "Interrupt storm=20 > > detected" messages? Also I see some ACPI messages (below).=20 > Could that=20 > > also be a problem? > > > > # USB support > > device uhci # UHCI PCI->USB interface > > device ohci # OHCI PCI->USB interface > > #device ehci # EHCI PCI->USB interface (USB 2.0) > > device usb # USB Bus (required) > > #device udbp # USB Double Bulk Pipe devices > > device ugen # Generic > > device uhid # "Human Interface Devices" > > device ukbd # Keyboard > > device ulpt # Printer > > device umass # Disks/Mass storage -=20 > Requires scbus > > and da > > device ums # Mouse > > device urio # Diamond Rio 500 MP3 player > > device uscanner # Scanners > > # USB Ethernet, requires mii > > device aue # ADMtek USB Ethernet > > device axe # ASIX Electronics USB Ethernet > > device cdce # Generic USB over Ethernet > > device cue # CATC USB Ethernet > > device kue # Kawasaki LSI USB Ethernet > > device rue # RealTek RTL8150 USB Ethernet >=20 > Yes, comment all of that out. Disabling USB should solve=20 > your interrupt storm, yes. >=20 > > ACPI-0698: *** Warning: Type override - [DEB_] had invalid type > > (Integer) for Scope operator, changed to (Scope) > > ACPI-0698: *** Warning: Type override - [MLIB] had invalid type > > (Integer) for Scope operator, changed to (Scope) > > [...] > > ACPI-0698: *** Warning: Type override - [KBC_] had invalid type > > (Integer) for Scope operator, changed to (Scope) > > ACPI-0698: *** Warning: Type override - [OEM_] had invalid type > > (Integer) for Scope operator, changed to (Scope) >=20 > I don't think you need to worry about these. >=20 > -- > John Baldwin <jhb@FreeBSD.org> <>< =20 > http://www.FreeBSD.org/~jhb/ "Power Users Use the Power to=20 > Serve" =3D http://www.FreeBSD.org >=20
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