Date: Mon, 28 Nov 2005 16:13:21 +0100 From: =?ISO-8859-1?Q?Eirik_=D8verby?= <ltning@anduin.net> To: Joseph Koshy <joseph.koshy@gmail.com> Cc: stable@freebsd.org Subject: Re: Reduced java/tomcat performance 6-beta3 -> 6-stable ? Message-ID: <86E866F9-4BB8-439C-B1A8-246571D83CD3@anduin.net> In-Reply-To: <84dead720511280654j138635abgcb9cc0978e6c26b7@mail.gmail.com> References: <93F6B911-8C64-4F5C-81F9-80EC271ED298@anduin.net> <84dead720511280545v2bc0bc35jd107da06b9a788cb@mail.gmail.com> <20187843-76FC-4EAB-AFF8-7493FB0C0077@anduin.net> <84dead720511280654j138635abgcb9cc0978e6c26b7@mail.gmail.com>
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On Nov 28, 2005, at 15:54 , Joseph Koshy wrote:
> E=D8> *loads* more context switches than on the BETA-3 system.
> E=D8> I have not yet tried this during load
>
> - Which scheduler have you configured (BSD or ULE)?
Running GENERIC/SMP kernels, with BSD scheduler.
Speaking of which; is there a way to extract the kernel configuration =20=
from a running kernel or kernel binary?
> - What do the interrupt statistics show? Any interrupt
> storms? Please check the mailing lists for a prior
> discussion on interrupt storms on some motherboards.
Slow system:
interrupt total rate
irq1: atkbd0 4 0
irq14: ata0 46 0
irq24: ciss0 337166 1
irq28: bge0 8038794 35
cpu0: timer 446869052 1999
cpu1: timer 446861051 1999
Total 902106113 4037
Fast system:
interrupt total rate
irq1: atkbd0 6 0
irq14: ata0 46 0
irq24: ciss0 7465831 1
irq28: bge0 20764380 2
lapic0: timer 14827978729 2000
lapic1: timer 14827970729 2000
Total 29684179721 4003
No significant differences I'd say. Anything else I can do to dig =20
deeper?
> - Could you post the dmesg output from the systems (I
> presume there aren't any significant differences).
dmesg from slow system follows. I do not have a dmesg for the fast =20
system; I cannot boot it now either. However, I have compared them =20
before, and they are 100% equal. Seems to be very close in serial =20
numbers, probably same production run.
Copyright (c) 1992-2005 The FreeBSD Project.
Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
The Regents of the University of California. All rights =20
reserved.
FreeBSD 6.0-STABLE #0: Sat Nov 26 01:52:00 CET 2005
root@build.unicore.no:/usr/obj/amd64/usr/src/sys/SMP
Timecounter "i8254" frequency 1193182 Hz quality 0
CPU: AMD Opteron(tm) Processor 250 (2405.47-MHz K8-class CPU)
Origin =3D "AuthenticAMD" Id =3D 0x20f51 Stepping =3D 1
=20
Features=3D0x78bfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,=
=20
MCA,CMOV,PAT,PSE36,CLFLUSH,MMX,FXSR,SSE,SSE2>
Features2=3D0x1<SSE3>
AMD Features=3D0xe2500800<SYSCALL,NX,MMX+,<b25>,LM,3DNow+,3DNow>
real memory =3D 1073717248 (1023 MB)
avail memory =3D 1024946176 (977 MB)
ACPI APIC Table: <HP 00000083>
FreeBSD/SMP: Multiprocessor System Detected: 2 CPUs
cpu0 (BSP): APIC ID: 0
cpu1 (AP): APIC ID: 1
MADT: Forcing active-low polarity and level trigger for SCI
ioapic0 <Version 1.1> irqs 0-23 on motherboard
ioapic1 <Version 1.1> irqs 24-27 on motherboard
ioapic2 <Version 1.1> irqs 28-31 on motherboard
ioapic3 <Version 1.1> irqs 32-35 on motherboard
ioapic4 <Version 1.1> irqs 36-39 on motherboard
acpi0: <HP A05> on motherboard
acpi0: Power Button (fixed)
pci_link0: <ACPI PCI Link LNKA> irq 5 on acpi0
pci_link1: <ACPI PCI Link LNKB> irq 7 on acpi0
pci_link2: <ACPI PCI Link LNKC> irq 0 on acpi0
pci_link3: <ACPI PCI Link LNKD> irq 3 on acpi0
Timecounter "ACPI-fast" frequency 3579545 Hz quality 1000
acpi_timer0: <32-bit timer at 3.579545MHz> port 0x908-0x90b on acpi0
cpu0: <ACPI CPU> on acpi0
cpu1: <ACPI CPU> on acpi0
pcib0: <ACPI Host-PCI bridge> on acpi0
pci0: <ACPI PCI bus> on pcib0
pcib1: <ACPI PCI-PCI bridge> at device 3.0 on pci0
pci1: <ACPI PCI bus> on pcib1
ohci0: <OHCI (generic) USB controller> mem 0xf7df0000-0xf7df0fff irq =20
19 at device 0.0 on pci1
ohci0: [GIANT-LOCKED]
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: AMD OHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub0: 3 ports with 3 removable, self powered
ohci1: <OHCI (generic) USB controller> mem 0xf7de0000-0xf7de0fff irq =20
19 at device 0.1 on pci1
ohci1: [GIANT-LOCKED]
usb1: OHCI version 1.0, legacy support
usb1: SMM does not respond, resetting
usb1: <OHCI (generic) USB controller> on ohci1
usb1: USB revision 1.0
uhub1: AMD OHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub1: 3 ports with 3 removable, self powered
pci1: <base peripheral> at device 2.0 (no driver attached)
pci1: <base peripheral> at device 2.2 (no driver attached)
pci1: <display, VGA> at device 3.0 (no driver attached)
isab0: <PCI-ISA bridge> at device 4.0 on pci0
isa0: <ISA bus> on isab0
atapci0: <AMD 8111 UDMA133 controller> port =20
0x1f0-0x1f7,0x3f6,0x170-0x177,0x376,0x2000-0x200f at device 4.1 on pci0
ata0: <ATA channel 0> on atapci0
ata1: <ATA channel 1> on atapci0
pci0: <bridge> at device 4.3 (no driver attached)
pcib2: <ACPI PCI-PCI bridge> at device 7.0 on pci0
pci2: <ACPI PCI bus> on pcib2
ciss0: <HP Smart Array 6i> port 0x5000-0x50ff mem =20
0xf7ef0000-0xf7ef1fff,0xf7e80000-0xf7ebffff irq 24 at device 4.0 on pci2
ciss0: [GIANT-LOCKED]
pci0: <base peripheral, interrupt controller> at device 7.1 (no =20
driver attached)
pcib3: <ACPI PCI-PCI bridge> at device 8.0 on pci0
pci3: <ACPI PCI bus> on pcib3
bge0: <Broadcom BCM5704C Dual Gigabit Ethernet, ASIC rev. 0x2100> mem =20=
0xf7ff0000-0xf7ffffff irq 28 at device 6.0 on pci3
miibus0: <MII bus> on bge0
brgphy0: <BCM5704 10/100/1000baseTX PHY> on miibus0
brgphy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, 1000baseTX, =20=
1000baseTX-FDX, auto
bge0: Ethernet address: 00:13:21:b3:c1:f8
bge1: <Broadcom BCM5704C Dual Gigabit Ethernet, ASIC rev. 0x2100> mem =20=
0xf7fe0000-0xf7feffff irq 29 at device 6.1 on pci3
miibus1: <MII bus> on bge1
brgphy1: <BCM5704 10/100/1000baseTX PHY> on miibus1
brgphy1: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, 1000baseTX, =20=
1000baseTX-FDX, auto
bge1: Ethernet address: 00:13:21:b3:c1:f7
pci0: <base peripheral, interrupt controller> at device 8.1 (no =20
driver attached)
pcib4: <ACPI Host-PCI bridge> on acpi0
pci4: <ACPI PCI bus> on pcib4
pcib5: <ACPI PCI-PCI bridge> at device 9.0 on pci4
pci5: <ACPI PCI bus> on pcib5
pci4: <base peripheral, interrupt controller> at device 9.1 (no =20
driver attached)
pcib6: <ACPI PCI-PCI bridge> at device 10.0 on pci4
pci6: <ACPI PCI bus> on pcib6
pci4: <base peripheral, interrupt controller> at device 10.1 (no =20
driver attached)
atkbdc0: <Keyboard controller (i8042)> port 0x60,0x64 irq 1 on acpi0
atkbd0: <AT Keyboard> flags 0x1 irq 1 on atkbdc0
kbd0 at atkbd0
atkbd0: [GIANT-LOCKED]
psm0: <PS/2 Mouse> irq 12 on atkbdc0
psm0: [GIANT-LOCKED]
psm0: model Generic PS/2 mouse, device ID 0
sio0: <Standard PC COM port> port 0x3f8-0x3ff irq 4 flags 0x10 on acpi0
sio0: type 16550A
fdc0: <floppy drive controller (FDE)> port 0x3f2-0x3f5 irq 6 drq 2 on =20=
acpi0
fdc0: does not respond
device_attach: fdc0 attach returned 6
fdc0: <floppy drive controller (FDE)> port 0x3f2-0x3f5 irq 6 drq 2 on =20=
acpi0
fdc0: does not respond
device_attach: fdc0 attach returned 6
orm0: <ISA Option ROMs> at iomem 0xc0000-0xc7fff,0xc8000-0xcbfff,=20
0xcc000-0xcd7ff,0xee000-0xeffff on isa0
ppc0: cannot reserve I/O port range
sc0: <System console> at flags 0x100 on isa0
sc0: VGA <16 virtual consoles, flags=3D0x300>
sio1: configured irq 3 not in bitmap of probed irqs 0
sio1: port may not be enabled
vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on =20
isa0
Timecounters tick every 1.000 msec
acd0: CDROM <COMPAQ CD-ROM SN-124/N104> at ata0-master PIO4
SMP: AP CPU #1 Launched!
da0 at ciss0 bus 0 target 0 lun 0
da0: <COMPAQ RAID 1 VOLUME OK> Fixed Direct Access SCSI-0 device
da0: 135.168MB/s transfers
da0: 34727MB (71122560 512 byte sectors: 255H 32S/T 8716C)
Trying to mount root from ufs:/dev/da0s1a
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