Date: Wed, 25 May 2005 05:45:29 +0200 From: Matthias Buelow <mkb@incubus.de> To: Kris Kennaway <kris@obsecurity.org> Cc: freebsd-stable@freebsd.org Subject: Re: Performance of 4.x vs 5.x (Re: Lifetime of FreeBSD branches) Message-ID: <4293F4D9.90204@incubus.de> In-Reply-To: <20050524221454.GA56421@xor.obsecurity.org> References: <3248.172.16.0.199.1116876092.squirrel@172.16.0.1> <20050523211307.GA36552@xor.obsecurity.org> <42924949.1070902@incubus.de> <200505242141.38289.max@love2party.net> <42938C2E.6020301@incubus.de> <20050524201942.GA28257@xor.obsecurity.org> <42938D40.1050502@incubus.de> <20050524202647.GA28322@xor.obsecurity.org> <4293A18F.6080200@incubus.de> <20050524221454.GA56421@xor.obsecurity.org>
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Kris Kennaway wrote: > OK, thanks for confirming. The next step is for you to try 6.0 with > debug.mpsafevfs=1 on a machine that exhibits the problem under 5.4, so > we can test whether the problem is caused by VFS being under Giant on > 5.4. I have now built 6.0-current from yesterday's source, verified that debug.mpsafevfs=1, and unpacked the firefox source. Unfortunately your hypothesis didn't hold. In fact, it's a lot worse than on 5.4-STABLE. Plus, even operations like bulk-rm'ing the unpacked firefox tree make X11 crawl and stutter, something that didn't have any observable effect on 5.4-STABLE. Maybe the dmesg output is of some help: 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 reserved. FreeBSD 6.0-CURRENT #0: Wed May 25 05:00:48 CEST 2005 root@drjekyll.mkbuelow.net:/usr/obj/usr/src/sys/GENERIC WARNING: WITNESS option enabled, expect reduced performance. Timecounter "i8254" frequency 1193182 Hz quality 0 CPU: Intel(R) Pentium(R) 4 CPU 3.00GHz (2992.52-MHz 686-class CPU) Origin = "GenuineIntel" Id = 0xf34 Stepping = 4 Features=0xbfebfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE> Features2=0x441d<SSE3,RSVD2>,MON,DS_CPL,CNTX-ID,<b14>> Hyperthreading: 2 logical CPUs real memory = 1072201728 (1022 MB) avail memory = 1040392192 (992 MB) ACPI APIC Table: <DELL 4700 > FreeBSD/SMP: Multiprocessor System Detected: 2 CPUs cpu0 (BSP): APIC ID: 0 cpu1 (AP): APIC ID: 1 ioapic0: Changing APIC ID to 8 ioapic0 <Version 2.0> irqs 0-23 on motherboard lapic0: Forcing LINT1 to edge trigger npx0: [FAST] npx0: <math processor> on motherboard npx0: INT 16 interface acpi0: <DELL 4700 > on motherboard acpi0: Power Button (fixed) pci_link0: <ACPI PCI Link LNKA> irq 11 on acpi0 pci_link1: <ACPI PCI Link LNKB> irq 5 on acpi0 pci_link2: <ACPI PCI Link LNKC> irq 5 on acpi0 pci_link3: <ACPI PCI Link LNKD> on acpi0 pci_link4: <ACPI PCI Link LNKE> irq 9 on acpi0 pci_link5: <ACPI PCI Link LNKF> irq 10 on acpi0 pci_link6: <ACPI PCI Link LNKG> irq 9 on acpi0 pci_link7: <ACPI PCI Link LNKH> irq 3 on acpi0 Timecounter "ACPI-fast" frequency 3579545 Hz quality 1000 acpi_timer0: <24-bit timer at 3.579545MHz> port 0x808-0x80b on acpi0 cpu0: <ACPI CPU> on acpi0 cpu1: <ACPI CPU> on acpi0 acpi_button0: <Power Button> on acpi0 pcib0: <ACPI Host-PCI bridge> port 0xcf8-0xcff on acpi0 pci0: <ACPI PCI bus> on pcib0 pcib1: <ACPI PCI-PCI bridge> irq 16 at device 1.0 on pci0 pci1: <ACPI PCI bus> on pcib1 pci1: <display, VGA> at device 0.0 (no driver attached) pci1: <display> at device 0.1 (no driver attached) pcib2: <ACPI PCI-PCI bridge> irq 16 at device 28.0 on pci0 pci2: <ACPI PCI bus> on pcib2 uhci0: <Intel 82801FB/FR/FW/FRW (ICH6) USB controller USB-A> port 0xff80-0xff9f irq 21 at device 29.0 on pci0 uhci0: [GIANT-LOCKED] usb0: <Intel 82801FB/FR/FW/FRW (ICH6) USB controller USB-A> on uhci0 usb0: USB revision 1.0 uhub0: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1 uhub0: 2 ports with 2 removable, self powered uhci1: <Intel 82801FB/FR/FW/FRW (ICH6) USB controller USB-B> port 0xff60-0xff7f irq 22 at device 29.1 on pci0 uhci1: [GIANT-LOCKED] usb1: <Intel 82801FB/FR/FW/FRW (ICH6) USB controller USB-B> on uhci1 usb1: USB revision 1.0 uhub1: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1 uhub1: 2 ports with 2 removable, self powered uhci2: <Intel 82801FB/FR/FW/FRW (ICH6) USB controller USB-C> port 0xff40-0xff5f irq 18 at device 29.2 on pci0 uhci2: [GIANT-LOCKED] usb2: <Intel 82801FB/FR/FW/FRW (ICH6) USB controller USB-C> on uhci2 usb2: USB revision 1.0 uhub2: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1 uhub2: 2 ports with 2 removable, self powered uhci3: <Intel 82801FB/FR/FW/FRW (ICH6) USB controller USB-D> port 0xff20-0xff3f irq 23 at device 29.3 on pci0 uhci3: [GIANT-LOCKED] usb3: <Intel 82801FB/FR/FW/FRW (ICH6) USB controller USB-D> on uhci3 usb3: USB revision 1.0 uhub3: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1 uhub3: 2 ports with 2 removable, self powered ehci0: <EHCI (generic) USB 2.0 controller> mem 0xffa80800-0xffa80bff irq 21 at device 29.7 on pci0 ehci0: [GIANT-LOCKED] usb4: EHCI version 1.0 usb4: companion controllers, 2 ports each: usb0 usb1 usb2 usb3 usb4: <EHCI (generic) USB 2.0 controller> on ehci0 usb4: USB revision 2.0 uhub4: Intel EHCI root hub, class 9/0, rev 2.00/1.00, addr 1 uhub4: 8 ports with 8 removable, self powered pcib3: <ACPI PCI-PCI bridge> at device 30.0 on pci0 pci3: <ACPI PCI bus> on pcib3 wi0: <Intersil Prism2.5> mem 0xd8000000-0xd8000fff irq 17 at device 1.0 on pci3 wi0: using RF:PRISM2.5 MAC:ISL3874A(Mini-PCI) wi0: Intersil Firmware: Primary (1.1.0), Station (1.4.9) wi0: Ethernet address: 00:0d:54:aa:62:12 fxp0: <Intel 82562EZ (ICH6)> port 0xccc0-0xccff mem 0xdfbff000-0xdfbfffff irq 20 at device 8.0 on pci3 miibus0: <MII bus> on fxp0 inphy0: <i82562ET 10/100 media interface> on miibus0 inphy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto fxp0: Ethernet address: 00:11:11:65:21:d4 pci0: <multimedia, audio> at device 30.2 (no driver attached) isab0: <PCI-ISA bridge> at device 31.0 on pci0 isa0: <ISA bus> on isab0 atapci0: <Intel ICH6 UDMA100 controller> port 0x1f0-0x1f7,0x3f6,0x170-0x177,0x376,0xffa0-0xffaf irq 16 at device 31.1 on pci0 ata0: <ATA channel 0> on atapci0 ata1: <ATA channel 1> on atapci0 atapci1: <Intel ICH6 SATA150 controller> port 0xfe00-0xfe07,0xfe10-0xfe13,0xfe20-0xfe27,0xfe30-0xfe33,0xfea0-0xfeaf irq 20 at device 31.2 on pci0 atapci1: failed to enable memory mapping! ata2: <ATA channel 0> on atapci1 ata3: <ATA channel 1> on atapci1 pci0: <serial bus, SMBus> at device 31.3 (no driver attached) atkbdc0: <Keyboard controller (i8042)> port 0x60,0x64 irq 1 on acpi0 atkbd0: <AT Keyboard> irq 1 on atkbdc0 kbd0 at atkbd0 atkbd0: [GIANT-LOCKED] ppc0: <ECP parallel printer port> port 0x378-0x37f,0x778-0x77f irq 7 on acpi0 ppc0: SMC-like chipset (ECP/EPP/PS2/NIBBLE) in COMPATIBLE mode ppc0: FIFO with 16/16/8 bytes threshold ppbus0: <Parallel port bus> on ppc0 plip0: <PLIP network interface> on ppbus0 lpt0: <Printer> on ppbus0 lpt0: Interrupt-driven port ppi0: <Parallel I/O> on ppbus0 sio0: <16550A-compatible COM port> port 0x3f8-0x3ff irq 4 flags 0x10 on acpi0 sio0: type 16550A pmtimer0 on isa0 orm0: <ISA Option ROMs> at iomem 0xc0000-0xce7ff,0xce800-0xcffff on isa0 sc0: <System console> at flags 0x100 on isa0 sc0: VGA <16 virtual consoles, flags=0x300> 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 isa0 ums0: vendor 0x413c product 0x3010, rev 2.00/2.20, addr 2, iclass 3/1 ums0: 3 buttons and Z dir. Timecounters tick every 1.000 msec acd0: DVDROM <SAMSUNG DVD-ROM SD-616E/F501> at ata0-master UDMA33 acd1: CDRW <HL-DT-ST GCE-8483B/B105> at ata0-slave UDMA33 ad4: 152627MB <Seagate ST3160023AS 8.05> at ata2-master SATA150 ATA PseudoRAID loaded lapic1: Forcing LINT1 to edge trigger SMP: AP CPU #1 Launched! Trying to mount root from ufs:/dev/ad4s3a pcm0: <Intel ICH6 (82801FB)> port 0xec00-0xecff,0xe8c0-0xe8ff mem 0xdffffe00-0xdfffffff,0xdffffd00-0xdffffdff irq 23 at device 30.2 on pci0 pcm0: [GIANT-LOCKED] pcm0: <Analog Devices AD1980 AC97 Codec> ieee80211_load_module: load the wlan_wep module by hand for now. wi0: link state changed to DOWN Btw., vmstat -i shows quite high apic timer interrupt rates, I guess this is normal for 6.0? interrupt total rate irq1: atkbd0 1856 1 irq13: npx0 1 0 irq14: ata0 94 0 irq17: wi0 506 0 irq20: fxp0 atapci1 73527 72 irq21: uhci0 ehci0 1 0 irq22: uhci1 4876 4 irq23: pcm0 uhci3 1008 0 lapic0: timer 2014791 1996 lapic1: timer 2014913 1996 Total 4111573 4074 I'll keep 6.0 on the machine for a couple days but then I'll have to revert to 5.4 because I need the machine as a workstation. mkb.
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