Date: Tue, 25 Sep 2001 19:51:53 -0400 From: Chris Faulhaber <jedgar@fxp.org> To: freebsd-smp@FreeBSD.org Subject: Dual P5 slowdown between 4.3 and 4.4 Message-ID: <20010925195153.A53387@peitho.fxp.org>
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I just updated my Dual Pentium (P54C) box from RELENG_4_3 to RELENG_4 and have found that the box is significantly slower when running an SMP kernel versus UP. Under 4.3, an SMP -j4 buildworld took just over 4.5 hours. It now takes upwards of 20 hours w/SMP and 6 (no -j) UP. When logging in and running basic commands the system seems quite sluggish. Where should I start looking? -- Chris D. Faulhaber - jedgar@fxp.org - jedgar@FreeBSD.org -------------------------------------------------------- FreeBSD: The Power To Serve - http://www.FreeBSD.org Copyright (c) 1992-2001 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 4.4-RELEASE #0: Thu Sep 20 17:53:31 EDT 2001 root@merlin.wanmine.com:/usr/src/sys/compile/MERLIN-SMP Timecounter "i8254" frequency 1193182 Hz CPU: Pentium/P54C (165.72-MHz 586-class CPU) Origin = "GenuineIntel" Id = 0x52c Stepping = 12 Features=0x3bf<FPU,VME,DE,PSE,TSC,MSR,MCE,CX8,APIC> real memory = 67108864 (65536K bytes) avail memory = 61644800 (60200K bytes) Programming 24 pins in IOAPIC #0 IOAPIC #0 intpin 2 -> irq 0 IOAPIC #0 intpin 16 -> irq 10 IOAPIC #0 intpin 17 -> irq 12 IOAPIC #0 intpin 19 -> irq 5 FreeBSD/SMP: Multiprocessor motherboard cpu0 (BSP): apic id: 0, version: 0x00030010, at 0xfee00000 cpu1 (AP): apic id: 1, version: 0x00030010, at 0xfee00000 io0 (APIC): apic id: 2, version: 0x00170011, at 0xfec00000 Preloaded elf kernel "kernel" at 0xc0393000. Intel Pentium detected, installing workaround for F00F bug md0: Malloc disk Using $PIR table, 5 entries at 0xc00fdab0 npx0: <math processor> on motherboard npx0: INT 16 interface pcib0: <Host to PCI bridge> on motherboard pci0: <PCI bus> on pcib0 isab0: <Intel 82371SB PCI to ISA bridge> at device 7.0 on pci0 isa0: <ISA bus> on isab0 atapci0: <Intel PIIX3 ATA controller> port 0xf000-0xf00f at device 7.1 on pci0 ata1: at 0x170 irq 15 on atapci0 ahc0: <Adaptec 2940 Ultra SCSI adapter> port 0x6400-0x64ff mem 0xe0101000-0xe0101fff irq 5 at device 17.0 on pci0 aic7880: Ultra Wide Channel A, SCSI Id=7, 16/255 SCBs atapci1: <Promise ATA33 controller> port 0x7800-0x781f,0x7404-0x7407,0x7000-0x7007,0x6c04-0x6c07,0x6800-0x6807 irq 12 at device 19.0 on pci0 ata2: at 0x6800 on atapci1 ata3: at 0x7000 on atapci1 fxp0: <Intel Pro 10/100B/100+ Ethernet> port 0x7c00-0x7c1f mem 0xe0000000-0xe00fffff,0xe0100000-0xe0100fff irq 10 at device 20.0 on pci0 fxp0: Ethernet address 00:a0:c9:70:a4:ee inphy0: <i82555 10/100 media interface> on miibus0 inphy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto orm0: <Option ROMs> at iomem 0xc0000-0xc7fff,0xc8000-0xcefff,0xcf000-0xd2fff on isa0 fdc0: <NEC 72065B or clone> at port 0x3f0-0x3f5,0x3f7 irq 6 drq 2 on isa0 fdc0: FIFO enabled, 8 bytes threshold fd0: <1440-KB 3.5" drive> on fdc0 drive 0 atkbdc0: <Keyboard controller (i8042)> at port 0x60,0x64 on isa0 atkbd0: <AT Keyboard> irq 1 on atkbdc0 kbd0 at atkbd0 vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on isa0 sc0: <System console> at flags 0x100 on isa0 sc0: VGA <16 virtual consoles, flags=0x300> sio0 at port 0x3f8-0x3ff irq 4 flags 0x10 on isa0 sio0: type 16550A sio1 at port 0x2f8-0x2ff irq 3 on isa0 sio1: type 16550A ppc0: <Parallel port> at port 0x378-0x37f irq 7 on isa0 ppc0: SMC-like chipset (ECP/EPP/PS2/NIBBLE) in COMPATIBLE mode ppc0: FIFO with 16/16/15 bytes threshold ppbus0: IEEE1284 device found /NIBBLE Probing for PnP devices on ppbus0: ppbus0: <Hewlett-Packard HP LaserJet 6L/0101.01> PRINTER HP ENHANCED PCL5,PJL ppi0: <Parallel I/O> on ppbus0 lpt0: <Printer> on ppbus0 lpt0: Interrupt-driven port APIC_IO: Testing 8254 interrupt delivery APIC_IO: routing 8254 via IOAPIC #0 intpin 2 IP Filter: v3.4.20 initialized. Default = pass all, Logging = enabled SMP: AP CPU #1 Launched! ad4: 19473MB <Maxtor 92049U6> [39566/16/63] at ata2-master UDMA33 acd0-3: CDROM with 4 CD changer <NEC CD-ROM DRIVE:251> at ata1-master using PIO3 acd4-7: CDROM with 4 CD changer <NEC CD-ROM DRIVE:252> at ata1-slave using PIO3 Waiting 10 seconds for SCSI devices to settle Mounting root from ufs:/dev/da0s1a da0 at ahc0 bus 0 target 0 lun 0 da0: <IBM DNES-309170W SA30> Fixed Direct Access SCSI-3 device da0: 40.000MB/s transfers (20.000MHz, offset 8, 16bit), Tagged Queueing Enabled da0: 8748MB (17916240 512 byte sectors: 255H 63S/T 1115C) To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-smp" in the body of the message
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