Date: Sun, 09 May 1999 15:44:46 +0300 From: Maxim Sobolev <sobomax@altavista.net> To: current@freebsd.org Subject: NPX code reports negative i586_bzero() bandwidth Message-ID: <3735833E.1B1011B4@altavista.net>
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I already submitted this (about a week ago).... :( Please take a look at negative bandwith reported by i586_bzero... (kernel cvsup'ed and rebuilded several minutes ago). Looks like data type owerflow (my machine have K6-2 266 running on 250MHz and 1MB of L2 cache). Calibrating clock(s) ... TSC clock: 250535974 Hz, i8254 clock: 1193028 Hz Timecounter "i8254" frequency 1193028 Hz CPU: AMD-K6(tm) 3D processor (250.54-MHz 586-class CPU) Origin = "AuthenticAMD" Id = 0x580 Stepping=0 Features=0x8001bf<FPU,VME,DE,PSE,TSC,MSR,MCE,CX8,MMX> Data TLB: 128 entries, 2-way associative Instruction TLB: 64 entries, 1-way associative L1 data cache: 32 kbytes, 32 bytes/line, 2 lines/tag, 2-way associative L1 instruction cache: 32 kbytes, 32 bytes/line, 2 lines/tag, 2-way associative Write Allocate Enable Limit: 64M bytes Write Allocate 15-16M bytes: Enable Hardware Write Allocate Control: Disable real memory = 67108864 (65536K bytes) Physical memory chunk(s): 0x00001000 - 0x0009ffff, 651264 bytes (159 pages) 0x00265000 - 0x03ffdfff, 64589824 bytes (15769 pages) sio0: system console avail memory = 62922752 (61448K bytes) Found BIOS32 Service Directory header at 0xc00faff0 Entry = 0xfb470 (0xc00fb470) Rev = 0 Len = 1 PCI BIOS entry at 0xb4a0 Other BIOS signatures found: ACPI: 00000000 $PnP: 000fc0b0 Preloaded elf kernel "kernel" at 0xc0250000. Initializing PnP override table Probing for PnP devices: Trying Read_Port at 203 PnP: CSN 1 COMP_DEVICE_ID = 0x0006d041 CSN 1 Vendor ID: CTL0028 [0x28008c0e] Serial 0x1013c276 Comp ID: PNP0600 [0x0006d041] Called nullpnp_probe with tag 0x00000001, type 0x28008c0e Called nullpnp_probe with tag 0x00000001, type 0x0006d041 pci_open(1): mode 1 addr port (0x0cf8) is 0x80000060 pci_open(1a): mode1res=0x80000000 (0x80000000) pci_cfgcheck: device 0 [class=060000] [hdr=00] is there (id=05971106) npx0: <math processor> on motherboard npx0: INT 16 interface i586_bzero() bandwidth = -2082577916 bytes/sec bzero() bandwidth = 184877056 bytes/sec Sincerely, Maxim To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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