From owner-freebsd-hardware Fri Feb 16 05:36:18 1996 Return-Path: owner-hardware Received: (from root@localhost) by freefall.freebsd.org (8.7.3/8.7.3) id FAA05151 for hardware-outgoing; Fri, 16 Feb 1996 05:36:18 -0800 (PST) Received: from gw2.att.com ([192.20.239.134]) by freefall.freebsd.org (8.7.3/8.7.3) with SMTP id FAA05146 for ; Fri, 16 Feb 1996 05:36:16 -0800 (PST) From: ejc@nasvr1.cb.att.com Received: from nasvr1.cb.att.com (naserver1.cb.att.com) by ig1.att.att.com id AA04817; Fri, 16 Feb 96 08:33:57 EST Received: by nasvr1.cb.att.com (5.x/EMS-1.1 Sol2) id AA12423; Fri, 16 Feb 1996 08:36:12 -0500 Cc: dob@nasvr1.cb.att.com Received: from ginger.cb.att.com by nasvr1.cb.att.com (5.x/EMS-1.1 Sol2) id AA12401; Fri, 16 Feb 1996 08:36:05 -0500 Received: by ginger.cb.att.com (5.x/EMS-1.1 Sol2) id AA20731; Fri, 16 Feb 1996 08:39:45 -0500 Date: Fri, 16 Feb 1996 08:39:45 -0500 Message-Id: <9602161339.AA20731@ginger.cb.att.com> To: freebsd-hardware@freebsd.org Subject: wb L2 cache improves sp3g by 10% Original-Cc: dob@nasvr1 X-Sun-Charset: US-ASCII Sender: owner-hardware@freebsd.org Precedence: bulk Hello Dirty tag sram improves sp3g performance by 10% - 11%, with a AMD 5x86 133 processor. I know there are a few people on this list using this mainboard, so I thought I would pass the info on. I have not done a make world yet. All times are in seconds. kernel build ------------ WB L2 cache: 408 user 42 system total 450 WT L2 cache: 455 user 45 system total 500 10% improvement 3D rendering engine(mine), rendering utah raster teapot @ 10000 triangles WB L2 cache: 205 total WT L2 cache: 229 total 10.5% improvement bonnie char IO which is cpu bound --------------------------------- WB L2 cache: 2566KB/sec WT L2 cache: 1544KB/sec 1M/second improvement dmesg ----- FreeBSD 2.2-CURRENT #0: Wed Feb 14 18:49:56 1996 ejc@gargoyle.bazzle.net:/var/usr/src/sys/compile/gargoyle CPU: i486DX (486-class CPU) Origin = "AuthenticAMD" Id = 0x4e4 real memory = 33554432 (32768K bytes) avail memory = 31469568 (30732K bytes) Probing for devices on PCI bus 0: chip0 rev 4 on pci0:0 chip1 rev 3 on pci0:2 ncr0 rev 2 int a irq 11 on pci0:5 ncr0 waiting for scsi devices to settle (ncr0:0:0): "SEAGATE ST15150W 0020" type 0 fixed SCSI 2 sd0(ncr0:0:0): Direct-Access sd0(ncr0:0:0): FAST SCSI-2 100ns (10 Mb/sec) offset 8. sd0(ncr0:0:0): WIDE SCSI (16 bit) enabled. 4095MB (8388315 512 byte sectors) (ncr0:1:0): "QUANTUM LP240S GM240S01X 6.4" type 0 fixed SCSI 2 sd1(ncr0:1:0): Direct-Access sd1(ncr0:1:0): FAST SCSI-2 100ns (10 Mb/sec) offset 8. 234MB (479350 512 byte sectors) (ncr0:2:0): "PLEXTOR CD-ROM DM-XX28 3.08" type 5 removable SCSI 2 cd0(ncr0:2:0): CD-ROM cd present [325252 x 2048 byte records] (ncr0:2:2): asynchronous. (ncr0:2:3): asynchronous. (ncr0:2:4): asynchronous. (ncr0:2:5): asynchronous. (ncr0:2:6): asynchronous. (ncr0:2:7): asynchronous. vga0 rev 1 on pci0:6 Probing for devices on the ISA bus: sc0 at 0x60-0x6f irq 1 on motherboard sc0: VGA color <16 virtual consoles, flags=0x0> sio0 at 0x3f8-0x3ff irq 4 on isa sio0: type 16550A sio1 at 0x2f8-0x2ff irq 3 on isa sio1: type 16550A lpt0 at 0x378-0x37f irq 7 on isa lpt0: Interrupt-driven port lp0: TCP/IP capable interface fdc0 at 0x3f0-0x3f7 irq 6 drq 2 on isa fdc0: NEC 72065B fd0: 1.44MB 3.5in npx0 on motherboard npx0: INT 16 interface new masks: bio c0000840, tty c003009a, net c003009a -- ejc work: ejc@nasvr1.cb.att.com home: ec0@ganet.net