Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Sat, 29 Dec 2001 11:28:20 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Sat, 29 Dec 2001 11:28:11 -0500 Received: from mout04.kundenserver.de ([195.20.224.89]:62796 "EHLO mout04.kundenserver.de") by vger.kernel.org with ESMTP id ; Sat, 29 Dec 2001 11:28:06 -0500 Date: Sat, 29 Dec 2001 17:29:30 +0100 From: Heinz Diehl To: linux-kernel@vger.kernel.org Subject: [2.5.2-pre3] Harddisk Performance Message-ID: <20011229162930.GA317@elfie.cavy.de> Mail-Followup-To: linux-kernel@vger.kernel.org Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.3.24-current-20011226i (Linux 2.4.17-spc i586) Organization: private site in Mannheim/Germany X-PGP-Key: To get my public-key, send mail with subject 'get pgpkey' Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Hi! Running 2.5.2-pre3, hdparm shows up very poor harddisk performance on my system compared to 2.4.x: [Kernel 2.5.2-pre3] elfie:~ # hdparm -tT /dev/hda /dev/hda: Timing buffer-cache reads: 128 MB in 1.77 seconds = 72.32 MB/sec Timing buffered disk reads: 64 MB in 22.09 seconds = 2.90 MB/sec ^^^^ [Kernel 2.4.17] elfie:~ # hdparm -tT /dev/hda /dev/hda: Timing buffer-cache reads: 128 MB in 1.81 seconds = 70.72 MB/sec Timing buffered disk reads: 64 MB in 6.61 seconds = 9.68 MB/sec ^^^^ The tests were made under the same circumstances, of course, so no other process can be the cause. Here come the harddisk and system informations: elfie:~ # hdparm -i /dev/hda /dev/hda: Model=IBM-DHEA-36481, FwRev=HP6OA20C, SerialNo=SG0SGFJ0623 Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs } RawCHS=12592/16/63, TrkSize=0, SectSize=0, ECCbytes=28 BuffType=DualPortCache, BuffSize=472kB, MaxMultSect=16, MultSect=16 CurCHS=12592/16/63, CurSects=12692736, LBA=yes, LBAsects=12692736 IORDY=on/off, tPIO={min:240,w/IORDY:120}, tDMA={min:120,rec:120} PIO modes: pio0 pio1 pio2 pio3 pio4 DMA modes: sdma0 sdma1 sdma2 mdma0 mdma1 mdma2 udma0 udma1 *udma2 Linux version 2.4.17 (root@elfie) (gcc version 2.95.3 20010315 (release)) #1 Sat Dec 29 12:05:30 CET 2001 BIOS-provided physical RAM map: BIOS-e820: 0000000000000000 - 00000000000a0000 (usable) BIOS-e820: 00000000000f0000 - 0000000000100000 (reserved) BIOS-e820: 0000000000100000 - 0000000010000000 (usable) BIOS-e820: 00000000ffff0000 - 0000000100000000 (reserved) On node 0 totalpages: 65536 zone(0): 4096 pages. zone(1): 61440 pages. zone(2): 0 pages. No local APIC present or hardware disabled Kernel command line: auto BOOT_IMAGE=Linux ro root=301 hdc=ide-scsi hdd=ide-scsi idebus=33 ide_setup: hdc=ide-scsi ide_setup: hdd=ide-scsi ide_setup: idebus=33 Initializing CPU#0 Detected 400.914 MHz processor. Console: colour VGA+ 80x25 Calibrating delay loop... 799.53 BogoMIPS Memory: 256696k/262144k available (841k kernel code, 5064k reserved, 216k data, 204k init, 0k highmem) Dentry-cache hash table entries: 32768 (order: 6, 262144 bytes) Inode-cache hash table entries: 16384 (order: 5, 131072 bytes) Mount-cache hash table entries: 4096 (order: 3, 32768 bytes) Buffer-cache hash table entries: 16384 (order: 4, 65536 bytes) CPU: Before vendor init, caps: 008021bf 808029bf 00000000, vendor = 2 CPU: L1 I Cache: 32K (32 bytes/line), D cache 32K (32 bytes/line) CPU: L2 Cache: 256K (32 bytes/line) CPU: After vendor init, caps: 008021bf 808029bf 00000000 00000002 CPU: After generic, caps: 008021bf 808029bf 00000000 00000002 CPU: Common caps: 008021bf 808029bf 00000000 00000002 CPU: AMD-K6(tm) 3D+ Processor stepping 01 Checking 'hlt' instruction... OK. POSIX conformance testing by UNIFIX mtrr: v1.40 (20010327) Richard Gooch (rgooch@atnf.csiro.au) mtrr: detected mtrr type: AMD K6 PCI: PCI BIOS revision 2.10 entry at 0xfb3c0, last bus=1 PCI: Using configuration type 1 PCI: Probing PCI hardware Unknown bridge resource 1: assuming transparent Unknown bridge resource 2: assuming transparent PCI: Using IRQ router VIA [1106/0586] at 00:07.0 Activating ISA DMA hang workarounds. Linux NET4.0 for Linux 2.4 Based upon Swansea University Computer Society NET3.039 Initializing RT netlink socket Starting kswapd Real Time Clock Driver v1.10e block: 128 slots per queue, batch=32 Uniform Multi-Platform E-IDE driver Revision: 6.31 ide: Assuming 33MHz system bus speed for PIO modes VP_IDE: IDE controller on PCI bus 00 dev 39 VP_IDE: chipset revision 6 VP_IDE: not 100% native mode: will probe irqs later VP_IDE: VIA vt82c586b (rev 41) IDE UDMA33 controller on pci00:07.1 ide0: BM-DMA at 0xe000-0xe007, BIOS settings: hda:DMA, hdb:DMA ide1: BM-DMA at 0xe008-0xe00f, BIOS settings: hdc:DMA, hdd:DMA hda: IBM-DHEA-36481, ATA DISK drive hdb: Conner Peripherals 1275MB - CFS1275A, ATA DISK drive hdc: CD-540E, ATAPI CD/DVD-ROM drive hdd: CD-W54E, ATAPI CD/DVD-ROM drive ide0 at 0x1f0-0x1f7,0x3f6 on irq 14 ide1 at 0x170-0x177,0x376 on irq 15 hda: 12692736 sectors (6499 MB) w/472KiB Cache, CHS=790/255/63, UDMA(33) hdb: 2496876 sectors (1278 MB) w/64KiB Cache, CHS=619/64/63, DMA Partition check: hda: hda1 hda2 hda3 < hda5 hda6 > hdb: hdb1 < hdb5 > Floppy drive(s): fd0 is 1.44M FDC 0 is a post-1991 82077 SCSI subsystem driver Revision: 1.00 scsi0 : SCSI host adapter emulation for IDE ATAPI devices Vendor: TEAC Model: CD-540E Rev: 3.0A Type: CD-ROM ANSI SCSI revision: 02 Vendor: TEAC Model: CD-W54E Rev: 1.1B Type: CD-ROM ANSI SCSI revision: 02 Attached scsi CD-ROM sr0 at scsi0, channel 0, id 0, lun 0 Attached scsi CD-ROM sr1 at scsi0, channel 0, id 1, lun 0 sr0: scsi3-mmc drive: 40x/40x cd/rw xa/form2 cdda tray Uniform CD-ROM driver Revision: 3.12 sr1: scsi3-mmc drive: 32x/32x writer cd/rw xa/form2 cdda tray NET4: Linux TCP/IP 1.0 for NET4.0 IP Protocols: ICMP, UDP, TCP IP: routing cache hash table of 2048 buckets, 16Kbytes TCP: Hash tables configured (established 16384 bind 16384) NET4: Unix domain sockets 1.0/SMP for Linux NET4.0. VFS: Mounted root (ext2 filesystem) readonly. Freeing unused kernel memory: 204k freed Adding Swap: 130748k swap-space (priority -1) [....] elfie:~ # lspci 00:00.0 Host bridge: VIA Technologies, Inc. VT82C598 [Apollo MVP3] (rev 04) 00:01.0 PCI bridge: VIA Technologies, Inc. VT82C598 [Apollo MVP3 AGP] 00:07.0 ISA bridge: VIA Technologies, Inc. VT82C586/A/B PCI-to-ISA [Apollo VP] (rev 41) 00:07.1 IDE interface: VIA Technologies, Inc. VT82C586 IDE [Apollo] (rev 06) 00:07.3 Host bridge: VIA Technologies, Inc. VT82C586B ACPI (rev 10) 00:11.0 VGA compatible controller: S3 Inc. ViRGE/DX or /GX (rev 01) -- # Heinz Diehl, 68259 Mannheim, Germany - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/