Messages in this thread | | | Date | Wed, 26 Dec 2001 20:25:35 +0100 | From | Guillaume Morin <> | Subject | Re: severe slowdown with 2.4 series w/heavy disk access |
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FYI,
I experience the same problem with recent kernels. I run 2.4.16. When I copy a file from one hd to another, ls'ing a empty directory takes about 6-7 secs.
Disks are
/dev/hda:
non-removable ATA device, with non-removable media Model Number: QUANTUM FIREBALLP LM15 Serial Number: 883011568812 Firmware Revision: A35.0700 Standards: Used: ATA/ATAPI-5 T13 1321D revision 1 Supported: 1 2 3 4 5 Configuration: Logical max current cylinders 16383 16383 heads 16 16 sectors/track 63 63 bytes/track: 32256 (obsolete) bytes/sector: 21298 (obsolete) current sector capacity: 16514064 LBA user addressable sectors = 29336832 Capabilities: LBA, IORDY(can be disabled) Buffer size: 1900.0kB ECC bytes: 4 Queue depth: 1 Standby timer values: spec'd by Vendor, no device specific minimum r/w multiple sector transfer: Max = 16 Current = 0 DMA: mdma0 mdma1 mdma2 udma0 udma1 udma2 udma3 *udma4 Cycle time: min=120ns recommended=120ns PIO: pio0 pio1 pio2 pio3 pio4 Cycle time: no flow control=120ns IORDY flow control=120ns Commands/features: Enabled Supported: * READ BUFFER cmd * WRITE BUFFER cmd * Host Protected Area feature set * look-ahead * write cache * Power Management feature set Security Mode feature set SMART feature set SET MAX security extension * DOWNLOAD MICROCODE cmd Security: Master password revision code = 65534 supported not enabled not locked not frozen not expired: security count not supported: enhanced erase 12min for SECURITY ERASE UNIT. HW reset results: CBLID- above Vih Device num = 0 determined by the jumper Checksum: correct
/dev/hdd:
non-removable ATA device, with non-removable media Model Number: WDC WD400BB-00CLB0 Serial Number: WD-WMAAN1229771 Firmware Revision: 05.04E05 Standards: Supported: 1 2 3 4 5 Likely used: 5 Configuration: Logical max current cylinders 16383 17475 heads 16 15 sectors/track 63 63 bytes/track: 57600 (obsolete) bytes/sector: 600 (obsolete) current sector capacity: 16513875 LBA user addressable sectors = 78165360 Capabilities: LBA, IORDY(can be disabled) Buffer size: 2048.0kB ECC bytes: 40 Queue depth: 1 Standby timer values: spec'd by standard, with device specific minimum r/w multiple sector transfer: Max = 16 Current = 16 DMA: mdma0 mdma1 mdma2 udma0 udma1 *udma2 udma3 udma4 udma5 Cycle time: min=120ns recommended=120ns PIO: pio0 pio1 pio2 pio3 pio4 Cycle time: no flow control=120ns IORDY flow control=120ns Commands/features: Enabled Supported: * READ BUFFER cmd * WRITE BUFFER cmd * Host Protected Area feature set * look-ahead * write cache * Power Management feature set Security Mode feature set SMART feature set SET MAX security extension * DOWNLOAD MICROCODE cmd Security: supported not enabled not locked not frozen not expired: security count not supported: enhanced erase HW reset results: CBLID- above Vih Device num = 1 determined by the jumper Checksum: correct
at boot :
ide0 at 0x1f0-0x1f7,0x3f6 on irq 14 ide1 at 0x170-0x177,0x376 on irq 15 hda: 29336832 sectors (15020 MB) w/1900KiB Cache, CHS=1826/255/63, UDMA(66) hdd: 78165360 sectors (40021 MB) w/2048KiB Cache, CHS=77545/16/63, UDMA(33)
Let me know if you want me to test patches or provide more information.
Regards,
-- Guillaume Morin <guillaume@morinfr.org>
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