Messages in this thread |  | | Date | Fri, 22 Dec 2000 17:24:13 -0500 | From | David Mansfield <> | Subject | cdrom changes in test13-pre2 slow down cdrom access by 70% |
| |
Jens,
The cdrom changes that went into test13-pre2 really kill the performance of my cdrom. I'm using cdparanoia to read audio data, and it normally reads at 2-3x. Since test13-pre2 it's down to .6 - .7x. I've reverted the following files to the ones from test13-pre1 and it's back to normal:
drivers/cdrom/cdrom.c drivers/ide/ide-cd.c drivers/ide/ide-cd.h drivers/scsi/sr.c drivers/scsi/sr.h drivers/scsi/sr-ioctl.c drivers/scsi/sr-vendor.c include/linux/cdrom.h
My hardware is:
Uniform Multi-Platform E-IDE driver Revision: 6.31 ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx AMD7409: IDE controller on PCI bus 00 dev 39 AMD7409: chipset revision 3 AMD7409: not 100% native mode: will probe irqs later AMD7409: disabling single-word DMA support (revision < C4) ide0: BM-DMA at 0xf000-0xf007, BIOS settings: hda:DMA, hdb:pio ide1: BM-DMA at 0xf008-0xf00f, BIOS settings: hdc:pio, hdd:pio hda: CREATIVE CD5230E, ATAPI CDROM drive ide0 at 0x1f0-0x1f7,0x3f6 on irq 14 hda: ATAPI 52X CD-ROM drive, 128kB Cache, DMA Uniform CD-ROM driver Revision: 3.11
The only IDE device (as you can see) is the cdrom drive.
This is a huge patch, is there some way I could break it apart to see what the relevant changes are?
David
-- David Mansfield (718) 963-2020 david@ultramaster.com Ultramaster Group, LLC www.ultramaster.com - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org Please read the FAQ at http://www.tux.org/lkml/
|  |