RE: IDE0 /dev/hda performance hit in 2217 on my HW - more info -maybe extended partitions

2000-11-14 Thread Andre Hedrick
Hi Linda, Are you having variable transfer rates based on the zone access point? If this is the case it is correctly reporting slow on the ID of the LBA range v/s the OD on the media. Regards, Andre Hedrick CTO Timpanogas Research Group EVP Linux Development, TRG Linux ATA Development - To un

RE: IDE0 /dev/hda performance hit in 2217 on my HW - more info - maybe extended partitions

2000-11-14 Thread LA Walsh
Again, the math says it's a rate near 5. So it still doesn't make sense. > -Original Message- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED]]On Behalf Of Andries Brouwer > Sent: Monday, November 13, 2000 4:59 PM > To: LA Walsh > Cc: lkml > Subject:

RE: IDE0 /dev/hda performance hit in 2217 on my HW

2000-11-14 Thread LA Walsh
According to hdparm, dma was already on. It was also suggested I try setting 32-bit mode and multcount (which I had tried before and not noticed much difference). Here's the current settings and results. Note that the timings still don't make alot of sense when comparing them to the vmstat numbe

Re: IDE0 /dev/hda performance hit in 2217 on my HW

2000-11-14 Thread Mike Dresser
check if DMA mode is still on, on your hard drive. I'm trying to remember if that behaviour changed for 2.2.17 LA Walsh wrote: > I skimmed over the archives and didn't find a mention of this. I thought > I'd noticed this when I first installed 2217, but I was too busy to verify > it at the tim

RE: IDE0 /dev/hda performance hit in 2217 on my HW - more info - maybe extended partitions

2000-11-13 Thread LA Walsh
cks/sec. Again, the math says it's a rate near 5m/s. So it still doesn't make sense. > -Original Message- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED]]On Behalf Of Andries Brouwer > Sent: Monday, November 13, 2000 4:59 PM > To: LA Walsh > Cc: lkml >

Re: IDE0 /dev/hda performance hit in 2217 on my HW

2000-11-13 Thread Peter Samuelson
[I wrote] > What chipset does the Inspiron 7500 use? (Probably Intel something. I just booted an Inspiron 5000. PIIX4. So in the kernel config, read the help on PIIX support and make sure to turn on 'use dma by default'. ...And you probably still want to at least try Andre's patch. Peter -

Re: IDE0 /dev/hda performance hit in 2217 on my HW

2000-11-13 Thread Peter Samuelson
[Linda Walsh] > Under 2217, the xfer speed drops to near 1,000K/s. This is for both > 'badblocks' > and a 'dd' if=/dev/hda of=/dev/hdb bs=256k. In both instances, I notice > a near 90% performance degredation. Off the top of my head it sounds like you are using the wrong ide i/o mode. Your ha

Re: IDE0 /dev/hda performance hit in 2217 on my HW - more info - maybe extended partitions

2000-11-13 Thread Andries Brouwer
On Mon, Nov 13, 2000 at 03:47:27PM -0800, LA Walsh wrote: > Some further information in response to a private email, I did hdparm -ti > under both > 2216 and 2217 -- they are identical -- this may be something weird > w/extended partitions... What nonsense. There is nothing special with extended

RE: IDE0 /dev/hda performance hit in 2217 on my HW - more info - maybe extended partitions

2000-11-13 Thread LA Walsh
Some further information in response to a private email, I did hdparm -ti under both 2216 and 2217 -- they are identical -- this may be something weird w/extended partitions... /dev/hda: multcount= 0 (off) I/O support = 0 (default 16-bit) unmaskirq= 0 (off) using_dma= 1 (on)