Re: 7200 RPM udma33 same speed as 5400 PIO mode 4

2000-02-11 Thread Rick Macdonald
On Thu, 10 Feb 2000 [EMAIL PROTECTED] wrote: On Thu, Feb 10, 2000 at 08:40:29AM -0700, Rick Macdonald generated a stream of 1s and 0s: I added a Maxtor 27GB 7200rpm ATA66 drive to my P200MMX when I upgraded to potatos and kernel 2.2.14. My motherboard (ASUS TX97-E) only supports

Re: 7200 RPM udma33 same speed as 5400 PIO mode 4

2000-02-11 Thread Dan Melomedman
Well, then I guess your IDE can't do it any faster. How fast is the machine, what chipset? -- Get the truth or risc frying your brains! -- www.truthinlabeling.org --

Re: 7200 RPM udma33 same speed as 5400 PIO mode 4

2000-02-11 Thread Dan Melomedman
Check out my interesting timings: /dev/hda: multcount= 0 (off) I/O support = 0 (default 16-bit) unmaskirq= 1 (on) using_dma= 0 (off) keepsettings = 0 (off) nowerr = 0 (off) readonly = 0 (off) readahead= 0 (off) geometry = 1232/255/63, sectors =

Re: 7200 RPM udma33 same speed as 5400 PIO mode 4

2000-02-11 Thread aphro
just because the drive has higher rpms does not mean its faster, drive technology (esp data density) has a major impact on performance, if the 5400rpm drive can store more data in less physical area it will perform faster then the 7200rpm. ive seen benchmarks that showed more modern 5400 drives

Re: 7200 RPM udma33 same speed as 5400 PIO mode 4

2000-02-11 Thread Phillip Deackes
Just throwing in my timings: /dev/hda: Timing buffered disk reads: 64 MB in 5.11 seconds = 12.52 MB/sec /dev/hda: Timing buffered disk reads: 64 MB in 5.27 seconds = 12.14 MB/sec /dev/hda: multcount= 0 (off) I/O support = 1 (32-bit) unmaskirq= 0 (off) using_dma= 1

Re: 7200 RPM udma33 same speed as 5400 PIO mode 4

2000-02-11 Thread Rick Macdonald
On Thu, 10 Feb 2000, Dan Melomedman wrote: Well, then I guess your IDE can't do it any faster. How fast is the machine, what chipset? P200MMX, Triton 430TX, IIRC (ASUS TX97-E). It seems like it must be the machine (motherboard). Surely UDMA2 (33MB/sec) 7200 RPM should be faster than the

Re: 7200 RPM udma33 same speed as 5400 PIO mode 4

2000-02-11 Thread Rick Macdonald
On Thu, 10 Feb 2000, Dan Melomedman wrote: Check out my interesting timings: using_dma= 0 (off) If I turn off using_dma, my 9.4 drops down to 5.2. None of the other switches make much difference except this one. ...RickM...

Re: 7200 RPM udma33 same speed as 5400 PIO mode 4

2000-02-11 Thread Dan Melomedman
On Fri, Feb 11, 2000 at 01:53:43PM -0700, Rick Macdonald generated a stream of 1s and 0s: On Thu, 10 Feb 2000, Dan Melomedman wrote: Check out my interesting timings: using_dma= 0 (off) If I turn off using_dma, my 9.4 drops down to 5.2. None of the other switches make much

Re: 7200 RPM udma33 same speed as 5400 PIO mode 4

2000-02-11 Thread Dan Melomedman
On Fri, Feb 11, 2000 at 01:53:43PM -0700, Rick Macdonald generated a stream of 1s and 0s: On Thu, 10 Feb 2000, Dan Melomedman wrote: Check out my interesting timings: using_dma= 0 (off) The reason why my dma is turned off is because there's no official Ali Alladin 5 chipset

Re: 7200 RPM udma33 same speed as 5400 PIO mode 4

2000-02-11 Thread Rick Macdonald
On Fri, 11 Feb 2000, Dan Melomedman wrote: Even if your drive can do UDMA33, it is only useful for transfers from the drive's cache, since only they can reach that high transfer speed, so that's where speed-ups come from, also this puts less strain on your CPU. If I understand what you're

7200 RPM udma33 same speed as 5400 PIO mode 4

2000-02-10 Thread Rick Macdonald
I added a Maxtor 27GB 7200rpm ATA66 drive to my P200MMX when I upgraded to potatos and kernel 2.2.14. My motherboard (ASUS TX97-E) only supports udma mode 2 (33MB/sec), but I find that this drive and my old WD 4GB (no UDMA) both show the same speed of about 9.4MB/sec with hdparm -t. Even if the

Re: 7200 RPM udma33 same speed as 5400 PIO mode 4

2000-02-10 Thread dan
On Thu, Feb 10, 2000 at 08:40:29AM -0700, Rick Macdonald generated a stream of 1s and 0s: I added a Maxtor 27GB 7200rpm ATA66 drive to my P200MMX when I upgraded to potatos and kernel 2.2.14. My motherboard (ASUS TX97-E) only supports udma mode 2 (33MB/sec), but I find that this drive and