[comp.sys.ibm.pc.hardware] ESDI drive too slow?

wilson@ix1.cc.utexas.edu (Samuel M. Wilson) (01/06/91)

I have a Dell 310 (20Mhz 386, 32Kb cache) with a connor 105 Mb drive,
and it seems the throughput to the drive might be slower than it should
be.  Coretst reports that track-track seeks are ~23Ms which is fine, but 
the tranfer rate is around 296 Kb/sec.  Does that sound right?  I am
running I/O intensive programs and right now, I/O seems to be the real
bottleneck.  The drive seems slower than my Seagate RLL 277 to me.

Sam Wilson 


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  Samuel M. Wilson                         wilson@ix1.cc.utexas.edu
  Department of Anthropology            University of Texas, Austin

roeve@cip-s01.informatik.rwth-aachen.de (Michael Roevenich) (01/07/91)

wilson@ix1.cc.utexas.edu (Samuel M. Wilson) writes:

>I have a Dell 310 (20Mhz 386, 32Kb cache) with a connor 105 Mb drive,
>and it seems the throughput to the drive might be slower than it should
>be.  Coretst reports that track-track seeks are ~23Ms which is fine, but 
>the tranfer rate is around 296 Kb/sec.  Does that sound right?  I am
>running I/O intensive programs and right now, I/O seems to be the real
>bottleneck.  The drive seems slower than my Seagate RLL 277 to me.

>Sam Wilson 

Hi Sam,

Coretest is for the thrashcan if you use drives with built-in caches,
as ESDI and SCSI-Drives. Try to measure using a simple stopwatch... you
will be surprised. Gee, your disk is fast, isn't it...

Greetings
Michael

Internet: roeve@rwthi3.informatik.rwth-aachen.de
UUCP:     ...unido!rwthi3!roeve
FIDO:     2:242/42.1 (Michael Roevenich)