I am using a USB to ATA adaptor and running a hard drive on that. It all works OK but both read's and writes seem very slow. gkrellm shows the hard drive averaging about 1.0K which I assume is 1kbps. I thought the USBus was capable of up to 12,000kbps. While I obviously don't expect anywhere near that performance I would like to know how I can find out what is going on and where my bottleneck could be.
If I plug the drive direct to my computer (so that it is the only device on the USB) I get about 1.5kbps in gkrellm, still not a great improvement. Suggestions on tools or proceedures to find out what is going on would be much appreciated. My Info Linux localhost 2.4.18 #2 Mon Mar 18 17:23:46 EST 2002 i686 unknown with preemtion and low latency patches ****** USB DEVICES ****** T: Bus=01 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#= 1 Spd=12 MxCh= 2 B: Alloc= 0/900 us ( 0%), #Int= 0, #Iso= 0 D: Ver= 1.00 Cls=09(hub ) Sub=00 Prot=00 MxPS= 8 #Cfgs= 1 P: Vendor=0000 ProdID=0000 Rev= 0.00 S: Product=USB UHCI Root Hub S: SerialNumber=3400 C:* #Ifs= 1 Cfg#= 1 Atr=40 MxPwr= 0mA I: If#= 0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=00 Driver=hub E: Ad=81(I) Atr=03(Int.) MxPS= 8 Ivl=255ms T: Bus=01 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#=112 Spd=12 MxCh= 0 D: Ver= 1.10 Cls=ff(vend.) Sub=00 Prot=ff MxPS=64 #Cfgs= 1 P: Vendor=05ab ProdID=0031 Rev= 1.10 S: Manufacturer=In-System Design S: Product=USB Storage Adapter S: SerialNumber=A4ECF2B21B028779 C:* #Ifs= 1 Cfg#= 1 Atr=c0 MxPwr= 98mA I: If#= 0 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=ff Driver=usb-storage E: Ad=01(O) Atr=02(Bulk) MxPS= 64 Ivl= 0ms E: Ad=82(I) Atr=02(Bulk) MxPS= 64 Ivl= 0ms E: Ad=83(I) Atr=03(Int.) MxPS= 2 Ivl= 32ms Many thanks David _______________________________________________________________ Don't miss the 2002 Sprint PCS Application Developer's Conference August 25-28 in Las Vegas -- http://devcon.sprintpcs.com/adp/index.cfm _______________________________________________ [EMAIL PROTECTED] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-users
