Dear All, Is there any performance tools available under Linux environment to measure the performance of the mass storage drivers? Currently I am using DD and hdparm commands to get the data transfer rates of my device. By connecting my device to Windows I got lot of improvement in data rates. Linux -------- dd if=/dev/sdb1 of=/home/testing/disk.Image bs=1G count=1 1073741824 bytes (1.1 GB) copied, 30.091 s, 35.7 MB/s Windows (using Crystal Disk Mark performance measurement tool) ------------------------------------------------------------------------------------------------- I got 95.8 MB/s for the same device for 1 GB of data read. My question is, why there is lot of difference between Windows and Linux for the same device? I am using xHCI controller and Sarah Sharp driver. Thanks in advance. Regards, RD. -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html