http://bugzilla.kernel.org/show_bug.cgi?id=13909 --- Comment #12 from Michael B. Trausch <mike@xxxxxxxxxx> 2009-08-10 13:58:44 --- You said that the md5sum is hanging in the R state, yes? If so, it's not hanging at all. It's still computing the MD5 sum. What sort of disks are you using (IDE/SCSI/SATA)? What sort of CPU (cat /proc/cpuinfo)? How much RAM (free)? mbt@zest:~$ time md5sum sample.3gb c698c87fb53058d493492b61f4c74189 sample.3gb real 0m12.017s user 0m8.561s sys 0m3.276s This is on a system that isn't heavily loaded, with a 3.0Gbps SATA II drive holding the file. Try this to see if it really is hanging or not. Install the "pv" utility. It is available from http://www.ivarch.com/programs/pv.shtml -- and in many distributions (I can say for certain that it is in Ubuntu's repositories at the very least, and am pretty sure that it's on Debian and RH repositories, too). Then, run: cat YOUR_3GB_FILE | pv | md5sum This will show you how much data is being pushed through the pipe, and at what rate of speed. My system is able to push about 200MB/s through pv. This will give you a better, visual indication of what is going on. -- Configure bugmail: http://bugzilla.kernel.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are watching the assignee of the bug. -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
