Re: cmp(1) has a bottleneck, but where?

Task: cp(1) a several-GB file from one drive to another, then run cmp(1) to verify. Cp runs as expected, but cmp runs slower than expected. Neither the disks nor the cpu is maxed out. Local drives, no network involved. Machine is otherwise idle. >>> >>> 1. How are you runni

Re: cmp(1) has a bottleneck, but where?

On Mon, Jan 2, 2012 at 5:29 PM, Dieter BSD wrote: >>> Task: cp(1) a several-GB file from one drive to another, >>> then run cmp(1) to verify.  Cp runs as expected, but >>> cmp runs slower than expected.  Neither the disks >>> nor the cpu is maxed out.  Local drives, no network >>> involved.  Machi

Re: cmp(1) has a bottleneck, but where?

>> Task: cp(1) a several-GB file from one drive to another, >> then run cmp(1) to verify.  Cp runs as expected, but >> cmp runs slower than expected.  Neither the disks >> nor the cpu is maxed out.  Local drives, no network >> involved.  Machine is otherwise idle. > >    1. How are you running cmp?

Re: cmp(1) has a bottleneck, but where?

On Mon, Jan 2, 2012 at 2:19 PM, Dieter BSD wrote: > Task: cp(1) a several-GB file from one drive to another, > then run cmp(1) to verify.  Cp runs as expected, but > cmp runs slower than expected.  Neither the disks > nor the cpu is maxed out.  Local drives, no network > involved.  Machine is othe

cmp(1) has a bottleneck, but where?

Task: cp(1) a several-GB file from one drive to another, then run cmp(1) to verify.  Cp runs as expected, but cmp runs slower than expected.  Neither the disks nor the cpu is maxed out.  Local drives, no network involved.  Machine is otherwise idle. FreeBSD 8.2 amd64 4 GiB main memory FFS soft upd