Hi Paul, "unreproducible" sounds so familiar .... During the execution of your request I stumbled upon the following output: root@tcload16:~# iotop -b | grep tar | grep -v -e start -e grep 10459 be/4 root 0.00 B/s 0.00 B/s 0.00 % 0.00 % tar -cvjf <cut off> 10459 be/4 root 5.57 M/s 0.00 B/s 0.00 % 5.70 % tar -cvjf <cut off> 10459 be/4 root 4.76 M/s 0.00 B/s 0.00 % 11.75 % tar -cvjf <cut off> 10459 be/4 root 4.72 M/s 0.00 B/s 0.00 % 12.90 % tar -cvjf <cut off>
So it's the first shot which fails. Since I intended to call "iotop -b -n1 -P" in my usage scenario I will be hit by that bad first line. The first screen is always wrong btw. Even without -b (e.g. "iotop -d60"). Regards, uwe > -----Original Message----- > From: Paul Wise [mailto:[email protected]] > Sent: Freitag, 25. Februar 2011 04:11 > To: Maier, Uwe; [email protected] > Cc: control > Subject: Re: Bug#614978: iotop: All values 0.0 when using -b parameter > > tags 614978 + unreproducible moreinfo > thanks > > On Thu, 2011-02-24 at 16:34 +0000, Maier, Uwe wrote: > > > When using the -b parameter which should enable the batch mode every > > value is reset to 0.0 . > > It works for me, are you sure your system is doing some I/O? Try > running > "cat /dev/zero > foo & sleep 20s ; kill %1 ; rm -f foo" in another > terminal to do 20 seconds worth of I/O and then stop. > > -- > bye, > pabs > > http://wiki.debian.org/PaulWise
