On Sat, 2011-02-05 at 19:10 -0600, R. Ramesh wrote: [...] > So what does vmstat -d tell me? Is the number of IO under "total" column > supposed to be the number of IOs > issued to the controller with each IO being contiguous N sectors?
"man vmstat" says 'total' is "Total writes completed successfully". Vmstat shows the same numbers as "cat /sys/block/sda/stat" (presumably where it gets them from) and a copy of the linux documentation for this is at http://www.mjmwired.net/kernel/Documentation/block/stat.txt So yes, it looks like 'total' is the number of contiguous blocks of read or writes. (Though they may not be contiguous once they get onto NAND.) And 'sectors' the total size of all data read or written. -- Tixy () The ASCII Ribbon Campaign (www.asciiribbon.org) /\ Against HTML e-mail and proprietary attachments -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/1296984419.2351.18.ca...@computer2.home