I have been using iosoop script (see http://www.opensolaris.org/os/community/dtrace/scripts/) written by Brendan Gregg to look at the IO operations of my application. When I was running my test-program on a UFS filesystem I could see both read and write operations like:
UID PID D BLOCK SIZE COMM PATHNAME 203803 4436 R 6016592 16384 diskio <none> 203803 4436 W 3448432 16384 diskio <none> 203803 4436 R 5510832 16384 diskio <none> 203803 4436 W 4652608 16384 diskio <none> But when I'm running my program on a ZFS file-system, I can only see the read io transfers: UID PID D BLOCK SIZE COMM PATHNAME 203803 4445 R 2647296 131072 diskio <none> 203803 4445 R 1351168 131072 diskio <none> So how can I get the same information from a ZFS file-system? The reason I'm asking is because I'm trying to see how IO operations behave on the different filesystems. Any help / pointers would be appreciated. Trond This message posted from opensolaris.org _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
