Hey Kyle, > user| |user > asks| |gets > for | |the > io | Machine A |IO > ---- ----- > 1 |OS| |OS| 15 > 2 |NFS| |NFS| 14 > 3 |TCP| |TCP| 13 > ----------------------------------------------------------------- > network 4 |NET| |NET| 12 > ------------------------------------------------------------------ > 5 |TCP| Machine B |TCP| 11 > 6 |OS| |OS| 10 > 7 |NFS| |NFS| 9 > 8 |IO| > > The layers I measure now > users start and end time > 7 nfsv3:::op-read-start ,nfsv4:::op-read-start > 8 zfs_read:entry to zfs_read:return > 9 nfsv3:::op-read-done, nfsv4:::op-read-done > I'm wondering if and/or how I could measure the other layers.
You can use the ip provider for the IP component, but you'll need to resort to fbt to figure out the OS (what exactly are you looking for?), NFS client, and TCP components (or the tcp provider on builds 142 and later). To figure out what fbt functions to trace, here are some tips: fbt:nfs:nfs3_*:entry/return will get the NFSv3 client operations. For the TCP stuff, take a look at Alan McGuire's work (hg version 501806a754d21dae2120629e8d705674877328f2) to figure out the relevant functions to instrument with the fbt provider. I hope that helps. Adam -- Adam Leventhal, Delphix http://dtrace.org/blogs/ahl 275 Middlefield Road, Suite 50 Menlo Park, CA 94025 http://www.delphix.com _______________________________________________ dtrace-discuss mailing list dtrace-discuss@opensolaris.org
