src-test2/sys/modules/dtrace, branch release/8.2.0_cvs FreeBSD source tree https://cgit-dev.freebsd.org/src-test2/atom?h=release%2F8.2.0_cvs 2011-02-16T16:18:46Z Copy releng/8.2 to release/8.2.0 for 8.2-RELEASE. 2011-02-16T16:18:46Z Ken Smith kensmith@FreeBSD.org 2011-02-16T16:18:46Z urn:sha1:dec99dafe5763ba1db6950342aa80a634169c083 Approved by: re (implicit) This commit was manufactured to restore the state of the 8.2-RELEASE image. Add the OpenSolaris dtrace lockstat provider. The lockstat provider 2009-05-26T20:28:22Z Stacey Son sson@FreeBSD.org 2009-05-26T20:28:22Z urn:sha1:a5aedd68b4eb5bb0cafdc51eb8f325c32543ad9a adds probes for mutexes, reader/writer and shared/exclusive locks to gather contention statistics and other locking information for dtrace scripts, the lockstat(1M) command and other potential consumers. Reviewed by: attilio jhb jb Approved by: gnn (mentor) Move dtnfsclient.c in the cddl tree to nfs_kdtrace.c in the nfsclient 2009-03-25T17:47:22Z Robert Watson rwatson@FreeBSD.org 2009-03-25T17:47:22Z urn:sha1:455f3aa24fda5c35e3c1cb0161bcb4fc192b2541 directory, since it's under a BSD license, and this keeps NFS internals- aware tracing parts close to NFS. MFC after: 1 month Suggested by: jhb Add dtnfsclient, a first cut at an NFSv2/v3 client reuest DTrace 2009-03-22T22:07:52Z Robert Watson rwatson@FreeBSD.org 2009-03-22T22:07:52Z urn:sha1:47294818f9fce12b4a0ce4ac11583c14dc0ad32f provider. The NFS client exposes 'start' and 'done' probes for NFSv2 and NFSv3 RPCs when using the new RPC implementation, passing in the vnode, mbuf chain, credential, and NFSv2 or NFSv3 procedure number. For 'done' probes, the error number is also available. Probes are named in the following way: ... nfsclient:nfs2:write:start nfsclient:nfs2:write:done ... nfsclient:nfs3:access:start nfsclient:nfs3:access:done ... Access to the unmarshalled arguments is not easily available at this point in the stack, but the passed probe arguments are sufficient to to a lot of interesting things in practice. Technically, these probes may cover multiple RPC retransmits, and even transactions if the transaction ID change as a result of authentication failure or a jukebox error from the server, but usefully capture the intent of a single NFS request, such as access, getattr, write, etc. Typical use might involve profiling RPC latency by system call, number of RPCs, how often a getattr leads to a call to access, when failed access control checks occur, etc. More detailed RPC information might best be provided by adding a krpc provider. It would also be useful to add NFS client probes for events such as the access cache or attribute cache satisfying requests without an RPC. Sponsored by: Google, Inc. MFC after: 1 month Fix a few problems related to building modules in /sys/modules (not 2009-02-12T14:44:15Z Nick Hibma n_hibma@FreeBSD.org 2009-02-12T14:44:15Z urn:sha1:999d2584669384c8693b5fa6ce28978a4961aa34 checked whether this applies to builds in /sys/*/compile/* as well): - Create empty opt_*.h files were missing - Hook up svr4 to the build. It compiles fine here, so no reason to disconnect it in the Makefile. were missing - Hook up svr4 to the build. It compiles fine here, so no reason to disconnect it in the Makefile. Add the DTrace test kernel module so that people can run the tests. 2008-05-31T09:37:40Z John Birrell jb@FreeBSD.org 2008-05-31T09:37:40Z urn:sha1:1f6d08865e4b8fe383b8a7f1c27569b34e4d602c Remove the dependency on lockstat. That its still work in progress. 2008-05-25T02:04:18Z John Birrell jb@FreeBSD.org 2008-05-25T02:04:18Z urn:sha1:2376c117f6a42521949916a51e7a18e70eb1690e Remove 'fasttrap' module for amd64 for now as the code is not there 2008-05-24T19:52:19Z Bjoern A. Zeeb bz@FreeBSD.org 2008-05-24T19:52:19Z urn:sha1:835f1f1216a072a9cf85babf31cb34557ede1563 in sys/cddl/dev/fasttrap. Leave out a couple of DTrace modules for now. 2008-05-24T04:36:07Z John Birrell jb@FreeBSD.org 2008-05-24T04:36:07Z urn:sha1:3a3f8cb44329a69a3eee5234fa4e06b26a57ebbf Add the DTrace kernel module makefiles. 2008-05-17T02:31:19Z John Birrell jb@FreeBSD.org 2008-05-17T02:31:19Z urn:sha1:b8915e90a27946bcfdbe54971a748ff966bbbf14